STTH60SW03CW Equivalent & Substitute Parts

Part Overview

The STTH60SW03CW is a general-purpose diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode rectifier rated for 300 V DC reverse voltage and 30 A average rectified current per diode. The device is packaged in a TO-247-3 through-hole configuration and features fast recovery characteristics with a reverse recovery time of 27 ns.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this rectifier specification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io) (per Diode)	30	A
Voltage - Forward (Vf) (Max) @ If	1.25 @ 30 A	V
Reverse Recovery Time (trr)	27	ns
Current - Reverse Leakage @ Vr	15	µA @ 300 V
Operating Temperature - Junction (Max)	175	°C
Diode Configuration	1 Pair Common Cathode	—
Mounting Type	Through Hole	—
Package / Case	TO-247-3	—

Substitute Part Grouping Explanation

Substitution of the STTH60SW03CW is determined by strict equivalence across the following critical parameters:

Voltage Rating: DC reverse voltage must equal 300 V
Current Rating: Average rectified current per diode must equal 30 A
Diode Configuration: Must be 1 Pair Common Cathode
Forward Voltage: Maximum forward voltage at rated current must not exceed 1.25 V @ 30 A
Package Type: Must be TO-247-3 through-hole configuration
Mounting: Must support through-hole mounting

The VS-60CPH03-N3 manufactured by Vishay General Semiconductor - Diodes Division meets all electrical and mechanical substitution criteria. Both devices share identical voltage ratings, current ratings, diode configuration, forward voltage characteristics, and package specifications. The primary distinction lies in recovery speed classification and reverse leakage current, which are secondary performance characteristics that do not preclude substitution within the defined parameter envelope.

Parameter Comparison

Parameter	STTH60SW03CW (STMicroelectronics)	VS-60CPH03-N3 (Vishay)	Match Status
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	Equivalent
Current - Average Rectified (Io) (per Diode)	30 A	30 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 30 A	1.25 V @ 30 A	Equivalent
Operating Temperature - Junction (Max)	175°C	175°C	Equivalent
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	TO-247-3	TO-247-3	Equivalent
Reverse Recovery Time (trr)	27 ns (Fast Recovery)	Not specified (Standard Recovery)	Different
Current - Reverse Leakage @ Vr	15 µA @ 300 V	60 µA @ 300 V	Different
Product Status	Obsolete	Active	Substitute Available

Engineering Selection Recommendations

The VS-60CPH03-N3 is a direct electrical and mechanical substitute for the STTH60SW03CW based on equivalence of all primary electrical parameters: voltage rating, current rating, forward voltage drop, junction temperature rating, and diode configuration. Both devices are packaged identically in TO-247-3 through-hole format and support the same mounting methodology.

The STTH60SW03CW is classified as obsolete, whereas the VS-60CPH03-N3 maintains active product status with confirmed inventory availability (1395 pcs in stock). This status differential makes the Vishay component the preferred selection for new designs and ongoing production support.

The VS-60CPH03-N3 is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement. The Vishay device is supplied in tube packaging, whereas the original STMicroelectronics part does not specify packaging format in the provided data.

Secondary performance differences exist: the STTH60SW03CW exhibits faster recovery characteristics (27 ns trr, classified as Fast Recovery ≤500 ns) compared to the VS-60CPH03-N3 (Standard Recovery >500 ns). Additionally, the STTH60SW03CW demonstrates lower reverse leakage current (15 µA @ 300 V) relative to the Vishay substitute (60 µA @ 300 V). These differences do not affect substitution eligibility within the defined parameter envelope but should be evaluated against specific application requirements for switching frequency and leakage-sensitive circuits.

Frequently Asked Questions (FAQ)

Q: Can the VS-60CPH03-N3 be used as a direct replacement for the STTH60SW03CW in existing designs?

A: Yes. The VS-60CPH03-N3 meets all primary electrical and mechanical specifications: 300 V reverse voltage rating, 30 A average rectified current per diode, 1.25 V forward voltage drop at 30 A, 1 Pair Common Cathode configuration, and TO-247-3 through-hole package. Pin-to-pin compatibility and electrical performance within the defined parameter envelope are confirmed.

Q: What are the differences between these two diode arrays?

A: The primary differences are product status and secondary performance characteristics. The STTH60SW03CW is obsolete; the VS-60CPH03-N3 is active. The STMicroelectronics device features faster recovery time (27 ns) and lower reverse leakage current (15 µA @ 300 V), while the Vishay device exhibits standard recovery characteristics and higher reverse leakage (60 µA @ 300 V). These differences do not affect substitution within the specified parameter envelope.

Q: Are there any package or mounting differences?

A: Both devices use the TO-247-3 through-hole package and support identical mounting configurations. The VS-60CPH03-N3 is supplied in tube packaging, whereas the STTH60SW03CW packaging format is not specified in the provided data. No modifications to PCB layout or mounting hardware are required.

Q: Why is the STTH60SW03CW classified as obsolete?

A: Product obsolescence is determined by the manufacturer and reflects end-of-life status. The VS-60CPH03-N3 maintains active product status with current manufacturing and distribution support, making it the recommended selection for ongoing applications.

Q: Are there compliance or regulatory considerations for substitution?

A: The VS-60CPH03-N3 is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements. Compliance documentation should be verified against specific procurement and application requirements.

Q: Should the faster recovery time of the STTH60SW03CW influence substitution decisions?

A: Recovery time is a secondary performance characteristic. The STTH60SW03CW (27 ns, Fast Recovery) exhibits superior switching performance compared to the VS-60CPH03-N3 (Standard Recovery >500 ns). Applications with high switching frequency or stringent EMI requirements should evaluate whether standard recovery characteristics are acceptable. For general-purpose rectification applications, the performance difference does not preclude substitution.

Q: How do reverse leakage current differences affect circuit performance?

A: The STTH60SW03CW exhibits lower reverse leakage (15 µA @ 300 V) compared to the VS-60CPH03-N3 (60 µA @ 300 V). This difference is relevant for applications with high impedance circuits or extended reverse bias conditions. For standard rectification applications, the leakage difference does not affect substitution eligibility.

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