PFRA.010.2 Polymeric PTC Resettable Fuse 60V 100mA Radial Equivalent & Substitute Parts

Part Overview

The PFRA.010.2 is a polymeric PTC resettable fuse manufactured by SCHURTER Inc., rated for 60V maximum voltage with 100mA hold current. This component is classified as Active product status and is ROHS3 compliant. The device functions as an automatic reset protection element for electronic circuits, providing overcurrent protection without requiring manual intervention after a fault condition clears. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the polymeric PTC resettable fuse category.

Key Parameters

Parameter	Value
Voltage - Max	60V
Current - Hold (Ih) (Max)	100 mA
Current - Trip (It)	200 mA
Current - Max	40 A
Time to Trip	4 s
Resistance - Initial (Ri) (Min)	2.5 Ohms
Resistance - Post Trip (R1) (Max)	7.5 Ohms
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	Radial, Disc
Lead Spacing	0.201" (5.10mm)
RoHS Status	ROHS3 Compliant
Approval Agency	cURus, TUV

Substitute Part Grouping Explanation

Substitute parts for the PFRA.010.2 are classified into two categories based on electrical parameter alignment:

Direct Equivalents match all critical electrical parameters: 60V maximum voltage, 100mA hold current, 200mA trip current, 4-second trip time, 2.5 Ohms minimum initial resistance, and 7.5 Ohms maximum post-trip resistance. These parts maintain identical functional behavior and are mechanically compatible with the same through-hole radial disc package and 5.10mm lead spacing.

Similar Parts share the same voltage rating (60V) and mounting configuration (through-hole radial disc) but differ in hold current ratings (170mA, 200mA, 250mA, 300mA, or 400mA). These parts are suitable only when circuit design permits higher current protection thresholds and can accommodate the corresponding changes in trip current, resistance characteristics, and response time.

Parameter Comparison

Part Number	Manufacturer	Voltage - Max	Current - Hold (Ih) (Max)	Current - Trip (It)	Time to Trip	Resistance - Initial (Ri) (Min)	Resistance - Post Trip (R1) (Max)	Lead Spacing	Packaging	Product Status
PFRA.010.2	SCHURTER Inc.	60V	100 mA	200 mA	4 s	2.5 Ohms	7.5 Ohms	0.201" (5.10mm)	Cut Tape (CT)	Active
PTR060V0010-TR	Eaton - Electronics Division	60V	100 mA	200 mA	4 s	2.5 Ohms	7.5 Ohms	0.197" (5.00mm)	Cut Tape (CT)	Active
RXEF010-2	Littelfuse	60V	100 mA	200 mA	4 s	2.5 Ohms	7.5 Ohms	0.199" (5.05mm)	Cut Tape (CT)	Active
60R017XPR	Littelfuse Inc.	60V	170 mA	340 mA	3 s	3.3 Ohms	8 Ohms	0.201" (5.10mm)	Cut Tape (CT)	Active
60R017XU	Littelfuse	60V	170 mA	340 mA	3 s	3.3 Ohms	8 Ohms	0.201" (5.10mm)	Bulk	Active
60R020XPR	Littelfuse Inc.	60V	200 mA	400 mA	2.2 s	1.83 Ohms	4.4 Ohms	0.201" (5.10mm)	Cut Tape (CT)	Active
60R025XPR	Littelfuse Inc.	60V	250 mA	500 mA	2.5 s	1.25 Ohms	3 Ohms	0.201" (5.10mm)	Cut Tape (CT)	Active
60R025XU	Littelfuse Inc.	60V	250 mA	500 mA	2.5 s	1.25 Ohms	3 Ohms	0.201" (5.10mm)	Bulk	Active
60R030XPR	Littelfuse Inc.	60V	300 mA	600 mA	3 s	880 mOhms	2.1 Ohms	0.201" (5.10mm)	Cut Tape (CT)	Active
60R040XPR	Littelfuse Inc.	60V	400 mA	800 mA	3.8 s	550 mOhms	1.29 Ohms	0.201" (5.10mm)	Cut Tape (CT)	Active
60R040XU	Littelfuse Inc.	60V	400 mA	800 mA	3.8 s	550 mOhms	1.29 Ohms	0.201" (5.10mm)	Bulk	Active

Engineering Selection Recommendations

Direct Equivalent Selection: PTR060V0010-TR (Eaton - Electronics Division) and RXEF010-2 (Littelfuse) are direct functional equivalents to PFRA.010.2. Both maintain identical electrical specifications across voltage, hold current, trip current, and resistance parameters. All three parts carry Active product status and ROHS3 compliance. PTR060V0010-TR and RXEF010-2 are approved by cURus and TUV certification bodies, matching the regulatory framework of the original part. Lead spacing tolerances (0.197" to 0.201") are within acceptable through-hole mounting variance for standard PCB designs.

Similar Part Selection: The 60R series from Littelfuse (60R017XPR, 60R020XPR, 60R025XPR, 60R030XPR, 60R040XPR) and their bulk packaging variants (60R017XU, 60R025XU, 60R040XU) are suitable only when circuit requirements permit higher hold current ratings. Selection of these parts requires verification that the circuit design can accommodate the corresponding increase in trip current threshold and the modified resistance and response time characteristics. All similar parts maintain 60V voltage rating, through-hole radial disc mounting, and ROHS3 compliance with Active product status.

Packaging Consideration: Cut Tape (CT) packaging is standard for component-level procurement. Bulk packaging variants are available for higher-volume applications but require different handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can PTR060V0010-TR or RXEF010-2 be used as direct replacements for PFRA.010.2?

A: Yes. Both PTR060V0010-TR and RXEF010-2 are direct equivalents with matching electrical specifications: 60V maximum voltage, 100mA hold current, 200mA trip current, 4-second trip time, and identical resistance characteristics. Lead spacing differences (0.197" to 0.201") are within standard through-hole PCB tolerance. Both parts carry equivalent regulatory approvals (cURus, TUV) and ROHS3 compliance.

Q: What is the difference between Cut Tape (CT) and Bulk packaging?

A: Cut Tape packaging provides individual component strips suitable for automated pick-and-place assembly and component-level procurement. Bulk packaging is used for high-volume manufacturing and requires different handling procedures. Electrical and mechanical specifications are identical between packaging types for the same part number.

Q: Can I use 60R020XPR (200mA hold current) instead of PFRA.010.2 (100mA hold current)?

A: Substitution requires circuit design verification. The 60R020XPR will not trip until 400mA is reached, compared to 200mA for PFRA.010.2. This doubles the protection threshold and alters response time (2.2 seconds versus 4 seconds). Use only if the circuit design explicitly permits this higher current protection level.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. PFRA.010.2, PTR060V0010-TR, RXEF010-2, and all 60R series parts listed are ROHS3 compliant. All parts carry Active product status.

Q: What certifications apply to these parts?

A: PFRA.010.2, PTR060V0010-TR, and RXEF010-2 carry cURus and TUV approvals. The 60R series parts carry cURus and TUV approvals. RXEF010-2 additionally carries CSA and UL certifications. Verify specific certification requirements for your application before final part selection.

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