AGRF700-2 Polymeric PTC Resettable Fuse Equivalent & Substitute Parts

Part Overview

The AGRF700-2 is a polymeric PTC resettable fuse manufactured by Littelfuse, rated for 16V maximum voltage and 7A hold current. This component is designed for overcurrent protection in electronic circuits, automatically resetting after a fault condition is cleared. The part is currently active in production with 2169 units in stock. 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

AGRF700-2

LittelfuseIn Stock: 2199AGRF700-2 Datasheet

Current PartRFQ

16R700GMR

Littelfuse Inc.In Stock: 159916R700GMR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for polymeric PTC resettable fuses is determined by the following critical parameters:

• Voltage Rating: Maximum voltage must equal or exceed the application requirement (16V)
• Current - Hold (Ih): Must match or exceed the specified hold current (7A maximum)
• Mounting Type: Must be Through Hole to maintain PCB compatibility
• Package / Case: Must be Radial, Disc configuration for mechanical fit
• Operating Temperature Range: Must encompass the application operating window (-40°C to 85°C)
• Compliance Standards: RoHS3 compliance required for regulatory alignment

The substitute part 16R700GMR meets all these criteria, maintaining identical voltage, current hold, mounting type, package configuration, and temperature range specifications.

Parameter Comparison

Engineering Selection Recommendations

Both AGRF700-2 and 16R700GMR are active production components with ROHS3 compliance. The 16R700GMR substitute maintains identical electrical ratings for voltage and hold current, with marginally faster trip response (4.6s vs 4s) and slightly higher initial resistance (7.7 mOhms vs 6.6 mOhms). Mechanical compatibility is confirmed through matching package type, lead spacing tolerance, and radial disc configuration. The 16R700GMR includes cURus and TUV certifications, providing additional approval agency coverage. Selection between these parts should be based on application-specific requirements for trip time response and initial resistance characteristics, as well as certification requirements for the target application.

Frequently Asked Questions (FAQ)

Q: Can 16R700GMR be used as a direct replacement for AGRF700-2?

A: Yes, 16R700GMR qualifies as a substitute based on matching voltage rating (16V), hold current (7A), mounting type (Through Hole), package configuration (Radial, Disc), and operating temperature range (-40°C to 85°C). Both components are ROHS3 compliant and active in production.

Q: What are the differences in trip characteristics between these parts?

A: The 16R700GMR has a faster time to trip (4.6s vs 4s) and slightly higher initial resistance (7.7 mOhms vs 6.6 mOhms). The trip current threshold is also lower (11.9A vs 13.2A). These differences may affect circuit protection timing and should be evaluated against application requirements.

Q: Are there mechanical compatibility concerns?

A: Both parts use identical footprint dimensions (0.441" L x 0.118" W) and lead spacing within tolerance (0.199" vs 0.201"). The 16R700GMR seated height is 0.776" compared to 0.827" for the AGRF700-2, which may affect clearance in space-constrained applications.

Q: What certifications does each part carry?

A: AGRF700-2 carries AEC-Q200 rating. 16R700GMR carries cURus and TUV certifications. Both are ROHS3 compliant and REACH unaffected. Application requirements should determine which certification set is necessary.

Q: Can these parts be used interchangeably in existing designs?

A: Interchangeability depends on application sensitivity to trip time, initial resistance, and certification requirements. PCB layout compatibility is confirmed through matching package and lead spacing specifications.