SF13G-TP Equivalent & Substitute Parts

Part Overview

The SF13G-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 150 V DC reverse voltage and 1 A average rectified current in a DO-41 through-hole package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations using this component in active production or maintenance applications require equivalent alternatives that maintain electrical and mechanical compatibility while offering active product status and continued supply availability.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	mV
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 150 V
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	-
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-

Substitute Part Grouping Explanation

Substitution eligibility for the SF13G-TP is determined by the following critical parameters:

Voltage Rating: Reverse voltage must equal or exceed 150 V DC
Current Rating: Average rectified current must equal or exceed 1 A
Forward Voltage: Maximum forward voltage at 1 A must not exceed 950 mV
Recovery Characteristics: Fast recovery classification (≤ 500ns for currents > 200mA)
Package Compatibility: DO-41 or DO-204AL axial through-hole package
Temperature Range: Operating junction temperature range must encompass -55°C to 150°C
Compliance: RoHS3 compliance and REACH unaffected status required

All substitute parts listed below meet these electrical and mechanical parameters, enabling direct functional replacement in circuit applications. Differences in reverse leakage current, capacitance, or reverse recovery time within the specified ranges do not preclude substitution.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [mV]	trr [ns]	Ir @ 150V [µA]	Product Status	Package
SF13G-TP	Micro Commercial Co	150	1	950	35	5	Not For New Designs	DO-41
ER101A_R2_00001	Panjit International Inc.	150	1	950	35	1	Active	DO-41
SF13G	Taiwan Semiconductor Corporation	150	1	950	35	5	Active	DO-204AL (DO-41)
SF13G R1G	Taiwan Semiconductor Corporation	150	1	950	35	5	Active	DO-204AL (DO-41)
SF13GH	Taiwan Semiconductor Corporation	150	1	950	35	5	Active	DO-204AL (DO-41)
SF13GHR1G	Taiwan Semiconductor Corporation	150	1	950	35	5	Active	DO-204AL (DO-41)
UG1C-E3/54	Vishay General Semiconductor - Diodes Division	150	1	950	25	5	Active	DO-204AL (DO-41)
UG1C-M3/54	Vishay General Semiconductor - Diodes Division	150	1	950	25	5	Active	DO-204AL (DO-41)

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs and Ongoing Production)

The SF13G R1G and SF13GHR1G from Taiwan Semiconductor Corporation are preferred alternatives. Both maintain identical electrical specifications to the original SF13G-TP while offering active product status. The SF13GHR1G variant includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability. Both parts are available in high inventory quantities (1073 and 670 units respectively).

Secondary Substitutes (Functionally Equivalent)

The ER101A_R2_00001 from Panjit International Inc. provides full electrical equivalence with superior reverse leakage characteristics (1 µA versus 5 µA). This part is actively produced and maintains 830 units in stock.

The UG1C-M3/54 and UG1C-E3/54 from Vishay General Semiconductor offer improved reverse recovery time (25 ns versus 35 ns), resulting in faster switching performance. Both are actively supported with substantial inventory availability (1084 and 955 units respectively).

Compliance and Regulatory Status

All substitute parts maintain RoHS3 compliance and REACH unaffected status, matching the original SF13G-TP regulatory classification. No additional compliance verification is required for direct substitution in existing applications.

Frequently Asked Questions (FAQ)

Q: Can the SF13G-TP be directly replaced with any of the listed substitutes?

A: Yes. All listed substitute parts meet or exceed the electrical and mechanical specifications of the SF13G-TP. Direct pin-for-pin replacement is possible in DO-41 through-hole applications without circuit modification.

Q: What is the significance of the "Not For New Designs" status on the SF13G-TP?

A: This designation indicates the part has reached end-of-life and is no longer recommended for new product development. Existing inventory may be available, but long-term supply cannot be guaranteed. Substitution with active-status alternatives is recommended for production continuity.

Q: Are there differences between SF13G, SF13G R1G, SF13GH, and SF13GHR1G variants?

A: All four variants share identical electrical specifications. The SF13GH and SF13GHR1G variants include AEC-Q101 automotive qualification and automotive-grade designation, making them suitable for automotive applications. The R1G suffix indicates a specific manufacturing revision. Selection depends on application requirements and supply availability.

Q: How do the Vishay UG1C-M3/54 and UG1C-E3/54 differ from other substitutes?

A: Both Vishay parts feature a faster reverse recovery time of 25 ns compared to 35 ns in the original SF13G-TP and most alternatives. This faster switching characteristic may improve efficiency in high-frequency rectification circuits. The UG1C-M3/54 has lower capacitance (7 pF) compared to UG1C-E3/54 (capacitance not specified).

Q: What is the difference between DO-41 and DO-204AL package designations?

A: DO-41 and DO-204AL are equivalent package designations for the same axial through-hole diode package. Both refer to a two-lead axial component with identical physical dimensions and pin spacing. These designations are interchangeable for PCB layout and assembly purposes.

Q: Can I use the ER101A_R2_00001 if my circuit is sensitive to reverse leakage current?

A: Yes. The ER101A_R2_00001 exhibits lower reverse leakage current (1 µA at 150 V) compared to the SF13G-TP (5 µA at 150 V). This characteristic is beneficial in applications where leakage current must be minimized, such as precision analog circuits or high-impedance applications.

Q: Are all substitute parts available in tape and reel packaging?

A: The ER101A_R2_00001, UG1C-E3/54, and UG1C-M3/54 are explicitly specified as tape and reel (TR) packaging. The Taiwan Semiconductor Corporation variants (SF13G, SF13G R1G, SF13GH, SF13GHR1G) do not specify packaging format in the provided data. Confirm packaging availability with the supplier before procurement.

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

A: All substitute parts maintain the same operating junction temperature range as the original SF13G-TP: -55°C to 150°C. No thermal derating or temperature compensation adjustments are required when substituting.

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