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AIRPAX / SENSATA M3901902221 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/02-221 is a critical component in military and aerospace applications, providing reliable overcurrent protection. This low-power, sealed, trip-free magnetic circuit breaker is designed to interrupt circuits under fault conditions, preventing damage to sensitive equipment. It incorporates auxiliary contacts for enhanced monitoring and control capabilities. The robust construction and adherence to MIL-PRF-39019 standards ensure consistent performance in demanding environments. Its compact size and versatile mounting options make it suitable for a wide range of electronic systems.

Authorized Distributors
Source:Newark
Part No:M39019/02-221
Stock:34
Inv Date:06-09-2026
Price: Unit price: $1056.83
Buy/RFQ:
Source:DigiKey
Part No:M39019/02-221
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1001.32
Buy/RFQ:
Part No:M39019/02-221
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1001.32
Buy/RFQ:
Part No:M39019/02-221
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1026.05
Buy/RFQ:
Part No:M39019/02-221
Stock:5
Inv Date:06-09-2026
Price: Unit price: $937.37
Buy/RFQ:
Part No:M39019/02-221
Stock:5
Inv Date:06-09-2026
Price: Unit price: $937.37
Buy/RFQ:

AIRPAX / SENSATA M3901902221 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
  • pin: M39019/02-(dash number taken from table I)
  • tolerance: ±.031 (0.79 mm)
  • auxiliary_contact_terminals_wire_size: Accommodates two number 20 AWG wires
  • effective_bushing_thread_length: 0.280 (7.11 mm) minimum

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901902221?

You can click on the BUY or RFQ button to purchase M3901902221 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901902221?

You can download the M3901902221 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901902221?

AIRPAX / SENSATA

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