D5G-T Equivalent & Substitute Parts

Part Overview

The D5G-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 600 V DC reverse voltage and 1 A average rectified current. The device features standard recovery characteristics with a reverse recovery time of 2 µs and is housed in a T-1 axial through-hole package. The D5G-T maintains Active product status and is RoHS3 compliant.

Substitute parts are necessary when the original D5G-T is unavailable, when alternative packaging formats are required for assembly compatibility, or when design specifications permit selection from multiple qualified manufacturers. Equivalent devices must maintain identical electrical performance within the specified operating parameters while meeting the same regulatory and environmental standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 1 A
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Capacitance @ Vr, F	8	pF @ 4V, 1MHz
Mounting Type	Through Hole	—
Package / Case	T1, Axial	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the D5G-T is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 1 A
Mounting Type: Through Hole
Technology: Standard
RoHS Status: ROHS3 Compliant
Reverse Recovery Time (trr): 2 µs (standard recovery classification)

Package Compatibility Considerations: Substitute parts are grouped by package format. The D5G-T uses a T-1 axial package. Equivalent devices may be supplied in alternative axial packages (DO-204AL, DO-41, DO-204AC, DO-15) provided they maintain identical electrical specifications and through-hole mounting compatibility.

Forward Voltage Tolerance: Substitute parts with forward voltage (Vf) ratings of 1.0 V to 1.2 V @ 1 A are functionally equivalent within standard rectifier application tolerances.

Reverse Leakage Current: All qualified substitutes maintain reverse leakage current of 5 µA @ 600 V, with the exception of 1N4005RLG (10 µA), which remains acceptable for general-purpose applications.

Operating Temperature Range: The D5G-T operates from -65°C to 150°C. Substitute parts with extended temperature ranges (-65°C to 175°C) provide enhanced thermal margin and are fully compatible.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package / Case	Tj Range [°C]	Product Status
D5G-T	Diodes Incorporated	600	1	1 @ 1 A	2	5 @ 600 V	T1, Axial	-65 to 150	Active
1N4005-E3/54	Vishay General Semiconductor - Diodes Division	600	1	1.1 @ 1 A	—	5 @ 600 V	DO-204AL, DO-41, Axial	-55 to 150	Active
1N4005-TP	Micro Commercial Co	600	1	1.1 @ 1 A	2	5 @ 600 V	DO-204AL, DO-41, Axial	-55 to 150	Active
1N4005G	Good-Ark Semiconductor	600	1	1.1 @ 1 A	1	5 @ 600 V	DO-204AL, DO-41, Axial	-55 to 150	Active
1N4005GP-E3/54	Vishay General Semiconductor - Diodes Division	600	1	1.1 @ 1 A	2	5 @ 600 V	DO-204AL, DO-41, Axial	-65 to 175	Active
1N4005GP-E3/73	Vishay General Semiconductor - Diodes Division	600	1	1.1 @ 1 A	2	5 @ 600 V	DO-204AL, DO-41, Axial	-65 to 175	Active
1N4005RLG	onsemi	600	1	1.1 @ 1 A	—	10 @ 600 V	DO-204AL, DO-41, Axial	-65 to 175	Not For New Designs
1N4385GP-E3/54	Vishay General Semiconductor - Diodes Division	600	1	1 @ 1 A	2	5 @ 600 V	DO-204AC, DO-15, Axial	-65 to 175	Active
1N4937-E3/54	Vishay General Semiconductor - Diodes Division	600	1	1.2 @ 1 A	0.2	5 @ 600 V	DO-204AL, DO-41, Axial	-50 to 150	Active
1N4937-E3/73	Vishay General Semiconductor - Diodes Division	600	1	1.2 @ 1 A	0.2	5 @ 600 V	DO-204AL, DO-41, Axial	-50 to 150	Active
1N4937G	Taiwan Semiconductor Corporation	600	1	1.2 @ 1 A	0.2	5 @ 600 V	DO-204AL, DO-41, Axial	-55 to 150	Active

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The 1N4005GP-E3/54 and 1N4005GP-E3/73 (Vishay General Semiconductor - Diodes Division) are direct functional equivalents to the D5G-T. Both devices maintain 600 V reverse voltage, 1 A average rectified current, 2 µs reverse recovery time, and standard recovery characteristics. These parts feature extended operating temperature ranges (-65°C to 175°C) and are Active products with ROHS3 compliance. The primary difference is package format (DO-204AL instead of T-1), which requires PCB layout adjustment but maintains identical electrical performance.

The 1N4385GP-E3/54 (Vishay General Semiconductor - Diodes Division) provides an alternative with forward voltage matching the D5G-T specification (1 V @ 1 A) and identical reverse recovery time (2 µs). This device uses a DO-204AC (DO-15) axial package and operates across -65°C to 175°C. Selection of this part is appropriate when DO-15 package compatibility is required.

Secondary Substitutes (Functional Equivalence with Operational Differences):

The 1N4005-TP (Micro Commercial Co), 1N4005-E3/54 (Vishay), and 1N4005G (Good-Ark Semiconductor) maintain electrical equivalence with forward voltage of 1.1 V @ 1 A. These parts are suitable for applications where the 0.1 V forward voltage increase is acceptable. The 1N4005-TP and 1N4005G provide 2 µs and 1 µs reverse recovery times respectively, both within standard recovery classification.

The 1N4005RLG (onsemi) is classified as "Not For New Designs" and carries elevated reverse leakage current (10 µA @ 600 V). This part is acceptable only for legacy system maintenance where original part specifications are already established.

Fast Recovery Alternatives (Different Technology Class):

The 1N4937-E3/54, 1N4937-E3/73, and 1N4937G devices feature fast recovery characteristics (200 ns reverse recovery time) and are not direct substitutes for the D5G-T standard recovery specification. These parts are suitable only when application requirements explicitly permit or require fast recovery diodes.

Compliance and Regulatory Status:

All recommended primary and secondary substitutes maintain ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification, matching the D5G-T regulatory profile. All substitute parts are supplied in Cut Tape (CT) packaging format consistent with the original device.

Frequently Asked Questions (FAQ)

Q: Can I use a 1N4005 series diode as a direct replacement for the D5G-T?

A: Yes, provided the specific variant maintains 600 V reverse voltage, 1 A average rectified current, and standard recovery characteristics (2 µs reverse recovery time). The 1N4005GP-E3/54, 1N4005GP-E3/73, 1N4005-TP, and 1N4005G meet these criteria. Package format differs (DO-41 or DO-204AL instead of T-1), requiring PCB layout modification.

Q: What is the difference between the D5G-T and 1N4385GP-E3/54?

A: Both devices are electrically equivalent with identical 600 V, 1 A, 2 µs specifications. The primary difference is package format: D5G-T uses T-1 axial, while 1N4385GP-E3/54 uses DO-204AC (DO-15) axial. Forward voltage is identical at 1 V @ 1 A. Selection depends on PCB footprint requirements.

Q: Why are 1N4937 series diodes listed as substitutes if they have different recovery times?

A: The 1N4937 series (200 ns recovery time) represents a different technology class (fast recovery) and is not a direct substitute for the D5G-T (standard recovery, 2 µs). These parts are listed only when application specifications explicitly permit or require fast recovery characteristics. Standard recovery diodes (1N4005 series) are the appropriate choice for D5G-T replacement.

Q: Is the 1N4005RLG suitable for new designs?

A: No. The 1N4005RLG carries "Not For New Designs" product status. This part is acceptable only for maintenance of existing systems where the original specification is already established. For new designs, select from Active status parts: 1N4005GP-E3/54, 1N4005GP-E3/73, 1N4005-TP, 1N4005G, or 1N4385GP-E3/54.

Q: What is the significance of forward voltage differences (1.0 V vs. 1.1 V vs. 1.2 V)?

A: Forward voltage variation affects power dissipation and voltage drop across the diode during conduction. The D5G-T specifies 1.0 V @ 1 A. Substitutes with 1.1 V or 1.2 V forward voltage produce slightly higher heat generation and voltage drop. Selection depends on circuit tolerance for these parameters. Applications with tight voltage regulation requirements should prioritize 1.0 V devices (D5G-T, 1N4385GP-E3/54).

Q: Can I substitute a D5G-T with a part having a different operating temperature range?

A: Yes, provided the substitute's temperature range encompasses the D5G-T range (-65°C to 150°C). Substitutes with extended ranges (e.g., -65°C to 175°C) are fully compatible and provide additional thermal margin. Substitutes with narrower ranges (e.g., -55°C to 150°C) are acceptable only if the application does not require operation below -55°C.

Q: What does "standard recovery" mean compared to "fast recovery"?

A: Standard recovery diodes (D5G-T, 1N4005 series) have reverse recovery times greater than 500 ns, typically 1-2 µs. Fast recovery diodes (1N4937 series) have reverse recovery times of 200 ns or less. Standard recovery diodes are suitable for low-frequency and DC applications. Fast recovery diodes are required for high-frequency switching applications. The D5G-T is classified as standard recovery.

Q: Are all substitute parts available in the same packaging format as the D5G-T?

A: No. The D5G-T uses T-1 axial package. Most substitutes use DO-204AL (DO-41) or DO-204AC (DO-15) axial packages. All packages are through-hole axial format, but PCB footprints differ. Verify PCB compatibility before selecting a substitute. The 1N4385GP-E3/54 uses DO-15 format, while 1N4005 series variants use DO-41 format.

Q: What is the difference between 1N4005GP-E3/54 and 1N4005GP-E3/73?

A: Both parts are electrically identical with 600 V, 1 A, 1.1 V forward voltage, and 2 µs recovery time. The suffix difference (-E3/54 vs. -E3/73) indicates different manufacturing tape reels or packaging configurations. Selection between these variants is determined by supplier availability and procurement requirements, not electrical performance.

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