Keystone Electronics transistor socket, order code 4591, 4 positions (round), TO-5 type, closed frame, tin-plated brass contacts, chassis mount, solder termination, bulk package.
Keystone 4591 TO-5 Transistor Socket, 4 Pos, Tin
MPN4591
Active
Keystone Electronics transistor socket, order code 4591, 4 positions (round), TO-5 type, closed frame, tin-plated brass contacts, chassis mount, solder termination, bulk package.
$2.6800Ref. price · indicative, final on quote
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Transistor, TO-5 |
| Mounting | Chassis Mount |
| Housing material | Polyester, Glass Filled |
| Contact material - post | Brass |
| Contact material - mating | Brass |
| Material flammability rating | UL94 V-0 |
| Package | Bulk |
| Features | Closed Frame |
| Termination | Solder |
| Contact finish - post | Tin |
| Contact finish - mating | Tin |
| Number of positions or pins | 4 (Round) |