1N5397S-T Equivalent & Substitute Parts

Part Overview

The 1N5397S-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 600 V DC reverse voltage and 1.5 A average rectified current in a DO-41 through-hole axial package. This component is classified as obsolete, indicating it is no longer in active production. Locating equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is unavailable or has extended lead times.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1.5 A
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 1N5397S-T are selected based on the following critical electrical and mechanical parameters:

Voltage Rating: All substitutes must maintain a DC reverse voltage rating of 600 V to ensure equivalent voltage withstand capability.

Current Rating: The 1.5 A average rectified current is the primary functional requirement. Substitutes with equal or higher current ratings (1.5 A, 2 A, or 3 A) are acceptable, as they provide equivalent or superior current handling without circuit modification.

Forward Voltage: Forward voltage drop at rated current must be compatible with circuit design. The original part specifies 1.1 V @ 1.5 A. Substitutes with forward voltages ranging from 1.0 V to 1.35 V at their respective rated currents are functionally equivalent.

Recovery Speed: The original part operates at standard recovery speed (>500ns). Substitutes with standard or fast recovery characteristics are acceptable, as faster recovery provides improved performance without circuit incompatibility.

Reverse Leakage Current: The original part specifies 5 µA @ 600 V. Substitutes with equal or lower reverse leakage current maintain equivalent or superior performance.

Package and Mounting: All substitutes must be through-hole axial packages (DO-41, DO-204AL, or DO-204AC) to ensure mechanical and electrical compatibility with existing PCB layouts.

Compliance: All substitutes must maintain ROHS3 compliance and EAR99 export classification to match the original part's regulatory status.

Parameter Comparison

Parameter	1N5397S-T	1N4005RLG	1N5406RLG	GP15J-E3/54	GP15J-E3/73	MUR260RLG	RGP10JE-E3/53	RGP10JE-E3/73	RGP15J-E3/54	RGP15J-E3/73	SBYV26C-E3/73
Manufacturer	Diodes Incorporated	onsemi	onsemi	Vishay	Vishay	onsemi	Vishay	Vishay	Vishay	Vishay	Vishay
Vr (Max) [V]	600	600	600	600	600	600	600	600	600	600	600
Io [A]	1.5	1	3	1.5	1.5	2	1	1	1.5	1.5	1
Vf (Max) @ If [V]	1.1 @ 1.5A	1.1 @ 1A	1 @ 3A	1.1 @ 1.5A	1.1 @ 1.5A	1.35 @ 2A	1.3 @ 1A	1.3 @ 1A	1.3 @ 1.5A	1.3 @ 1.5A	2.5 @ 1A
Speed	Standard >500ns	Standard >500ns	Standard >500ns	Standard >500ns	Standard >500ns	Fast ≤500ns	Fast ≤500ns	Fast ≤500ns	Fast ≤500ns	Fast ≤500ns	Fast ≤500ns
Ir @ Vr [µA]	5 @ 600V	10 @ 600V	10 @ 600V	5 @ 600V	5 @ 600V	5 @ 600V	5 @ 600V	5 @ 600V	5 @ 600V	5 @ 600V	5 @ 600V
Package	DO-41	Axial	Axial	DO-204AC (DO-15)	DO-204AC (DO-15)	Axial	DO-204AL (DO-41)	DO-204AL (DO-41)	DO-204AC (DO-15)	DO-204AC (DO-15)	DO-204AL (DO-41)
Tj (Operating) [°C]	-65 ~ 150	-65 ~ 175	-65 ~ 150	-65 ~ 175	-65 ~ 175	-65 ~ 175	-65 ~ 175	-65 ~ 175	-65 ~ 175	-65 ~ 175	-65 ~ 175
Product Status	Obsolete	Not For New Designs	Not For New Designs	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Exact Electrical Match with Active Status):

The parts GP15J-E3/54 and GP15J-E3/73 are the preferred substitutes for the 1N5397S-T. Both are manufactured by Vishay General Semiconductor and provide identical electrical specifications: 600 V reverse voltage, 1.5 A average rectified current, and 1.1 V forward voltage at rated current. Both parts carry Active product status, ensuring long-term availability and supply chain stability. These parts are ROHS3 compliant and REACH unaffected, matching the regulatory profile of the original component. The primary difference between these two variants is packaging format (Cut Tape vs. Tape & Box), which does not affect electrical performance.

Secondary Substitutes (Higher Current Rating):

The part MUR260RLG provides a 2 A current rating, exceeding the 1.5 A requirement of the original part. This part is manufactured by onsemi and carries Active product status. It maintains 600 V reverse voltage and 5 µA reverse leakage current. The MUR260RLG features fast recovery characteristics (75 ns), which improves switching performance compared to the standard recovery speed of the original part. This part is suitable for applications where higher current margin or improved switching performance is beneficial.

The part 1N5406RLG provides a 3 A current rating, further exceeding the original specification. This part is manufactured by onsemi and carries Not For New Designs status, indicating limited future availability. It maintains 600 V reverse voltage and 10 µA reverse leakage current. This part is suitable only for legacy system maintenance where higher current capacity is required.

Alternative Substitutes (Lower Current Rating):

The parts RGP10JE-E3/53 and RGP10JE-E3/73 are manufactured by Vishay and provide 1 A current rating, which is lower than the original 1.5 A specification. These parts are suitable only for applications where the circuit current requirement does not exceed 1 A. Both parts carry Active product status and feature fast recovery characteristics. The RGP10JE-E3/53 variant specifies 150 ns reverse recovery time, while the RGP10JE-E3/73 variant specifies 250 ns.

The part 1N4005RLG is manufactured by onsemi and provides 1 A current rating. This part carries Not For New Designs status, limiting its suitability for new applications. It is acceptable for legacy system maintenance only.

Not Recommended:

The part SBYV26C-E3/73 specifies a forward voltage of 2.5 V @ 1 A, which is significantly higher than the original part's 1.1 V @ 1.5 A specification. This elevated forward voltage drop introduces excessive power dissipation and heat generation in most circuit applications and is not recommended as a substitute.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher current rating than the original 1N5397S-T?

A: Yes. A substitute part with a current rating equal to or higher than 1.5 A is electrically compatible. Higher current ratings provide additional margin and do not require circuit modification. The MUR260RLG (2 A) and 1N5406RLG (3 A) are acceptable substitutes from this perspective.

Q: Can I use a substitute part with a lower current rating than the original 1N5397S-T?

A: Only if your circuit current requirement does not exceed the substitute part's rating. The RGP10JE-E3/53 and RGP10JE-E3/73 (both 1 A) are suitable only for applications drawing 1 A or less. If your circuit requires 1.5 A, these parts are not acceptable.

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

A: Recovery speed refers to the time required for a diode to transition from conducting to blocking state. Standard recovery (>500ns) is slower, while fast recovery (≤500ns) is faster. Fast recovery diodes reduce switching losses and are suitable for high-frequency applications. Both types are electrically compatible in standard rectification circuits, but fast recovery diodes provide improved performance in switching applications.

Q: Are the DO-41 and DO-204AL packages interchangeable?

A: Yes. DO-41 and DO-204AL refer to the same physical package format: a through-hole axial diode package. These designations are equivalent and interchangeable on PCBs designed for this package type.

Q: Are the DO-15 and DO-204AC packages interchangeable with DO-41?

A: No. DO-15 (DO-204AC) is a smaller axial package than DO-41 (DO-204AL). While both are through-hole axial packages, they have different physical dimensions and lead spacing. PCBs designed for DO-41 cannot accommodate DO-15 packages without modification. Conversely, DO-15 packages can fit in DO-41 footprints with excess lead length, but this is not recommended for production applications.

Q: Why is the 1N5397S-T listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The part is no longer available from primary sources. Substitute parts with Active status ensure long-term availability and supply chain continuity.

Q: What does "Not For New Designs" status mean?

A: This status indicates the manufacturer is phasing out the part and recommends against using it in new circuit designs. These parts may still be available from inventory but have limited future supply. They are acceptable for legacy system maintenance and repair only.

Q: Does forward voltage drop affect circuit performance?

A: Yes. Forward voltage drop determines power dissipation in the diode and affects circuit efficiency. The original part specifies 1.1 V @ 1.5 A. Substitutes with similar forward voltage (1.0 V to 1.35 V) are compatible. The SBYV26C-E3/73 with 2.5 V forward voltage is not recommended due to excessive power dissipation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant, matching the regulatory status of the original 1N5397S-T.

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