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MF-RX020/72-2-17
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Product Detailed Parameters
- Description：PTC RESETTABLE 0.2A 72V RADIAL L
- Series：Multifuse®, MF-RX/72
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR)
- Type：Polymeric
- Voltage - Max：72V
- Current - Hold (Ih) (Max)：200 mA
- Current - Trip (It)：400 mA
- Current - Max：40 A
- Time to Trip：2.2 s
- Resistance - Initial (Ri) (Min)：1.5 Ohms
- Resistance - Post Trip (R1) (Max)：4.4 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)：0.500" (12.70mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RX020/72-2-17 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse from the Multifuse MF-RX series. It provides overcurrent protection with a hold current of 200 mA and a trip current of 400 mA. The device supports a maximum voltage of 72 V DC and withstands a maximum fault current of 40 A. It operates within a temperature range of -40°C to +85°C and is supplied in tape and reel packaging for automated assembly.
Feature Summary
- Provides automatic circuit recovery after fault clearance without manual replacement
- Offers dual protection against overcurrent conditions and excessive heat generation
- Features a compact radial leaded package suitable for PCB mounting
Applications
- Overcurrent protection in portable electronic devices
- Surge protection for telecommunications equipment
- Circuit safeguarding in industrial control systems
Procurement Notes
Verify component authenticity through authorized Bourns distributors or certified supply chain partners. Confirm RoHS compliance status via the official datasheet before integration. Ensure storage conditions maintain moisture sensitivity levels as specified. Validate that the specific reel quantity matches production requirements to avoid inventory discrepancies during manufacturing.
Selection Notes
Select this component when applications require a low-profile, cost-effective solution for moderate current protection. The 200 mA hold current suits sensitive circuits needing precise overload cutoff. Verify that the 72 V rating aligns with system operating voltages. Consider the radial leaded form factor for through-hole assembly processes where surface-mount alternatives are unsuitable.
Part Context
This part belongs to the Bourns Multifuse MF-RX series, designed for general-purpose circuit protection. The series offers various current ratings and voltage options to accommodate diverse electronic designs. As a PPTC device, it utilizes polymer technology to provide reliable, reusable protection against electrical faults in consumer and industrial electronics.
Replacement Considerations
Consult the official Bourns replacement guide for direct equivalents. Verify that substitute parts match the 200 mA hold current, 72 V max voltage, and radial leaded configuration. Ensure thermal characteristics and physical dimensions remain compatible with existing PCB layouts.
