FR156-TP Equivalent & Substitute Parts

Part Overview

The FR156-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 800V DC reverse voltage and 1.5A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The FR156-TP serves in applications requiring fast recovery rectification with moderate current handling in standard through-hole configurations.

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
Reverse Recovery Time (trr)	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 800 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
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the FR156-TP are qualified based on electrical parameter equivalence and mechanical compatibility. The substitution criteria are:

Electrical Parameters (Must Match):

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
Reverse Recovery Time (trr): 500 ns
Current - Reverse Leakage @ Vr: 5 µA @ 800 V
Capacitance @ Vr, F: 20 pF @ 4V, 1MHz

Mechanical Parameters (Must Match):

Mounting Type: Through Hole
Package / Case: DO-204AC, DO-15, Axial
Operating Temperature - Junction: -55°C ~ 150°C

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Technology: Standard

The substitute parts FR156G and FR156GH are derived from the same FR156 base product number and maintain full electrical and mechanical equivalence to the FR156-TP.

Parameter Comparison

Parameter	FR156-TP (Micro Commercial Co)	FR156G (Taiwan Semiconductor)	FR156GH (Taiwan Semiconductor)
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 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
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	500 ns	500 ns	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 800 V	5 µA @ 800 V	5 µA @ 800 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
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active
Grade	Standard	Standard	Automotive
Qualification	Not specified	Not specified	AEC-Q101

Engineering Selection Recommendations

FR156G (Taiwan Semiconductor Corporation): The FR156G is an active product offering full electrical and mechanical equivalence to the FR156-TP. This substitute is suitable for standard industrial applications where automotive qualification is not required. The part maintains ROHS3 compliance and is available in active production status, ensuring long-term supply continuity.

FR156GH (Taiwan Semiconductor Corporation): The FR156GH provides identical electrical and mechanical specifications to the FR156-TP with the addition of automotive-grade qualification to AEC-Q101 standard. This substitute is appropriate for applications requiring automotive-level reliability and traceability. The AEC-Q101 qualification provides enhanced quality assurance for automotive and mission-critical environments.

Both substitute parts are derived from the same FR156 base product family and provide direct functional replacement for the obsolete FR156-TP in through-hole circuit board applications.

Frequently Asked Questions (FAQ)

Q: Can FR156G and FR156GH be used interchangeably with FR156-TP? A: Yes. Both FR156G and FR156GH maintain identical electrical parameters (800V reverse voltage, 1.5A current rating, 500ns recovery time) and mechanical compatibility (DO-15 through-hole package). The primary difference is that FR156GH includes automotive-grade qualification (AEC-Q101), while FR156G is standard grade.

Q: What is the difference between FR156G and FR156GH? A: Both parts are electrically and mechanically identical. FR156GH carries AEC-Q101 automotive qualification, making it suitable for automotive and high-reliability applications. FR156G is standard grade without automotive qualification. Selection depends on application requirements.

Q: Why is FR156-TP listed as obsolete? A: The FR156-TP is classified as obsolete by the original manufacturer (Micro Commercial Co). The substitute parts FR156G and FR156GH from Taiwan Semiconductor Corporation are active products providing equivalent functionality and ensuring continued availability.

Q: Are there any package differences between these parts? A: All three parts use the DO-204AC/DO-15 axial through-hole package. No package modifications are required when substituting FR156-TP with FR156G or FR156GH.

Q: Do the substitute parts meet RoHS compliance? A: Yes. Both FR156G and FR156GH are ROHS3 compliant, matching the compliance status of the original FR156-TP.

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 identical thermal performance specifications.

Q: Which substitute should I select for automotive applications? A: FR156GH is the appropriate selection for automotive applications, as it carries AEC-Q101 qualification. FR156G is suitable for standard industrial applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message