MF-RHT750-AP Equivalent & Substitute Parts

Part Overview

The MF-RHT750-AP is a polymeric PTC resettable fuse manufactured by Bourns Inc. in the Multifuse® MF-RHT series. This through-hole radial disc component provides overcurrent protection at 16V with a 7.5A hold current rating. The part is active in production with AEC-Q200 compliance and ROHS3 certification. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

MF-RHT750-AP

Bourns Inc.In Stock: 1007MF-RHT750-AP Datasheet

Current PartRFQ

RGEF900-1

LittelfuseIn Stock: 841RGEF900-1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-RHT750-AP is determined by the following critical parameters:

• Voltage rating must equal or exceed 16V maximum
• Current hold (Ih) rating must support the 7.5A specification
• Mounting type must be through-hole radial configuration
• Package form factor must be radial disc
• Polymeric PTC resettable fuse technology type
• RoHS3 compliance status

The RGEF900-1 manufactured by Littelfuse qualifies as a substitute based on matching voltage (16V), exceeding the hold current requirement (9A vs 7.5A), maintaining through-hole radial mounting, and confirming radial disc package compatibility. Both parts operate within polymeric PTC technology and maintain ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the MF-RHT750-AP and RGEF900-1 maintain active product status with current manufacturing availability. The MF-RHT750-AP carries AEC-Q200 automotive qualification. The RGEF900-1 holds CSA, TUV, and UL approvals. Selection between these parts depends on application-specific requirements regarding operating temperature range and response time characteristics. The MF-RHT750-AP supports extended temperature operation to 125°C, while the RGEF900-1 operates to 85°C maximum. The RGEF900-1 exhibits faster trip response (5.5s vs 7s) and lower initial resistance (4.7 mOhms vs 9.4 mOhms).

Frequently Asked Questions (FAQ)

Q: Can RGEF900-1 directly replace MF-RHT750-AP in all applications?

A: Direct replacement is valid when the application does not require the extended temperature range of -40°C to 125°C. The RGEF900-1 operates to 85°C maximum. Both parts share identical 16V voltage rating, through-hole radial mounting, and radial disc package form factor.

Q: What are the key differences between these substitute parts?

A: The RGEF900-1 provides higher hold current (9A vs 7.5A), faster trip time (5.5s vs 7s), and lower initial resistance (4.7 mOhms vs 9.4 mOhms). The MF-RHT750-AP supports higher maximum operating temperature (125°C vs 85°C) and carries AEC-Q200 automotive certification.

Q: Are there packaging differences between MF-RHT750-AP and RGEF900-1?

A: The MF-RHT750-AP is supplied in Tape & Box packaging. The RGEF900-1 is supplied in Bag packaging. Both maintain radial disc form factor with through-hole mounting. Physical dimensions differ slightly: MF-RHT750-AP measures 14.00mm L x 3.00mm W with 2.90mm lead spacing; RGEF900-1 measures 14.60mm L x 2.50mm W with 5.05mm lead spacing.

Q: Do both parts meet RoHS compliance requirements?

A: Both the MF-RHT750-AP and RGEF900-1 are ROHS3 compliant. The MF-RHT750-AP carries Moisture Sensitivity Level 1 (Unlimited). The RGEF900-1 is Not Applicable for MSL classification.