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Complete List of TM500/5000 Mainframe Pass Transistors

 

¿ªÔÆÌåÓý

TEKTRONIX TM500/5000 MAINFRAME PASS TRANSISTORS

Compiled by Jerry Scheltgen and Dennis Tillman

?

Tek used at least 12 different pass transistor part numbers during

the time the TM500/5000 mainframes were in production. In some

cases different parts were used over certain serial number ranges.

The high power compartment (when present) used the higher current

transistors. Tek changed to different semiconductor families and/

or manufacturers (MFR####) over time.

?

Tek specified these parameters for the various part numbers used.

?

TEK PART TYPE? MFR####? Ic?? BVceo? PWR? hFE@Ic? VSat FtMIN CASE

-------- ----? -------? ---? ----- ----? ------? ---- ----- ------

151-0140 NPN?? 2N3055H? 15A? 60V?? 115W? 20@4A?? 1.1V .3MHz TO-3

151-0258 PNP?? 2N4905?? 15A? 60V??? 87W? 20@4A?? 3.V? 4.MHz TO-3

151-0349 NPN?? MJE2801? 10A? 60V??? 90W? 25@3A??????? 2.MHz TO-127

151-0373 PNP?? MJE2901? 10A? 60V? ??90W? 25@3A??????? 2.MHz TO-127

151-0413 NPN?? 2N6258?? 30A? 80V?? 250W? 20@15A? 3.V? .8MHz TO-3

151-0436 NPN?? MJE2801? 10A? 85V??? 90W? 25@3A??????? 2.MHz TO-127

151-0651 PNP?? TIP36C?? 25A? 100V? 125W? 10@15A? 4.V? 3.MHZ TO-218

151-0652 NPN?? TIP35C?? 25A? 100V? 125W? 10@15A? 4.V? 3.MHZ TO-218

151-0917 NPN????????????????? NO DATA

151-0918 PNP????????????????? NO DATA

151-0937 NPN?? MJF3055??????? NO DATA?????????????????????? TO-220

151-0938 PNP?? MJF2955??????? NO DATA?????????????????????? TO-220

?

**

TM501

NPN 151-0349 (Select from MJE2801, MFR####: SJE924)

PNP 151-0373 (MFR####: SJE925)

**

TM501A

NPN 151-0349 (Select from MJE2801, MFR####: SJE924)

PNP 151-0373 (MFR####: SJE925)

**

TM502A

NPN 151-0436 (MFR####: SJE966, MJF3055), 151-0937 (MFR###: MJF3055)?

PNP 151-0373 (SJE925 SEL VER), 151-0938 (MFG####: MJF2955)

**

TM503

NPN 151-0349 (SEL FROM MJE2801)

PNP 151-0373 (SJE925 SEL VER)??

**

TM503A

NPN 151-0436 SJE966 SEL VER

PNP 151-0373 SJE925 SEL VER, MJF2955, 151-0938

**

TM503B

NPN 151-0937 MJF3055

PNP 151-0938 MJF2955

**

TM504 verify on later versions

NPN 151-0436, 151-0413 (OPTION 2 ONLY, 2N6258 HI PWR COMP)

??? 151-0140 (STANDARD ONLY)

PNP 151-0373, SJ7028, 151-0258 (OLDER VER HI PWR COMP MJ2955)

**

TM504A

NPN NO DATA

PNP NO DATA

**

TM515

NPN 151-0436 TO-127 (Select from SJE966)

PNP 151-0373 TO-127 (SJE925)

**

TM506

NPN 151-0436, 151-0140

PNP 151-0373, 151-0258 (MFG####: MJ2955)

**

TM506A

NPN 151-0917, 151-0652 (MFG####: TIP35C)

PNP 151-0918, 151-0651 (MFG####: TIP36C)

**

TM5003

NPN 151-0436 (Select from SJE966), 151-0937 (MFG####: MJF3055)

PNP 151-0938 (MFG####: MJF2955), 151-0373 (MFG####: SJE925)

**

TM5006

NPN 151-0436 (Select from SJE966), 151-0140 (MFG####:SJ7020)

PNP 151-0373 (MFG####: SJE925), 151-0258

**

TM5006A

NPN 151-0937 (MFG####: MJF3055), 151-0652 (MFG####: TIP35C)

PNP 151-0938 (MFG####: MJF2955), 151-0651 (MFG####: TIP36C)

**

?

-30-

?
 

I believe the MJF 2955 and 3055 are the exact same die as in the original 2N2955 and 3055, in TO-220 rather than TO-3. The specs except for power dissipation should be the same - I hope that helps fill in the spec table.

I think any of these should be good subs for each other as long as the type (NPN/PNP) is right, the correct pinout is attainable, and the size is right - the high power hole needs bigger devices.

Since these are almost always used as power supply pass regulators for the plug-ins, what matters most is the DC-SOA ratings. The transistors in this size and rating class should be similar in that respect, but when in doubt, always consider the SOA graphs when comparing possible substitutes, versus the original designed-in parts. With the wide variety of plug-ins, it will be nearly impossible to predict tha actual DC operating condition limits, so use the original part SOA curve as the benchmark to be met or exceeded.

Ed

--- In TekScopes@..., "Dennis Tillman" <dennis@...> wrote:

TEKTRONIX TM500/5000 MAINFRAME PASS TRANSISTORS

Compiled by Jerry Scheltgen and Dennis Tillman



Tek used at least 12 different pass transistor part numbers during

the time the TM500/5000 mainframes were in production. In some

cases different parts were used over certain serial number ranges.

The high power compartment (when present) used the higher current

transistors. Tek changed to different semiconductor families and/

or manufacturers (MFR####) over time.



Tek specified these parameters for the various part numbers used.



TEK PART TYPE MFR#### Ic BVceo PWR hFE@Ic VSat FtMIN CASE

-------- ---- ------- --- ----- ---- ------ ---- ----- ------

151-0140 NPN 2N3055H 15A 60V 115W 20@4A 1.1V .3MHz TO-3

151-0258 PNP 2N4905 15A 60V 87W 20@4A 3.V 4.MHz TO-3

151-0349 NPN MJE2801 10A 60V 90W 25@3A 2.MHz TO-127

151-0373 PNP MJE2901 10A 60V 90W 25@3A 2.MHz TO-127

151-0413 NPN 2N6258 30A 80V 250W 20@15A 3.V .8MHz TO-3

151-0436 NPN MJE2801 10A 85V 90W 25@3A 2.MHz TO-127

151-0651 PNP TIP36C 25A 100V 125W 10@15A 4.V 3.MHZ TO-218

151-0652 NPN TIP35C 25A 100V 125W 10@15A 4.V 3.MHZ TO-218

151-0917 NPN NO DATA

151-0918 PNP NO DATA

151-0937 NPN MJF3055 NO DATA TO-220

151-0938 PNP MJF2955 NO DATA TO-220



**

TM501

NPN 151-0349 (Select from MJE2801, MFR####: SJE924)

PNP 151-0373 (MFR####: SJE925)

**

TM501A

NPN 151-0349 (Select from MJE2801, MFR####: SJE924)

PNP 151-0373 (MFR####: SJE925)

**

TM502A

NPN 151-0436 (MFR####: SJE966, MJF3055), 151-0937 (MFR###: MJF3055)

PNP 151-0373 (SJE925 SEL VER), 151-0938 (MFG####: MJF2955)

**

TM503

NPN 151-0349 (SEL FROM MJE2801)

PNP 151-0373 (SJE925 SEL VER)

**

TM503A

NPN 151-0436 SJE966 SEL VER

PNP 151-0373 SJE925 SEL VER, MJF2955, 151-0938

**

TM503B

NPN 151-0937 MJF3055

PNP 151-0938 MJF2955

**

TM504 verify on later versions

NPN 151-0436, 151-0413 (OPTION 2 ONLY, 2N6258 HI PWR COMP)

151-0140 (STANDARD ONLY)

PNP 151-0373, SJ7028, 151-0258 (OLDER VER HI PWR COMP MJ2955)

**

TM504A

NPN NO DATA

PNP NO DATA

**

TM515

NPN 151-0436 TO-127 (Select from SJE966)

PNP 151-0373 TO-127 (SJE925)

**

TM506

NPN 151-0436, 151-0140

PNP 151-0373, 151-0258 (MFG####: MJ2955)

**

TM506A

NPN 151-0917, 151-0652 (MFG####: TIP35C)

PNP 151-0918, 151-0651 (MFG####: TIP36C)

**

TM5003

NPN 151-0436 (Select from SJE966), 151-0937 (MFG####: MJF3055)

PNP 151-0938 (MFG####: MJF2955), 151-0373 (MFG####: SJE925)

**

TM5006

NPN 151-0436 (Select from SJE966), 151-0140 (MFG####:SJ7020)

PNP 151-0373 (MFG####: SJE925), 151-0258

**

TM5006A

NPN 151-0937 (MFG####: MJF3055), 151-0652 (MFG####: TIP35C)

PNP 151-0938 (MFG####: MJF2955), 151-0651 (MFG####: TIP36C)

**



-30-
 

On Sat, Dec 15, 2012 at 10:57 AM, Ed Breya <edbreya@...> wrote:
I believe the MJF 2955 and 3055 are the exact same die as in the original 2N2955 and 3055, in TO-220 rather than TO-3. The specs except for power dissipation should be the same - I hope that helps fill in the spec table.
The MJF parts are 90V 10A in TO220F. They are current OnSemi parts so
you can look at the datasheets. 2N3055 is 60V 15A, so not necessarily
the same die.

(And the MJF parts are only rated at 30W, because of the Fullpak... so
use with caution.)
 

Hello to all,
?
The MJFxxxx package is the isolated case?version of the TO-220 MJExxxxT metal power tab TO-220 version with much less thermal?conductance and power capability. The original MJE TO-127 versions are typically good for 90 watt max dissipation. The TO-220(T) is good for 60-75W dissipation, and the MJF package good for 30-50W max.
?
FYI, the 2N3055 TO-3 version also went though a change in the die/mount/connection structure/design a couplel decades ago. It seems the new versions can't handle the same instant overload, etc. that the old ones can.
?
We at where I work have also found the same issue on LEDs. The old Monsanto MV5752A generic red LED could handle a lot of short pulses at?high current, up to the maximum power dissipation rating. The new ones?fail in about 3 flashes of the LED under the same conditions.
?
My input for today.
?
Regards,
?
Jim


--- On Sat, 12/15/12, Ed Breya wrote:

From: Ed Breya
Subject: [TekScopes] Re: Complete List of TM500/5000 Mainframe Pass Transistors
To: TekScopes@...
Date: Saturday, December 15, 2012, 12:57 PM

I believe the MJF 2955 and 3055 are the exact same die as in the original 2N2955 and 3055, in TO-220 rather than TO-3. The specs except for power dissipation should be the same - I hope that helps fill in the spec table.

I think any of these should be good subs for each other as long as the type (NPN/PNP) is right, the correct pinout is attainable, and the size is right - the high power hole needs bigger devices.

Since these are almost always used as power supply pass regulators for the plug-ins, what matters most is the DC-SOA ratings. The transistors in this size and rating class should be similar in that respect, but when in doubt, always consider the SOA graphs when comparing possible substitutes, versus the original designed-in parts. With the wide variety of plug-ins, it will be nearly impossible to predict tha actual DC operating condition limits, so use the original part SOA curve as the benchmark to be met or exceeded.

Ed

--- In , "Dennis Tillman" >
> TEKTRONIX TM500/5000 MAINFRAME PASS TRANSISTORS
>
> Compiled by Jerry Scheltgen and Dennis Tillman
>
>?
>
> Tek used at least 12 different pass transistor part numbers during
>
> the time the TM500/5000 mainframes were in production. In some
>
> cases different parts were used over certain serial number ranges.
>
> The high power compartment (when present) used the higher current
>
> transistors. Tek changed to different semiconductor families and/
>
> or manufacturers (MFR####) over time.
>
>?
>
> Tek specified these parameters for the various part numbers used.
>
>?
>
> TEK PART TYPE? MFR####? Ic???BVceo? PWR? hFE@Ic? VSat FtMIN CASE
>
> -------- ----? -------? ---? ----- ----? ------? ---- ----- ------
>
> 151-0140 NPN???2N3055H? 15A? 60V???115W? 20@4A???1.1V .3MHz TO-3
>
> 151-0258 PNP???2N4905???15A? 60V? ? 87W? 20@4A???3.V? 4.MHz TO-3
>
> 151-0349 NPN???MJE2801? 10A? 60V? ? 90W? 25@3A? ? ? ? 2.MHz TO-127
>
> 151-0373 PNP???MJE2901? 10A? 60V? ? 90W? 25@3A? ? ? ? 2.MHz TO-127
>
> 151-0413 NPN???2N6258???30A? 80V???250W? 20@15A? 3.V? .8MHz TO-3
>
> 151-0436 NPN???MJE2801? 10A? 85V? ? 90W? 25@3A? ? ? ? 2.MHz TO-127
>
> 151-0651 PNP???TIP36C???25A? 100V? 125W? 10@15A? 4.V? 3.MHZ TO-218
>
> 151-0652 NPN???TIP35C???25A? 100V? 125W? 10@15A? 4.V? 3.MHZ TO-218
>
> 151-0917 NPN? ? ? ? ? ? ? ? ? NO DATA
>
> 151-0918 PNP? ? ? ? ? ? ? ? ? NO DATA
>
> 151-0937 NPN???MJF3055? ? ? ? NO DATA? ? ? ? ? ? ? ? ? ? ???TO-220
>
> 151-0938 PNP???MJF2955? ? ? ? NO DATA? ? ? ? ? ? ? ? ? ? ???TO-220
>
>?
>
> **
>
> TM501
>
> NPN 151-0349 (Select from MJE2801, MFR####: SJE924)
>
> PNP 151-0373 (MFR####: SJE925)
>
> **
>
> TM501A
>
> NPN 151-0349 (Select from MJE2801, MFR####: SJE924)
>
> PNP 151-0373 (MFR####: SJE925)
>
> **
>
> TM502A
>
> NPN 151-0436 (MFR####: SJE966, MJF3055), 151-0937 (MFR###: MJF3055)?
>
> PNP 151-0373 (SJE925 SEL VER), 151-0938 (MFG####: MJF2955)
>
> **
>
> TM503
>
> NPN 151-0349 (SEL FROM MJE2801)
>
> PNP 151-0373 (SJE925 SEL VER)???
>
> **
>
> TM503A
>
> NPN 151-0436 SJE966 SEL VER
>
> PNP 151-0373 SJE925 SEL VER, MJF2955, 151-0938
>
> **
>
> TM503B
>
> NPN 151-0937 MJF3055
>
> PNP 151-0938 MJF2955
>
> **
>
> TM504 verify on later versions
>
> NPN 151-0436, 151-0413 (OPTION 2 ONLY, 2N6258 HI PWR COMP)
>
>? ???151-0140 (STANDARD ONLY)
>
> PNP 151-0373, SJ7028, 151-0258 (OLDER VER HI PWR COMP MJ2955)
>
> **
>
> TM504A
>
> NPN NO DATA
>
> PNP NO DATA
>
> **
>
> TM515
>
> NPN 151-0436 TO-127 (Select from SJE966)
>
> PNP 151-0373 TO-127 (SJE925)
>
> **
>
> TM506
>
> NPN 151-0436, 151-0140
>
> PNP 151-0373, 151-0258 (MFG####: MJ2955)
>
> **
>
> TM506A
>
> NPN 151-0917, 151-0652 (MFG####: TIP35C)
>
> PNP 151-0918, 151-0651 (MFG####: TIP36C)
>
> **
>
> TM5003
>
> NPN 151-0436 (Select from SJE966), 151-0937 (MFG####: MJF3055)
>
> PNP 151-0938 (MFG####: MJF2955), 151-0373 (MFG####: SJE925)
>
> **
>
> TM5006
>
> NPN 151-0436 (Select from SJE966), 151-0140 (MFG####:SJ7020)
>
> PNP 151-0373 (MFG####: SJE925), 151-0258
>
> **
>
> TM5006A
>
> NPN 151-0937 (MFG####: MJF3055), 151-0652 (MFG####: TIP35C)
>
> PNP 151-0938 (MFG####: MJF2955), 151-0651 (MFG####: TIP36C)
>
> **
>
>?
>
> -30-
>




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The way I remember it and I think Bob Pease discussed this in his book
is that the oldest 2N3055 transistor was fabricated using a mesa
process which resulted in basically no secondary breakdown but low Ft
which is consistent with the list just posted showing an Ft of 0.3
MHz. Later replacements uses diffusion processes which both raised
the Ft into the 2 to 3 MHz range, sometimes causing oscillation
problems in older circuits, and lowered the secondary breakdown limits
significantly.

Considering the wide range of Ft specifications shown in the list, I
would not hesitate at all to use a any modern low Ft replacement and
would worry more about power handling capability and breakdown limits.
As far as the pinout problem goes, add some short lead wires and bolt
the transistor down in a more convenient location as is done with the
high power compartment TO-3 pass transistors.

On Sat, 15 Dec 2012 14:04:08 -0800 (PST), Jim Reese <nfeinc@...>
wrote:

Hello to all,
?
The MJFxxxx package is the isolated case?version of the TO-220 MJExxxxT metal power tab TO-220 version with much less thermal?conductance and power capability. The original MJE TO-127 versions are typically good for 90 watt max dissipation. The TO-220(T) is good for 60-75W dissipation, and the MJF package good for 30-50W max.
?
FYI, the 2N3055 TO-3 version also went though a change in the die/mount/connection structure/design a couplel decades ago. It seems the new versions can't handle the same instant overload, etc. that the old ones can.
?
We at where I work have also found the same issue on LEDs. The old Monsanto MV5752A generic red LED could handle a lot of short pulses at?high current, up to the maximum power dissipation rating. The new ones?fail in about 3 flashes of the LED under the same conditions.
?
My input for today.
?
Regards,
?
Jim

--- On Sat, 12/15/12, Ed Breya <edbreya@...> wrote:


From: Ed Breya <edbreya@...>
Subject: [TekScopes] Re: Complete List of TM500/5000 Mainframe Pass Transistors
To: TekScopes@...
Date: Saturday, December 15, 2012, 12:57 PM


I believe the MJF 2955 and 3055 are the exact same die as in the original 2N2955 and 3055, in TO-220 rather than TO-3. The specs except for power dissipation should be the same - I hope that helps fill in the spec table.

I think any of these should be good subs for each other as long as the type (NPN/PNP) is right, the correct pinout is attainable, and the size is right - the high power hole needs bigger devices.

Since these are almost always used as power supply pass regulators for the plug-ins, what matters most is the DC-SOA ratings. The transistors in this size and rating class should be similar in that respect, but when in doubt, always consider the SOA graphs when comparing possible substitutes, versus the original designed-in parts. With the wide variety of plug-ins, it will be nearly impossible to predict tha actual DC operating condition limits, so use the original part SOA curve as the benchmark to be met or exceeded.

Ed

--- In TekScopes@..., "Dennis Tillman" <dennis@...> wrote:

TEKTRONIX TM500/5000 MAINFRAME PASS TRANSISTORS

Compiled by Jerry Scheltgen and Dennis Tillman

?

Tek used at least 12 different pass transistor part numbers during

the time the TM500/5000 mainframes were in production. In some

cases different parts were used over certain serial number ranges.

The high power compartment (when present) used the higher current

transistors. Tek changed to different semiconductor families and/

or manufacturers (MFR####) over time.

?

Tek specified these parameters for the various part numbers used.

?

TEK PART TYPE? MFR####? Ic???BVceo? PWR? hFE@Ic? VSat FtMIN CASE

-------- ----? -------? ---? ----- ----? ------? ---- ----- ------

151-0140 NPN???2N3055H? 15A? 60V???115W? 20@4A???1.1V .3MHz TO-3

151-0258 PNP???2N4905???15A? 60V? ? 87W? 20@4A???3.V? 4.MHz TO-3

151-0349 NPN???MJE2801? 10A? 60V? ? 90W? 25@3A? ? ? ? 2.MHz TO-127

151-0373 PNP???MJE2901? 10A? 60V? ? 90W? 25@3A? ? ? ? 2.MHz TO-127

151-0413 NPN???2N6258???30A? 80V???250W? 20@15A? 3.V? .8MHz TO-3

151-0436 NPN???MJE2801? 10A? 85V? ? 90W? 25@3A? ? ? ? 2.MHz TO-127

151-0651 PNP???TIP36C???25A? 100V? 125W? 10@15A? 4.V? 3.MHZ TO-218

151-0652 NPN???TIP35C???25A? 100V? 125W? 10@15A? 4.V? 3.MHZ TO-218

151-0917 NPN? ? ? ? ? ? ? ? ? NO DATA

151-0918 PNP? ? ? ? ? ? ? ? ? NO DATA

151-0937 NPN???MJF3055? ? ? ? NO DATA? ? ? ? ? ? ? ? ? ? ???TO-220

151-0938 PNP???MJF2955? ? ? ? NO DATA? ? ? ? ? ? ? ? ? ? ???TO-220

?

**

TM501

NPN 151-0349 (Select from MJE2801, MFR####: SJE924)

PNP 151-0373 (MFR####: SJE925)

**

TM501A

NPN 151-0349 (Select from MJE2801, MFR####: SJE924)

PNP 151-0373 (MFR####: SJE925)

**

TM502A

NPN 151-0436 (MFR####: SJE966, MJF3055), 151-0937 (MFR###: MJF3055)?

PNP 151-0373 (SJE925 SEL VER), 151-0938 (MFG####: MJF2955)

**

TM503

NPN 151-0349 (SEL FROM MJE2801)

PNP 151-0373 (SJE925 SEL VER)???

**

TM503A

NPN 151-0436 SJE966 SEL VER

PNP 151-0373 SJE925 SEL VER, MJF2955, 151-0938

**

TM503B

NPN 151-0937 MJF3055

PNP 151-0938 MJF2955

**

TM504 verify on later versions

NPN 151-0436, 151-0413 (OPTION 2 ONLY, 2N6258 HI PWR COMP)

? ???151-0140 (STANDARD ONLY)

PNP 151-0373, SJ7028, 151-0258 (OLDER VER HI PWR COMP MJ2955)

**

TM504A

NPN NO DATA

PNP NO DATA

**

TM515

NPN 151-0436 TO-127 (Select from SJE966)

PNP 151-0373 TO-127 (SJE925)

**

TM506

NPN 151-0436, 151-0140

PNP 151-0373, 151-0258 (MFG####: MJ2955)

**

TM506A

NPN 151-0917, 151-0652 (MFG####: TIP35C)

PNP 151-0918, 151-0651 (MFG####: TIP36C)

**

TM5003

NPN 151-0436 (Select from SJE966), 151-0937 (MFG####: MJF3055)

PNP 151-0938 (MFG####: MJF2955), 151-0373 (MFG####: SJE925)

**

TM5006

NPN 151-0436 (Select from SJE966), 151-0140 (MFG####:SJ7020)

PNP 151-0373 (MFG####: SJE925), 151-0258

**

TM5006A

NPN 151-0937 (MFG####: MJF3055), 151-0652 (MFG####: TIP35C)

PNP 151-0938 (MFG####: MJF2955), 151-0651 (MFG####: TIP36C)

**

?

-30-



------------------------------------

Yahoo! Groups Links
 

---In TekScopes@..., <dennis@...> wrote :

> TEKTRONIX TM500/5000 MAINFRAME PASS TRANSISTORS
> Compiled by Jerry Scheltgen and Dennis Tillman


Hey guys, thanks for compiling this.
Here's an HTML "spreadsheet" view of the same thing that cross-references the modules to their transistors by part number, to parameters <>.
I've also uploaded an EXCEL spreadsheet to the forum archive named "TM5XX Module Pass Transistors.xlsx" - I can't find a good way to link the dang thing...


If you notice any errors in my transcription, please let me know and I'll fix them.
 

Jerry / Dennis,
I just copy/pasted the linked page into a blank spreadsheet - looks great.One minor point I noticed was that the "Type" column is duplicated.
Great job; obviously a lot of work. Thanks
?HankC, Boston
WA1HOS
 

Hi,

A very useful list !!
Good job thanks !!
 

A word of thanks to Jerry, Dennis and Siggi for the time you have spent when creating and releasing this very useful list.

Highly appreciated!

Cheers,

Magnus
 

Hey Magnus,

thanks, but the credit is all to Jerry & Dennis, as they did all the hard work of gathering and collating the data.
I just pushed their data into a spreadsheet, took me all of 10 minutes. The file in the downloads section should be easier to link and to find than the original thread (sadly).


Siggi

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