MF-R075-0-17 Equivalent & Substitute Parts

Part Overview

The MF-R075-0-17 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 750 mA hold current and 60V maximum voltage rating. The part is active in production status with full RoHS3 compliance and international approvals including cUL, cURus, TUV, and UL certification. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, inventory optimization, or supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Maximum	60	V
Current - Hold (Ih)	750	mA
Current - Trip (It)	1.5	A
Current - Maximum	40	A
Time to Trip	6.3	s
Resistance - Initial (Ri)	180	mOhms
Resistance - Post Trip (R1)	600	mOhms
Operating Temperature Range	-40 to 85	°C
Mounting Type	Through Hole	—
Package Type	Radial, Disc	—
Diameter	10.40	mm
Thickness	3.10	mm
Height - Seated	16.00	mm
Lead Spacing	5.10	mm
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MF-R075-0-17 is determined by strict equivalence across electrical and mechanical parameters. The primary substitution criteria are:

Electrical Parameters (Must Match):

Current Hold (Ih): 750 mA
Current Trip (It): 1.5 A
Time to Trip: 6.3 s
Resistance Initial (Ri): 180 mOhms minimum
Resistance Post Trip (R1): 600 mOhms maximum
Operating Temperature: -40°C to 85°C

Mechanical Parameters (Must Match):

Mounting Type: Through Hole
Package Type: Radial, Disc
Physical Dimensions: 10.40mm diameter × 3.10mm thickness
Height Seated: 16.00mm maximum
Lead Spacing: 5.10mm

Voltage Consideration: The MF-R075-0-17 operates at 60V maximum. The substitute MF-RX075/72-0 operates at 72V maximum. Higher voltage rating does not prevent substitution in 60V applications, as the component operates within its rated envelope.

Compliance Parameters: All substitute parts maintain RoHS3 compliance, REACH unaffected status, and equivalent moisture sensitivity classification.

Parameter Comparison

Parameter	MF-R075-0-17 (Main)	MF-R075	MF-RX075/72-0	PFRA.075
Manufacturer	Bourns Inc.	Bourns Inc.	Bourns Inc.	SCHURTER Inc.
Series	Multifuse® MF-R	Multifuse® MF-R	Multifuse® MF-RX/72	PFRA
Type	Polymeric	Polymeric	Polymeric	Polymeric
Voltage - Max (V)	60	60	72	60
Current - Hold (mA)	750	750	750	750
Current - Trip (A)	1.5	1.5	1.5	1.5
Current - Max (A)	40	40	40	40
Time to Trip (s)	6.3	6.3	6.3	6.3
Resistance - Initial (mOhms)	180	180	180	180
Resistance - Post Trip (mOhms)	600	600	600	600
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc
Diameter (mm)	10.40	10.40	10.40	10.40
Thickness (mm)	3.10	3.10	3.10	3.10
Height - Seated (mm)	16.00	16.00	16.00	16.00
Lead Spacing (mm)	5.10	5.10	5.10	5.10
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99

Engineering Selection Recommendations

MF-R075 (Bourns Inc.) The MF-R075 is a direct parametric equivalent to the MF-R075-0-17, differing only in the absence of AEC-Q200 rating on the substitute. Both components share identical electrical specifications, mechanical dimensions, and thermal operating range. The MF-R075 carries cURus and TUV approvals. Selection of this substitute is appropriate for applications where AEC-Q200 automotive qualification is not required.

MF-RX075/72-0 (Bourns Inc.) The MF-RX075/72-0 maintains all electrical and mechanical parameters of the main part with a higher maximum voltage rating of 72V. This component operates within the 60V application envelope of the MF-R075-0-17 while providing additional voltage margin. The MF-RX075/72-0 carries cURus and TUV approvals. Selection of this substitute is appropriate for applications requiring higher voltage headroom or where the MF-RX series is preferred for supply chain reasons.

PFRA.075 (SCHURTER Inc.) The PFRA.075 is a cross-manufacturer substitute from SCHURTER Inc. with identical electrical specifications and mechanical form factor. This component provides an alternative source for polymeric PTC resettable fuse functionality at 60V and 750 mA hold current. The PFRA.075 carries cURus and TUV approvals. Selection of this substitute is appropriate for applications requiring multi-source qualification or where SCHURTER supply is preferred.

All three substitute parts maintain RoHS3 compliance, REACH unaffected status, and equivalent moisture sensitivity classification (MSL 1 or Not Applicable). All components are active in production status.

Frequently Asked Questions (FAQ)

Q: Can MF-R075 be used as a direct replacement for MF-R075-0-17?

A: Yes. The MF-R075 is a parametric equivalent with identical electrical performance (750 mA hold current, 1.5 A trip current, 6.3 s trip time) and mechanical compatibility (through-hole radial disc, 10.40mm × 3.10mm × 16.00mm). The primary difference is the absence of AEC-Q200 automotive qualification on the MF-R075. Both operate at 60V maximum and share identical resistance characteristics and temperature range.

Q: What is the difference between MF-R075-0-17 and MF-RX075/72-0?

A: The MF-RX075/72-0 has a maximum voltage rating of 72V compared to 60V for the MF-R075-0-17. All other electrical parameters (hold current, trip current, trip time, resistance values) and mechanical dimensions are identical. The higher voltage rating of the MF-RX075/72-0 does not prevent its use in 60V applications, as the component operates within its rated specification envelope.

Q: Can PFRA.075 replace MF-R075-0-17 in all applications?

A: Yes. The PFRA.075 from SCHURTER Inc. provides equivalent electrical performance and mechanical compatibility. It maintains the same 750 mA hold current, 1.5 A trip current, 60V maximum voltage, and identical physical dimensions. The PFRA.075 is suitable for applications where cross-manufacturer sourcing is required or preferred.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (MF-R075, MF-RX075/72-0, and PFRA.075) are ROHS3 compliant and REACH unaffected, matching the compliance status of the MF-R075-0-17.

Q: Do the substitute parts fit the same PCB footprint as MF-R075-0-17?

A: Yes. All substitute parts share identical mechanical specifications: 10.40mm diameter, 3.10mm thickness, 16.00mm seated height, and 5.10mm lead spacing. No PCB layout modifications are required when substituting between these parts.

Q: Which substitute part should be selected for automotive applications?

A: The MF-R075-0-17 carries AEC-Q200 qualification. Among the substitutes, neither MF-R075, MF-RX075/72-0, nor PFRA.075 lists AEC-Q200 rating in the provided specifications. For automotive applications requiring AEC-Q200 certification, the original MF-R075-0-17 is the specified choice.

Q: What is the inventory status of each part?

A: MF-R075-0-17: 1170 pieces in stock. MF-R075: 3136 pieces in stock. MF-RX075/72-0: 2236 pieces in stock. PFRA.075: 973 pieces in stock. All parts are listed as active in production status.

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