FR154-AP Equivalent & Substitute Parts

Part Overview

The FR154-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. Equivalent parts maintain identical or superior electrical performance within the same package family, while substitute parts offer functional alternatives with modified specifications suitable for the application.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 1.5 A	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5 @ 400 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Capacitance @ Vr, F	20 @ 4V, 1MHz	pF
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the FR154-AP are classified into three categories based on electrical and mechanical compatibility:

Direct Manufacturer Equivalent (Active Status): FR154GP-AP maintains identical electrical specifications and package configuration as the obsolete FR154-AP. This part is the primary replacement option, offering the same 400 V reverse voltage, 1.5 A average rectified current, 150 ns reverse recovery time, and DO-15 package. The transition from obsolete to active status makes this the preferred direct substitution.

Parametric Equivalents (Same Current Rating): FR154G A0G and FR154GHA0G are manufactured by Taiwan Semiconductor Corporation and provide identical electrical performance to the FR154-AP across all critical parameters: 400 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage at 1.5 A, 150 ns reverse recovery time, and 5 µA reverse leakage current. Both parts are supplied in DO-204AC (DO-15) package variants. FR154GHA0G includes automotive-grade qualification (AEC-Q101), suitable for applications requiring automotive compliance.

Similar Manufacturer Part (Elevated Current Rating): SF2L6GHB0G from Taiwan Semiconductor Corporation provides a higher current rating of 2 A while maintaining the same 400 V reverse voltage and DO-15 package family. This part is suitable for applications where increased current capacity is acceptable or beneficial. The reverse recovery time is improved to 35 ns, and reverse leakage current is reduced to 1 µA. This part carries automotive-grade qualification (AEC-Q101).

All substitute parts maintain RoHS3 compliance, MSL Level 1 (Unlimited), and identical operating temperature ranges (-55°C to 150°C).

Parameter Comparison

Parameter	FR154-AP (Main)	FR154GP-AP (Direct)	FR154G A0G (Parametric)	FR154GHA0G (Parametric)	SF2L6GHB0G (Similar)
Manufacturer	Micro Commercial Co	Micro Commercial Co	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Product Status	Obsolete	Active	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	1.5 A	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	1.3 V @ 1.5 A	1.3 V @ 2 A
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns	150 ns	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	1 µA @ 400 V
Capacitance @ Vr, F	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
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
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	—	—	—	AEC-Q101	AEC-Q101
REACH Status	—	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

For Direct Replacement: FR154GP-AP is the primary selection for applications currently using FR154-AP. This part is manufactured by the same supplier (Micro Commercial Co), maintains active product status, and provides identical electrical and mechanical specifications. The transition from obsolete to active status ensures long-term availability and supply chain continuity.

For Automotive Applications: FR154GHA0G is specified for designs requiring automotive-grade components with AEC-Q101 qualification. This part maintains all electrical parameters identical to the FR154-AP while providing automotive compliance certification. The REACH Unaffected status confirms regulatory compliance for automotive supply chains.

For Enhanced Performance Requirements: SF2L6GHB0G offers improved performance characteristics including reduced reverse recovery time (35 ns versus 150 ns) and lower reverse leakage current (1 µA versus 5 µA). The elevated current rating of 2 A accommodates applications with higher current demands. This part is suitable for designs where performance enhancement is acceptable and beneficial. AEC-Q101 qualification supports automotive applications.

For Standard Industrial Applications: FR154G A0G provides parametric equivalence with identical electrical specifications and active product status. This part is suitable for general-purpose rectification applications where automotive qualification is not required.

All substitute parts maintain compliance with RoHS3 regulations, MSL Level 1 (Unlimited) moisture sensitivity, and identical operating temperature ranges. Selection should be based on application requirements for current capacity, performance characteristics, and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can FR154GP-AP be used as a direct replacement for FR154-AP?

A: Yes. FR154GP-AP is manufactured by Micro Commercial Co and maintains identical electrical specifications (400 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage at 1.5 A, 150 ns reverse recovery time) and package configuration (DO-15). The primary difference is active product status, making it the preferred direct replacement for the obsolete FR154-AP.

Q: What is the difference between the parametric equivalents FR154G A0G and FR154GHA0G?

A: Both parts provide identical electrical performance and are manufactured by Taiwan Semiconductor Corporation in DO-204AC (DO-15) package variants. The key difference is that FR154GHA0G includes automotive-grade qualification (AEC-Q101), making it suitable for automotive applications. FR154G A0G is specified for standard industrial applications without automotive requirements.

Q: When should SF2L6GHB0G be selected instead of the 1.5 A rated alternatives?

A: SF2L6GHB0G is selected when the application requires higher current capacity (2 A versus 1.5 A) or when improved performance characteristics are beneficial. The reduced reverse recovery time (35 ns) and lower reverse leakage current (1 µA) provide enhanced switching performance. This part maintains the same 400 V reverse voltage rating and DO-15 package family, ensuring mechanical compatibility.

Q: Are all substitute parts compatible with the same PCB footprint as FR154-AP?

A: Yes. All substitute parts are supplied in DO-204AC, DO-15, or Axial package variants, which share identical through-hole footprints. Mechanical compatibility is maintained across all listed alternatives.

Q: What regulatory compliance certifications apply to these substitute parts?

A: All substitute parts are RoHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity classification. FR154GHA0G and SF2L6GHB0G include AEC-Q101 automotive-grade qualification. All Taiwan Semiconductor Corporation parts carry REACH Unaffected status.

Q: Can FR154-AP be replaced with SF2L6GHB0G in existing designs without circuit modification?

A: SF2L6GHB0G maintains the same 400 V reverse voltage, forward voltage characteristics, and DO-15 package as FR154-AP. The elevated current rating (2 A) and improved reverse recovery time (35 ns) are backward compatible with designs specified for 1.5 A operation. No circuit modification is required for mechanical or electrical compatibility.

Q: What is the inventory status of these substitute parts?

A: FR154GP-AP: 1149 pieces in stock. FR154G A0G: 904 pieces in stock. FR154GHA0G: 690 pieces in stock. SF2L6GHB0G: 818 pieces in stock. All parts are available as new original components.

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