Equivalent & Substitute Parts Reference: MF-R020-0-17

Part Overview

MF-R020-0-17 is a Bourns Multifuse® polymeric PTC resettable fuse rated at 60V and 200 mA hold current, with radial (disc) through-hole packaging. The part is active, RoHS3 compliant, AEC-Q200 rated, and certified by cUL, cURus, TUV, and UL. Users often seek alternative models due to supply constraints, differing inventory levels, or specific compliance and certification requirements.

Key Parameters

Parameter	Value
Voltage - Max	60V
Current - Hold (Ih) (Max)	200 mA
Current - Trip (It)	400 mA
Current - Max	40 A
Time to Trip	2.2 s
Resistance - Initial (Ri) (Min)	1.5 Ohms
Resistance - Post Trip (R1) (Max)	4.4 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)
Height - Seated (Max)	0.500" (12.70mm)
Lead Spacing	0.201" (5.10mm)
RoHS Status	ROHS3 Compliant
Approval Agency	cUL, cURus, TUV, UL
Ratings	AEC-Q200
Product Status	Active

Substitute Part Grouping Explanation

Substitution is based strictly on matching the following key parameters:

Maximum voltage rating
Hold current (Ih) maximum
Trip current (It)
Maximum current
Time to trip
Initial and post-trip resistance
Operating temperature range
Mounting type and package/case style
Size and mechanical dimensions
Lead spacing
RoHS compatibility
Approval agency certifications Only parts with identical or allowed slight variation per these fields are grouped as equivalents or substitutes.

Parameter Comparison

Parameter	MF-R020-0-17 (Main)	MF-R020 (Bourns Inc.)	MF-RX020/72-0 (Bourns Inc.)	PFRA.020 (SCHURTER Inc.)
Voltage - Max	60V	60V	72V	60V
Current - Hold (Ih) (Max)	200 mA	200 mA	200 mA	200 mA
Current - Trip (It)	400 mA	400 mA	400 mA	400 mA
Current - Max	40 A	40 A	40 A	40 A
Time to Trip	2.2 s	2.2 s	2.2 s	2.2 s
Resistance - Initial (Ri) (Min)	1.5 Ohms	1.5 Ohms	1.5 Ohms	1.5 Ohms
Resistance - Post Trip (R1) (Max)	4.4 Ohms	4.4 Ohms	4.4 Ohms	4.4 Ohms
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc
Size / Dimension	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.291" Dia x 0.122" T (7.40mm x 3.10mm)
Height - Seated (Max)	0.500" (12.70mm)	0.500" (12.70mm)	0.500" (12.70mm)	0.500" (12.70mm)
Lead Spacing	0.201" (5.10mm)	0.201" (5.10mm)	0.201" (5.10mm)	0.201" (5.10mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	cUL, cURus, TUV, UL	cURus, TUV	cURus, TUV	cURus, TUV
Ratings	AEC-Q200	-	-	-
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed are active and available in bulk packaging. MF-R020-0-17 features AEC-Q200 and a broader set of approval agencies (cUL, cURus, TUV, UL); substitute parts maintain cURus and TUV certifications and are ROHS3 compliant. When regulatory certification or specific industry ratings such as AEC-Q200 are required, select accordingly from the parameter table. All substitutes are through-hole, radial-disc format and match mechanical dimensions and electrical/thermal profiles.

Frequently Asked Questions (FAQ)

Q1: How are substitutes for MF-R020-0-17 determined?
Substitutes are identified based on matching the key electrical ratings, mechanical package type, size, and compliance certifications as explicitly defined in the provided parameters.

Q2: Are all substitute parts the same size and format as the main part?
Yes, all listed alternatives have the same through-hole radial disc package, identical dimensions, and lead spacing.

Q3: Do substitute parts have equivalent electrical performance?
All substitutes listed share identical values for voltage rating, hold and trip current, time to trip, resistance characteristics, and operating temperature range.

Q4: Are there any differences in certification or compliance?
The main part is rated AEC-Q200 and certified by cUL, cURus, TUV, and UL. Substitute options retain cURus and TUV, are ROHS3 compliant, but do not specify AEC-Q200 or UL certifications. Selection should be based on certification requirements for the application.

Q5: Can substitutes be used in place of MF-R020-0-17 without modification?
All substitutes are mechanically and electrically compatible per the provided parameters. Application-specific certification or ratings should be verified according to project documentation.

Q6: What is the impact of selecting a substitute with a higher voltage rating?
MF-RX020/72-0 provides a 72V rating instead of 60V, while all other electrical and mechanical parameters remain identical. This is suitable where higher voltage tolerance is required within allowed parameters.

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