Walter,
I looked up your HP part number, 1884-0019, in my copy of the FedLog (Federal Logistics) database.
This is one of the first times it hasn't shown ANY equivalent part numbers and other manufacturers.
But it did have some technical descriptive data, which I'll paste below, in case it might be helpful.
Good luck!
Tom Gootee
-----------------------------------
Characteristics Data Response for NSN 5961-01-219-7784
Item Name: SEMICONDUCTOR DEVICE,THYRISTOR
MRC Requirement Statement Clear Text Reply
--------------------------------------------------------------------
NAME ITEM NAME SEMICONDUCTOR DEVICE,THYRISTOR
ABBH INCLOSURE MATERIAL METAL
ABHP OVERALL LENGTH 1.573 INCHES MAXIMUM
ABKW OVERALL HEIGHT 0.450 INCHES MAXIMUM
ABMK OVERALL WIDTH 1.050 INCHES MAXIMUM
AKPV MOUNTING FACILITY QUANTITY 2
ALAS INTERNAL CONFIGURATION JUNCTION CONTACT
ALAZ JOINT ELECTRONIC DEVICE TO-3
ENGINEERING
COUNCIL/JEDEC/CASE OUTLINE
DESIGNATION
ASCQ INTERNAL JUNCTION PNPN
CONFIGURATION
AXGY MOUNTING METHOD UNTHREADED HOLE
CBBL FEATURES PROVIDED HERMETICALLY SEALED CASE
CTMZ SEMICONDUCTOR MATERIAL SILICON
CTQN VOLTAGE RATING IN VOLTS PER 200.0 MAXIMUM REPETITIVE PEAK
CHARACTERISTIC REVERSE VOLTAGE AND 600.0
MAXIMUM REPETITIVE PEAK
OFF-STATE VOLTAGE
CTQX CURRENT RATING PER 12.50 AMPERES MAXIMUM ON-STATE
CHARACTERISTIC CURRENT, RMS TOTAL AND 200.00
AMPERES MAXIMUM PEAK ON-STATE
CURRENT, NONREPETITIVE
CTRD POWER RATING PER 40.0 WATTS MAXIMUM PEAK GATE
CHARACTERISTIC POWER DISSIPATION
PRPY PROPRIETARY CHARACTERISTICS MRCS
TTQY TERMINAL TYPE AND QUANTITY 2 PIN AND 1 CASE
________________________________________________________________________
Message: 1
Date: Fri, 30 Jan 2004 00:08:49 -0000
From: "wshawlee2" <walter2@...>
Subject: Looking for obscure HP 1884- xxxx series parts
Hi,
does anybody have some spare TO-3 Hp 1884-0019 parts?
they are SCRs or Triacs used in power supply pre-regulators, RCA was
the manufacturer. I need either the real part number or
some HP parts if avaiable. Not listed anywher in my bench briefs, or
on line archives, so any help appreciated.
many thanks,
walter
sphere research corporation
