FR151-TP Equivalent & Substitute Parts

Part Overview

The FR151-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, indicating discontinuation from the original manufacturer. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for applications utilizing this rectifier diode.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	50 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1.5 A
Reverse Recovery Time (trr)	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 50 V
Capacitance @ Vr, F	20 pF @ 4 V, 1 MHz
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Standard
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the FR151-TP are classified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 50 V
Current - Average Rectified (Io): 1.5 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1.5 A
Reverse Recovery Time (trr): 150 ns
Operating Temperature - Junction: -55°C ~ 150°C

Mechanical Parameters (Must Match):

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

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into three categories: direct manufacturer equivalents (same manufacturer, different packaging), upgrade parts (alternative manufacturers with enhanced qualifications), and parametric equivalents (alternative manufacturers with identical electrical specifications).

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max)	Io	Vf (Max) @ If	trr	Ir @ Vr	Capacitance @ Vr, F	Package	Mounting	Temp Range	Grade	Qualification
FR151-TP	Micro Commercial Co	Obsolete	50 V	1.5 A	1.3 V @ 1.5 A	150 ns	5 µA @ 50 V	20 pF @ 4 V, 1 MHz	DO-15	Through Hole	-55°C ~ 150°C	—	—
FR151GP-TP	Micro Commercial Co	Active	50 V	1.5 A	1.3 V @ 1.5 A	150 ns	5 µA @ 50 V	20 pF @ 4 V, 1 MHz	DO-15	Through Hole	-55°C ~ 150°C	—	—
FR151GHB0G	Taiwan Semiconductor Corporation	Active	50 V	1.5 A	1.3 V @ 1.5 A	150 ns	5 µA @ 50 V	20 pF @ 4 V, 1 MHz	DO-204AC (DO-15)	Through Hole	-55°C ~ 150°C	Automotive	AEC-Q101
FR151G	Taiwan Semiconductor Corporation	Active	50 V	1.5 A	1.3 V @ 1.5 A	150 ns	5 µA @ 50 V	20 pF @ 4 V, 1 MHz	DO-204AC (DO-15)	Through Hole	-55°C ~ 150°C	—	—
FR151GH	Taiwan Semiconductor Corporation	Active	50 V	1.5 A	1.3 V @ 1.5 A	150 ns	5 µA @ 50 V	20 pF @ 4 V, 1 MHz	DO-204AC (DO-15)	Through Hole	-55°C ~ 150°C	Automotive	AEC-Q101
PG150R_R2_00001	Panjit International Inc.	Active	50 V	1.5 A	1.3 V @ 1.5 A	150 ns	1 µA @ 50 V	35 pF @ 4 V, 1 MHz	DO-15	Through Hole	-55°C ~ 150°C	—	—

Engineering Selection Recommendations

FR151GP-TP (Micro Commercial Co)

This part is the direct equivalent from the original manufacturer. It maintains identical electrical specifications and package configuration to the FR151-TP while offering active product status. The FR151GP-TP differs only in packaging format (Tape & Reel versus bulk), making it the primary substitute for direct replacement in production environments. Inventory availability is higher than the obsolete FR151-TP.

FR151GHB0G (Taiwan Semiconductor Corporation)

This part provides parametric equivalence with automotive-grade qualification (AEC-Q101). It is suitable for applications requiring automotive-level reliability and traceability. The FR151GHB0G maintains all electrical parameters and operating temperature range of the FR151-TP while offering enhanced qualification status and active product availability.

FR151G (Taiwan Semiconductor Corporation)

This part is a parametric equivalent offering identical electrical specifications and operating characteristics. It provides an alternative source from Taiwan Semiconductor Corporation with active product status. The FR151G is suitable for general-purpose applications where automotive qualification is not required.

FR151GH (Taiwan Semiconductor Corporation)

This part combines parametric equivalence with automotive-grade qualification (AEC-Q101). It is functionally equivalent to FR151GHB0G and suitable for applications requiring automotive reliability standards. The FR151GH offers active product status and alternative sourcing from Taiwan Semiconductor Corporation.

PG150R_R2_00001 (Panjit International Inc.)

This part is a parametric equivalent from Panjit International Inc. with identical voltage, current, and temperature specifications. Minor variations exist in reverse leakage current (1 µA versus 5 µA) and capacitance (35 pF versus 20 pF), both within acceptable tolerance for general-purpose rectifier applications. The PG150R_R2_00001 provides additional supply chain diversity with active product status.

Frequently Asked Questions (FAQ)

Q: Can FR151GP-TP be used as a direct replacement for FR151-TP?

A: Yes. The FR151GP-TP is electrically and mechanically identical to the FR151-TP. The only difference is packaging format (Tape & Reel versus bulk). Both parts share the same electrical specifications, operating temperature range, and DO-15 package configuration.

Q: What is the difference between FR151G and FR151GH?

A: Both parts are parametric equivalents with identical electrical specifications. The FR151GH includes automotive-grade qualification (AEC-Q101), making it suitable for automotive applications. The FR151G is intended for general-purpose applications. Both are manufactured by Taiwan Semiconductor Corporation.

Q: Is PG150R_R2_00001 fully compatible with FR151-TP?

A: The PG150R_R2_00001 is parametrically equivalent for primary electrical specifications (50 V, 1.5 A, 150 ns recovery time, -55°C to 150°C). Minor differences exist in reverse leakage current (1 µA versus 5 µA at 50 V) and capacitance (35 pF versus 20 pF at 4 V, 1 MHz). These variations are within acceptable tolerance for general-purpose rectifier applications.

Q: Should I select an automotive-qualified part if my application is not automotive?

A: Automotive-qualified parts (FR151GHB0G, FR151GH) offer enhanced reliability and traceability standards. Selection depends on application requirements. For general-purpose applications, non-automotive equivalents (FR151GP-TP, FR151G, PG150R_R2_00001) provide equivalent electrical performance at potentially lower cost.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the compliance status of the FR151-TP.

Q: What is the significance of the DO-204AC designation?

A: DO-204AC is the formal designation for the DO-15 package. Parts listed as DO-204AC (DO-15) use the same physical package and pin configuration as the FR151-TP, ensuring mechanical compatibility in through-hole applications.

Q: Can I mix different manufacturers in the same circuit board?

A: Yes. All substitute parts meet identical electrical specifications and operating parameters. Mixing manufacturers is acceptable from an electrical standpoint. However, design documentation should reflect the specific part number used for traceability and future maintenance.

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