F1T2G R0G Equivalent & Substitute Parts

Part Overview

The F1T2G R0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 1 A average rectified current in a through-hole TS-1 axial package. This component is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives for ongoing design support and procurement requirements. The part operates across a junction temperature range of -55°C to 150°C and meets ROHS3 compliance standards.

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
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Capacitance @ Vr, F	15	pF @ 4V, 1MHz
Mounting Type	Through Hole	-
Package / Case	T-18, Axial	-
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	-
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	-

Substitute Part Grouping Explanation

Substitute parts for the F1T2G R0G are identified based on electrical parameter equivalence and mechanical compatibility. The substitution criteria are strictly limited to the following parameters:

Voltage - DC Reverse (Vr) (Max): 100 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 @ 100 V
Capacitance @ Vr, F: 15 pF @ 4V, 1MHz
Mounting Type: Through Hole
Package / Case: T-18, Axial
Operating Temperature - Junction: -55°C to 150°C
Technology: Standard
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Parts meeting all these parameters are classified as direct equivalents or parametric equivalents. Additional qualifications such as automotive grade or AEC-Q101 certification represent enhanced variants suitable for specific application requirements but do not disqualify substitution in standard applications.

Parameter Comparison

Parameter	F1T2G R0G (Main)	F1T2G (Direct)	F1T2GH (Parametric)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	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
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V
Capacitance @ Vr, F	15 pF @ 4V, 1MHz	15 pF @ 4V, 1MHz	15 pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	T-18, Axial	T-18, Axial	T-18, Axial
Supplier Device Package	TS-1	TS-1	TS-1
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Technology	Standard	Standard	Standard
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Product Status	Discontinued at DiGi Electronics	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Grade	Standard	Standard	Automotive
Qualification	-	-	AEC-Q101

Engineering Selection Recommendations

F1T2G (Direct Equivalent)

The F1T2G is an active direct equivalent to the discontinued F1T2G R0G. All electrical and mechanical parameters are identical. This part is the primary replacement for applications requiring standard-grade rectifier diodes with 100 V reverse voltage and 1 A average rectified current ratings. The F1T2G maintains full compatibility with existing circuit designs and PCB layouts.

F1T2GH (Parametric Equivalent with Automotive Qualification)

The F1T2GH is a parametric equivalent offering identical electrical performance and mechanical compatibility. This variant includes automotive-grade qualification and AEC-Q101 certification, making it suitable for automotive and high-reliability applications. Selection of the F1T2GH is appropriate when automotive compliance or enhanced reliability documentation is required by design specifications or customer requirements.

Both substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and REACH unaffected status, ensuring regulatory alignment with the original F1T2G R0G.

Frequently Asked Questions (FAQ)

Q: Can the F1T2G be used as a direct replacement for the F1T2G R0G?

A: Yes. The F1T2G is a direct equivalent with identical electrical parameters, including 100 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage drop, 150 ns reverse recovery time, and identical package configuration (T-18 axial, TS-1). The F1T2G is currently active in production, whereas the F1T2G R0G is discontinued.

Q: What is the difference between F1T2G and F1T2GH?

A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. The F1T2GH includes automotive-grade qualification and AEC-Q101 certification, which the standard F1T2G does not carry. Selection between these parts depends on whether automotive compliance documentation is required for the application.

Q: Are the F1T2G and F1T2GH pin-compatible with the F1T2G R0G?

A: Yes. All three parts use the T-18 axial through-hole package with identical lead configuration and spacing. No PCB layout modifications are required when substituting either equivalent part.

Q: Can the F1T2GH be used in non-automotive applications?

A: Yes. The F1T2GH meets all electrical and mechanical requirements for standard applications. The automotive qualification and AEC-Q101 certification represent additional compliance attributes that do not restrict use in non-automotive circuits.

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

A: Both F1T2G and F1T2GH operate across a junction temperature range of -55°C to 150°C, identical to the original F1T2G R0G.

Q: Are there any compliance differences between the substitute parts and the original?

A: All three parts maintain ROHS3 compliance, MSL 1 (unlimited moisture sensitivity), and REACH unaffected status. The F1T2GH includes additional automotive-grade qualification and AEC-Q101 certification.

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