ChipApex | Global Electronic Components Supplier
MF-RX375-AP-99
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：PTC RESET FUSE 60V 3.75A RADIAL
- Series：Multifuse®, MF-RX
- Mfr：Bourns Inc.
- Package：Tape & Box (TB)
- Type：Polymeric
- Voltage - Max：60V
- Current - Hold (Ih) (Max)：3.75 A
- Current - Trip (It)：7.5 A
- Current - Max：40 A
- Time to Trip：24 s
- Resistance - Initial (Ri) (Min)：30 mOhms
- Resistance - Post Trip (R1) (Max)：80 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：1.118" Dia x 0.122" T (28.40mm x 3.10mm)
- Height - Seated (Max)：1.319" (33.50mm)
- Thickness (Max)：-
- Lead Spacing：0.402" (10.20mm)
Download product information
Overview
The Bourns MF-RX375-AP-99 is a radial leaded resettable fuse from the MF-RX/72 series, designed for overcurrent protection in electronic circuits. It features a hold current of 3.75 A and a trip current of 7.5 A, with a maximum voltage rating of 72 V. The device exhibits a typical trip time of 24 seconds under specified conditions. Electrical characteristics include a minimum resistance of 0.03 Ω and a maximum resistance of 80 mΩ. The component supports a maximum power dissipation of 3.2 W and operates within a temperature range of -40°C to 85°C. Physical dimensions are approximately 23.51 mm in length and 29.51 mm in height, with 0.81 mm diameter leads.
Feature Summary
- Provides automatic circuit recovery after fault clearance without manual replacement
- Offers robust protection against overcurrent and thermal hazards in sensitive electronics
- Complies with UL safety standards and RoHS environmental directives
Applications
- Consumer electronics circuit protection
- Industrial instrumentation overcurrent safeguarding
- Telecommunications equipment surge defense
Procurement Notes
Verify the specific suffix 'AP-99' against official Bourns documentation to confirm packaging configuration and compliance status. Ensure that the selected variant matches the required hold and trip currents for the target application. Cross-reference the part number with authorized distributors to confirm availability and authenticity. Validate that the component meets all necessary regulatory certifications for the intended market.
Selection Notes
Select this component based on the required 3.75 A hold current and 72 V maximum voltage rating. Consider the 24-second trip time characteristic for applications requiring delayed response to transient surges. Evaluate the physical footprint and radial lead configuration for PCB layout compatibility. Ensure the operating temperature range aligns with the environmental conditions of the end-use product.
Part Context
This part belongs to the Bourns MF-RX/72 series of resettable fuses, which are polymeric positive temperature coefficient (PPTC) devices. The series is engineered for high-reliability protection in various electronic systems. The MF-RX line provides a cost-effective alternative to traditional fuses by offering reusable overcurrent protection capabilities.
Replacement Considerations
Consult official Bourns substitution guides for direct replacements. Verify that any substitute part matches the electrical ratings and physical dimensions. Ensure compatibility with existing PCB mounting requirements and regulatory approvals.
