FR154G Equivalent & Substitute Parts

Part Overview

The FR154G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 1.5 A average rectified current in a DO-204AC (DO-15) axial through-hole package. This component is classified as Active product status with RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and packaging specifications align with application requirements, enabling component sourcing flexibility across multiple manufacturers and product lines.

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	V @ A
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Package / Case	DO-204AC, DO-15, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the FR154G are classified based on the following critical parameters that determine functional equivalence:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Package / Case: DO-204AC (DO-15) Axial
Mounting Type: Through Hole
RoHS Status: ROHS3 Compliant

Secondary Selection Parameters:

Current - Average Rectified (Io): 1.5 A (parametric equivalent) or 1.0 A to 2.0 A (similar range)
Voltage - Forward (Vf) (Max): 1.1 V to 1.3 V
Reverse Recovery Time (trr): 50 ns to 3.5 µs
Operating Temperature Range: -55°C to 175°C

Substitutes are grouped into two categories: Parametric Equivalent (identical current rating) and Similar (alternative current ratings within compatible range). All substitute parts maintain identical package specifications and voltage ratings, ensuring mechanical and electrical compatibility within the specified parameter envelope.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Tj (Min-Max) [°C]	Speed Classification
FR154G	Taiwan Semiconductor Corporation	400	1.5	1.3 @ 1.5 A	150	5 @ 400 V	-55 to 150	Fast Recovery ≤ 500ns
FR154GH	Taiwan Semiconductor Corporation	400	1.5	1.3 @ 1.5 A	150	5 @ 400 V	-55 to 150	Fast Recovery ≤ 500ns
1N5060GP-E3/54	Vishay General Semiconductor - Diodes Division	400	1.0	1.2 @ 1 A	2000	5 @ 400 V	-65 to 175	Standard Recovery > 500ns
1N5617GP-E3/54	Vishay General Semiconductor - Diodes Division	400	1.0	1.2 @ 1 A	150	0.5 @ 400 V	-65 to 175	Fast Recovery ≤ 500ns
EGP20G-E3/54	Vishay General Semiconductor - Diodes Division	400	2.0	1.25 @ 2 A	50	5 @ 400 V	-65 to 150	Fast Recovery ≤ 500ns
GP15G-E3/54	Vishay General Semiconductor - Diodes Division	400	1.5	1.1 @ 1.5 A	3500	5 @ 400 V	-65 to 175	Standard Recovery > 500ns

Engineering Selection Recommendations

Parametric Equivalent Substitute:

FR154GH is a parametric equivalent to FR154G, manufactured by Taiwan Semiconductor Corporation. Both parts share identical electrical specifications (400 V, 1.5 A, 150 ns recovery time) and package configuration. FR154GH carries AEC-Q101 automotive qualification, indicating enhanced reliability screening and traceability. Selection of FR154GH is appropriate when automotive-grade components are required or when higher inventory availability (7935 pcs vs. 846 pcs) is a sourcing consideration.

Similar Substitutes - Current Rating Variations:

1N5060GP-E3/54 and 1N5617GP-E3/54 (Vishay) are rated for 1.0 A average rectified current, below the FR154G specification of 1.5 A. These parts are suitable for applications where the actual circuit current demand does not exceed 1.0 A. 1N5617GP-E3/54 maintains fast recovery characteristics (150 ns) matching FR154G, while 1N5060GP-E3/54 exhibits standard recovery (2 µs), affecting switching performance in high-frequency applications.

EGP20G-E3/54 (Vishay) is rated for 2.0 A average rectified current, exceeding FR154G specification. This part provides current margin for applications requiring higher current capacity within the same 400 V voltage class. Fast recovery time (50 ns) enables superior switching performance compared to FR154G.

GP15G-E3/54 (Vishay) matches the 1.5 A current rating but exhibits standard recovery characteristics (3.5 µs), resulting in higher reverse recovery losses. This part is suitable for low-frequency rectification applications where recovery speed is not a performance constraint.

All substitute parts maintain DO-204AC package compatibility, through-hole mounting, RoHS3 compliance, and 400 V voltage rating. Operating temperature ranges extend to -65°C to 175°C for Vishay parts, providing wider thermal operating envelope compared to FR154G (-55°C to 150°C).

Frequently Asked Questions (FAQ)

Q: Can FR154GH be used as a direct replacement for FR154G?

A: Yes. FR154GH is a parametric equivalent with identical electrical specifications (400 V, 1.5 A, 150 ns recovery time) and DO-204AC package configuration. The primary difference is AEC-Q101 automotive qualification on FR154GH, which does not preclude use in non-automotive applications.

Q: What is the difference between fast recovery and standard recovery diodes in this product line?

A: Fast recovery diodes (FR154G, 1N5617GP-E3/54, EGP20G-E3/54) exhibit reverse recovery times ≤ 500 ns, reducing switching losses in high-frequency applications. Standard recovery diodes (1N5060GP-E3/54, GP15G-E3/54) have recovery times > 500 ns, suitable for low-frequency rectification where switching speed is not critical.

Q: Can 1N5060GP-E3/54 (1.0 A) replace FR154G (1.5 A)?

A: 1N5060GP-E3/54 is suitable only if the application circuit current does not exceed 1.0 A. The lower current rating creates a safety margin reduction. If circuit current approaches or exceeds 1.0 A, this substitution is not appropriate.

Q: Is EGP20G-E3/54 (2.0 A) a suitable substitute for FR154G (1.5 A)?

A: Yes. EGP20G-E3/54 provides higher current capacity (2.0 A) within the same 400 V voltage class and DO-204AC package. This substitution is appropriate when current margin is desired or when the application requires higher current handling capability. No circuit modification is required.

Q: What is the significance of the operating temperature range difference between FR154G and Vishay substitutes?

A: FR154G operates from -55°C to 150°C junction temperature, while Vishay parts (1N5060GP-E3/54, 1N5617GP-E3/54, GP15G-E3/54) extend to -65°C to 175°C. The wider Vishay range accommodates more extreme thermal environments. Selection depends on application thermal requirements; the FR154G range is sufficient for standard industrial and consumer applications.

Q: Are all substitute parts compatible with the DO-204AC package footprint?

A: Yes. All listed substitute parts use DO-204AC (DO-15) axial through-hole package, ensuring mechanical compatibility with existing PCB layouts and component placement equipment.

Q: What does RoHS3 compliance indicate?

A: RoHS3 compliance certifies that the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All listed parts maintain RoHS3 compliance, ensuring regulatory compatibility across EU and equivalent markets.

Q: Can GP15G-E3/54 be used in high-frequency switching applications?

A: GP15G-E3/54 exhibits standard recovery characteristics (3.5 µs), making it unsuitable for high-frequency switching applications where fast recovery is required. This part is optimized for low-frequency rectification. For high-frequency applications, select fast recovery alternatives (FR154G, 1N5617GP-E3/54, or EGP20G-E3/54).

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