STPSC20065W Silicon Carbide Schottky Diode Equivalent & Substitute Parts

Part Overview

The STPSC20065W is an active silicon carbide Schottky rectifier diode rated for 650 V DC reverse voltage and 20 A average rectified current in a through-hole DO-247 package. This component is manufactured by STMicroelectronics under the ECOPACK®2 series and is ROHS3 compliant. The STPSC20065W serves in high-voltage rectification applications requiring fast switching characteristics and minimal reverse recovery time inherent to silicon carbide technology. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	650	V
Current - Average Rectified (Io)	20	A
Voltage - Forward (Vf) (Max) @ If	1.45 @ 20 A	V
Reverse Recovery Time (trr)	0	ns
Current - Reverse Leakage @ Vr	300 µA @ 650 V	µA
Capacitance @ Vr, F	1250 pF @ 0V, 1MHz	pF
Operating Temperature - Junction	-40 to 175	°C
Package / Case	DO-247-2 (Straight Leads)	—
Technology	SiC (Silicon Carbide) Schottky	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the STPSC20065W is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

Voltage Rating: 650 V DC reverse voltage (Vr) maximum
Current Rating: 20 A average rectified current (Io)
Forward Voltage: 1.45 V maximum at 20 A forward current
Reverse Recovery Time: 0 ns (characteristic of silicon carbide technology)
Reverse Leakage Current: 300 µA at 650 V
Junction Capacitance: 1250 pF at 0 V, 1 MHz
Package: DO-247-2 with straight leads (through-hole mounting)
Technology: SiC Schottky diode
Temperature Range: -40°C to 175°C junction operating temperature
Compliance: ROHS3 compliant, REACH unaffected

The STPSC20065WY meets all these parameters and is classified as a parametric equivalent. Additional qualifications such as AEC-Q101 automotive certification on the substitute part do not disqualify it from substitution; they represent enhanced qualification scope.

Parameter Comparison

Parameter	STPSC20065W	STPSC20065WY	Match
Voltage - DC Reverse (Vr) (Max)	650 V	650 V	✓
Current - Average Rectified (Io)	20 A	20 A	✓
Voltage - Forward (Vf) (Max) @ If	1.45 V @ 20 A	1.45 V @ 20 A	✓
Reverse Recovery Time (trr)	0 ns	0 ns	✓
Current - Reverse Leakage @ Vr	300 µA @ 650 V	300 µA @ 650 V	✓
Capacitance @ Vr, F	1250 pF @ 0V, 1MHz	1250 pF @ 0V, 1MHz	✓
Operating Temperature - Junction	-40°C to 175°C	-40°C to 175°C	✓
Package / Case	DO-247-2 (Straight Leads)	DO-247-2 (Straight Leads)	✓
Technology	SiC Schottky	SiC Schottky	✓
Mounting Type	Through Hole	Through Hole	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Series	ECOPACK®2	ECOPACK®2	✓

Engineering Selection Recommendations

The STPSC20065WY is a direct parametric equivalent to the STPSC20065W. Both parts are manufactured by STMicroelectronics, carry active product status, and are ROHS3 compliant with REACH unaffected designation. Both are packaged in DO-247-2 with straight leads for through-hole mounting.

The STPSC20065WY carries additional AEC-Q101 automotive qualification, which indicates enhanced qualification testing and reliability documentation. This qualification does not alter the electrical or mechanical performance characteristics and does not restrict substitution in non-automotive applications.

Selection between STPSC20065W and STPSC20065WY should be based on application requirements, inventory availability, and supply chain considerations. The STPSC20065WY currently has higher inventory availability (3030 pcs vs. 2200 pcs). Both parts are suitable for direct substitution in existing designs without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can STPSC20065WY replace STPSC20065W in existing designs?

A: Yes. The STPSC20065WY is a parametric equivalent with identical electrical ratings (650 V, 20 A, 1.45 V forward voltage, 0 ns recovery time) and mechanical specifications (DO-247-2 package, through-hole mounting). No circuit redesign is required.

Q: What is the difference between STPSC20065W and STPSC20065WY?

A: Both parts are electrically and mechanically identical. The STPSC20065WY carries AEC-Q101 automotive qualification, indicating additional qualification testing and documentation. This does not affect performance in non-automotive applications.

Q: Are both parts ROHS3 compliant?

A: Yes. Both STPSC20065W and STPSC20065WY are ROHS3 compliant with moisture sensitivity level 1 (unlimited shelf life).

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use identical DO-247-2 package geometry with straight leads and are mounted through-hole. PCB footprints and lead spacing are identical.

Q: What is the reverse recovery time for these diodes?

A: Both parts have 0 ns reverse recovery time, which is characteristic of silicon carbide Schottky technology and indicates no reverse recovery charge.

Q: Are there any temperature derating considerations?

A: Both parts operate across -40°C to 175°C junction temperature range. Thermal management and PCB layout should follow STMicroelectronics application guidelines for the DO-247 package to maintain junction temperature within specification.

Q: What is the reverse leakage current specification?

A: Both parts specify 300 µA maximum reverse leakage current at 650 V DC reverse voltage, measured at rated junction temperature.

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