Equivalent & Substitute Parts for 10ETF12S

Part Overview

The 10ETF12S is a general-purpose fast recovery rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This component is rated for 1200 V DC reverse voltage with a 10 A average rectified current capacity and features a fast recovery time of 310 ns. The device is packaged in a TO-263AB (D2PAK) surface mount configuration with two leads plus a tab for thermal management.

The 10ETF12S is classified as obsolete. Equivalent substitute parts with active product status are available to support ongoing design requirements and procurement needs for applications requiring 1200 V, 10 A fast recovery rectifier diodes in the TO-263AB package.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1200	V
Current - Average Rectified (Io)	10	A
Voltage - Forward (Vf) (Max) @ If	1.33 @ 10 A	V
Reverse Recovery Time (trr)	310	ns
Current - Reverse Leakage @ Vr	100 @ 1200 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-40 to 150	°C
Technology	Standard	—

Substitute Part Grouping Explanation

Substitute parts for the 10ETF12S are determined by equivalence across all critical electrical and mechanical parameters. The following parameters establish substitution eligibility:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 1200 V
Current - Average Rectified (Io): 10 A
Voltage - Forward (Vf) (Max) @ If: 1.33 V @ 10 A
Reverse Recovery Time (trr): 310 ns
Current - Reverse Leakage @ Vr: 100 µA @ 1200 V
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters:

Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount
Operating Temperature - Junction: -40°C to 150°C

The substitute parts VS-10ETF12STRL-M3 and VS-10ETF12STRR-M3 are parametric equivalents that match all electrical and mechanical specifications of the 10ETF12S. The primary distinction between the main part and substitutes is product status and packaging format (bulk versus tape & reel), along with regulatory compliance improvements.

Parameter Comparison

Parameter	10ETF12S	VS-10ETF12STRL-M3	VS-10ETF12STRR-M3
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	1200 V	1200 V	1200 V
Current - Average Rectified (Io)	10 A	10 A	10 A
Voltage - Forward (Vf) (Max) @ If	1.33 V @ 10 A	1.33 V @ 10 A	1.33 V @ 10 A
Reverse Recovery Time (trr)	310 ns	310 ns	310 ns
Current - Reverse Leakage @ Vr	100 µA @ 1200 V	100 µA @ 1200 V	100 µA @ 1200 V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-40°C to 150°C	-40°C to 150°C	-40°C to 150°C
Technology	Standard	Standard	Standard
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

The 10ETF12S is an obsolete product. For new designs and ongoing procurement, the substitute parts VS-10ETF12STRL-M3 and VS-10ETF12STRR-M3 are direct parametric equivalents with active product status from the same manufacturer.

Key Selection Factors:

Product Status: Both substitute parts carry active product status, ensuring long-term availability and continued manufacturing support. The 10ETF12S, classified as obsolete, may face supply constraints and eventual discontinuation.

Regulatory Compliance: The substitute parts VS-10ETF12STRL-M3 and VS-10ETF12STRR-M3 are ROHS3 compliant, whereas the 10ETF12S is RoHS non-compliant. This distinction is significant for applications subject to RoHS directives and environmental regulations.

Packaging Format: The 10ETF12S is supplied in bulk packaging. The substitute parts are supplied in Tape & Reel (TR) format, which is standard for automated assembly processes and high-volume production environments.

Electrical and Mechanical Equivalence: All three parts share identical electrical specifications (1200 V reverse voltage, 10 A average rectified current, 1.33 V forward voltage at 10 A, 310 ns reverse recovery time, 100 µA reverse leakage current) and mechanical specifications (TO-263AB package, surface mount configuration, -40°C to 150°C operating temperature range).

For applications requiring the 10ETF12S, either VS-10ETF12STRL-M3 or VS-10ETF12STRR-M3 provides direct functional replacement with improved regulatory compliance and active product support.

Frequently Asked Questions (FAQ)

Q: Can VS-10ETF12STRL-M3 or VS-10ETF12STRR-M3 be used as direct replacements for 10ETF12S in existing designs?

A: Yes. Both substitute parts are parametric equivalents with identical electrical and mechanical specifications. The 1200 V reverse voltage rating, 10 A average rectified current, forward voltage characteristics, reverse recovery time, and TO-263AB package configuration are identical across all three parts. Direct substitution is supported at the component level.

Q: What is the difference between VS-10ETF12STRL-M3 and VS-10ETF12STRR-M3?

A: Both parts are parametric equivalents with identical electrical specifications and package configuration. The difference lies in the packaging format designation (STRL versus STRR), which reflects different tape and reel configurations. Both are supplied in Tape & Reel format and are suitable for automated assembly. Selection between these two parts depends on specific assembly equipment compatibility and procurement requirements.

Q: Why is the 10ETF12S classified as obsolete?

A: The 10ETF12S is an older product designation that has been superseded by the active equivalents VS-10ETF12STRL-M3 and VS-10ETF12STRR-M3. Obsolete classification indicates that the original part number is no longer in active production, though existing inventory may remain available.

Q: Are there any differences in thermal performance between the 10ETF12S and the substitute parts?

A: No. All three parts share identical operating temperature ranges (-40°C to 150°C junction temperature) and are packaged in the same TO-263AB (D2PAK) configuration with identical thermal characteristics.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance is a regulatory and material composition requirement, not an electrical performance specification. The ROHS3 compliance of VS-10ETF12STRL-M3 and VS-10ETF12STRR-M3 reflects adherence to environmental and material standards. Electrical performance remains identical across all three parts.

Q: Can the substitute parts be used in high-volume automated assembly?

A: Yes. The substitute parts VS-10ETF12STRL-M3 and VS-10ETF12STRR-M3 are supplied in Tape & Reel format, which is the standard packaging for automated pick-and-place assembly processes. This format is preferred for high-volume production environments.

Q: What is the reverse recovery time specification, and why is it important?

A: The reverse recovery time (trr) is 310 ns for all three parts. This parameter defines the time required for the diode to switch from forward conduction to reverse blocking when the applied voltage reverses. Fast recovery diodes with trr ≤ 500 ns are suitable for high-frequency switching applications and power conversion circuits.

Q: Are the substitute parts available in the same quantities as the 10ETF12S?

A: Inventory levels differ. The 10ETF12S has 1001 pieces in stock, while VS-10ETF12STRL-M3 has 8777 pieces and VS-10ETF12STRR-M3 has 1103 pieces available. The higher inventory of VS-10ETF12STRL-M3 reflects its active product status and ongoing production.

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