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LM139J AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM139J product

LM139J

Comparators

quad comparatoropen collectorCDIP-14military temperaturepower supervision

LM139J is a 14-pin ceramic-DIP, quad differential comparator for military-temperature analog threshold and monitoring circuits. Its outputs are open collector and require external pullup resistors.

Best for

  • Military-temperature voltage threshold detection
  • Power supervision
  • Open-collector logic interfacing

Avoid if

  • Inputs must operate close to the positive supply rail
  • A push-pull output is required without an external pullup

Check before use

  • 2 V to 30 V recommended supply range
  • Input common-mode range at temperature
  • Pullup resistor, output voltage, and sink-current requirements

Key specifications

Channels
4 comparators
Recommended supply
2 V to 30 V
Temperature range
-55 C to +125 C
Output
Open-collector NPN
Package
CDIP-14

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
N/A for package type
ECCN
-
HTSUS
-

Application

Industrial threshold detectionPower supervisionLogic voltage translation

Datasheet

MAECS00006-1.pdf

800 KB

Datasheet AI

CAD Models

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3D Model
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

LM139J is a Texas Instruments quad differential comparator with four independent comparators, open-collector NPN outputs, and a 14-pin ceramic DIP package.