GSAP 100-R Equivalent & Substitute Parts

Part Overview

The GSAP 100-R is a 100 mA, 250 V AC/DC ceramic cartridge fuse manufactured by Bel Fuse Inc. in the 3AB, 3AG form factor with slow-blow response characteristics. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and component procurement. The part is designed for through-hole mounting applications requiring ceramic fuse protection in the specified current and voltage range.

Substiute Parts

GSAP 100-R

Bel Fuse Inc.In Stock: 1146GSAP 100-R Datasheet

Current PartRFQ

0325.100MXP

Littelfuse Inc.In Stock: 10920325.100MXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GSAP 100-R with the 0325.100MXP is based on matching the following critical electrical and mechanical parameters:

• Current Rating: Both parts rated at 100 mA
• Voltage Rating (AC): Both rated at 250 V
• Fuse Type: Both are ceramic cartridge fuses
• Response Time: Both exhibit slow-blow characteristics
• Package / Case: Both use 3AB, 3AG form factor with 1/4" x 1-1/4" (Axial) dimensions
• Mounting Type: Both are through-hole mounted
• Operating Temperature Range: Both operate across -55°C ~ 125°C
• RoHS Compliance: Both are ROHS3 compliant
• REACH Status: Both are REACH unaffected

The 0325.100MXP maintains dimensional compatibility and electrical performance within the specified parameters, enabling direct substitution in applications requiring the GSAP 100-R.

Parameter Comparison

Engineering Selection Recommendations

The 0325.100MXP from Littelfuse Inc. is the qualified substitute for the obsolete GSAP 100-R. Both components meet the same electrical specifications (100 mA, 250 V AC/DC) and physical form factor requirements. The 0325.100MXP is currently in active production status, ensuring long-term availability and supply chain continuity.

The 0325.100MXP carries CE approval certification. The GSAP 100-R includes additional certifications (CSA, cULus). Applications requiring CSA or cULus certification should verify that the 0325.100MXP meets specific regulatory requirements for the end application.

Dimensional tolerances between the two parts are minimal (diameter difference of 0.003", length difference of 0.008"), ensuring mechanical compatibility in standard through-hole fuse holders. The 0325.100MXP demonstrates higher breaking capacity (100A versus 35A) and lower melting I²t (0.087 versus 0.209), indicating faster response characteristics under fault conditions while maintaining the specified slow-blow classification.

Frequently Asked Questions (FAQ)

Q: Can the 0325.100MXP directly replace the GSAP 100-R in existing designs?

A: Yes, the 0325.100MXP is mechanically and electrically compatible with the GSAP 100-R for applications requiring 100 mA, 250 V AC/DC protection in the 3AB, 3AG form factor. Both components are rated for the same current, voltage, and operating temperature range.

Q: What are the dimensional differences between these two fuses?

A: The 0325.100MXP has a diameter of 0.275" (6.99mm) compared to the GSAP 100-R at 0.272" (6.90mm), and a length of 1.288" (32.72mm) compared to 1.280" (32.50mm). These differences are within standard tolerance ranges for 3AB, 3AG form factor fuses and do not affect compatibility with standard fuse holders.

Q: Are there differences in response characteristics between these parts?

A: Both parts are classified as slow-blow fuses. However, the 0325.100MXP exhibits a lower melting I²t value (0.087 versus 0.209), indicating a faster response under sustained overcurrent conditions while maintaining the slow-blow classification for transient surge protection.

Q: What certifications does the 0325.100MXP carry?

A: The 0325.100MXP carries CE certification. The GSAP 100-R includes CE, CSA, and cULus certifications. Applications requiring CSA or cULus compliance should confirm that the 0325.100MXP meets the specific regulatory requirements of the end application.

Q: Is the 0325.100MXP currently available?

A: Yes, the 0325.100MXP is in active production status with current inventory availability, unlike the GSAP 100-R which is obsolete.