TST40L60CW Equivalent & Substitute Parts

Part Overview

The TST40L60CW is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode design with a maximum reverse voltage rating of 60 V and an average rectified current of 40 A per diode. The device is packaged in a TO-220-3 through-hole configuration and features fast recovery characteristics with a maximum forward voltage of 630 mV at 20 A.

The TST40L60CW is classified as an obsolete product. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array.

Substiute Parts

TST40L60CW

Taiwan Semiconductor CorporationIn Stock: 790TST40L60CW Datasheet

Current PartRFQ

ST4060C

SMC Diode SolutionsIn Stock: 9053ST4060C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TST40L60CW is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Diode configuration must be 1 Pair Common Cathode
• Technology must be Schottky
• Maximum reverse voltage (Vr) must be 60 V or greater
• Average rectified current (Io) per diode must meet or exceed 40 A
• Forward voltage (Vf) characteristics must be compatible at specified current levels
• Recovery speed must be Fast Recovery ≤ 500 ns, > 200 mA (Io)
• Operating temperature range must encompass -55°C ~ 150°C

Mechanical Compatibility Requirements:

• Mounting type must be Through Hole
• Package must be TO-220-3
• Supplier device package must be TO-220AB

Regulatory Compliance:

• RoHS3 compliance required

The ST4060C from SMC Diode Solutions shares identical configuration, technology, voltage rating, package type, and thermal operating range. However, the ST4060C is rated for 20 A average rectified current per diode, which is below the 40 A specification of the TST40L60CW. This difference in current rating establishes a one-directional substitution relationship where the ST4060C cannot serve as a direct equivalent for applications requiring the full 40 A capability.

Parameter Comparison

Engineering Selection Recommendations

The ST4060C is an active product from SMC Diode Solutions with established supply chain availability, whereas the TST40L60CW is obsolete. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings.

The primary distinction between these components is the average rectified current specification. The TST40L60CW supports 40 A per diode, while the ST4060C is rated for 20 A per diode. This difference in current capacity is a critical parameter for component selection.

For applications operating at or below 20 A per diode, the ST4060C provides an active alternative with compatible electrical characteristics, identical package configuration, and equivalent thermal operating range. The forward voltage differential of 10 mV (630 mV versus 620 mV at 20 A) is negligible for most circuit applications.

For applications requiring the full 40 A capability of the TST40L60CW, the ST4060C does not provide an equivalent substitution due to its reduced current rating.

Frequently Asked Questions (FAQ)

Q: Can the ST4060C directly replace the TST40L60CW in all applications?

A: The ST4060C shares identical package configuration (TO-220-3), diode configuration (1 Pair Common Cathode), voltage rating (60 V), and thermal operating range (-55°C ~ 150°C) with the TST40L60CW. However, the ST4060C is rated for 20 A average rectified current per diode, compared to the TST40L60CW's 40 A rating. Direct substitution is limited to applications operating at or below 20 A per diode.

Q: What is the significance of the current rating difference?

A: The average rectified current specification defines the maximum continuous current each diode can conduct. The TST40L60CW supports 40 A per diode, while the ST4060C supports 20 A per diode. Exceeding the rated current of the ST4060C will result in thermal stress and potential device failure. Applications requiring 40 A operation cannot use the ST4060C as a substitute.

Q: Are the forward voltage characteristics compatible?

A: Both components exhibit similar forward voltage characteristics at 20 A: 630 mV for the TST40L60CW and 620 mV for the ST4060C. This 10 mV difference is within typical circuit tolerance margins and does not present a compatibility concern for most applications.

Q: Do both components have identical package dimensions?

A: Both the TST40L60CW and ST4060C use the TO-220-3 package with TO-220AB supplier device packaging. The physical dimensions and pin configurations are identical, allowing for direct mechanical interchange on printed circuit boards.

Q: What is the difference in reverse leakage current?

A: The TST40L60CW exhibits 500 µA reverse leakage at 60 V, while the ST4060C exhibits 6 mA reverse leakage at 60 V. The ST4060C has higher reverse leakage current. For applications sensitive to leakage current characteristics, this difference should be evaluated against circuit requirements.

Q: Are both components RoHS compliant?

A: Both the TST40L60CW and ST4060C are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting current environmental and regulatory standards.

Q: Why is the TST40L60CW classified as obsolete?

A: The TST40L60CW is listed as an obsolete product, indicating it is no longer in active production. The ST4060C, classified as an active product, represents the current manufacturing alternative from SMC Diode Solutions for applications within its current rating specification.