40L15CT Equivalent & Substitute Parts

Part Overview

The 40L15CT is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 15 V DC reverse voltage and 20 A average rectified current per diode. The device is packaged in a Through Hole TO-220-3 case and operates across a junction temperature range of -55°C to 125°C.

The 40L15CT is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array configuration.

Substiute Parts

40L15CT

Vishay General Semiconductor - Diodes DivisionIn Stock: 2024540L15CT 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

Substitute parts for the 40L15CT are identified based on strict electrical and mechanical parameter matching. The substitution logic is organized into two categories:

Manufacturer Recommended Substitute (Identical Electrical and Mechanical Parameters): Parts that maintain all electrical specifications, diode configuration, voltage ratings, current ratings, forward voltage characteristics, and thermal operating range. These parts are functionally interchangeable with identical package specifications.

Parametric Equivalent (Identical Electrical Parameters, Different Package): Parts that maintain all electrical specifications, diode configuration, voltage ratings, current ratings, forward voltage characteristics, and thermal operating range, but utilize an alternative Through Hole package. These parts require mechanical board layout modifications but provide electrical equivalence.

The following parameters determine substitution eligibility:

• 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 ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 10 mA @ 15 V
• Operating Temperature - Junction: -55°C ~ 125°C
• Mounting Type: Through Hole

Parameter Comparison

Engineering Selection Recommendations

STPS40L15CT is the manufacturer recommended substitute for the 40L15CT. This part maintains identical electrical specifications, diode configuration, thermal operating range, and package form factor (TO-220-3). Both components share obsolete product status and identical compliance certifications (RoHS non-compliant, REACH Unaffected). Direct substitution is supported without circuit board modifications.

STPS40L15CW is a parametric equivalent offering identical electrical performance and thermal characteristics. This part differs in package specification, utilizing a TO-247-3 case instead of the TO-220-3 configuration. Selection of this substitute requires mechanical board layout modifications to accommodate the alternative Through Hole package footprint. Both components maintain obsolete product status and identical compliance certifications.

All three parts are classified as obsolete. Component selection should account for current inventory availability and long-term supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can STPS40L15CT be used as a direct replacement for 40L15CT?

A: Yes. STPS40L15CT maintains identical electrical specifications, diode configuration, voltage ratings, current ratings, forward voltage characteristics, thermal operating range, and package form factor (TO-220-3). Direct substitution is supported without circuit modifications.

Q: What is the difference between STPS40L15CT and STPS40L15CW?

A: Both parts provide identical electrical performance and thermal characteristics. The primary difference is the package specification. STPS40L15CT uses a TO-220-3 case, while STPS40L15CW uses a TO-247-3 case. Selection of STPS40L15CW requires mechanical board layout modifications to accommodate the alternative Through Hole package footprint.

Q: Are all three parts electrically equivalent?

A: Yes. The 40L15CT, STPS40L15CT, and STPS40L15CW all share identical electrical specifications including Schottky diode configuration, 15 V DC reverse voltage rating, 20 A average rectified current per diode, 410 mV forward voltage at 19 A, fast recovery speed characteristics, and -55°C to 125°C operating temperature range.

Q: What compliance certifications apply to these parts?

A: All three parts are RoHS non-compliant and REACH Unaffected. Moisture Sensitivity Level is 1 (Unlimited) for all parts.

Q: Are these parts still in production?

A: No. All three parts are classified as obsolete. Component selection should account for current inventory availability and long-term supply chain requirements.

Q: Can STPS40L15CW be used in place of 40L15CT without board modifications?

A: No. While STPS40L15CW provides identical electrical performance, it utilizes a TO-247-3 package instead of the TO-220-3 case. Board layout modifications are required to accommodate the alternative Through Hole package footprint.