Equivalent & Substitute Parts for 1F3G-TP

Part Overview

The 1F3G-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 an R-1 axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The diode features fast recovery characteristics with a reverse recovery time of 150 ns and operates across a junction temperature range of -55°C to 150°C.

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
Mounting Type	Through Hole	-
Package / Case	R-1, Axial	-
Operating Temperature - Junction	-55°C ~ 150°C	-

Substitute Part Grouping Explanation

Substitution of the 1F3G-TP is determined by electrical and mechanical parameter equivalence. The primary substitution criteria are:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 1 A minimum
Voltage - Forward (Vf) (Max) @ If: 1.3 V or lower @ 1 A
Reverse Recovery Time (trr): 150 ns or faster
Current - Reverse Leakage @ Vr: 5 µA or lower @ 200 V

Mechanical Parameters:

Mounting Type: Through Hole
Package / Case: R-1, Axial

The substitute part 1F3 manufactured by SMC Diode Solutions meets all specified electrical and mechanical parameters, with identical voltage ratings, current capacity, forward voltage characteristics, and recovery time specifications. The part maintains the same R-1 axial through-hole package configuration, ensuring mechanical compatibility in existing circuit board layouts.

Parameter Comparison

Parameter	1F3G-TP (Micro Commercial Co)	1F3 (SMC Diode Solutions)	Match Status
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	Equivalent
Current - Average Rectified (Io)	1 A	1 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1.3 V @ 1 A	Equivalent
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Equivalent
Reverse Recovery Time (trr)	150 ns	150 ns	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 200 V	5 µA @ 200 V	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	R-1, Axial	R-1, Axial	Equivalent
Operating Temperature - Junction	-55°C ~ 150°C	-65°C ~ 150°C	Substitute Exceeds Range
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Obsolete	Active	Substitute Active

Engineering Selection Recommendations

The 1F3 manufactured by SMC Diode Solutions is a direct electrical and mechanical equivalent to the obsolete 1F3G-TP. Both components are ROHS3 compliant and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited), indicating equivalent handling and storage requirements.

The 1F3 substitute part is currently in active production status with 831 pieces available in inventory, providing supply chain continuity. The substitute maintains all critical electrical specifications including reverse voltage rating, forward current capacity, forward voltage drop, and reverse recovery time characteristics.

The operating temperature range of the 1F3 (-65°C ~ 150°C) exceeds the original 1F3G-TP specification (-55°C ~ 150°C), providing extended low-temperature performance capability. This expanded range does not introduce incompatibility and represents an enhancement for applications requiring operation at lower temperatures.

Both parts are packaged in R-1 axial through-hole configuration, permitting direct mechanical substitution without circuit board layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 1F3 directly replace the 1F3G-TP in existing designs?

A: Yes. The 1F3 meets all electrical and mechanical specifications of the 1F3G-TP. Both components share identical voltage ratings (200 V), current capacity (1 A), forward voltage characteristics (1.3 V @ 1 A), reverse recovery time (150 ns), and R-1 axial through-hole package configuration. Direct substitution is supported without circuit modifications.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: Voltage - DC Reverse (Vr) (Max) of 200 V, Current - Average Rectified (Io) of 1 A, Voltage - Forward (Vf) (Max) @ If of 1.3 V @ 1 A, Reverse Recovery Time (trr) of 150 ns, and Current - Reverse Leakage @ Vr of 5 µA @ 200 V. The 1F3 meets all these parameters.

Q: Are there packaging differences between the 1F3G-TP and 1F3?

A: Both components use R-1 axial through-hole packaging. The 1F3G-TP is supplied in standard packaging, while the 1F3 is supplied in Tape & Box (TB) format. Both configurations are compatible with through-hole assembly processes and circuit board layouts designed for R-1 axial packages.

Q: What is the difference in operating temperature range?

A: The 1F3G-TP operates from -55°C to 150°C junction temperature, while the 1F3 operates from -65°C to 150°C. The 1F3 provides an extended low-temperature capability of 10°C additional margin. Both parts meet the original specification range, and the extended range of the substitute does not create compatibility issues.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1F3G-TP and 1F3 are ROHS3 compliant and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited), ensuring equivalent environmental compliance and handling requirements.

Q: Why is the 1F3G-TP classified as obsolete?

A: The 1F3G-TP is listed as obsolete by the manufacturer, indicating discontinued production. The 1F3 from SMC Diode Solutions is an active production equivalent that provides continued availability for this rectifier diode specification.

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