Equivalent & Substitute Parts for 10ETF02

Part Overview

The 10ETF02 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 10 A average rectified current in a through-hole TO-220AC package. This diode is classified as Active product status and employs standard rectifier technology with fast recovery characteristics. Substitute parts are identified to address inventory availability, compliance requirements, or performance optimization within the specified electrical and mechanical parameters.

Substiute Parts

10ETF02

Vishay General Semiconductor - Diodes DivisionIn Stock: 108010ETF02 Datasheet

Current PartRFQ

STTH1202D

STMicroelectronicsIn Stock: 1165STTH1202D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 10ETF02 with the STTH1202D is permissible based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): Both rated at 200 V
• Speed Classification: Both classified as Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Both Through Hole
• Package / Case: Both TO-220-2
• Supplier Device Package: Both TO-220AC

Substitution Logic: The STTH1202D operates within the same voltage class (200 V) and package form factor (TO-220AC) as the 10ETF02. The STTH1202D provides a higher average rectified current rating (12 A versus 10 A), which permits direct substitution in applications requiring the 10ETF02's 10 A specification. Both devices employ fast recovery rectifier technology and share identical mechanical mounting characteristics. The TO-220-2 package ensures mechanical and thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

10ETF02 (Vishay General Semiconductor - Diodes Division): The 10ETF02 remains the primary specification for applications requiring exact compliance with the original design parameters. This part is Active product status and suitable for applications where RoHS non-compliance is acceptable or where legacy system requirements mandate the original manufacturer specification.

STTH1202D (STMicroelectronics): The STTH1202D is a direct substitute for the 10ETF02 in applications where the following conditions are met: (1) the circuit design accommodates the higher 12 A current rating, (2) ROHS3 compliance is required or preferred, and (3) the enhanced operating temperature range (175°C maximum junction temperature versus 150°C) provides system margin. The STTH1202D exhibits superior reverse recovery time performance (35 ns versus 145 ns) and lower reverse leakage current (10 µA versus 100 µA at 200 V), resulting in reduced switching losses and improved thermal efficiency. Both parts maintain Active product status and identical mechanical compatibility in TO-220AC packaging.

Frequently Asked Questions (FAQ)

Q: Can the STTH1202D replace the 10ETF02 in existing circuit designs?

A: Yes. The STTH1202D is electrically and mechanically compatible with the 10ETF02. Both devices share identical voltage ratings (200 V), fast recovery speed classification, and TO-220AC package form factor. The STTH1202D's higher current rating (12 A) and superior performance characteristics (lower reverse recovery time and leakage current) permit direct substitution without circuit modification.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Current rating: STTH1202D is rated for 12 A versus 10ETF02 at 10 A; (2) Reverse recovery time: STTH1202D at 35 ns versus 10ETF02 at 145 ns; (3) Reverse leakage current: STTH1202D at 10 µA versus 10ETF02 at 100 µA (both at 200 V); (4) Maximum junction temperature: STTH1202D at 175°C versus 10ETF02 at 150°C; (5) RoHS compliance: STTH1202D is ROHS3 compliant while 10ETF02 is RoHS non-compliant.

Q: Are the packages identical?

A: Yes. Both the 10ETF02 and STTH1202D use the TO-220-2 package with TO-220AC supplier device package designation. Mechanical mounting, thermal interface, and PCB footprint are identical.

Q: Does the STTH1202D's higher current rating affect compatibility?

A: No. A higher current rating indicates the substitute part can safely handle equal or greater current than the original specification. In applications requiring 10 A operation, the STTH1202D operates within its rated specifications with additional design margin.

Q: What is the significance of the lower reverse recovery time in the STTH1202D?

A: Reverse recovery time (trr) affects switching speed and switching losses. The STTH1202D's 35 ns recovery time versus the 10ETF02's 145 ns results in faster diode turn-off, reduced reverse current spikes, and lower power dissipation during switching transitions. This characteristic is particularly beneficial in high-frequency switching applications.

Q: Is RoHS compliance a factor in selecting between these parts?

A: RoHS compliance is a regulatory and supply chain consideration. The STTH1202D is ROHS3 compliant, while the 10ETF02 is RoHS non-compliant. Applications subject to RoHS directives or customer requirements mandating RoHS compliance must use the STTH1202D or equivalent compliant alternatives.