MF-R020-0-D6 Equivalent & Substitute Parts

Part Overview

The MF-R020-0-D6 is a polymeric PTC resettable fuse manufactured by Bourns Inc. in the Multifuse® MF-R series. This through-hole radial disc component provides overcurrent protection at 60V maximum voltage with a 200 mA hold current rating. The part is active in production status with full RoHS3 compliance and cURus/TUV approvals. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained across the same or compatible product categories, or when voltage ratings are increased while all other specifications remain constant.

Substiute Parts

MF-R020-0-D6

Bourns Inc.In Stock: 1226MF-R020-0-D6 Datasheet

Current PartRFQ

MF-R020

Bourns Inc.In Stock: 10481MF-R020 Datasheet

Parametric EquivalentRFQ

MF-RX020/72-0

Bourns Inc.In Stock: 3662MF-RX020/72-0 Datasheet

Parametric EquivalentRFQ

PFRA.020

SCHURTER Inc.In Stock: 870PFRA.020 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MF-R020-0-D6 are classified based on the following substitution criteria:

Direct Parametric Equivalents maintain all electrical specifications (voltage, current ratings, resistance values, trip time) and mechanical dimensions (radial disc package, lead spacing, physical size). These parts are interchangeable without circuit redesign.

Voltage-Rated Variants increase the maximum voltage rating while preserving all other electrical parameters (hold current, trip current, resistance, time to trip) and mechanical form factor. These parts provide enhanced voltage margin in the same physical package and are suitable for applications requiring higher voltage headroom.

Cross-Manufacturer Equivalents from different manufacturers (Bourns Inc. and SCHURTER Inc.) meet identical electrical and mechanical specifications within the same product category (polymeric PTC resettable fuses, through-hole radial disc configuration).

The key parameters determining substitution eligibility are: voltage rating, hold current (Ih), trip current (It), initial resistance (Ri), post-trip resistance (R1), time to trip, operating temperature range, mounting type, and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active production status and full RoHS3 compliance. Selection between MF-R020-0-D6, MF-R020, and PFRA.020 is based on identical electrical and mechanical specifications; these parts are direct parametric equivalents suitable for one-to-one replacement in 60V applications.

The MF-RX020/72-0 variant provides increased voltage rating to 72V while maintaining all other electrical parameters and mechanical form factor. This part is appropriate for applications requiring higher voltage margin within the same current and resistance specifications.

All parts carry cURus and TUV approvals, confirming compliance with applicable safety standards for polymeric PTC resettable fuses in through-hole radial disc configuration.

Frequently Asked Questions (FAQ)

Q: Can MF-R020 be used as a direct replacement for MF-R020-0-D6?

A: Yes. Both parts share identical electrical specifications (60V, 200 mA hold current, 400 mA trip current, 2.2 s trip time, 1.5 Ohms initial resistance, 4.4 Ohms post-trip resistance) and mechanical dimensions (radial disc, 0.291" diameter, 0.201" lead spacing). The difference is packaging format; MF-R020 is supplied in bulk packaging while MF-R020-0-D6 specifies tape-and-reel or alternative packaging.

Q: When should MF-RX020/72-0 be selected instead of MF-R020-0-D6?

A: MF-RX020/72-0 is selected when the application circuit operates at voltages exceeding 60V but not exceeding 72V. All other electrical parameters (hold current, trip current, resistance values, trip time) and mechanical dimensions remain identical. This part provides enhanced voltage headroom in the same physical package.

Q: Is PFRA.020 from SCHURTER Inc. fully compatible with MF-R020-0-D6?

A: Yes. PFRA.020 maintains identical electrical specifications and mechanical form factor as MF-R020-0-D6. Both are polymeric PTC resettable fuses with 60V rating, 200 mA hold current, and radial disc through-hole mounting. Both carry cURus and TUV approvals.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All listed parts share identical physical dimensions (0.291" diameter, 0.122" thickness, 0.201" lead spacing) and radial disc package configuration, ensuring compatibility with the same through-hole PCB layout.

Q: Are there any compliance or certification differences between these parts?

A: All parts are RoHS3 compliant and carry cURus and TUV approvals. PFRA.020 lists Moisture Sensitivity Level as Not Applicable, while MF-R020-0-D6 and MF-R020 specify MSL 1 (Unlimited). This difference does not affect substitution eligibility for standard through-hole assembly processes.