1N4002-TP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The 1N4002-TP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 1 A average rectified current in a DO-41 through-hole axial package. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is no longer readily available or where design flexibility permits alternative sources.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 1N4002-TP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Current - Average Rectified (Io): Must equal or exceed 1 A
Mounting Type: Through Hole (axial or radial lead configurations acceptable)
Package / Case: DO-204AL, DO-41, or equivalent axial package

Secondary Compatibility Factors:

Forward voltage (Vf) at rated current: Acceptable range 1.0 V to 1.2 V @ 1 A
Recovery speed: Standard recovery (>500 ns) or faster recovery acceptable
Operating temperature range: Must support application requirements
RoHS compliance: ROHS3 compliance preferred for regulatory alignment

Non-Substitutable Scenarios:

Voltage ratings below 100 V (e.g., 1N4001G-T at 50 V) are not direct substitutes
Voltage ratings significantly above 100 V (e.g., 1N4007G-T at 1000 V) introduce unnecessary design margin and cost
Current ratings below 1 A do not meet minimum application requirements

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	trr [µs]	Ir @ Vr [µA]	Package	Status
1N4002-TP	Micro Commercial Co	100	1	1.1 @ 1 A	Standard >500ns	2	5 @ 100 V	DO-41	Not For New Designs
1N4002-T	Diodes Incorporated	100	1	1.0 @ 1 A	Standard >500ns	—	5 @ 100 V	DO-41	Last Time Buy
1N4002E-E3/53	Vishay General Semiconductor - Diodes Division	100	1	1.1 @ 1 A	Standard >500ns	—	5 @ 100 V	DO-204AL (DO-41)	Active
1N4002G	Taiwan Semiconductor Corporation	100	1	1.0 @ 1 A	Standard >500ns	—	5 @ 100 V	DO-204AL (DO-41)	Active
1N4002G A0G	Taiwan Semiconductor Corporation	100	1	1.0 @ 1 A	Standard >500ns	—	5 @ 100 V	DO-204AL (DO-41)	Active
1N4002G-T	Diodes Incorporated	100	1	1.0 @ 1 A	Standard >500ns	2	5 @ 100 V	DO-41	Active
1N4002RLG	onsemi	100	1	1.1 @ 1 A	Standard >500ns	—	10 @ 100 V	Axial	Not For New Designs
1N4934-E3/54	Vishay General Semiconductor - Diodes Division	100	1	1.2 @ 1 A	Fast Recovery ≤500ns	0.2	5 @ 100 V	DO-204AL (DO-41)	Active
1N6077	Microchip Technology	100	1.3	1.76 @ 18.8 A	Fast Recovery ≤500ns	0.03	5 @ 100 V	Axial	Active

Engineering Selection Recommendations

Direct Electrical Equivalents (100 V, 1 A, Standard Recovery):

The following parts provide direct electrical equivalence to the 1N4002-TP with identical voltage and current ratings:

1N4002-T (Diodes Incorporated): Active product status. Identical electrical specifications with forward voltage of 1.0 V @ 1 A. Recommended for new procurement due to active manufacturing status and Last Time Buy availability window.
1N4002E-E3/53 (Vishay General Semiconductor - Diodes Division): Active product status. Matches 1N4002-TP forward voltage specification (1.1 V @ 1 A). Supplied in DO-204AL package variant. Suitable for direct replacement in through-hole applications.
1N4002G (Taiwan Semiconductor Corporation): Active product status. Electrical equivalent with 1.0 V forward voltage. Available in both tape & reel and tape & box packaging options. Supports high-volume procurement.
1N4002G-T (Diodes Incorporated): Active product status. Identical to 1N4002-T with extended operating temperature range (-65°C to 175°C). Recommended where thermal margin is required.

Functional Equivalents with Enhanced Performance:

1N4934-E3/54 (Vishay General Semiconductor - Diodes Division): Active product status. Maintains 100 V, 1 A ratings with fast recovery characteristics (≤500 ns, trr = 200 ns). Forward voltage 1.2 V @ 1 A. Suitable where faster switching is beneficial and forward voltage increase is acceptable.

Higher Current Capability:

1N6077 (Microchip Technology): Active product status. Rated for 100 V, 1.3 A with fast recovery (trr = 30 ns). RoHS non-compliant. Provides current margin above 1 A specification. Axial package. Suitable for applications requiring higher current headroom.

Legacy Alternatives (Not For New Designs):

1N4002RLG (onsemi): Not For New Designs status. Maintains 100 V, 1 A specifications. Reverse leakage 10 µA @ 100 V (higher than 1N4002-TP). Axial package. Use only for legacy system maintenance where original part sourcing is exhausted.

Parts Not Recommended as Substitutes:

1N4001G-T: 50 V rating insufficient for 100 V application requirement.
1N4007G-T: 1000 V rating introduces excessive design margin and cost for 100 V application.

Frequently Asked Questions (FAQ)

Q: Can I use a 1N4001 (50 V) diode in place of the 1N4002-TP (100 V)?

A: No. The 1N4001 is rated for maximum 50 V reverse voltage. Using it in a 100 V application will result in diode failure due to reverse voltage exceeding the device rating. Voltage rating must equal or exceed the application requirement.

Q: What is the difference between 1N4002-T and 1N4002G-T?

A: Both are 100 V, 1 A general purpose rectifiers with identical electrical performance. The primary difference is operating temperature range: 1N4002-T operates -65°C to 150°C, while 1N4002G-T extends to -65°C to 175°C. Select 1N4002G-T if the application requires operation above 150°C.

Q: Can I substitute a 1N4934-E3/54 (fast recovery) for the 1N4002-TP (standard recovery)?

A: Yes. The 1N4934-E3/54 maintains the same 100 V, 1 A ratings and is electrically compatible. Fast recovery diodes (trr = 200 ns) are suitable replacements for standard recovery devices (trr = 2 µs) in rectification applications. The faster recovery time provides improved switching performance with no negative impact on circuit function. Forward voltage is slightly higher (1.2 V vs. 1.1 V), which is acceptable in most applications.

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

A: "Not For New Designs" indicates the manufacturer has discontinued active development and is in end-of-life phase. Existing inventory may be available, but long-term supply is not guaranteed. For new designs or long-term production, select parts with "Active" status such as 1N4002-T, 1N4002E-E3/53, or 1N4002G-T.

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

A: Yes. DO-41 and DO-204AL are equivalent package designations for axial through-hole diodes. Both refer to the same physical form factor with leads on opposite ends. Parts specified as either package type are mechanically and electrically compatible in through-hole PCB applications.

Q: What is the significance of RoHS compliance?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. All recommended substitute parts (1N4002-T, 1N4002E-E3/53, 1N4002G, 1N4002G-T, 1N4934-E3/54) are ROHS3 compliant. The 1N6077 is RoHS non-compliant and should be avoided in applications requiring regulatory compliance.

Q: Can I use a higher voltage diode like the 1N4007 (1000 V) instead of the 1N4002 (100 V)?

A: While electrically functional, the 1N4007 is not recommended as a substitute. Higher voltage ratings introduce unnecessary design margin, increase component cost, and may alter circuit performance characteristics. Select diodes matched to application voltage requirements: use 100 V devices for 100 V applications.

Q: What is reverse leakage current and why does it matter?

A: Reverse leakage current (Ir) is the small current that flows through a reverse-biased diode. The 1N4002-TP specifies 5 µA @ 100 V. The 1N4002RLG specifies 10 µA @ 100 V. In most applications, this difference is negligible. However, in high-impedance circuits or precision analog applications, lower leakage is preferred. Select 1N4002-T, 1N4002E-E3/53, or 1N4002G if leakage current is a design consideration.

Q: What packaging options are available for 1N4002 equivalents?

A: Substitute parts are available in three packaging formats: Cut Tape (CT), Tape & Reel (TR), and Tape & Box (TB). Cut Tape is suitable for small-quantity procurement and manual assembly. Tape & Reel is standard for automated pick-and-place assembly. Tape & Box combines reel format with protective packaging. Select packaging based on assembly method and procurement volume.

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