RLD60P030XFF Equivalent & Substitute Parts

Part Overview

The RLD60P030XFF is a polymeric PTC resettable fuse manufactured by Littelfuse Inc., part of the POLY-FUSE® RLD60 series. This component is rated for 60V maximum voltage with a 300 mA hold current and is designed for through-hole radial mounting in disc configuration. The product status is obsolete, making identification of equivalent and substitute parts essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Voltage - Max	60V
Current - Hold (Ih) (Max)	300 mA
Current - Trip (It)	600 mA
Resistance - Initial (Ri) (Min)	880 mOhms
Resistance - Post Trip (R1) (Max)	2.1 Ohms
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	Radial, Disc
Size / Dimension	0.291" Dia x 0.122" T (7.40mm x 3.10mm)
Lead Spacing	0.201" (5.10mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the RLD60P030XFF is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage rating: 60V or higher
Current hold (Ih): 300 mA nominal
Current trip (It): 600 mA nominal
Resistance characteristics: Initial resistance approximately 880 mOhms; post-trip resistance maximum 2.1 Ohms
Mounting configuration: Through-hole radial disc
Physical dimensions: 0.291" diameter with 5.10mm lead spacing
Operating temperature range: -40°C to 85°C

Substitute Categories:

Category 1: Direct Electrical Equivalents (Same Voltage, Same Current Rating)

60R030XPR (Littelfuse, Active status)

Category 2: Higher Voltage Equivalents (72V Rating, Same Current Rating)

72R030XPR (Littelfuse, Active status)
RXEF030-AP (Littelfuse PolySwitch®, Active status)

Category 3: Lower Current Ratings (Same Voltage, Different Current)

PFRA.010 / PFRA.010.2 (SCHURTER, 60V / 100 mA)
PFRA.017 / PFRA.017.2 (SCHURTER, 60V / 170 mA)
PFRA.020 / PFRA.020.2 (SCHURTER, 60V / 200 mA)
PFRA.025 (SCHURTER, 60V / 250 mA)

Parameter Comparison

Part Number	Manufacturer	Voltage (Max)	Ih (mA)	It (mA)	Ri (mOhms)	R1 (Ohms)	Status	Package
RLD60P030XFF	Littelfuse	60V	300	600	880	2.1	Obsolete	Radial, Disc
60R030XPR	Littelfuse	60V	300	600	880	2.1	Active	Radial, Disc
72R030XPR	Littelfuse	72V	300	600	880	2.1	Active	Radial, Disc
RXEF030-AP	Littelfuse	72V	300	600	880	2.1	Active	Radial, Disc
PFRA.010	SCHURTER	60V	100	200	2500	7.5	Active	Radial, Disc
PFRA.010.2	SCHURTER	60V	100	200	2500	7.5	Active	Radial, Disc
PFRA.017	SCHURTER	60V	170	340	2000	8	Active	Radial, Disc
PFRA.017.2	SCHURTER	60V	170	340	2000	8	Active	Radial, Disc
PFRA.020	SCHURTER	60V	200	400	1500	4.4	Active	Radial, Disc
PFRA.020.2	SCHURTER	60V	200	400	1500	4.4	Active	Radial, Disc
PFRA.025	SCHURTER	60V	250	500	1000	3	Active	Radial, Disc

Engineering Selection Recommendations

Primary Recommendation: 60R030XPR

The 60R030XPR is the direct active equivalent to the RLD60P030XFF. It maintains identical electrical specifications (60V, 300 mA hold current, 600 mA trip current) and physical form factor. Both components are ROHS3 compliant and certified by cURus and TUV. The 60R030XPR is currently in active production status with substantial inventory availability (5299 pcs), making it the optimal choice for direct replacement.

Secondary Recommendation: 72R030XPR or RXEF030-AP

For applications where higher voltage margin is acceptable, the 72R030XPR and RXEF030-AP provide identical current ratings and resistance characteristics with 72V maximum voltage rating. Both are active products with full compliance certifications. The RXEF030-AP offers expanded approval agency coverage (CQC, CSA, TUV, UL) compared to the 60R030XPR.

Alternative Consideration: SCHURTER PFRA Series

The SCHURTER PFRA series components (PFRA.010 through PFRA.025) are available in both bulk and cut-tape packaging options. These parts maintain 60V voltage rating and through-hole radial mounting but with lower current hold ratings. Selection from this series requires circuit analysis to confirm that the reduced current rating is compatible with the application's protection requirements.

Frequently Asked Questions (FAQ)

Q: Can 60R030XPR directly replace RLD60P030XFF without circuit modification?

A: Yes. The 60R030XPR is electrically and mechanically equivalent. Both components share identical voltage, current hold, current trip, and resistance specifications. Physical dimensions and lead spacing are compatible with existing PCB layouts designed for the RLD60P030XFF.

Q: What is the difference between 60R030XPR and 72R030XPR?

A: The primary difference is maximum voltage rating: 60R030XPR is rated for 60V maximum, while 72R030XPR is rated for 72V maximum. All other electrical parameters (300 mA hold current, 600 mA trip current, resistance values) are identical. The 72R030XPR provides additional voltage margin for applications operating near the 60V limit.

Q: Are PFRA series components suitable replacements?

A: PFRA series components are suitable only if circuit requirements permit lower current hold ratings. PFRA.010 (100 mA), PFRA.017 (170 mA), PFRA.020 (200 mA), and PFRA.025 (250 mA) all operate at 60V but with reduced hold current compared to the RLD60P030XFF (300 mA). Circuit analysis is required to confirm compatibility.

Q: What packaging options are available?

A: The 60R030XPR is supplied in cut-tape (CT) packaging. SCHURTER PFRA components are available in both bulk and cut-tape (CT) options. Packaging selection depends on procurement volume and assembly process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, consistent with the original RLD60P030XFF specification.

Q: What is the difference between PFRA.020 and PFRA.020.2?

A: Both components are electrically identical (60V, 200 mA hold current). The primary difference is packaging: PFRA.020 is supplied in bulk packaging, while PFRA.020.2 is supplied in cut-tape (CT) packaging. The base product number for both is PFRA.020.

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