STPS40L15CT Equivalent & Substitute Parts

Part Overview

The STPS40L15CT is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration with a maximum reverse voltage rating of 15 V and an average rectified current of 20 A per diode. The device is packaged in a Through Hole TO-220-3 case and is classified as obsolete. Due to its obsolete product status, equivalent substitute parts with identical or superior electrical characteristics and compatible mechanical specifications are necessary for ongoing design support and procurement continuity.

Substiute Parts

STPS40L15CT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1206STPS40L15CT Datasheet

Current PartRFQ

STPS40L15CT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1206STPS40L15CT Datasheet

MFR RecommendedRFQ

STPS40L15CW

Vishay General Semiconductor - Diodes DivisionIn Stock: 1262STPS40L15CW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS40L15CT is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 15 V
• Current - Average Rectified (Io) (per Diode): 20 A
• Voltage - Forward (Vf) (Max) @ If: 410 mV @ 19 A
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
• Current - Reverse Leakage @ Vr: 10 mA @ 15 V
• Operating Temperature - Junction: -55°C ~ 125°C

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Base Product Number: STPS40

Substitute parts must maintain identical electrical performance across all specified parameters. Package variations (TO-220-3 versus TO-247-3) are permitted when mechanical board layout accommodates the alternative form factor, as both are Through Hole mounting technologies within the same product family.

Parameter Comparison

Engineering Selection Recommendations

Both the STPS40L15CT and STPS40L15CW are classified as obsolete products. Selection between these parts is based on mechanical package compatibility with the printed circuit board design.

STPS40L15CT (TO-220-3 Package): Select this part number when the circuit board layout specifies a TO-220-3 footprint with three through-hole mounting positions. This package provides standard thermal and mechanical characteristics for the specified current and voltage ratings.

STPS40L15CW (TO-247-3 Package): Select this part number when the circuit board layout accommodates a TO-247-3 footprint. The TO-247-3 package provides equivalent electrical performance with alternative mechanical dimensions suitable for designs requiring different thermal or spatial considerations.

Both parts maintain identical electrical specifications across all critical parameters including reverse voltage, forward voltage, rectified current, leakage current, and operating temperature range. The choice between these substitutes is determined solely by mechanical board compatibility and thermal management requirements of the specific application.

Frequently Asked Questions (FAQ)

Q: Can STPS40L15CW be used as a direct replacement for STPS40L15CT?

A: Electrical substitution is direct when the circuit board layout accommodates the TO-247-3 package footprint. Both parts share identical electrical characteristics including 15 V reverse voltage rating, 20 A rectified current per diode, 410 mV forward voltage at 19 A, and -55°C to 125°C operating temperature range. Physical board layout modifications may be required to accommodate the different package dimensions.

Q: What is the primary difference between STPS40L15CT and STPS40L15CW?

A: The primary difference is the package form factor. STPS40L15CT uses a TO-220-3 Through Hole package, while STPS40L15CW uses a TO-247-3 Through Hole package. All electrical parameters, including diode configuration, Schottky technology, voltage ratings, current ratings, and temperature range, are identical.

Q: Are both parts suitable for the same circuit applications?

A: Both parts are suitable for identical circuit applications when the mechanical package is compatible with the board design. The electrical performance is equivalent across all specified parameters. Package selection depends on available board space, thermal dissipation requirements, and mechanical mounting constraints.

Q: What compliance certifications apply to these parts?

A: Both STPS40L15CT and STPS40L15CW are RoHS non-compliant and REACH Unaffected. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Why are both parts classified as obsolete?

A: Both the STPS40L15CT and STPS40L15CW are obsolete products from Vishay General Semiconductor - Diodes Division. Obsolete status indicates these parts are no longer in active production. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed.