PFRA.160.2 Polymeric PTC Resettable Fuse 30V 1.6A Radial

Part Overview

The PFRA.160.2 is a polymeric PTC resettable fuse manufactured by SCHURTER Inc., designed for 30V applications with a 1.6A hold current rating. This through-hole radial disc component provides automatic overcurrent protection with automatic recovery after fault clearance. The part is active in production with 954 units in current inventory stock.

Equivalent and substitute parts are identified to support design flexibility, procurement alternatives, and supply chain continuity. Substitutes are qualified based on matching electrical parameters, mechanical compatibility, and regulatory compliance within the polymeric PTC resettable fuse category.

Substiute Parts

PFRA.160.2

SCHURTER Inc.In Stock: 1060PFRA.160.2 Datasheet

Current PartRFQ

30R110UPR

Littelfuse Inc.In Stock: 320930R110UPR Datasheet

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30R110UU

Littelfuse Inc.In Stock: 217830R110UU Datasheet

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30R135UPR

Littelfuse Inc.In Stock: 396830R135UPR Datasheet

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30R135UU

Littelfuse Inc.In Stock: 122330R135UU Datasheet

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30R160UPR

Littelfuse Inc.In Stock: 1238430R160UPR Datasheet

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30R185UPR

Littelfuse Inc.In Stock: 626130R185UPR Datasheet

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MF-R160-2

Bourns Inc.In Stock: 8713MF-R160-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PFRA.160.2 are classified into two categories based on substitution criteria:

Parametric Equivalent (Direct Substitution): Parts that match all critical electrical and mechanical parameters of the main part. These parts have identical voltage rating (30V), hold current (1.6A), trip current (3.2A), time to trip (8s), and physical dimensions. Parametric equivalents are interchangeable without circuit redesign.

Similar Electrical Characteristics (Application-Dependent Substitution): Parts that share the same voltage rating (30V) and mounting type (through-hole radial disc) but differ in hold current rating. These parts are suitable for applications where the circuit can tolerate different current thresholds. Substitution requires verification that the alternative hold current rating meets circuit protection requirements.

Key Parameters Determining Substitution Eligibility:

• Voltage rating: 30V (mandatory match)
• Mounting type: Through hole radial disc (mandatory match)
• Lead spacing: 0.201" (5.10mm) (mandatory match)
• Package type: Radial, Disc (mandatory match)
• Hold current (Ih): 1.6A for direct equivalents; alternative ratings for application-dependent substitutes
• Approval agencies: cURus and TUV certification required

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalent - Direct Substitution:

MF-R160-2 (Bourns Inc.) is a parametric equivalent to PFRA.160.2. Both parts share identical electrical specifications (30V, 1.6A hold current, 3.2A trip current, 8s time to trip), identical physical dimensions (0.402" diameter x 0.118" thickness), and identical resistance characteristics (55 mOhms initial, 150 mOhms post-trip maximum). Both parts carry cURus and TUV approvals and are ROHS3 compliant. This part is suitable for direct substitution without circuit modification. Current inventory: 8,648 units.

Similar Electrical Characteristics - Application-Dependent Substitution:

30R160UPR (Littelfuse Inc., POLY-FUSE® series) matches the PFRA.160.2 in voltage (30V), hold current (1.6A), trip current (3.2A), and time to trip (8s). Physical dimensions differ slightly (0.350" length vs. 0.402" diameter), and initial resistance is lower (30 mOhms vs. 55 mOhms). This part is suitable for substitution where PCB layout accommodates the different form factor. Current inventory: 12,300 units.

30R135UPR (Littelfuse Inc., POLY-FUSE® series) provides 1.35A hold current with 2.7A trip current and 7.3s time to trip. This part is suitable for applications requiring lower current protection thresholds. Current inventory: 3,880 units.

30R110UPR (Littelfuse Inc., POLY-FUSE® series) provides 1.1A hold current with 2.2A trip current and 6.6s time to trip. This part is suitable for applications requiring the lowest current protection threshold among available substitutes. Current inventory: 3,111 units.

30R185UPR (Littelfuse Inc., POLY-FUSE® series) provides 1.85A hold current with 3.7A trip current and 8.7s time to trip. This part is suitable for applications requiring higher current protection thresholds. Current inventory: 6,167 units.

All substitute parts carry cURus and TUV approvals and are ROHS3 compliant. All parts are active in production status.

Frequently Asked Questions (FAQ)

Q: Can MF-R160-2 replace PFRA.160.2 without any circuit changes?

A: Yes. MF-R160-2 is a parametric equivalent with identical electrical and mechanical specifications. No circuit redesign is required.

Q: What is the difference between the PFRA.160.2 and 30R160UPR?

A: Both parts have identical electrical ratings (30V, 1.6A hold current, 3.2A trip current, 8s time to trip). The primary difference is physical form factor: PFRA.160.2 is 0.402" diameter, while 30R160UPR is 0.350" length. Initial resistance also differs (55 mOhms vs. 30 mOhms). Substitution is possible if PCB layout accommodates the different dimensions.

Q: Can I use 30R135UPR or 30R110UPR as substitutes?

A: These parts have lower hold current ratings (1.35A and 1.1A respectively) compared to PFRA.160.2 (1.6A). They are suitable only if your circuit can tolerate the lower current threshold. Verify that normal operating current does not exceed the hold current rating of the substitute part.

Q: What packaging options are available for these parts?

A: PFRA.160.2 is supplied in Cut Tape (CT) packaging. Littelfuse 30R series parts are available in both Cut Tape (CT) and Bulk packaging options. MF-R160-2 is supplied in Cut Tape (CT) packaging.

Q: Are all substitute parts RoHS compliant?

A: Yes. PFRA.160.2, MF-R160-2, and all Littelfuse 30R series substitutes are ROHS3 compliant.

Q: What regulatory approvals do these parts carry?

A: All parts listed carry cURus and TUV approvals. All parts are ROHS3 compliant and REACH unaffected.

Q: What is the lead spacing for all these parts?

A: All parts have 0.201" (5.10mm) lead spacing, ensuring compatibility with standard through-hole PCB layouts.

Q: Can I use 30R185UPR for higher current applications?

A: 30R185UPR has a 1.85A hold current rating compared to PFRA.160.2 at 1.6A. This part is suitable only if your circuit requires higher current protection threshold. Verify that the 1.85A hold current and 3.7A trip current meet your application requirements.