1N4002 General Purpose Rectifier Diode – Equivalent & Substitute Parts

Part Overview

The 1N4002 is a general purpose rectifier diode rated for 100 V DC reverse voltage and 1 A average rectified current in a through-hole axial package (DO-41/DO-204AL). This component is classified as Obsolete by the original manufacturer (Micro Commercial Co), making equivalent and substitute parts necessary for ongoing production and maintenance applications.

The 1N4002 serves in standard rectification circuits, power supply designs, and general-purpose switching applications where moderate voltage and current ratings are required. Due to its obsolete status, sourcing from active manufacturers or selecting functionally equivalent alternatives is essential for design continuity.

Key Parameters

Parameter	Value	Unit
Voltage – DC Reverse (Vr) Maximum	100	V
Current – Average Rectified (Io)	1	A
Voltage – Forward (Vf) Maximum @ If	1.0–1.1	V @ 1 A
Reverse Recovery Time (trr)	2	µs
Current – Reverse Leakage @ Vr	5	µA @ 100 V
Speed Classification	Standard Recovery >500ns, >200mA	—
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature – Junction	−55 to +150 (base); −65 to +175 (upgraded)	°C
RoHS Status	RoHS3 Compliant (substitutes); Non-compliant (original)	—

Substitute Part Grouping Explanation

Substitution of the 1N4002 is determined by strict electrical and mechanical compatibility:

Primary Substitution Criteria:

Voltage – DC Reverse (Vr) rating: 100 V minimum
Current – Average Rectified (Io): 1 A minimum
Reverse Recovery Time (trr): 2 µs (standard recovery classification)
Current – Reverse Leakage @ Vr: 5 µA @ 100 V maximum
Mounting Type: Through Hole
Package compatibility: DO-41 or DO-204AL (axial leads)

Substitution Categories:

Direct Equivalents – Identical electrical specifications and package form factor. These parts are pin-for-pin and functionally interchangeable with the original 1N4002:

1N4002-TP (Micro Commercial Co, Cut Tape packaging)
1N4002-T (Diodes Incorporated, Cut Tape packaging)
1N4002-E3/53 (Vishay, Cut Tape packaging)
1N4002E-E3/53 (Vishay, Cut Tape packaging)

Upgraded Equivalents – Meet or exceed all electrical specifications of the 1N4002 with enhanced temperature range (−65 to +175°C vs. −55 to +150°C) and active product status. These are direct functional replacements with improved reliability characteristics:

1N4002GP-E3/54 (Vishay SUPERECTIFIER®, Cut Tape packaging)
1N4002GP-E3/73 (Vishay SUPERECTIFIER®)
1N4002GPE-E3/54 (Vishay SUPERECTIFIER®, Cut Tape packaging)
1N4002GPE-E3/73 (Vishay SUPERECTIFIER®, Cut Tape packaging)

Package Variant – Identical electrical specifications with alternative through-hole package form (T-1 vs. DO-41):

D2G-T (Diodes Incorporated, Tape & Reel packaging, T-1 package)

Lower-Rated Alternative – Reduced voltage rating (50 V vs. 100 V) for applications not requiring full 100 V reverse voltage capability:

1N4001G-T (Diodes Incorporated, 50 V rating, DO-41 package)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [V]	trr [µs]	Ir @ Vr [µA]	Package	Temp Range [°C]	Product Status	RoHS
1N4002	Micro Commercial Co	100	1	1.1	2	5 @ 100V	DO-41	−55 to +150	Obsolete	Non-compliant
1N4002-TP	Micro Commercial Co	100	1	1.1	2	5 @ 100V	DO-41	−55 to +150	Not For New Designs	ROHS3 Compliant
1N4002-T	Diodes Incorporated	100	1	1.0	2	5 @ 100V	DO-41	−65 to +150	Last Time Buy	ROHS3 Compliant
D2G-T	Diodes Incorporated	100	1	1.0	2	5 @ 100V	T-1	−65 to +150	Active	ROHS3 Compliant
1N4002GP-E3/54	Vishay General Semiconductor	100	1	1.1	2	5 @ 100V	DO-204AL	−65 to +175	Active	ROHS3 Compliant
1N4002GP-E3/73	Vishay General Semiconductor	100	1	1.1	2	5 @ 100V	DO-204AL	−65 to +175	Active	ROHS3 Compliant
1N4002GPE-E3/54	Vishay General Semiconductor	100	1	1.1	2	5 @ 100V	DO-204AL	−65 to +175	Active	ROHS3 Compliant
1N4002GPE-E3/73	Vishay General Semiconductor	100	1	1.1	2	5 @ 100V	DO-204AL	−65 to +175	Active	ROHS3 Compliant
1N4002-E3/53	Vishay General Semiconductor	100	1	1.1	—	5 @ 100V	DO-204AL	−50 to +150	Active	ROHS3 Compliant
1N4002E-E3/53	Vishay General Semiconductor	100	1	1.1	—	5 @ 100V	DO-204AL	−50 to +150	Active	ROHS3 Compliant
1N4001G-T	Diodes Incorporated	50	1	1.0	2	5 @ 50V	DO-41	−65 to +175	Active	ROHS3 Compliant

Engineering Selection Recommendations

For New Designs and Active Production:

Select from the Vishay SUPERECTIFIER® series (1N4002GP-E3/54, 1N4002GP-E3/73, 1N4002GPE-E3/54, or 1N4002GPE-E3/73). These parts are classified as Active, carry ROHS3 compliance certification, and provide an extended operating temperature range (−65 to +175°C) compared to the original 1N4002 specification. The enhanced temperature range provides improved reliability margin in thermal stress environments.

For Maintenance and Legacy System Support:

The 1N4002-T (Diodes Incorporated) is classified as Last Time Buy and remains available in volume. This part maintains identical electrical specifications to the original 1N4002 while offering ROHS3 compliance and an extended lower temperature limit (−65°C vs. −55°C).

For Package-Constrained Applications:

The D2G-T (Diodes Incorporated) provides identical electrical performance in an alternative through-hole package (T-1 vs. DO-41). This part is Active and ROHS3 compliant. Selection of this variant is appropriate only when the T-1 package form factor is mechanically compatible with the circuit board layout.

For Reduced Voltage Applications:

The 1N4001G-T (Diodes Incorporated) is suitable only for applications where the reverse voltage requirement does not exceed 50 V. This part is Active and ROHS3 compliant with an extended temperature range (−65 to +175°C). Use of this lower-rated part in circuits requiring 100 V reverse voltage capability will result in component failure.

Compliance Consideration:

All recommended substitute parts carry ROHS3 compliance certification. The original 1N4002 is marked as RoHS non-compliant. Substitution with any ROHS3-compliant equivalent satisfies modern regulatory requirements for electronic component sourcing.

Frequently Asked Questions (FAQ)

Q: Can the 1N4002-TP be used as a direct replacement for the original 1N4002?

A: Yes. The 1N4002-TP is electrically and mechanically identical to the original 1N4002, with identical voltage, current, and thermal specifications. The primary difference is packaging format (Cut Tape vs. bulk) and product status classification (Not For New Designs). For existing inventory or legacy system repairs, this part is functionally equivalent.

Q: What is the difference between the Vishay 1N4002GP and 1N4002GPE series?

A: Both series meet identical electrical specifications (100 V, 1 A, 2 µs recovery time) and carry the SUPERECTIFIER® designation. The primary distinction is the suffix designation (GP vs. GPE) and packaging code (E3/54 vs. E3/73), which indicate different tape reel configurations and supplier packaging standards. Electrical performance and reliability are equivalent between the two series.

Q: Why does the D2G-T have a different package designation (T-1) compared to the 1N4002 (DO-41)?

A: The D2G-T uses a T-1 through-hole axial package, which is a smaller form factor than the DO-41 package. Both are through-hole axial diodes with identical electrical specifications. The T-1 package is appropriate only if the circuit board layout accommodates the smaller lead diameter and spacing. Mechanical compatibility must be verified before substitution.

Q: Is the 1N4001G-T a suitable substitute for the 1N4002?

A: The 1N4001G-T is not a direct substitute. While it maintains the same 1 A current rating and through-hole package form, its reverse voltage rating is limited to 50 V compared to the 1N4002's 100 V rating. Use of the 1N4001G-T in a circuit designed for 100 V reverse voltage will result in diode failure. This part is suitable only for applications with maximum reverse voltage requirements of 50 V or less.

Q: What is the significance of the temperature range difference between the original 1N4002 (−55 to +150°C) and upgraded alternatives (−65 to +175°C)?

A: The extended temperature range of upgraded alternatives provides improved operational margin in thermally demanding environments. The lower limit extension (−55 to −65°C) allows operation in cold-temperature applications. The upper limit extension (+150 to +175°C) permits operation in high-temperature environments without derating. For applications operating within the original −55 to +150°C range, both specifications are functionally equivalent.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed carry ROHS3 compliance certification. The original 1N4002 is marked as RoHS non-compliant. Substitution with any listed equivalent satisfies RoHS3 regulatory requirements for electronic component sourcing in regulated markets.

Q: What does "Last Time Buy" product status mean for the 1N4002-T?

A: Last Time Buy status indicates that the manufacturer (Diodes Incorporated) has announced the end of production for this part number. Existing inventory may be available from authorized distributors, but no new manufacturing runs are planned. For long-term production requirements, selection of an Active-status part (such as the Vishay SUPERECTIFIER® series) is recommended.

Q: Can the 1N4002-E3/53 or 1N4002E-E3/53 be used in applications requiring the full −65 to +175°C temperature range?

A: No. Both the 1N4002-E3/53 and 1N4002E-E3/53 are rated for −50 to +150°C operation, which is narrower than the upgraded Vishay SUPERECTIFIER® series (−65 to +175°C). For applications requiring extended temperature range operation, select from the 1N4002GP or 1N4002GPE series.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape packaging consists of individual components cut from a continuous tape, typically supplied in smaller quantities for manual assembly or low-volume production. Tape & Reel packaging maintains components on a continuous reel for automated pick-and-place assembly equipment. Electrical specifications are identical; packaging selection depends on assembly process requirements and production volume.

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