FR157-TP Equivalent & Substitute Parts

Part Overview

The FR157-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 1000 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 FR157-TP serves applications requiring fast recovery rectification with standard silicon technology in compact axial form factors.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	1000 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1.5 A
Reverse Recovery Time (trr)	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V
Capacitance @ Vr, F	20 pF @ 4V, 1MHz
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Standard

Substitute Part Grouping Explanation

Substitute parts for the FR157-TP are qualified based on electrical and mechanical parameter equivalence. All substitute diodes must meet or exceed the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 1000 V minimum
Current - Average Rectified (Io): 1.5 A minimum
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1.5 A maximum
Reverse Recovery Time (trr): 500 ns maximum
Current - Reverse Leakage @ Vr: 5 µA @ 1000 V maximum
Capacitance @ Vr, F: 20 pF @ 4V, 1MHz maximum
Mounting Type: Through Hole
Package / Case: DO-204AC, DO-15, or Axial equivalent
Operating Temperature - Junction: -55°C ~ 150°C minimum range
RoHS Status: ROHS3 Compliant

Substitutes are categorized as direct manufacturer equivalents (same manufacturer, different packaging) or parametric equivalents (different manufacturer, identical electrical specifications and compatible package).

Parameter Comparison

Parameter	FR157-TP (Main)	FR157GP-TP (Direct Equivalent)	FR157G (Parametric Equivalent)
Manufacturer	Micro Commercial Co	Micro Commercial Co	Taiwan Semiconductor Corporation
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	1000 V	1000 V	1000 V
Current - Average Rectified (Io)	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
Reverse Recovery Time (trr)	500 ns	500 ns	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	5 µA @ 1000 V	5 µA @ 1000 V
Capacitance @ Vr, F	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Supplier Device Package	DO-15	DO-15	DO-204AC (DO-15)
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Technology	Standard	Standard	Standard
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Bulk	Tape & Reel (TR)	Cut Tape (CT)

Engineering Selection Recommendations

FR157GP-TP is the primary direct substitute for FR157-TP. Both parts are manufactured by Micro Commercial Co and share identical electrical specifications and operating parameters. The FR157GP-TP is currently in active production status, addressing the obsolescence of the FR157-TP. The primary difference is packaging format: FR157GP-TP is supplied in Tape & Reel (TR) configuration, whereas FR157-TP was supplied in bulk. This packaging difference does not affect electrical performance or mechanical compatibility in through-hole applications. The FR157GP-TP is suitable for direct replacement in all applications where FR157-TP was previously specified.

FR157G is a parametric equivalent manufactured by Taiwan Semiconductor Corporation. All electrical specifications, operating temperature range, and mechanical mounting characteristics are identical to FR157-TP. The FR157G is supplied in Cut Tape (CT) packaging and is currently in active production with higher inventory availability (15,800 pcs). The supplier device package designation differs (DO-204AC versus DO-15), but both designations refer to the same physical package form factor. FR157G is suitable for applications requiring parametric equivalence with alternative sourcing.

Both substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with modern manufacturing and environmental standards. Selection between FR157GP-TP and FR157G should be based on packaging requirements, procurement lead times, and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can FR157GP-TP be used as a direct replacement for FR157-TP?

A: Yes. FR157GP-TP is electrically and mechanically equivalent to FR157-TP. Both parts share identical voltage ratings (1000 V), current ratings (1.5 A), forward voltage characteristics (1.3 V @ 1.5 A), reverse recovery time (500 ns), and operating temperature range (-55°C ~ 150°C). The packaging format difference (Tape & Reel versus bulk) does not affect circuit performance or board-level compatibility.

Q: What is the difference between FR157GP-TP and FR157G?

A: FR157GP-TP and FR157G are parametrically equivalent but sourced from different manufacturers. FR157GP-TP is manufactured by Micro Commercial Co and supplied in Tape & Reel packaging. FR157G is manufactured by Taiwan Semiconductor Corporation and supplied in Cut Tape packaging. All electrical specifications are identical. The choice between these parts depends on packaging requirements and supply chain availability.

Q: Are all three parts (FR157-TP, FR157GP-TP, FR157G) mechanically interchangeable?

A: Yes. All three parts use the same through-hole axial package form factor (DO-15 / DO-204AC). They are mechanically interchangeable in PCB designs. Pin spacing, lead diameter, and overall dimensions are identical across all three parts.

Q: Why is FR157-TP listed as obsolete?

A: FR157-TP is classified as obsolete by the manufacturer. FR157GP-TP and FR157G are active production alternatives that provide equivalent functionality and specifications. For new designs and ongoing procurement, FR157GP-TP or FR157G should be specified instead of FR157-TP.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. FR157-TP, FR157GP-TP, and FR157G are all ROHS3 compliant. All parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: What packaging options are available for these diodes?

A: FR157-TP was supplied in bulk packaging (now obsolete). FR157GP-TP is supplied in Tape & Reel (TR) format, suitable for automated assembly. FR157G is supplied in Cut Tape (CT) format. Selection depends on production volume and assembly equipment compatibility.

Q: Are there any electrical performance differences between the three parts?

A: No. All three parts have identical electrical specifications: 1000 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage @ 1.5 A, 500 ns reverse recovery time, 5 µA reverse leakage @ 1000 V, and 20 pF capacitance @ 4V, 1MHz. They are electrically interchangeable.

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

A: All three parts operate across a junction temperature range of -55°C to 150°C, providing equivalent thermal performance across industrial and commercial temperature ranges.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message