Product Overview
Coto U-6P Reed Relay Coil Element - 2-Pin Radial Epoxy Body, Date Code 7929
Condition
Unused NOS. White epoxy-encapsulated radial body with markings legible: U-6P and COTO(N)7929. Two straight tinned wire leads, no damage, no corrosion. Sourced from an electronics distributor consolidating inventory.
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Product Overview
Coto Technology U-6P - a high-reliability precision reed relay or inductor element in a custom-molded white epoxy radial package with a 2-pin configuration. Coto Technology, founded in 1917 as Coto Coil Incorporated, built its reputation on small signal switching components: reed relays, molded reed switches, and specialty coil designs. The U-6P carries date code 7929, placing manufacture in the 29th week of 1979. Markings COTO(N)7929 and U-6P are stamped clearly on the encapsulated body.
Key Features
- High-reliability precision reed relay or inductor element
- 2-pin radial configuration in custom-molded epoxy body
- Manufacturer: Coto Technology (est. 1917 as Coto Coil Incorporated)
- Date code 7929 - 29th week of 1979 production run
- Markings legible: U-6P and COTO(N)7929 stamped on white epoxy casing
- Approximately 15mm body length with straight tinned wire leads
Applications
- Replacing a failed reed relay element in vintage test equipment - oscilloscopes, signal generators, bench meters - where the original Coto part number is called out on the schematic or BOM
- Restoring a ham radio transceiver or receiver subassembly that used Coto coil elements in its switching or filtering stages
- Engineering bench: drop-in replacement during a repair when the footprint and pinout of the original U-6P must be preserved exactly
- Makers and hobbyist experimenters building or repairing small-signal switching circuits who want a vintage hermetic-style reed element rather than a modern substitute
- Legacy OEM spares inventory: procurement engineers sourcing original Coto components for long-lifecycle industrial or instrumentation systems still in the field
Frequently Asked Questions
What electrical specs should I confirm before ordering?
Coil voltage, contact form, switching current, and inductance value are not confirmed for the U-6P from available sources. Buyers should verify their circuit's requirements against the original schematic or a U-6P datasheet before ordering. The 2-pin configuration suggests a basic coil or SPST reed switch element.
Is a datasheet available for the U-6P?
A specific datasheet for the U-6P was not located in research. Coto Technology technical resources cover their reed relay families broadly; contacting Coto Technology directly or checking legacy distributor archives is the most reliable path to original specifications.
What does the date code 7929 indicate?
The date code 7929 is stamped on the body and indicates the 29th week of 1979 - a confirmed manufacturing date for this specific unit.
Is anything else included with this part?
The U-6P component only. No documentation, no additional hardware.
A reed relay element from 1979 that has never seen a circuit - still waiting for the job it was made to do. Yours to finish the repair, restore the instrument, or simply put the right part back where it belongs.
