TSF10H45C Equivalent & Substitute Parts

Part Overview

The TSF10H45C is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode design rated for 45 V DC reverse voltage and 5 A average rectified current per diode. The component is packaged in a Through Hole TO-220-3 Full Pack with Isolated Tab configuration and is classified as Active product status. Equivalent and substitute parts are identified to address inventory availability, supply chain continuity, and application-specific performance requirements while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

TSF10H45C

Taiwan Semiconductor CorporationIn Stock: 1488TSF10H45C Datasheet

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TSF10H45C

Taiwan Semiconductor CorporationIn Stock: 1488TSF10H45C Datasheet

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MBRF1545CT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1996MBRF1545CT-E3/45 Datasheet

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MBRF2545CT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1531MBRF2545CT-E3/45 Datasheet

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STD2045C

SMC Diode SolutionsIn Stock: 3599STD2045C Datasheet

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STF1045C

SMC Diode SolutionsIn Stock: 1920STF1045C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSF10H45C is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 45 V minimum
• Mounting Type: Through Hole or Surface Mount (application-dependent)
• Package / Case: TO-220-3 Full Pack, Isolated Tab or equivalent footprint

Current Rating Consideration: Substitute parts with Current - Average Rectified (Io) ratings equal to or greater than 5 A per diode are electrically compatible. Parts with higher current ratings operate within the same voltage class and maintain the same switching speed characteristics.

Substitute parts are grouped into two categories:

1. Direct Through-Hole Equivalents (TSF10H45C, STF1045C): Identical mounting type and package configuration. These parts maintain pin-for-pin compatibility and identical thermal characteristics.

2. Higher Current Rating Through-Hole Alternatives (MBRF1545CT-E3/45, MBRF2545CT-E3/45): Maintain TO-220-3 Full Pack, Isolated Tab packaging with increased current capacity. These parts are electrically interchangeable with enhanced performance headroom.

3. Surface Mount Alternative (STD2045C): Differs in mounting type (Surface Mount vs. Through Hole) and package designation (TO-252-3, DPAK). This part is not mechanically interchangeable with the TSF10H45C and requires PCB redesign.

Parameter Comparison

Engineering Selection Recommendations

For Direct Pin-for-Pin Replacement (Through-Hole TO-220-3 Applications):

STF1045C (SMC Diode Solutions) is the primary equivalent to TSF10H45C. Both components share identical package configuration, mounting type, and thermal characteristics. STF1045C maintains ROHS3 compliance and MSL 1 rating. Selection of STF1045C is appropriate when inventory of the original TSF10H45C is unavailable and no design modifications are permissible.

For Enhanced Performance with Increased Current Capacity (Through-Hole TO-220-3 Applications):

MBRF1545CT-E3/45 (Vishay General Semiconductor - Diodes Division) provides 7.5 A current rating with identical 45 V voltage class and TO-220-3 Full Pack, Isolated Tab packaging. This part is electrically interchangeable and offers improved reverse leakage characteristics (100 µA vs. 500 µA). Extended operating temperature range (-65 to 150 °C vs. -55 to 150 °C) provides additional thermal margin. ROHS3 compliance and MSL 1 rating are maintained.

MBRF2545CT-E3/45 (Vishay General Semiconductor - Diodes Division) provides 12.5 A current rating with identical voltage class and package configuration. This part is electrically interchangeable for applications requiring maximum current headroom. Extended operating temperature range and improved reverse leakage characteristics are provided. ROHS3 compliance and MSL 1 rating are maintained.

For Surface Mount Applications (Requires PCB Redesign):

STD2045C (SMC Diode Solutions) is a surface mount alternative rated for 10 A at 45 V with TO-252-3, DPAK packaging. This part is not mechanically interchangeable with the TSF10H45C due to different mounting type and package footprint. Selection of STD2045C requires PCB layout modification and is appropriate only when surface mount technology is specified for the application. ROHS3 compliance is maintained; however, REACH Status is listed as Affected.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. REACH Status varies: TSF10H45C, MBRF1545CT-E3/45, and MBRF2545CT-E3/45 are REACH Unaffected; STF1045C and STD2045C are REACH Affected. Application-specific regulatory requirements must be evaluated prior to part selection.

Frequently Asked Questions (FAQ)

Q: Can STF1045C be used as a direct replacement for TSF10H45C?

A: Yes. STF1045C is electrically and mechanically compatible with TSF10H45C. Both components share identical diode configuration (1 Pair Common Cathode), Schottky technology, 45 V voltage rating, TO-220-3 Full Pack, Isolated Tab packaging, and Through Hole mounting type. Forward voltage characteristics are comparable (480 mV vs. 580 mV @ 5 A), and both maintain ROHS3 compliance and MSL 1 rating.

Q: What is the difference between TSF10H45C and MBRF1545CT-E3/45?

A: Both components are electrically compatible with identical 45 V voltage rating, 1 Pair Common Cathode configuration, Schottky technology, and TO-220-3 Full Pack, Isolated Tab packaging. MBRF1545CT-E3/45 provides higher current capacity (7.5 A vs. 5 A), lower reverse leakage (100 µA vs. 500 µA), and extended operating temperature range (-65 to 150 °C vs. -55 to 150 °C). MBRF1545CT-E3/45 is manufactured by Vishay General Semiconductor - Diodes Division.

Q: Can MBRF2545CT-E3/45 replace TSF10H45C in all applications?

A: MBRF2545CT-E3/45 is electrically compatible with TSF10H45C for applications operating at or below 5 A per diode. The component provides 12.5 A current capacity, identical 45 V voltage rating, and TO-220-3 Full Pack, Isolated Tab packaging. Forward voltage at rated current is higher (820 mV @ 30 A), and reverse leakage is increased (200 µA vs. 500 µA). Thermal performance and operating temperature range are superior. MBRF2545CT-E3/45 is suitable for applications requiring enhanced current headroom and improved reverse leakage performance.

Q: Why is STD2045C listed as a substitute if it uses Surface Mount packaging?

A: STD2045C is listed as a substitute based on electrical compatibility (45 V voltage rating, 1 Pair Common Cathode configuration, Schottky technology, 10 A current capacity, Fast Recovery speed). However, STD2045C uses TO-252-3, DPAK Surface Mount packaging and is not mechanically interchangeable with the Through Hole TSF10H45C. Selection of STD2045C requires PCB redesign and is appropriate only for new designs or applications where surface mount technology is specified.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (STF1045C, MBRF1545CT-E3/45, MBRF2545CT-E3/45, STD2045C) maintain ROHS3 compliance. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.

Q: What is the difference in REACH Status between substitute parts?

A: TSF10H45C, MBRF1545CT-E3/45, and MBRF2545CT-E3/45 are listed as REACH Unaffected. STF1045C and STD2045C are listed as REACH Affected. Application-specific regulatory requirements in the European Union or other jurisdictions must be evaluated to determine if REACH Affected status impacts part selection.

Q: Can I use MBRF1545CT-E3/45 or MBRF2545CT-E3/45 in a circuit designed for 5 A operation?

A: Yes. Both MBRF1545CT-E3/45 (7.5 A) and MBRF2545CT-E3/45 (12.5 A) are electrically compatible with circuits designed for 5 A operation. Higher current rating components operate safely at lower current levels. Forward voltage characteristics differ at rated current; however, at 5 A operation, forward voltage performance is comparable to TSF10H45C. Reverse leakage is improved in both higher-rated parts.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Diode Configuration (1 Pair Common Cathode), (2) Technology (Schottky), (3) Voltage - DC Reverse (Vr) (Max) (45 V minimum), (4) Current - Average Rectified (Io) (per Diode) (equal to or greater than 5 A), (5) Speed (Fast Recovery ≤ 500ns, > 200mA), (6) Mounting Type (Through Hole for direct replacement), and (7) Package / Case (TO-220-3 Full Pack, Isolated Tab for direct replacement). All substitute parts meet these criteria.

Q: Is inventory availability a factor in part selection?

A: Inventory availability is provided for reference: TSF10H45C (1413 Pcs), STF1045C (1832 Pcs), MBRF1545CT-E3/45 (1960 Pcs), MBRF2545CT-E3/45 (1427 Pcs), and STD2045C (3544 Pcs). Inventory levels are subject to change and should be verified with the supplier prior to procurement decisions.