Equivalent & Substitute Parts for 1F2G-TP

Part Overview

The 1F2G-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 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 alternatives for continued system support and procurement. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while meeting applicable 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 @ 1	V @ A
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Mounting Type	Through Hole	—
Package / Case	R-1, Axial	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 1F2G-TP is determined by equivalence across the following critical parameters:

Electrical Specifications:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 1 A minimum
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A maximum
Reverse Recovery Time (trr): 150 ns maximum
Current - Reverse Leakage @ Vr: 5 µA @ 100 V maximum

Mechanical and Package Specifications:

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

Environmental and Compliance:

Operating Temperature - Junction: -55°C to 150°C minimum range
Technology: Standard
RoHS Status: ROHS3 Compliant

The substitute part 1F2 meets all critical electrical parameters and maintains identical package configuration, enabling direct functional replacement in circuit applications.

Parameter Comparison

Parameter	1F2G-TP (Main Part)	1F2 (Substitute)	Match Status
Manufacturer	Micro Commercial Co	SMC Diode Solutions	Different
Voltage - DC Reverse (Vr) (Max)	100 V	100 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 @ 100 V	5 µA @ 100 V	Equivalent
Capacitance @ Vr, F	12 pF @ 4V, 1MHz	15 pF @ 4V, 1MHz	Substitute Higher
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 Extended
Product Status	Obsolete	Active	Substitute Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

The 1F2 from SMC Diode Solutions is a direct functional equivalent to the obsolete 1F2G-TP. Selection of the 1F2 substitute is supported by the following factors:

Electrical Equivalence: All critical electrical parameters match or exceed the original specification, including reverse voltage rating, forward current capacity, forward voltage drop, and reverse recovery characteristics.

Package Compatibility: Both components utilize identical R-1 axial through-hole packaging, enabling direct mechanical and electrical substitution without circuit board modification.

Compliance Status: The 1F2 maintains ROHS3 compliance equivalent to the original part, satisfying regulatory requirements for new procurement and system updates.

Product Availability: The 1F2 is classified as active product status, ensuring continued availability and supply chain stability compared to the obsolete 1F2G-TP.

Temperature Performance: The substitute part extends the lower operating temperature limit to -65°C, providing enhanced thermal performance margin in applications requiring extended temperature range operation.

Frequently Asked Questions (FAQ)

Q: Can the 1F2 be used as a direct replacement for the 1F2G-TP in existing designs?

A: Yes. The 1F2 meets all electrical specifications of the 1F2G-TP and shares identical R-1 axial through-hole packaging. No circuit modifications are required for substitution.

Q: What is the significance of the capacitance difference between the two parts?

A: The 1F2 exhibits 15 pF capacitance compared to 12 pF in the 1F2G-TP, both measured at 4 V and 1 MHz. This 3 pF increase is within typical component variation and does not affect functional performance in standard rectifier applications.

Q: Does the extended temperature range of the 1F2 provide any advantage?

A: The 1F2 operates from -65°C to 150°C compared to -55°C to 150°C for the 1F2G-TP. This extended lower temperature limit provides additional thermal margin for applications operating in cold environments.

Q: Are there any compliance or regulatory differences between the parts?

A: Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications. No compliance barriers exist for substitution.

Q: What packaging format is the 1F2 supplied in?

A: The 1F2 is supplied in Tape & Box (TB) packaging, suitable for both manual and automated assembly processes.

Q: Are the reverse recovery characteristics identical between the two parts?

A: Yes. Both parts exhibit 150 ns reverse recovery time and fast recovery speed classification (≤ 500 ns, > 200 mA), ensuring equivalent switching performance in rectifier circuits.

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