FR601-AP Equivalent & Substitute Parts

Part Overview

The FR601-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 6 A average rectified current in an R-6 axial through-hole package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Active alternatives with identical or compatible electrical and mechanical specifications are available from the same manufacturer and qualified alternative suppliers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	6	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 6 A	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	10 @ 50 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	R-6, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C

Substitute Part Grouping Explanation

Substitute parts for the FR601-AP are classified based on strict electrical and mechanical parameter matching. Substitution eligibility requires:

Critical Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): 50 V
Current - Average Rectified (Io): 6 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 6 A
Reverse Recovery Time (trr): 150 ns
Package / Case: R-6, Axial
Mounting Type: Through Hole
Operating Temperature - Junction: -55°C to 150°C

Grouping Categories:

Direct Manufacturer Equivalent: FR601GP-AP from Micro Commercial Co maintains identical electrical specifications and active product status, differing only in product designation and availability status.

Parametric Equivalent: FR601B-G from Comchip Technology meets all critical electrical parameters with one minor variance in capacitance specification (100 pF versus 150 pF @ 4V, 1MHz), which does not affect rectification performance in standard applications. This part is supplied in Tape & Box packaging and carries active product status.

Parameter Comparison

Parameter	FR601-AP (Main)	FR601GP-AP (Direct Equivalent)	FR601B-G (Parametric Equivalent)
Manufacturer	Micro Commercial Co	Micro Commercial Co	Comchip Technology
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V
Current - Average Rectified (Io)	6 A	6 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 6 A	1.3 V @ 6 A	1.3 V @ 6 A
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V
Capacitance @ Vr, F	150 pF @ 4V, 1MHz	150 pF @ 4V, 1MHz	100 pF @ 4V, 1MHz
Package / Case	R-6, Axial	R-6, Axial	R-6, Axial
Mounting Type	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

FR601GP-AP (Direct Manufacturer Equivalent): This part is the primary substitute for the obsolete FR601-AP. Manufactured by Micro Commercial Co with active product status, FR601GP-AP provides identical electrical and mechanical specifications with no parameter deviations. This part carries ROHS3 compliance and unlimited moisture sensitivity rating. Selection of FR601GP-AP eliminates obsolescence risk while maintaining full design compatibility.

FR601B-G (Parametric Equivalent from Alternative Manufacturer): Comchip Technology's FR601B-G qualifies as a parametric equivalent with all critical electrical specifications matching the FR601-AP. The capacitance specification differs at 100 pF versus 150 pF, a variance that does not impact rectification performance in standard circuit applications. This part is supplied in Tape & Box packaging format and carries active product status with ROHS3 compliance. FR601B-G is suitable for applications where alternative manufacturer sourcing is acceptable and packaging format compatibility is confirmed.

Both substitute parts maintain identical voltage ratings, current ratings, forward voltage characteristics, and recovery time specifications. Selection between FR601GP-AP and FR601B-G depends on procurement availability, packaging requirements, and supplier qualification status.

Frequently Asked Questions (FAQ)

Q: Can FR601GP-AP be used as a direct replacement for FR601-AP?

A: Yes. FR601GP-AP is manufactured by the same supplier (Micro Commercial Co) and provides identical electrical specifications including voltage rating, current rating, forward voltage, and recovery time. The part is in active production status, eliminating obsolescence concerns.

Q: What is the difference between FR601B-G and FR601-AP?

A: FR601B-G from Comchip Technology matches all critical electrical parameters of FR601-AP with one specification variance: capacitance is rated at 100 pF versus 150 pF at 4V, 1MHz. This difference does not affect rectification performance. FR601B-G is supplied in Tape & Box packaging rather than bulk packaging.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the R-6 axial through-hole package with identical mechanical dimensions and pin configuration, enabling direct board-level substitution without layout modifications.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. FR601GP-AP and FR601B-G both carry ROHS3 compliance certification, matching the compliance status of the original FR601-AP.

Q: What is the moisture sensitivity rating for these parts?

A: All three parts carry Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture-related storage or handling restrictions.

Q: Can FR601B-G be used in high-frequency switching applications?

A: FR601B-G maintains the same reverse recovery time (150 ns) and fast recovery classification as FR601-AP, supporting identical switching frequency performance in rectification circuits.

Q: What packaging formats are available for substitutes?

A: FR601GP-AP is available in standard packaging. FR601B-G is supplied in Tape & Box (TB) format. Packaging selection depends on assembly process requirements and procurement volume.

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