FR156GP-TP Equivalent & Substitute Parts

Part Overview

The FR156GP-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 800 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for maintaining legacy systems, supporting existing production lines, and ensuring design continuity where this diode is currently specified.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	800 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)	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 800 V
Capacitance @ Vr, F	20 pF @ 4 V, 1 MHz
Package / Case	DO-204AC, DO-15, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the FR156GP-TP is determined by strict equivalence across the following critical parameters:

Parametric Equivalents (Direct Substitutes): Parts that match all electrical specifications, reverse voltage rating, average rectified current, forward voltage drop, recovery speed classification, reverse leakage current, and capacitance characteristics. These parts operate identically within the same thermal and electrical operating range and are interchangeable at the circuit level.

Similar Substitutes (Functional Alternatives): Parts that meet or exceed the primary electrical requirements (voltage and current ratings) but may differ in secondary characteristics such as recovery speed classification, forward voltage, or capacitance. These parts are suitable for applications where the primary design constraints are voltage and current handling, but circuit timing or switching behavior may be affected.

The substitution logic is based strictly on:

Voltage - DC Reverse (Vr) (Max): 800 V minimum
Current - Average Rectified (Io): 1.5 A minimum
Package compatibility: DO-15 / DO-204AC through-hole axial
Operating temperature range: -55°C ~ 150°C minimum
RoHS3 compliance and REACH unaffected status

Parameter Comparison

Parameter	FR156GP-TP (Main)	FR156G (Parametric Equivalent)	FR156GH (Parametric Equivalent)	2A06GHB0G (Similar Substitute)
Manufacturer	Micro Commercial Co	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	1.5 A	1.5 A	1.5 A	2 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 V @ 2 A
Speed Classification	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Standard Recovery > 500 ns, > 200 mA (Io)
Reverse Recovery Time (trr)	500 ns	500 ns	500 ns	Not specified
Current - Reverse Leakage @ Vr	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 V
Capacitance @ Vr, F	20 pF @ 4 V, 1 MHz	20 pF @ 4 V, 1 MHz	20 pF @ 4 V, 1 MHz	15 pF @ 4 V, 1 MHz
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	Not specified	Not specified	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

Parametric Equivalents (FR156G and FR156GH):

The FR156G and FR156GH are direct parametric equivalents to the FR156GP-TP. Both parts share identical electrical specifications across all critical parameters: 800 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage drop at 1.5 A, fast recovery speed classification with 500 ns reverse recovery time, and matching reverse leakage and capacitance characteristics. Both are manufactured by Taiwan Semiconductor Corporation and maintain active product status with ROHS3 compliance.

The FR156GH includes AEC-Q101 automotive qualification, making it suitable for applications requiring automotive-grade reliability. The FR156G is available in higher inventory quantities (7679 pieces) compared to FR156GH (7669 pieces), providing supply flexibility. Both are supplied in Cut Tape (CT) packaging and are functionally interchangeable with the FR156GP-TP at the circuit level.

Similar Substitute (2A06GHB0G):

The 2A06GHB0G is a functional alternative manufactured by Taiwan Semiconductor Corporation with active product status and AEC-Q101 automotive qualification. This part exceeds the primary design requirements with a 2 A average rectified current rating (versus 1.5 A) while maintaining the same 800 V reverse voltage rating and operating temperature range.

The 2A06GHB0G differs in secondary characteristics: it features a lower forward voltage drop (1 V @ 2 A) and standard recovery speed classification (> 500 ns) rather than fast recovery. The capacitance is also reduced to 15 pF @ 4 V, 1 MHz. These differences indicate slower switching behavior and reduced junction capacitance. The 2A06GHB0G is suitable for applications where the primary constraint is voltage and current handling capacity, but where circuit timing or switching frequency is not critical. Higher inventory availability (842 pieces) supports supply continuity.

Frequently Asked Questions (FAQ)

Q: Can FR156G or FR156GH be used as direct replacements for FR156GP-TP?

A: Yes. FR156G and FR156GH are parametric equivalents with identical electrical specifications. Both match the 800 V reverse voltage, 1.5 A current rating, 1.3 V forward voltage drop, fast recovery speed, 500 ns reverse recovery time, and all other critical parameters. Both are through-hole DO-15 packages and operate across the same -55°C to 150°C temperature range. Substitution is direct at the circuit level.

Q: What is the difference between FR156GH and FR156G?

A: FR156GH includes AEC-Q101 automotive qualification and is supplied in Cut Tape packaging. FR156G is also supplied in Cut Tape packaging but does not specify automotive qualification. Both share identical electrical parameters and are functionally equivalent. Selection between them depends on application requirements for automotive-grade certification.

Q: When should 2A06GHB0G be used instead of the parametric equivalents?

A: The 2A06GHB0G is suitable when higher current capacity (2 A versus 1.5 A) is beneficial or when lower forward voltage drop (1 V @ 2 A) is advantageous. However, this part operates with standard recovery speed (> 500 ns) rather than fast recovery (≤ 500 ns), resulting in slower switching behavior. Use 2A06GHB0G only in applications where switching speed is not a design constraint and where the higher current rating provides system margin.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. FR156G, FR156GH, and 2A06GHB0G are all ROHS3 compliant and REACH unaffected, matching the compliance status of the FR156GP-TP.

Q: What is the packaging difference between the main part and substitutes?

A: The FR156GP-TP is supplied in Tape & Reel (TR) packaging. FR156G and FR156GH are supplied in Cut Tape (CT) packaging. The 2A06GHB0G packaging is not specified in the provided data. All parts use the same DO-15 through-hole axial package format and are mechanically compatible for circuit board assembly.

Q: Does the FR156GH automotive qualification affect circuit performance?

A: AEC-Q101 qualification indicates the part meets automotive industry reliability and testing standards. It does not alter electrical performance characteristics. The FR156GH delivers identical electrical specifications to FR156G. The qualification ensures enhanced reliability for automotive and high-reliability applications.

Q: What inventory considerations apply to these substitutes?

A: FR156G has the highest inventory (7679 pieces), followed by FR156GH (7669 pieces) and 2A06GHB0G (842 pieces). The original FR156GP-TP has 767 pieces available. For sustained supply, FR156G or FR156GH are preferred due to higher stock levels.

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