2N493: 450mW Unijuction Transistor

Overview

Product Description

This Unijuction Transistor is packaged in TO-5 package, which has a power rating of 450mW.

Available as High Reliability device per MIL-PRF-19500 indicate –HR suffix after the part number. Contact for -HR flow. Add "PBF" suffix for Pb-free lead finish.

Applications:

Unijunction Transistors are used in thyristor-triggering, oscillator, pulse and timing circuits.

Technical Documentation

Availability:

Part Number Descriptive Datasheet HR Flow
Power Rating
PD
mW
Package
Inventory
Distributor On-
hand
Pricing Last
Update
2N493
Unijuction Transistor download download 450 TO-5 Digitron 2000 RFQ 6/12/2018 1:34:44 PM
2N493A
Unijuction Transistor download download 450 TO-5 Digitron 1642 RFQ 6/12/2018 1:34:45 PM
2N493B
Unijuction Transistor download download 450 TO-5 Digitron 1679 RFQ 6/12/2018 1:34:46 PM
2N493-HR
Unijuction Transistor download download 450 TO-5 Digitron 0 RFQ 6/12/2018 11:22:30 AM
2N493A-HR
Unijuction Transistor download download 450 TO-5 Digitron 0 RFQ 6/12/2018 11:22:27 AM
2N493B-HR
Unijuction Transistor download download 450 TO-5 Digitron 0 RFQ 6/12/2018 11:22:29 AM
Specifications
Part
Number
Descriptive Datasheet HR Flow
Power Rating
PD
mW
Intrinsic Standoff Ratio Max
η
 
Intrinsic Standoff Ratio Min
η
 
Interbase Resistance Min
rBB
KOHMS
Interbase Resistance Max
rBB
KOHMS
Min Valley Point Current
IV
mA
Package
2N493
Unijuction Transistor download download 450 0.75 0.62 4.7 6.8 8 TO-5
2N493A
Unijuction Transistor download download 450 0.75 0.62 4.7 6.8 8 TO-5
2N493B
Unijuction Transistor download download 450 0.75 0.62 4.7 6.8 8 TO-5
2N493-HR
Unijuction Transistor download download 450 0.75 0.62 4.7 6.8 8 TO-5
2N493A-HR
Unijuction Transistor download download 450 0.75 0.62 4.7 6.8 8 TO-5
2N493B-HR
Unijuction Transistor download download 450 0.75 0.62 4.7 6.8 8 TO-5