SF10CG-T Equivalent & Substitute Parts

Part Overview

The SF10CG-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 150 V DC reverse voltage and 1 A average rectified current in a DO-41 through-hole package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. Equivalent alternatives maintain identical electrical performance characteristics, while substitute parts provide functional compatibility within specified parameter ranges.

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
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 150 V
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature - Junction	-65°C ~ 150°C	°C

Substitute Part Grouping Explanation

Substitution eligibility for the SF10CG-T is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 150 V minimum
Current - Average Rectified (Io): 1 A minimum
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, or Axial compatible

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: 950 mV @ 1 A or lower
Reverse Recovery Time (trr): 35 ns or lower
Current - Reverse Leakage @ Vr: 10 µA @ 150 V or lower
Operating Temperature - Junction: -65°C minimum, 150°C minimum

Parts are grouped into two categories: MFR Recommended substitutes (manufacturer-designated alternatives) and Parametric Equivalents (parts meeting all electrical specifications). All listed substitutes satisfy the primary substitution criteria and maintain functional compatibility with the SF10CG-T in standard rectification applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	trr [ns]	Ir @ Vr [µA]	Package	Product Status	RoHS Status
SF10CG-T	Diodes Incorporated	150	1	950 @ 1 A	35	10 @ 150 V	DO-41	Obsolete	ROHS3 Compliant
1N6078	Microchip Technology	150	1.3	1.76 @ 18.8 A	30	5 @ 150 V	Axial	Active	RoHS non-compliant
MUR115G	onsemi	150	1	875 @ 1 A	35	2 @ 150 V	Axial	Obsolete	ROHS3 Compliant
UG1C-E3/54	Vishay General Semiconductor - Diodes Division	150	1	950 @ 1 A	25	5 @ 150 V	DO-204AL (DO-41)	Active	ROHS3 Compliant
UG1C-E3/73	Vishay General Semiconductor - Diodes Division	150	1	950 @ 1 A	25	5 @ 150 V	DO-204AL (DO-41)	Active	ROHS3 Compliant
UG1C-M3/54	Vishay General Semiconductor - Diodes Division	150	1	950 @ 1 A	25	5 @ 150 V	DO-204AL (DO-41)	Active	ROHS3 Compliant
EGP10C	Fairchild Semiconductor	150	1	950 @ 1 A	50	5 @ 150 V	DO-204AL (DO-41)	Active	Not specified
EGP10C-E3/54	Vishay General Semiconductor - Diodes Division	150	1	950 @ 1 A	50	5 @ 150 V	DO-204AL (DO-41)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Active Product Status Priority: For new designs and long-term procurement, prioritize parts with Active product status: UG1C-E3/54, UG1C-E3/73, UG1C-M3/54, EGP10C, and EGP10C-E3/54. These parts ensure sustained manufacturer support and availability.

RoHS Compliance Consideration: The SF10CG-T is ROHS3 Compliant. Substitute parts UG1C-E3/54, UG1C-E3/73, UG1C-M3/54, and EGP10C-E3/54 maintain ROHS3 Compliance status. The part 1N6078 is RoHS non-compliant and should be selected only when RoHS compliance is not a design requirement.

Package Compatibility: The SF10CG-T uses DO-41 packaging. Direct package equivalents include UG1C-E3/54, UG1C-E3/73, UG1C-M3/54, EGP10C, and EGP10C-E3/54, all specified as DO-204AL (DO-41). The part 1N6078 uses Axial packaging and MUR115G uses Axial packaging; these require mechanical layout verification for board-level compatibility.

Electrical Performance Matching: Parts UG1C-E3/54, UG1C-E3/73, UG1C-M3/54, EGP10C, and EGP10C-E3/54 provide identical forward voltage (950 mV @ 1 A) and current ratings (1 A) to the SF10CG-T. MUR115G offers superior reverse leakage performance (2 µA vs. 10 µA) and lower forward voltage (875 mV @ 1 A). The part 1N6078 supports higher current (1.3 A) but exhibits higher forward voltage at elevated current levels.

Frequently Asked Questions (FAQ)

Q: Can the SF10CG-T be directly replaced with any of the listed substitutes?

A: Direct replacement depends on package and compliance requirements. Parts UG1C-E3/54, UG1C-E3/73, UG1C-M3/54, EGP10C, and EGP10C-E3/54 are direct DO-41 package equivalents. Parts 1N6078 and MUR115G use Axial packaging and require mechanical layout verification. All listed parts meet the electrical specifications for functional substitution.

Q: What is the difference between MFR Recommended and Parametric Equivalent classifications?

A: MFR Recommended substitutes are manufacturer-designated alternatives with explicit cross-reference documentation. Parametric Equivalents meet all electrical specifications but may not carry formal manufacturer cross-reference status. Both categories satisfy the substitution criteria for the SF10CG-T.

Q: Does reverse recovery time affect circuit performance?

A: Reverse recovery time (trr) is a secondary parameter that influences switching behavior in high-frequency applications. The SF10CG-T specifies 35 ns. Substitutes with lower trr values (UG1C-E3/54, UG1C-E3/73, UG1C-M3/54 at 25 ns) provide improved switching characteristics. Parts with higher trr values (EGP10C, EGP10C-E3/54 at 50 ns) remain functionally compatible for standard rectification.

Q: Is RoHS compliance mandatory for all applications?

A: RoHS compliance is application-dependent. If RoHS compliance is required, select from UG1C-E3/54, UG1C-E3/73, UG1C-M3/54, MUR115G, or EGP10C-E3/54. The part 1N6078 is RoHS non-compliant and should be avoided in RoHS-regulated applications.

Q: What packaging options are available?

A: The SF10CG-T uses DO-41 through-hole axial packaging. Equivalent parts maintain this package type: UG1C-E3/54 (Tape & Reel), UG1C-E3/73 (standard), UG1C-M3/54 (Tape & Reel), EGP10C (Bulk), and EGP10C-E3/54 (Cut Tape). Parts 1N6078 and MUR115G use Axial packaging without DO-41 designation and require mechanical verification.

Q: Which substitute offers the best overall performance match?

A: UG1C-E3/54, UG1C-E3/73, and UG1C-M3/54 provide the closest electrical match with identical forward voltage (950 mV @ 1 A), lower reverse recovery time (25 ns vs. 35 ns), and Active product status with ROHS3 Compliance. These parts are recommended for new designs requiring direct SF10CG-T replacement.

Q: Can higher current-rated parts like 1N6078 (1.3 A) be used in place of the 1 A SF10CG-T?

A: Yes, higher current-rated parts are functionally compatible in applications where the SF10CG-T operates at or below 1 A. The 1N6078 provides additional current margin. However, verify package compatibility (Axial vs. DO-41) and RoHS compliance requirements before selection.

Q: What is the inventory status for these substitutes?

A: All listed substitutes maintain active inventory: 1N6078 (965 Pcs), MUR115G (4300 Pcs), UG1C-E3/54 (955 Pcs), UG1C-E3/73 (1008 Pcs), UG1C-M3/54 (1084 Pcs), EGP10C (35827 Pcs), and EGP10C-E3/54 (10505 Pcs). EGP10C offers the highest inventory availability.

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