1N5406GP-AP Equivalent & Substitute Parts

Part Overview

The 1N5406GP-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as Active and complies with ROHS3 and REACH standards. Substitute parts are identified when equivalent electrical ratings and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A
Package / Case	DO-201AD, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the 1N5406GP-AP are qualified based on the following criteria:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Package / Case: DO-201AD, Axial
Mounting Type: Through Hole
Product Status: Active
RoHS Compliance: ROHS3 Compliant

Current Rating Consideration: The 1N5406GP-AP is rated for 3 A average rectified current. Substitute parts may have equal or higher current ratings, as a higher-rated component operates within acceptable thermal and electrical margins when used in a 3 A application.

Recovery Speed Variation: The 1N5406GP-AP operates with standard recovery characteristics (>500 ns). Substitute parts with faster recovery characteristics (≤500 ns) are electrically compatible and provide improved performance in switching applications.

Parameter Comparison

Parameter	1N5406GP-AP	STTH3R06RL	STTH5L06RL
Manufacturer	Micro Commercial Co	STMicroelectronics	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V
Current - Average Rectified (Io)	3 A	3 A	5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A	1.7 V @ 3 A	1.3 V @ 5 A
Speed	Standard Recovery >500ns	Fast Recovery ≤500ns	Fast Recovery ≤500ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	3 µA @ 600 V	5 µA @ 600 V
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Operating Temperature - Junction (Max)	150°C	175°C	175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

STTH3R06RL (STMicroelectronics): This substitute maintains identical voltage and current ratings (600 V, 3 A) with the same DO-201AD package. It is ROHS3 compliant and Active status. The STTH3R06RL features fast recovery characteristics and a higher maximum junction temperature (175°C vs. 150°C), providing thermal margin in high-temperature environments. Forward voltage is higher at 1.7 V compared to 1.1 V, resulting in increased power dissipation in the diode.

STTH5L06RL (STMicroelectronics): This substitute provides a higher current rating (5 A vs. 3 A) while maintaining 600 V reverse voltage and DO-201AD package compatibility. It is ROHS3 compliant and Active status. The STTH5L06RL is suitable for applications requiring current margin or future design scaling. Forward voltage at 1.3 V is intermediate between the main part and STTH3R06RL. Maximum junction temperature is 175°C.

Both substitutes are electrically and mechanically compatible with the 1N5406GP-AP in applications operating at or below 3 A and 600 V specifications.

Frequently Asked Questions (FAQ)

Q: Can STTH3R06RL be used as a direct replacement for 1N5406GP-AP?

A: Yes. Both parts share identical voltage (600 V), current (3 A), and package (DO-201AD, Axial) specifications. Both are ROHS3 compliant and Active status. The STTH3R06RL has faster recovery characteristics and higher maximum junction temperature, making it suitable for direct substitution in existing designs.

Q: What is the difference between standard recovery and fast recovery diodes?

A: The 1N5406GP-AP has standard recovery time (>500 ns), while STTH3R06RL and STTH5L06RL have fast recovery time (≤500 ns). Fast recovery diodes switch off more quickly, reducing reverse recovery current and switching losses. Both types are compatible in rectification applications; fast recovery provides performance benefits in high-frequency switching circuits.

Q: Can STTH5L06RL replace 1N5406GP-AP in a 3 A application?

A: Yes. The STTH5L06RL is rated for 5 A, which exceeds the 3 A requirement of the 1N5406GP-AP. Operating at 3 A on a 5 A-rated component is within acceptable electrical and thermal margins. The higher current rating provides design margin and does not compromise circuit function.

Q: Are there packaging differences between these parts?

A: All three parts use DO-201AD axial through-hole packages. The primary packaging difference is the supplier format: 1N5406GP-AP is supplied in Tape & Box (TB), while STTH3R06RL and STTH5L06RL are supplied in Cut Tape (CT). Both formats are compatible with standard PCB assembly processes.

Q: What is the impact of forward voltage differences on circuit design?

A: The 1N5406GP-AP has 1.1 V forward voltage at 3 A, while STTH3R06RL has 1.7 V at 3 A. Higher forward voltage results in greater power dissipation in the diode. In low-voltage or high-current applications, this difference may require thermal management review. In standard rectification applications, both values are within acceptable operating ranges.

Q: Are all three parts compliant with environmental standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected. All carry ECCN EAR99 classification and HTSUS code 8541.10.0080. Moisture sensitivity level is 1 (Unlimited) for all parts.

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