FR103G Equivalent & Substitute Parts

Part Overview

The FR103G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 200 V DC reverse voltage and 1 A average rectified current in a DO-204AL (DO-41) through-hole axial package. This component is classified as a fast recovery diode with a reverse recovery time of 150 ns, suitable for standard rectification applications requiring moderate voltage and current ratings.

The FR103G is currently active in product status with 1061 pieces in stock. Equivalent and substitute parts are identified to provide alternative sourcing options for procurement flexibility, inventory management, or when the primary part becomes unavailable from specific suppliers or in particular packaging configurations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Package / Case	DO-204AL, DO-41, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the FR103G is determined by matching the following critical electrical and mechanical parameters:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 1 A minimum
Package / Case: DO-204AL, DO-41, Axial configuration
Mounting Type: Through Hole

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Operating Temperature Range: -55°C to 150°C minimum

Substitute parts are grouped into two categories:

Parametric Equivalents maintain identical electrical specifications (200 V, 1 A, 150 ns reverse recovery time) and differ only in packaging format (Tape & Reel versus Cut Tape) or minor manufacturing variants. These parts are direct functional replacements.

Similar Parts meet the core voltage and current requirements and package specifications but may exhibit variations in forward voltage drop or reverse recovery time within acceptable operating ranges for general-purpose rectification applications. These parts are functionally compatible for the same circuit applications.

Parameter Comparison

Parameter	FR103G	FR103G A0G	FR103G R0G	EGP10D
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Fairchild Semiconductor
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	1.3 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A	950 mV @ 1 A
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns	50 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
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-65 to 150°C
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Bulk
Product Status	Active	Active	Discontinued at DiGi Electronics	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified

Engineering Selection Recommendations

FR103G A0G is a parametric equivalent suitable for direct substitution. This part maintains identical electrical specifications and RoHS3 compliance. The primary difference is packaging format: Cut Tape (CT) versus the original Tape & Reel (TR) format. Selection of FR103G A0G is appropriate when Cut Tape packaging meets procurement or assembly requirements. Inventory availability is 2510 pieces.

FR103G R0G is a parametric equivalent with identical electrical specifications and RoHS3 compliance, packaged in Tape & Reel format matching the original FR103G. However, this part is listed as discontinued at DiGi Electronics. Selection of FR103G R0G is limited to applications where existing inventory from alternative suppliers is available. Inventory availability is 11005 pieces from current stock.

EGP10D manufactured by Fairchild Semiconductor is a similar part meeting core voltage (200 V), current (1 A), and package (DO-204AL, DO-41) specifications. This part exhibits superior performance characteristics with lower forward voltage drop (950 mV versus 1.3 V) and faster reverse recovery time (50 ns versus 150 ns). EGP10D is suitable for applications where improved switching performance is beneficial. RoHS compliance status is not specified in available data. Inventory availability is 1420 pieces.

Selection between these alternatives depends on packaging requirements, supplier availability, and performance optimization needs for the specific application circuit.

Frequently Asked Questions (FAQ)

Q: Can FR103G A0G be used as a direct replacement for FR103G?

A: Yes. FR103G A0G is a parametric equivalent with identical electrical specifications (200 V, 1 A, 150 ns reverse recovery time) and RoHS3 compliance. The only difference is packaging format: Cut Tape versus Tape & Reel. Both are through-hole DO-204AL (DO-41) axial packages suitable for the same circuit applications.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for automated assembly equipment. Cut Tape (CT) packaging supplies components on tape segments cut to specific lengths, suitable for manual assembly or smaller production runs. Both formats contain identical components in the same DO-204AL (DO-41) package.

Q: Is FR103G R0G still available for new designs?

A: FR103G R0G is listed as discontinued at DiGi Electronics. While 11005 pieces are in current stock from available inventory, this part should not be selected for new designs requiring long-term supply assurance. FR103G or FR103G A0G are recommended for new applications.

Q: How does EGP10D differ from FR103G?

A: EGP10D meets the same voltage (200 V) and current (1 A) ratings and uses the same DO-204AL (DO-41) package. However, EGP10D exhibits lower forward voltage drop (950 mV versus 1.3 V at 1 A) and faster reverse recovery time (50 ns versus 150 ns). These characteristics result in reduced power dissipation and improved switching performance. EGP10D is suitable for applications where these performance improvements are beneficial.

Q: Are all substitute parts RoHS3 compliant?

A: FR103G, FR103G A0G, and FR103G R0G are confirmed ROHS3 compliant. EGP10D RoHS compliance status is not specified in available technical data. Verification of EGP10D compliance status is required for applications with mandatory RoHS requirements.

Q: Can these diodes be used interchangeably in existing circuit boards?

A: Yes, all substitute parts use the same DO-204AL (DO-41) through-hole axial package with identical pin configuration and spacing. Physical board layout compatibility is maintained across all listed parts. Electrical compatibility is confirmed for all parts meeting the 200 V, 1 A, and -55°C to 150°C operating range specifications.

Q: What is the operating temperature range for these diodes?

A: FR103G, FR103G A0G, and FR103G R0G operate from -55°C to 150°C junction temperature. EGP10D operates from -65°C to 150°C junction temperature, providing a wider low-temperature operating range. Selection of EGP10D is appropriate for applications requiring operation below -55°C.

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