FR155-TP Equivalent & Substitute Parts

Part Overview

The FR155-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The FR155-TP serves in applications requiring fast recovery rectification with moderate voltage and current ratings, commonly found in power supply circuits, converter stages, and general rectification applications.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1.5 A
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Reverse Recovery Time (trr)	250 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the FR155-TP is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters (Critical for Substitution):

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 1.5 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1.5 A
Reverse Recovery Time (trr): 250 ns
Speed Classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Mechanical Parameters (Critical for Substitution):

Mounting Type: Through Hole
Package / Case: DO-204AC, DO-15, Axial

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Operating Temperature - Junction: -55°C ~ 150°C

All substitute parts listed maintain identical electrical ratings and mechanical compatibility with the FR155-TP. Variations in reverse leakage current and capacitance do not preclude substitution when all primary parameters align.

Parameter Comparison

Parameter	FR155-TP (Main)	FR155GP-TP	FR155G	FR155GH	PG156R_R2_00001
Manufacturer	Micro Commercial Co	Micro Commercial Co	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Panjit International Inc.
Product Status	Obsolete	Active	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	1.5 A	1.5 A	1.5 A	1.5 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1.5 A	1.3 V @ 1.5 A	1.3 V @ 1.5 A	1.3 V @ 1.5 A	1.3 V @ 1.5 A
Reverse Recovery Time (trr)	250 ns	250 ns	250 ns	250 ns	250 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	1 µA @ 600 V
Capacitance @ Vr, F	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	35 pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Bulk	Tape & Reel (TR)	Cut Tape (CT)	Cut Tape (CT)	Tape & Reel (TR)
Grade	Standard	Standard	Standard	Automotive	Standard
Qualification	None Listed	None Listed	None Listed	AEC-Q101	None Listed

Engineering Selection Recommendations

FR155GP-TP is the primary direct substitute for FR155-TP. Both parts are manufactured by Micro Commercial Co with identical electrical and mechanical specifications. FR155GP-TP carries active product status and is available in Tape & Reel packaging, providing superior supply chain continuity compared to the obsolete FR155-TP.

FR155G and FR155GH are parametric equivalents manufactured by Taiwan Semiconductor Corporation. Both maintain all critical electrical parameters and mechanical compatibility. FR155GH carries automotive-grade qualification (AEC-Q101) and is suitable for applications requiring automotive-level reliability. FR155G is the standard-grade equivalent. Both are available in Cut Tape packaging.

PG156R_R2_00001 is a parametric equivalent manufactured by Panjit International Inc. This part maintains all critical electrical parameters and mechanical compatibility. The reverse leakage current specification (1 µA @ 600 V) is superior to the main part (5 µA @ 600 V), and capacitance is specified at 35 pF versus 20 pF. These variations do not prevent substitution when electrical performance requirements are met. PG156R_R2_00001 is available in Tape & Reel packaging.

All substitute parts are ROHS3 compliant and operate across the same temperature range (-55°C ~ 150°C). Selection among substitutes should be based on packaging requirements, supply availability, and application-specific reliability needs.

Frequently Asked Questions (FAQ)

Q: Can FR155GP-TP directly replace FR155-TP in existing designs?

A: Yes. FR155GP-TP is manufactured by the same supplier (Micro Commercial Co) with identical electrical ratings (600 V, 1.5 A, 250 ns recovery time) and mechanical specifications (DO-15 through-hole package). The only difference is packaging format (Tape & Reel versus bulk) and active product status.

Q: What is the difference between FR155G and FR155GH?

A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical and mechanical specifications. FR155GH carries automotive-grade qualification (AEC-Q101) and is designated for automotive applications. FR155G is standard-grade. Selection depends on application requirements and automotive compliance needs.

Q: Is PG156R_R2_00001 suitable as a substitute despite different reverse leakage and capacitance specifications?

A: Yes. PG156R_R2_00001 maintains all critical electrical parameters: 600 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage at 1.5 A, and 250 ns reverse recovery time. The lower reverse leakage current (1 µA versus 5 µA) and higher capacitance (35 pF versus 20 pF) do not preclude substitution when these variations are compatible with circuit design requirements.

Q: What packaging options are available among the substitute parts?

A: FR155GP-TP is supplied in Tape & Reel (TR) format. FR155G and FR155GH are supplied in Cut Tape (CT) format. PG156R_R2_00001 is supplied in Tape & Reel (TR) format. The original FR155-TP was supplied in bulk packaging. Packaging selection affects procurement, handling, and assembly processes.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts (FR155GP-TP, FR155G, FR155GH, and PG156R_R2_00001) are ROHS3 compliant, matching the compliance status of the original FR155-TP.

Q: What is the operating temperature range for these diodes?

A: All parts, including the main FR155-TP and all substitutes, operate across a junction temperature range of -55°C to 150°C.

Q: Can these parts be used interchangeably in the same circuit board layout?

A: Yes. All parts use identical through-hole DO-15 (DO-204AC) axial packaging, enabling direct mechanical and electrical substitution without circuit board redesign.

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