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Product Detailed Parameters
- Description:PTC RESETTABLE 0.4A 72V RADIAL L
- Series:Multifuse®, MF-RX/72
- Mfr:Bourns Inc.
- Package:Tape & Reel (TR)
- Type:Polymeric
- Voltage - Max:72V
- Current - Hold (Ih) (Max):400 mA
- Current - Trip (It):800 mA
- Current - Max:40 A
- Time to Trip:3.9 s
- Resistance - Initial (Ri) (Min):520 mOhms
- Resistance - Post Trip (R1) (Max):1.29 Ohms
- Operating Temperature:-40°C ~ 85°C
- Grade:Automotive
- Qualification:AEC-Q200
- Ratings:-
- Mounting Type:Through Hole
- Package / Case:Radial, Disc
- Size / Dimension:0.291" Dia x 0.122" T (7.40mm x 3.10mm)
- Height - Seated (Max):0.539" (13.70mm)
- Thickness (Max):-
- Lead Spacing:0.201" (5.10mm)
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Overview
The Bourns MF-RX040/72-2-17 is a radial leaded PPTC resettable fuse from the MF-RX series. It features a holding current of 400 mA and a maximum voltage rating of 72 VDC. The device supports a maximum trip current of 40 A and operates within a temperature range of -40°C to +85°C. Packaged in a reel, it is designed for PCB mount applications requiring overcurrent protection.
Feature Summary
- Provides automatic circuit recovery after fault conditions clear
- Offers robust overcurrent protection in compact radial leaded form factor
- Maintains stable performance across wide operating temperature ranges
Applications
- Telecommunications equipment
- Portable electronics
- Industrial control systems
Procurement Notes
Verify component authenticity through authorized Bourns distributors or certified suppliers. Confirm RoHS compliance status and specific reel packaging details prior to order placement. Ensure technical specifications align with design requirements for voltage and current ratings.
Selection Notes
Select this component when radial leaded mounting is required for space-constrained PCB layouts. Consider the 400 mA holding current and 72 VDC rating for appropriate circuit protection levels. Evaluate thermal management needs given the -40°C to +85°C operational range.
Part Context
Part of the Multifuse MF-RX series, designed for high-reliability overcurrent protection. The radial leaded configuration facilitates through-hole mounting on printed circuit boards. This series targets applications demanding cost-effective and reusable circuit protection solutions.
Replacement Considerations
Consult official Bourns documentation for verified substitute part numbers within the MF-RX series. Ensure replacement components match electrical ratings and physical dimensions for direct interchangeability.
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