Vintage Stud Mount Rectifier Diode 337512 Hex Base Threaded Stud Eyelet NOS

ITEM SPECIFICS
Brand: Unbranded
MPN: 337512 (as marked)
Type: Stud-Mount Rectifier Diode (two-terminal)
Package: Metal hex-base stud with threaded mounting stud and solder-eyelet top lead
Markings: Boxed "S" logo, "7326 ✱ 337512"
Voltage / Current Ratings: Not marked; not verified
Polarity: Not marked; verify before use
Condition: New Old Stock
Quantity: 1

DESCRIPTION
New old stock vintage stud-mount rectifier diode marked with a boxed "S" logo and "7326 ✱ 337512." It has a metal hex base, a threaded mounting stud and a top lead ending in a solder eyelet. It came from a parts bin labeled "Silicon Controlled Rectifier / Diode." This piece has only two terminals (stud and eyelet), so it is a diode, not a gate-controlled SCR. The plating is clean, with light storage marks on the hex and the eyelet lead, as pictured.

Stud-mount diodes like this bolt directly to a heatsink or chassis and are used in power supplies, battery chargers, welders, motor controls and other rectifier circuits. The part number 337512 appears to be an OEM or house number. We could not match it to published manufacturer ratings, so this is best suited for exact-replacement repair where the original part number is known.

Features:
Stud-mount rectifier diode with hex base
Threaded mounting stud for heatsink or chassis mounting
Solder-eyelet top terminal
Marked "337512," exact replacement for equipment using that number
New old stock, never installed

Compatibility:
Direct replacement where the original part is marked 337512. Voltage, current and polarity are not marked on the part, so measure the diode and match its ratings to your circuit before installing. Thread size and hex dimensions are as pictured. Measure before ordering if fit is critical.

Q&A
Q: What are the voltage and current ratings?
A: They are not marked, and we could not find published data for 337512. Match it to your original part or test before use.
Q: Is this an SCR?
A: No. It has two terminals, so it is a diode. The SCR wording on its storage box is only the box's label.
Q: Which terminal is the cathode?
A: Polarity is not marked. Check with a meter's diode test before installing.
Q: Who made it?
A: It carries a boxed "S" logo. We list it as unbranded because we have not verified the maker.
Q: What does 7326 mean?
A: It is likely a date code, which would mean 1973, week 26, but the maker has not confirmed it.

DISCLAIMER
Item is new old stock, sold as pictured. Not tested. Ships fast with tracking. 30-day returns accepted; buyer pays return shipping.

LEGAL DISCLAIMER
All product names, trademarks, brands, and logos are the property of their respective owners. Products are sourced from surplus inventory and are not covered by manufacturer warranties.

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