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AIRPAX / SENSATA M3901901203 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/01-203 is a low-power, sealed, trip-free, one-pole magnetic circuit breaker conforming to MIL-PRF-39019. It is designed to provide overcurrent protection in a variety of electronic systems and equipment. The circuit breaker offers a compact size and reliable performance, making it suitable for military, aerospace, and industrial applications. It is characterized by its quick-acting trip mechanism and robust construction, ensuring effective protection against short circuits and overloads. The part number includes a dash number that corresponds to specific electrical characteristics such as current rating, time delay, and resistance or impedance.

Authorized Distributors
Source:DigiKey
Part No:M39019/01-203
Stock:0
Inv Date:06-12-2026
Price: Unit price: $850.623
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Part No:M39019/01-203
Stock:0
Inv Date:06-13-2026
Price: Unit price: $850.62
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Part No:M39019/01-203
Stock:0
Inv Date:06-12-2026
Price: Unit price: $955.69
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Part No:M39019/01-203
Stock:3
Inv Date:06-12-2026
Price: Unit price: $655.36
Buy/RFQ:
Part No:M39019/01-203
Stock:3
Inv Date:06-12-2026
Price: Unit price: $655.36
Buy/RFQ:

AIRPAX / SENSATA M3901901203 Magnetic Circuit Breaker Specifications:

  • voltage_and_frequency_rating: 50 V dc, maximum and 240 V ac, maximum at 60 Hz and 400 Hz
  • high_inrush: 800 percent at 60 Hz and dc, 1,400 percent at 400 Hz
  • current_rating: See table I
  • time_delay: See table I
  • resistance_or_impedance: See table I
  • weight: Approximately 50 grams
  • mounting_hardware: See figure 1
  • terminals: See figure 1
  • pin: The PIN shall be M39019/01-(dash number taken from table I)
  • tolerance: ±.031 (0.79 mm)
  • effective_bushing_thread_length: .280 (7.11 mm) minimum

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901901203?

You can click on the BUY or RFQ button to purchase M3901901203 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901901203?

You can download the M3901901203 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901901203?

AIRPAX / SENSATA

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