TSF30H45C Equivalent & Substitute Parts

Part Overview

The TSF30H45C is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode arrangement in a TO-220-3 Full Pack with isolated tab. This component is rated for 45 V DC reverse voltage with 15 A average rectified current per diode and operates across a junction temperature range of -55°C to 150°C. The part is Active in product status and RoHS3 compliant. Substitute parts are identified to address inventory availability, extended temperature ranges, or specific application requirements while maintaining electrical and mechanical compatibility within the TO-220-3 package family.

Substiute Parts

TSF30H45C

Taiwan Semiconductor CorporationIn Stock: 987TSF30H45C 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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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TSF30H45C are qualified based on the following criteria:

Electrical Compatibility Requirements:

• Voltage - DC Reverse (Vr) (Max): 45 V (exact match required)
• Diode Configuration: 1 Pair Common Cathode (exact match required)
• Technology: Schottky (exact match required)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (exact match required)

Mechanical Compatibility Requirements:

• Package / Case: TO-220-3 Full Pack, Isolated Tab (exact match required)
• Supplier Device Package: ITO-220AB (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Requirements:

• RoHS Status: RoHS3 Compliant (exact match required)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (exact match required)

Allowable Variations:

• Current - Average Rectified (Io) (per Diode): May vary within application limits
• Voltage - Forward (Vf) (Max) @ If: May vary with current rating
• Current - Reverse Leakage @ Vr: May vary within acceptable limits
• Operating Temperature - Junction: May extend beyond -55°C ~ 150°C range
• Manufacturer: Different manufacturers permitted

The substitute parts MBRF1545CT-E3/45 and MBRF2545CT-E3/45 satisfy all mandatory electrical, mechanical, and compliance criteria while offering different current ratings and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

All three parts—TSF30H45C, MBRF1545CT-E3/45, and MBRF2545CT-E3/45—are Active products with RoHS3 compliance and MSL 1 (Unlimited) ratings. Selection between these parts is determined by application current requirements and thermal operating range specifications.

TSF30H45C is suitable for applications requiring 15 A average rectified current per diode with a junction temperature range of -55°C to 150°C.

MBRF1545CT-E3/45 is suitable for applications requiring 7.5 A average rectified current per diode. This part offers an extended lower temperature limit of -65°C and reduced reverse leakage current (100 µA @ 45 V compared to 500 µA @ 45 V for the main part).

MBRF2545CT-E3/45 is suitable for applications requiring 12.5 A average rectified current per diode. This part also offers an extended lower temperature limit of -65°C and reduced reverse leakage current (200 µA @ 45 V).

All parts maintain identical voltage ratings (45 V DC reverse), diode configuration (1 Pair Common Cathode), technology (Schottky), recovery speed characteristics, and mechanical packaging (TO-220-3 Full Pack, Isolated Tab, ITO-220AB).

Frequently Asked Questions (FAQ)

Q: Can MBRF1545CT-E3/45 be used as a direct replacement for TSF30H45C?

A: MBRF1545CT-E3/45 is electrically and mechanically compatible with TSF30H45C in terms of voltage rating, package type, and configuration. However, the current rating differs: MBRF1545CT-E3/45 is rated for 7.5 A average rectified current per diode, while TSF30H45C is rated for 15 A. Substitution is valid only if the application current requirement does not exceed 7.5 A per diode.

Q: Can MBRF2545CT-E3/45 be used as a direct replacement for TSF30H45C?

A: MBRF2545CT-E3/45 is electrically and mechanically compatible with TSF30H45C in terms of voltage rating, package type, and configuration. The current rating of MBRF2545CT-E3/45 is 12.5 A average rectified current per diode, compared to 15 A for TSF30H45C. Substitution is valid if the application current requirement does not exceed 12.5 A per diode.

Q: What are the key differences between the substitute parts?

A: The primary differences are current ratings and reverse leakage characteristics. MBRF1545CT-E3/45 provides 7.5 A with 100 µA reverse leakage @ 45 V. MBRF2545CT-E3/45 provides 12.5 A with 200 µA reverse leakage @ 45 V. Both substitute parts offer extended lower temperature operation (-65°C minimum) compared to TSF30H45C (-55°C minimum).

Q: Are all parts in the same physical package?

A: Yes. All three parts use the TO-220-3 Full Pack with isolated tab package (ITO-220AB supplier device package). Through-hole mounting characteristics are identical across all parts.

Q: Do all parts meet the same compliance standards?

A: Yes. All three parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. All parts are Active in product status.

Q: What is the significance of the reverse leakage current differences?

A: Reverse leakage current is the small current that flows through the diode when reverse biased. MBRF1545CT-E3/45 exhibits lower reverse leakage (100 µA @ 45 V) compared to TSF30H45C (500 µA @ 45 V), which may be beneficial in applications sensitive to leakage current. MBRF2545CT-E3/45 provides intermediate leakage (200 µA @ 45 V).

Q: Can I use a higher-current-rated part in place of a lower-current-rated part?

A: Using a higher-current-rated part in place of a lower-current-rated part is not a valid substitution strategy. Component selection must be based on application requirements. The part must be rated for the actual current demands of the circuit.