SF4005-TAP Equivalent & Substitute Parts

Part Overview

The SF4005-TAP is a 600V, 1A avalanche diode manufactured by Vishay General Semiconductor - Diodes Division in SOD-57 through-hole axial packaging. This component is classified as an active product and is RoHS3 compliant. The SF4005-TAP serves as a fast recovery rectifier diode suitable for general-purpose rectification applications requiring 600V reverse voltage rating and 1A average rectified current capacity.

Substitute parts are identified based on matching electrical specifications: 600V DC reverse voltage rating, 1A average rectified current, fast recovery characteristics (≤500ns for currents >200mA), and through-hole mounting configuration. Equivalent components may differ in forward voltage characteristics, reverse recovery time, reverse leakage current, and physical package form factor while maintaining functional compatibility within the specified electrical parameters.

Key Parameters

Parameter	SF4005-TAP Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.7 @ 1 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Reverse Recovery Time (trr)	75	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Mounting Type	Through Hole	-
Operating Temperature - Junction	-55°C ~ 175°C	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the SF4005-TAP are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 600V
Current - Average Rectified (Io): 1A
Mounting Type: Through Hole
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Parameters:

Reverse Recovery Time (trr): 45ns to 80ns
Current - Reverse Leakage @ Vr: 1µA to 5µA @ 600V
Operating Temperature - Junction: Minimum -50°C, Maximum 175°C
RoHS3 Compliance: Required
REACH Status: Unaffected

Package Form Factor Variations: Substitute parts may be supplied in different through-hole axial package designations (SOD-57, DO-204AL, DO-41) and different packaging formats (Tape & Box, Cut Tape, Bulk), provided the electrical specifications remain within the defined parameters.

The following five substitute parts meet all primary and secondary criteria:

MUR160G (onsemi) - Bulk packaging
MUR160RLG (onsemi) - Cut Tape packaging
STTH1L06 (STMicroelectronics) - Cut Tape packaging
STTH1L06RL (STMicroelectronics) - Cut Tape packaging
STTH1R06RL (STMicroelectronics) - Cut Tape packaging
UF4005 (Fairchild Semiconductor) - Standard packaging

Parameter Comparison

Parameter	SF4005-TAP	MUR160G	MUR160RLG	STTH1L06	STTH1L06RL	STTH1R06RL	UF4005
Manufacturer	Vishay	onsemi	onsemi	STMicroelectronics	STMicroelectronics	STMicroelectronics	Fairchild
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 1 A	1.25 V @ 1 A	1.25 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A	1.7 V @ 1 A	1.7 V @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Reverse Recovery Time (trr)	75 ns	75 ns	75 ns	80 ns	80 ns	45 ns	75 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	1 µA @ 600 V	1 µA @ 600 V	1 µA @ 600 V	5 µA @ 600 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	SOD-57, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-55°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	175°C (Max)	175°C (Max)	175°C (Max)	-50°C ~ 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not Specified
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain active product status and are suitable for direct replacement of the SF4005-TAP within the specified electrical parameters. Selection among substitute parts should be based on the following factors:

RoHS3 Compliance: MUR160G, MUR160RLG, STTH1L06, STTH1L06RL, and STTH1R06RL are explicitly RoHS3 compliant. UF4005 does not specify RoHS3 compliance status. Applications requiring RoHS3 certification should exclude UF4005.

Forward Voltage Characteristics: MUR160G and MUR160RLG feature lower forward voltage (1.25V @ 1A) compared to the SF4005-TAP (1.7V @ 1A), resulting in reduced power dissipation. STTH1L06 and STTH1L06RL provide intermediate forward voltage (1.3V @ 1A). STTH1R06RL and UF4005 match the original forward voltage specification (1.7V @ 1A).

Reverse Recovery Time: STTH1R06RL offers the fastest reverse recovery time (45ns), compared to 75ns for the SF4005-TAP, MUR160G, MUR160RLG, and UF4005. STTH1L06 and STTH1L06RL specify 80ns reverse recovery time.

Reverse Leakage Current: STTH1L06, STTH1L06RL, and STTH1R06RL specify lower reverse leakage current (1µA @ 600V) compared to the SF4005-TAP (5µA @ 600V). MUR160G, MUR160RLG, and UF4005 match the original leakage specification (5µA @ 600V).

Operating Temperature Range: MUR160G and MUR160RLG support extended low-temperature operation (-65°C minimum) compared to the SF4005-TAP (-55°C minimum). UF4005 supports -50°C minimum. STTH1L06, STTH1L06RL, and STTH1R06RL specify maximum junction temperature only (175°C).

Packaging and Availability: MUR160RLG offers the highest inventory availability (95,200 pieces) in Cut Tape format. STTH1L06 provides 17,400 pieces in Cut Tape format. All substitute parts are available in through-hole axial configurations compatible with PCB layouts designed for the SF4005-TAP.

Frequently Asked Questions (FAQ)

Q: Can I directly replace SF4005-TAP with any of the listed substitute parts?

A: All listed substitute parts meet the primary electrical specifications (600V reverse voltage, 1A average rectified current, fast recovery characteristics, through-hole mounting). Physical package form factors differ (SOD-57 versus DO-41/DO-204AL), requiring verification of PCB footprint compatibility. Consult PCB layout documentation to confirm lead spacing and hole diameter compatibility.

Q: What is the difference between SOD-57 and DO-41 packages?

A: SOD-57 and DO-41 are both through-hole axial package designations for diodes. The SF4005-TAP uses SOD-57 packaging. Substitute parts use DO-204AL or DO-41 designations. Physical dimensions and lead spacing differ between these package types. PCB footprint compatibility must be verified before substitution.

Q: Which substitute part has the lowest power dissipation?

A: MUR160G and MUR160RLG feature the lowest forward voltage specification (1.25V @ 1A), resulting in the lowest power dissipation at rated current. Power dissipation is calculated as P = Vf × If. At 1A, MUR160G/MUR160RLG dissipate 1.25W compared to 1.7W for the SF4005-TAP.

Q: Are all substitute parts RoHS3 compliant?

A: MUR160G, MUR160RLG, STTH1L06, STTH1L06RL, and STTH1R06RL are explicitly RoHS3 compliant. UF4005 does not specify RoHS3 compliance status in the provided data. Applications requiring RoHS3 certification should use one of the five explicitly compliant alternatives.

Q: What is reverse recovery time and why does it matter?

A: Reverse recovery time (trr) is the interval required for a diode to transition from forward conduction to reverse blocking when the applied voltage reverses polarity. Shorter reverse recovery time reduces switching losses and electromagnetic interference in high-frequency applications. STTH1R06RL specifies 45ns trr, the fastest among all listed parts.

Q: Can I use a substitute part with different reverse leakage current specifications?

A: Yes. Reverse leakage current specifications range from 1µA to 5µA @ 600V across all listed parts. Lower leakage current (1µA) provides superior performance in high-impedance circuits and reduces standby power consumption. Higher leakage current (5µA) is acceptable in most general-purpose rectification applications.

Q: Which substitute part offers the best low-temperature performance?

A: MUR160G and MUR160RLG support operation at -65°C minimum junction temperature, compared to -55°C for the SF4005-TAP. These parts are suitable for applications requiring extended low-temperature operation. UF4005 supports -50°C minimum. STTH1L06, STTH1L06RL, and STTH1R06RL specify maximum temperature only.

Q: What packaging formats are available for substitute parts?

A: MUR160G is supplied in Bulk packaging. MUR160RLG, STTH1L06, STTH1L06RL, and STTH1R06RL are supplied in Cut Tape (CT) format. UF4005 packaging format is not specified. Cut Tape format is suitable for automated assembly processes. Bulk packaging is suitable for manual assembly or reel-fed automated equipment.

Q: Are there any compliance or certification differences between substitute parts?

A: All substitute parts are RoHS3 compliant (except UF4005, which does not specify compliance) and REACH Unaffected. All parts carry EAR99 export classification and HTSUS code 8541.10.0080. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for Vishay and STMicroelectronics parts, and Not Applicable for onsemi parts.

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