1N4935GP-TP Equivalent & Substitute Parts

Part Overview

The 1N4935GP-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as Active and RoHS3 Compliant. Substitute parts are identified based on matching electrical specifications and mechanical compatibility within the rectifier diode category. Alternative models become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or equivalent performance requirements can be met through functionally identical components.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.2	V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	200	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature - Junction	-55°C ~ 150°C	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the 1N4935GP-TP are qualified based on the following critical parameters:

Voltage Rating: All substitutes maintain 200 V DC reverse voltage (Vr) maximum
Current Rating: All substitutes maintain 1 A average rectified current (Io)
Speed Classification: All substitutes meet Fast Recovery specification (≤ 500ns, > 200mA)
Reverse Leakage: All substitutes maintain 5 µA @ 200 V maximum
Package Compatibility: All substitutes use DO-204AL (DO-41) axial through-hole package
Mounting Type: All substitutes are through-hole mounted
Compliance: All substitutes maintain RoHS3 compliance and EAR99 ECCN classification

Substitutes are grouped into two categories: Similar Manufacturer Part (different packaging) and Parametric Equivalents (same electrical performance, different manufacturers).

Parameter Comparison

Parameter	1N4935GP-TP (Main)	EGP10D	FR103G A0G	FR103G R0G
Manufacturer	Micro Commercial Co	Fairchild Semiconductor	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	950 mV @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A
Reverse Recovery Time (trr)	200 ns	50 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-55°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Packaging Type	Tape & Reel (TR)	Bulk	Cut Tape (CT)	Tape & Reel (TR)
Product Status	Active	Active	Active	Discontinued at DiGi Electronics
RoHS Status	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute: EGP10D (Fairchild Semiconductor)

The EGP10D is a direct electrical equivalent with identical voltage and current ratings. This part offers superior reverse recovery time performance (50 ns versus 200 ns), resulting in lower switching losses. The EGP10D maintains 5 µA reverse leakage and operates across -65°C to 150°C, providing extended low-temperature performance. Packaging is supplied in Bulk format. Product status is Active.

Secondary Substitute: FR103G A0G (Taiwan Semiconductor Corporation)

The FR103G A0G meets all critical electrical parameters with 200 V reverse voltage and 1 A current rating. Reverse recovery time is 150 ns. This part is supplied in Cut Tape (CT) packaging and maintains RoHS3 compliance. Product status is Active with 2510 units in stock.

Tertiary Substitute: FR103G R0G (Taiwan Semiconductor Corporation)

The FR103G R0G is electrically identical to FR103G A0G with 200 V reverse voltage, 1 A current rating, and 150 ns reverse recovery time. This part is supplied in Tape & Reel (TR) packaging, matching the original packaging format of 1N4935GP-TP. Product status is Discontinued at DiGi Electronics; however, 11005 units remain in stock. RoHS3 compliance is maintained.

All three substitutes are through-hole mounted in DO-204AL (DO-41) axial packages and maintain compliance with EAR99 ECCN and HTSUS 8541.10.0080 classifications.

Frequently Asked Questions (FAQ)

Q: Can the EGP10D replace the 1N4935GP-TP in all applications?

A: The EGP10D meets all critical electrical specifications: 200 V reverse voltage, 1 A average rectified current, 5 µA reverse leakage, and fast recovery classification. Both components use identical DO-41 through-hole packages. The EGP10D exhibits lower reverse recovery time (50 ns versus 200 ns), which reduces switching losses and may improve circuit efficiency. Packaging format differs (Bulk versus Tape & Reel), which affects procurement and assembly processes but not electrical performance.

Q: What is the difference between FR103G A0G and FR103G R0G?

A: Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications: 200 V reverse voltage, 1 A current rating, 150 ns reverse recovery time, and 5 µA reverse leakage. The primary difference is packaging format: FR103G A0G is supplied in Cut Tape (CT), while FR103G R0G is supplied in Tape & Reel (TR). FR103G R0G matches the original 1N4935GP-TP packaging format. FR103G R0G is discontinued at DiGi Electronics but maintains higher inventory availability.

Q: Are all substitutes RoHS3 compliant?

A: The 1N4935GP-TP, FR103G A0G, and FR103G R0G are explicitly RoHS3 compliant. The EGP10D RoHS status is not specified in the provided data. Compliance verification with the EGP10D should be confirmed through the manufacturer datasheet if RoHS3 certification is a requirement.

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

A: The 1N4935GP-TP, FR103G A0G, and FR103G R0G operate across -55°C to 150°C junction temperature. The EGP10D extends the low-temperature range to -65°C to 150°C, providing 10°C additional margin at minimum operating temperature.

Q: How does reverse recovery time affect circuit performance?

A: Reverse recovery time (trr) determines the duration required for a diode to transition from forward conduction to reverse blocking. The 1N4935GP-TP specifies 200 ns trr. The EGP10D provides 50 ns trr, while FR103G variants specify 150 ns trr. Lower reverse recovery time reduces switching losses and electromagnetic interference in high-frequency applications. Selection depends on circuit switching frequency and thermal management requirements.

Q: Can substitutes be mixed in the same assembly?

A: All substitutes maintain identical voltage ratings (200 V), current ratings (1 A), reverse leakage (5 µA @ 200 V), and package form factor (DO-41 through-hole). Mixing substitutes within a single assembly is electrically permissible. However, reverse recovery time variations (50 ns to 200 ns) may introduce minor differences in switching transient behavior. Consistency within a circuit board is recommended for predictable performance.

Q: What packaging considerations apply to each substitute?

A: The 1N4935GP-TP is supplied in Tape & Reel (TR) format for automated assembly. The EGP10D is supplied in Bulk format, requiring manual handling or tape-and-reel conversion. The FR103G A0G is supplied in Cut Tape (CT) format, suitable for semi-automated pick-and-place equipment. The FR103G R0G is supplied in Tape & Reel (TR) format, directly compatible with the original packaging specification. Packaging selection affects procurement lead time, assembly process compatibility, and component cost.

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