VS-40CTQ045STRLPBF Equivalent & Substitute Parts

Part Overview

The VS-40CTQ045STRLPBF is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 45 V DC reverse voltage and 20 A average rectified current per diode. The device is housed in a TO-263-3 D2PAK surface mount package with 2 leads plus tab.

The VS-40CTQ045STRLPBF has been discontinued at DiGi Electronics. Equivalent and substitute parts are available from Vishay and STMicroelectronics that maintain the same electrical performance characteristics and package footprint, enabling direct replacement in existing designs.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io) (per Diode)	20 A
Voltage - Forward (Vf) (Max) @ If	530 mV @ 20 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	3 mA @ 45 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the VS-40CTQ045STRLPBF are categorized based on electrical and mechanical compatibility. The primary substitution criteria are:

Critical Parameters for Substitution:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 45 V
Current - Average Rectified (Io) (per Diode): 20 A or higher
Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
Mounting Type: Surface Mount

Direct Equivalents maintain identical electrical specifications and packaging, differing only in supplier packaging format (Tape & Reel, Tube, or Cut Tape).

Parametric Equivalents from STMicroelectronics provide the same 45 V / 20 A rating with compatible D2PAK packaging. These parts are functionally interchangeable in circuit applications.

Reduced Current Alternatives (12.5 A or 15 A rated) are suitable for applications where the full 20 A capability is not required, provided circuit design accommodates the lower current rating.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Ir @ Vr	Tj (Max)	Package	Product Status	Packaging Format
VS-40CTQ045STRLPBF	Vishay	45 V	20 A	530 mV @ 20 A	3 mA @ 45 V	150°C	TO-263-3 D2PAK	Discontinued	Bulk
VS-40CTQ045STRL-M3	Vishay	45 V	20 A	530 mV @ 20 A	3 mA @ 45 V	150°C	TO-263-3 D2PAK	Active	Tape & Reel (TR)
VS-40CTQ045S-M3	Vishay	45 V	20 A	530 mV @ 20 A	3 mA @ 45 V	150°C	TO-263-3 D2PAK	Active	Tube
STPS40L45CG-TR	STMicroelectronics	45 V	20 A	530 mV @ 20 A	600 µA @ 45 V	150°C	TO-263-3 D2PAK	Active	Cut Tape (CT) & Digi-Reel®
STPS40L45CGY-TR	STMicroelectronics	45 V	20 A	530 mV @ 20 A	600 µA @ 45 V	150°C	TO-263-3 D2PAK	Active	Tape & Reel (TR)
STPS41L45CG-TR	STMicroelectronics	45 V	20 A	530 mV @ 20 A	1.2 mA @ 45 V	150°C	TO-263-3 D2PAK	Active	Cut Tape (CT) & Digi-Reel®
DSSK28-0045BS-TRL	IXYS	45 V	15 A	480 mV @ 15 A	20 mA @ 45 V	150°C	TO-263-3 D2PAK	Active	Tape & Reel (TR)
STPS2545CG-TR	STMicroelectronics	45 V	12.5 A	570 mV @ 12.5 A	125 µA @ 45 V	175°C	TO-263-3 D2PAK	Active	Tape & Reel (TR)
STPS2545CGY-TR	STMicroelectronics	45 V	12.5 A	840 mV @ 25 A	125 µA @ 45 V	175°C	TO-263-3 D2PAK	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Replacement (Preferred):

VS-40CTQ045STRL-M3 and VS-40CTQ045S-M3 are Vishay parts with identical electrical specifications to the discontinued VS-40CTQ045STRLPBF. Both maintain the 45 V / 20 A rating, 530 mV forward voltage, and 3 mA reverse leakage. These parts differ only in packaging format (Tape & Reel versus Tube) and are suitable for direct substitution without circuit modification. Both are ROHS3 compliant and have unlimited moisture sensitivity rating.

Cross-Manufacturer Equivalents (45 V / 20 A):

STPS40L45CG-TR, STPS40L45CGY-TR, and STPS41L45CG-TR from STMicroelectronics provide equivalent 45 V / 20 A performance in the same TO-263-3 D2PAK package. All three maintain the 530 mV forward voltage specification. STPS40L45CGY-TR includes automotive qualification (AEC-Q101) and extended operating temperature range (-40°C to 150°C). STPS41L45CG-TR offers lower reverse leakage (1.2 mA) compared to the STPS40L45CG-TR variant (600 µA). All are ROHS3 compliant.

Reduced Current Alternatives:

DSSK28-0045BS-TRL (IXYS, 15 A) and STPS2545CG-TR / STPS2545CGY-TR (STMicroelectronics, 12.5 A) are suitable for applications where the full 20 A rating is not required. These parts maintain the 45 V reverse voltage rating and TO-263-3 D2PAK package. STPS2545CGY-TR includes automotive qualification (AEC-Q101) and higher maximum junction temperature (175°C). Selection of reduced current alternatives requires verification that circuit design does not exceed the lower current rating.

Product Status Consideration:

All recommended substitutes are currently active products with confirmed inventory availability, ensuring long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can VS-40CTQ045STRL-M3 be used as a direct replacement for VS-40CTQ045STRLPBF?

A: Yes. VS-40CTQ045STRL-M3 is a direct equivalent with identical electrical specifications (45 V, 20 A, 530 mV forward voltage, 3 mA reverse leakage) and the same TO-263-3 D2PAK package. The only difference is the packaging format (Tape & Reel versus bulk). No circuit modification is required.

Q: What is the difference between STPS40L45CG-TR and STPS40L45CGY-TR?

A: Both parts maintain identical 45 V / 20 A electrical specifications and TO-263-3 D2PAK packaging. STPS40L45CGY-TR includes automotive qualification (AEC-Q101) and extended operating temperature range (-40°C to 150°C), while STPS40L45CG-TR is rated to 150°C maximum junction temperature. Selection depends on application requirements for automotive compliance and temperature range.

Q: Can STPS2545CG-TR (12.5 A) replace VS-40CTQ045STRLPBF (20 A)?

A: STPS2545CG-TR maintains the same 45 V reverse voltage rating and TO-263-3 D2PAK package. However, the current rating is reduced from 20 A to 12.5 A. This part is suitable only for applications where the circuit design does not require the full 20 A capability. Circuit analysis is required to confirm compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and have unlimited moisture sensitivity rating (MSL 1), matching the compliance profile of the original VS-40CTQ045STRLPBF.

Q: What is the difference between Cut Tape and Tape & Reel packaging formats?

A: Both formats contain the same component. Cut Tape (CT) & Digi-Reel® is supplied in individual tape segments suitable for automated pick-and-place equipment. Tape & Reel (TR) is supplied on continuous reel format for high-volume production. Selection depends on assembly process requirements and volume.

Q: Does STPS41L45CG-TR offer any advantage over STPS40L45CG-TR?

A: Both parts maintain identical 45 V / 20 A electrical specifications and TO-263-3 D2PAK packaging. STPS41L45CG-TR features lower reverse leakage current (1.2 mA versus 600 µA at 45 V). Selection depends on application sensitivity to leakage current characteristics.

Q: Is DSSK28-0045BS-TRL (IXYS, 15 A) suitable for all applications using VS-40CTQ045STRLPBF?

A: DSSK28-0045BS-TRL maintains the 45 V reverse voltage rating and TO-263-3 D2PAK package. The current rating is reduced from 20 A to 15 A. This part is suitable only for applications where circuit design accommodates the lower current rating. Forward voltage is also lower (480 mV at 15 A), which may affect circuit performance in some applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message