RGEF600K Equivalent & Substitute Parts

Part Overview

The RGEF600K is a Polymeric PTC Resettable Fuse manufactured by Littelfuse Inc., rated for 16V maximum voltage and 6A hold current. This component is designed for overcurrent protection in electronic circuits through automatic thermal reset capability. The part is currently Active in product status and widely stocked (1027 Pcs available). Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across manufacturing batches and supply chain variations.

Substiute Parts

RGEF600K

Littelfuse Inc.In Stock: 1134RGEF600K Datasheet

Current PartRFQ

RGEF600

Littelfuse Inc.In Stock: 10671RGEF600 Datasheet

DirectRFQ

RGEF600-1

LittelfuseIn Stock: 1630RGEF600-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RGEF600K is determined by strict equivalence across the following critical parameters:

• Voltage rating: 16V maximum
• Current hold rating: 6A
• Current trip rating: 10.2A
• Polymeric PTC type classification
• Through Hole Radial, Disc mounting and package configuration
• Lead spacing: 0.199" (5.05mm)
• Regulatory compliance: CSA, TUV, UL approvals
• RoHS3 compliance status

All identified substitute parts maintain identical electrical performance characteristics and regulatory certifications. Physical dimensions may vary within the radial disc package envelope while maintaining functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RGEF600K, RGEF600, and RGEF600-1—are Active products with identical electrical specifications and regulatory certifications (CSA, TUV, UL). Selection between these equivalents should be based on:

• Inventory availability and supply chain requirements
• Procurement lead times and cost considerations
• Manufacturing batch traceability requirements
• Physical dimension tolerance requirements within the radial disc package envelope

All parts maintain ROHS3 compliance and are suitable for direct substitution in applications requiring 16V, 6A hold current polymeric PTC resettable fuse protection.

Frequently Asked Questions (FAQ)

Q: Can RGEF600 and RGEF600-1 be used interchangeably with RGEF600K?

A: Yes. All three parts share identical electrical ratings (16V, 6A hold current, 10.2A trip current), polymeric PTC type, through-hole radial disc package configuration, lead spacing (0.199"), and regulatory approvals (CSA, TUV, UL). They are direct functional equivalents.

Q: Are there physical dimension differences between these parts?

A: Minor variations exist within the radial disc package envelope. RGEF600K measures 0.421" L x 0.098" W with 0.709" seated height. RGEF600 and RGEF600-1 measure 0.402" L x 0.098" W with 0.673" seated height. These differences remain within the radial disc package specification and do not affect electrical performance or PCB compatibility.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. RGEF600K, RGEF600, and RGEF600-1 all carry CSA, TUV, and UL approvals and are ROHS3 compliant. Regulatory compliance is identical across all three parts.

Q: Which part should I select based on availability?

A: RGEF600 offers the highest inventory (10580 Pcs), followed by RGEF600-1 (1612 Pcs) and RGEF600K (1027 Pcs). Selection should align with procurement timelines and supply chain strategy.

Q: Are there any thermal or resistance performance differences?

A: No. Initial resistance (Ri Min: 10 mOhms), post-trip resistance (R1 Max: 28 mOhms), time to trip (3.3 s), and operating temperature range (-40°C ~ 85°C) are identical across all three parts.