RGP10B-M3/73 Equivalent & Substitute Parts

Part Overview

The RGP10B-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 operates within the SUPERECTIFIER® series and features fast recovery characteristics with a reverse recovery time of 150 ns.

The RGP10B-M3/73 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and legacy system support. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging and manufacturing variations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-204AL, DO-41, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-65 to 175	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the RGP10B-M3/73 are grouped into two categories based on electrical and mechanical compatibility:

Parametric Equivalents (Vishay SUPERECTIFIER® Series): Parts RGP10B-E3/73, RGP10BE-E3/53, and RGP10BE-E3/73 maintain identical electrical specifications to the main part, including 100 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage drop at 1 A, and 150 ns reverse recovery time. These parts are active products within the same manufacturer family and share the DO-204AL (DO-41) axial package. The primary distinction is product status: the main part is obsolete, while these equivalents are active.

Manufacturer-Recommended Alternatives: Parts 1N4934G (Taiwan Semiconductor Corporation), 1N4934G-T (Diodes Incorporated), 1N6077 (Microchip Technology), EGP10B (Fairchild Semiconductor), FR102G B0G (Taiwan Semiconductor Corporation), FR102G R1G (Taiwan Semiconductor Corporation), and MUR210RLG (onsemi) are functionally compatible across the critical electrical parameters: 100 V reverse voltage rating, fast recovery speed classification (≤ 500ns, > 200mA), and through-hole axial mounting. These parts originate from different manufacturers and may exhibit variations in forward voltage drop, reverse recovery time, reverse leakage current, and operating temperature range within acceptable engineering tolerances.

Substitution logic is based strictly on the following key parameters:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 1 A minimum
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case: DO-204AL, DO-41, or Axial through-hole
Mounting Type: Through Hole

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Product Status
RGP10B-M3/73	Vishay	100	1	1.3 @ 1 A	150	5 @ 100 V	DO-204AL (DO-41)	Obsolete
RGP10B-E3/73	Vishay	100	1	1.3 @ 1 A	150	5 @ 100 V	DO-204AL (DO-41)	Active
RGP10BE-E3/53	Vishay	100	1	1.3 @ 1 A	150	5 @ 100 V	DO-204AL (DO-41)	Active
RGP10BE-E3/73	Vishay	100	1	1.3 @ 1 A	150	5 @ 100 V	DO-204AL (DO-41)	Active
1N4934G	Taiwan Semiconductor Corporation	100	1	1.2 @ 1 A	200	5 @ 100 V	DO-204AL (DO-41)	Active
1N4934G-T	Diodes Incorporated	100	1	1.2 @ 1 A	200	5 @ 100 V	DO-204AL (DO-41)	Active
1N6077	Microchip Technology	100	1.3	1.76 @ 18.8 A	30	5 @ 100 V	Axial	Active
EGP10B	Fairchild Semiconductor	100	1	0.95 @ 1 A	50	5 @ 100 V	DO-204AL (DO-41)	Active
FR102G B0G	Taiwan Semiconductor Corporation	100	1	1.3 @ 1 A	150	5 @ 100 V	DO-204AL (DO-41)	Active
FR102G R1G	Taiwan Semiconductor Corporation	100	1	1.3 @ 1 A	150	5 @ 100 V	DO-204AL (DO-41)	Active
MUR210RLG	onsemi	100	2	0.94 @ 2 A	30	2 @ 100 V	Axial	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

The Vishay parametric equivalents RGP10B-E3/73, RGP10BE-E3/53, and RGP10BE-E3/73 are the preferred substitutes. These parts are active products within the same SUPERECTIFIER® series and maintain identical electrical specifications to the RGP10B-M3/73. All three are ROHS3 compliant and carry REACH Unaffected status, matching the compliance profile of the main part. These substitutes provide the highest level of design continuity with no electrical parameter deviations.

Secondary Substitutes (Functionally Compatible):

The 1N4934G (Taiwan Semiconductor Corporation) and 1N4934G-T (Diodes Incorporated) are active products that meet the core electrical requirements: 100 V reverse voltage, 1 A average rectified current, and fast recovery speed classification. Both are ROHS3 compliant. The forward voltage drop is slightly lower (1.2 V versus 1.3 V), and reverse recovery time is marginally longer (200 ns versus 150 ns), but these variations remain within acceptable engineering tolerances for general-purpose rectification applications. Both parts are available in DO-204AL (DO-41) packages.

The EGP10B (Fairchild Semiconductor) is an active product with 100 V reverse voltage and 1 A average rectified current ratings. This part exhibits superior reverse recovery time (50 ns) and lower forward voltage drop (0.95 V @ 1 A), making it suitable for applications requiring enhanced switching performance. The EGP10B is available in DO-204AL (DO-41) packaging.

The FR102G B0G and FR102G R1G (Taiwan Semiconductor Corporation) are active products with identical electrical specifications to the main part: 100 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage drop at 1 A, and 150 ns reverse recovery time. Both are ROHS3 compliant and available in DO-204AL (DO-41) packages.

Higher Current Alternatives (For Upgraded Designs):

The 1N6077 (Microchip Technology) and MUR210RLG (onsemi) are active products rated for higher average rectified currents (1.3 A and 2 A respectively) while maintaining 100 V reverse voltage ratings. These parts are suitable for applications requiring increased current capacity. The 1N6077 is available in axial packaging; the MUR210RLG is supplied in axial format. Both are ROHS3 compliant. These parts should be selected only when circuit design permits higher current ratings.

Compliance and Availability:

All recommended substitutes are ROHS3 compliant and REACH Unaffected, ensuring regulatory alignment with the main part. Inventory availability varies across manufacturers and part numbers, with EGP10B showing the highest stock level (66,152 pcs) and FR102G B0G showing the lowest (798 pcs) among active alternatives.

Frequently Asked Questions (FAQ)

Q: Can the RGP10B-E3/73 be used as a direct replacement for the RGP10B-M3/73?

A: Yes. The RGP10B-E3/73 is a parametric equivalent with identical electrical specifications: 100 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage drop at 1 A, and 150 ns reverse recovery time. Both parts use the DO-204AL (DO-41) axial through-hole package. The primary difference is product status: RGP10B-M3/73 is obsolete, while RGP10B-E3/73 is active. No circuit modifications are required.

Q: What is the difference between the Vishay parametric equivalents (RGP10B-E3/73, RGP10BE-E3/53, RGP10BE-E3/73)?

A: All three Vishay parts maintain identical electrical specifications and are active products. The differences are in manufacturing date codes and internal lot traceability (indicated by the suffix designations -E3/73, -E3/53). From an engineering perspective, these parts are interchangeable. Selection may depend on inventory availability and procurement lead times.

Q: Can I use the 1N4934G instead of the RGP10B-M3/73?

A: Yes, with minor electrical variations. The 1N4934G meets the core requirements: 100 V reverse voltage, 1 A average rectified current, and fast recovery speed classification. The forward voltage drop is slightly lower (1.2 V versus 1.3 V), and reverse recovery time is marginally longer (200 ns versus 150 ns). These differences are within acceptable tolerances for general-purpose rectification. Both parts use DO-204AL (DO-41) packaging.

Q: What is the advantage of using EGP10B over the RGP10B-M3/73?

A: The EGP10B offers superior switching performance with a reverse recovery time of 50 ns (compared to 150 ns) and lower forward voltage drop of 0.95 V @ 1 A (compared to 1.3 V). These characteristics reduce switching losses and heat generation in high-frequency applications. The EGP10B is suitable for designs requiring enhanced efficiency, though it is not required for standard general-purpose rectification.

Q: Can I use the MUR210RLG as a substitute?

A: Yes, the MUR210RLG is functionally compatible. It maintains 100 V reverse voltage and fast recovery speed classification. However, the MUR210RLG is rated for 2 A average rectified current (versus 1 A for the main part) and exhibits lower reverse leakage current (2 µA versus 5 µA). The MUR210RLG should be selected only when circuit design permits or requires higher current capacity. It is supplied in axial packaging.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitute parts are ROHS3 compliant, matching the compliance status of the RGP10B-M3/73. The 1N6077 is the only exception, classified as RoHS non-compliant. Verify compliance requirements for your specific application before selecting this part.

Q: What packaging options are available for substitutes?

A: Most substitutes are available in DO-204AL (DO-41) axial through-hole packaging, matching the main part. The 1N6077 and MUR210RLG are supplied in axial format without the DO-204AL designation. All parts are through-hole mounted and compatible with standard PCB assembly processes for axial components.

Q: Which substitute offers the best inventory availability?

A: The EGP10B (Fairchild Semiconductor) has the highest inventory level at 66,152 pcs. Among Vishay parametric equivalents, RGP10BE-E3/53 has 887 pcs in stock. For Taiwan Semiconductor Corporation alternatives, 1N4934G has 1,573 pcs available. Inventory levels should be verified with your supplier for current availability.

Q: Can I mix different substitute parts in the same circuit?

A: Yes, all recommended substitutes are functionally compatible and can be used interchangeably within the same circuit. However, for consistency in manufacturing and quality control, it is recommended to standardize on a single part number per design revision. If multiple part numbers are used, ensure that electrical parameter variations (forward voltage drop, reverse recovery time) do not impact circuit performance.

Q: What is the operating temperature range for substitute parts?

A: Operating temperature ranges vary among substitutes. The RGP10B-M3/73 operates from -65°C to 175°C. Vishay parametric equivalents match this range. The 1N4934G and 1N4934G-T operate from -55°C to 150°C (narrower range). The EGP10B operates from -65°C to 150°C. The FR102G variants operate from -55°C to 150°C. The 1N6077 operates from -65°C to 155°C. The MUR210RLG operates from -65°C to 175°C. Verify that the selected substitute meets your application's temperature requirements.

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