GP10B-M3/73 Equivalent & Substitute Parts

Part Overview

The GP10B-M3/73 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 100 V DC reverse voltage and 1 A average rectified current in a DO-204AL (DO-41) through-hole axial package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within acceptable parameter tolerances for the application.

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
Reverse Recovery Time (trr)	3	µs
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Capacitance @ Vr, F	8	pF @ 4V, 1MHz
Package / Case	DO-204AL, DO-41, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-65 to 175	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the GP10B-M3/73 is determined by the following critical electrical and mechanical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 100 V or greater to ensure safe operation within the original circuit design envelope.

Current Rating: The average rectified current must be 1 A or greater. Parts rated above 1 A (such as 1.3 A or 2 A) are acceptable as they provide additional current capacity without reducing circuit performance.

Forward Voltage: Forward voltage drop at rated current must not exceed 1.1 V @ 1 A to maintain power dissipation and thermal characteristics within design limits.

Reverse Recovery Time: Standard recovery characteristics (>500 ns) are acceptable. Fast recovery diodes (≤500 ns) are also acceptable as they represent improved performance.

Reverse Leakage Current: Maximum reverse leakage of 5 µA @ 100 V is the specified limit.

Package and Mounting: All substitutes must use through-hole axial mounting in DO-204AL (DO-41) or equivalent axial package configuration to ensure mechanical compatibility with existing PCB layouts.

Operating Temperature Range: The junction temperature range must encompass the original specification of -65°C to 175°C, or be compatible with the application's actual operating environment.

Substitute parts are grouped into three categories: Parametric Equivalents (Vishay parts with identical specifications), Manufacturer-Recommended Alternatives (active parts from other manufacturers), and Functional Substitutes (parts with enhanced performance characteristics).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs/ns]	Ir @ Vr [µA]	Package	Product Status	Inventory [Pcs]
GP10B-M3/73	Vishay	100	1	1.1 @ 1 A	3 µs	5 @ 100 V	DO-204AL	Obsolete	1063
1N4002GP-E3/73	Vishay	100	1	1.1 @ 1 A	2 µs	5 @ 100 V	DO-204AL	Active	3100
1N4002GPE-E3/73	Vishay	100	1	1.1 @ 1 A	2 µs	5 @ 100 V	DO-204AL	Active	9935
GP10-4002E-E3/53	Vishay	100	1	1.1 @ 1 A	3 µs	5 @ 100 V	DO-204AL	Active	981
GP10B-E3/73	Vishay	100	1	1.1 @ 1 A	3 µs	5 @ 100 V	DO-204AL	Active	947
1N4002-G	Comchip Technology	100	1	1.1 @ 1 A	>500 ns	5 @ 100 V	DO-41	Active	13557
1N4002G A0G	Taiwan Semiconductor Corporation	100	1	1.0 @ 1 A	>500 ns	5 @ 100 V	DO-204AL	Active	752
1N4002G B0G	Taiwan Semiconductor Corporation	100	1	1.0 @ 1 A	>500 ns	5 @ 100 V	DO-204AL	Active	990
1N6077	Microchip Technology	100	1.3	1.76 @ 18.8 A	30 ns	5 @ 100 V	Axial	Active	1063
EGP10B	Fairchild Semiconductor	100	1	0.95 @ 1 A	50 ns	5 @ 100 V	DO-204AL	Active	66152
MUR210G	onsemi	100	2	0.94 @ 2 A	30 ns	2 @ 100 V	Axial	Obsolete	702

Engineering Selection Recommendations

Parametric Equivalents (Vishay SUPERECTIFIER® Series): The parts 1N4002GP-E3/73, 1N4002GPE-E3/73, GP10-4002E-E3/53, and GP10B-E3/73 are direct parametric equivalents manufactured by Vishay. These parts maintain the 100 V / 1 A rating and are ROHS3 compliant. The 1N4002GPE-E3/73 offers the highest inventory availability (9935 pcs) and is supplied in cut tape packaging. The 1N4002GP-E3/73 exhibits improved reverse recovery time (2 µs versus 3 µs), representing enhanced performance. All Vishay equivalents are active products suitable for new designs and production continuity.

Manufacturer-Recommended Alternatives: The 1N4002-G from Comchip Technology and the 1N4002G A0G and 1N4002G B0G variants from Taiwan Semiconductor Corporation are active, ROHS3-compliant alternatives with identical voltage and current ratings. The Comchip part offers the highest inventory level (13557 pcs) and is available in cut tape packaging. Taiwan Semiconductor variants provide forward voltage ratings of 1.0 V @ 1 A, representing lower power dissipation compared to the original 1.1 V specification. These parts are suitable for direct substitution in existing applications.

Enhanced Performance Alternatives: The EGP10B from Fairchild Semiconductor provides superior performance characteristics with fast recovery time (50 ns), lower forward voltage (950 mV @ 1 A), and exceptional inventory availability (66152 pcs). This part is recommended for applications where reduced power dissipation and improved switching characteristics are beneficial. The 1N6077 from Microchip Technology offers increased current capacity (1.3 A) and fast recovery characteristics (30 ns), providing design margin for higher-current applications while maintaining 100 V voltage rating.

Obsolete Parts: The MUR210G from onsemi is classified as obsolete and should not be selected for new designs, despite its active inventory status. This part is listed for reference only in legacy system support scenarios.

Compliance and Certification: All recommended active substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original GP10B-M3/73 specification.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher current rating, such as the 1N6077 (1.3 A) or MUR210G (2 A), in place of the GP10B-M3/73 (1 A)?

A: Yes. A higher current rating does not degrade circuit performance. The substitute part will operate safely at or below the original design current. The 1N6077 and MUR210G are both rated for 100 V reverse voltage and provide additional current capacity without affecting the 1 A operating point of the original circuit.

Q: What is the difference between the Vishay 1N4002GP-E3/73 and 1N4002GPE-E3/73?

A: Both parts are parametric equivalents with identical electrical specifications. The primary difference is packaging: 1N4002GP-E3/73 is supplied in standard packaging, while 1N4002GPE-E3/73 is supplied in cut tape (CT) format. The 1N4002GPE-E3/73 offers significantly higher inventory availability (9935 pcs versus 3100 pcs).

Q: Are there any temperature range limitations when substituting the GP10B-M3/73?

A: The original GP10B-M3/73 operates from -65°C to 175°C. Most active substitutes maintain this range or a compatible subset. The Taiwan Semiconductor variants (1N4002G A0G and 1N4002G B0G) operate from -55°C to 150°C, which is acceptable for applications not requiring the full -65°C lower limit. Verify the application's actual operating temperature requirements before selection.

Q: What is the significance of reverse recovery time (trr) in selecting a substitute?

A: Reverse recovery time affects switching speed and power dissipation in high-frequency applications. The original GP10B-M3/73 has a standard recovery time of 3 µs. Substitutes with faster recovery times (2 µs, 50 ns, or 30 ns) represent improved performance and are fully compatible. Standard recovery time substitutes are also acceptable and maintain identical electrical behavior at the original operating frequency.

Q: Can I substitute the GP10B-M3/73 with the EGP10B from Fairchild Semiconductor?

A: Yes. The EGP10B is a direct functional equivalent with identical 100 V / 1 A ratings and DO-204AL package. The EGP10B offers superior performance with fast recovery time (50 ns) and lower forward voltage (950 mV @ 1 A versus 1.1 V). This part is recommended for new designs and provides the highest inventory availability among all substitutes (66152 pcs).

Q: What packaging options are available for substitutes?

A: All substitutes use through-hole axial mounting in either DO-204AL (DO-41) or equivalent axial package configuration. Packaging variants include bulk, cut tape (CT), and tape & box (TB) formats. These are supply chain variations and do not affect electrical or mechanical compatibility. Select based on procurement and assembly requirements.

Q: Is the GP10B-M3/73 still available for purchase?

A: The GP10B-M3/73 is classified as obsolete. However, 1063 pcs are listed as new original in stock. For long-term procurement and new designs, selection of an active equivalent such as 1N4002GPE-E3/73, 1N4002-G, or EGP10B is recommended to ensure supply chain continuity.

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

A: Standard recovery diodes (>500 ns) have slower reverse recovery characteristics and are suitable for low-frequency rectification applications. Fast recovery diodes (≤500 ns) switch faster and generate less heat, making them preferable for switching power supplies and higher-frequency circuits. Both types are electrically compatible with the GP10B-M3/73 in standard rectification applications.

Q: Can I use the MUR210G as a substitute?

A: The MUR210G is classified as obsolete and should not be selected for new designs. While it maintains 100 V voltage rating and provides 2 A current capacity, its obsolete status creates long-term supply risk. Active alternatives such as EGP10B or 1N6077 are recommended instead.

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