Motorola
Motorola JAN 2N652A PNP Germanium Transistor, TO-5, Military Qualified
- 3 photos
Never used. The original pack has been opened, or the quantity was split off a full reel or tube. Leads are original and unclipped.
New old stock, open stock on the grading scaleSend the quantity you need. You get a quote back with shipping before anything is charged.
Video
Filmed on the bench. Sound is stripped from product clips.
- 0:03
Specifications
| Specification | Value |
|---|---|
| Identification | |
| Part number | 2N652A |
| Manufacturer | Motorola |
| Condition | New old stock, open stock |
| Date code | 8042K |
| Package | TO-5 hermetically sealed metal can |
| Country of origin | Not recorded |
| Family | 2N652 |
| Stock number | R2GN5VA3 |
| Overview | |
| Manufacturer part number | 2N652A |
| Manufacturer | Motorola. CGG is its code within the JAN system |
| Qualification | JAN, Joint Army Navy |
| Production coding | 8042K, which reads as week 42 of 1980 |
| Electrical | |
| Polarity and material | PNP germanium |
| Collector voltage | About 45 V |
| Collector current | About 500 mA |
| Dissipation | About 200 mW |
| Minimum gain | hFE about 100 for JAN screened parts |
| Construction | |
| Package | TO-5 hermetically sealed metal can |
| Condition | |
| Condition | Vintage old stock. Never installed, never soldered |
| Testing | Sold untested. Ask and the exact piece going in the envelope is metered first |
About this part
Four separate things are stamped on this can and each one says something. JAN is the Joint Army Navy qualification, meaning the device came off a line qualified to a military specification and was screened against it. CGG is Motorola's manufacturer code within that system, which is how a stores clerk could trace a part back to the factory that built it. 2N652A is the type. 8042K is production coding, and read the usual way that points at the forty second week of 1980.
What is unusual is the combination. Germanium was effectively finished as a new design choice by 1980, so a JAN qualified germanium part from that year is a device being built to keep existing military equipment running rather than to go into anything new. That is exactly the situation somebody restoring period avionics or communications gear finds themselves in now.
Electrically it is a small signal PNP: around 45 volts, 500 milliamps of collector current, 200 milliwatts of dissipation and a minimum gain near 100 for JAN screened parts. Ordinary oxidation and some fading on the markings, which is normal for the age. Untested, because a JAN screening from 1980 describes how a part was made and not how it measures today.
Questions about this part
What do JAN and CGG mean?
JAN is Joint Army Navy: the device came off a line qualified to a United States military specification and was screened against it. CGG is Motorola's manufacturer code within that system, which is how a military stores system could trace a part back to the factory that made it.
Germanium in 1980? That seems late.
It is, and it is the interesting part. Germanium was finished as a choice for new designs long before then, so a JAN qualified germanium device from 1980 was being built to keep existing military equipment running. That is the same reason somebody wants one now.
Does JAN mean it is guaranteed good?
No. It describes how the part was manufactured and screened in 1980. It says nothing about how it measures after forty five years in a drawer, which is why this is sold untested. Ask and we will meter the exact piece, including leakage, which is the number that decides a germanium device.
How legible are the markings?
Readable, with the fading and oxidation normal for the age. All four groups quoted in the specifications can be made out in the photographs, so you can check them yourself before ordering.