VS-15CTQ035PBF Equivalent & Substitute Parts Reference

Part Overview

The VS-15CTQ035PBF is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division, classified under Diodes, Rectifiers. The device features a common cathode configuration, with peak DC reverse voltage of 35 V and forward current of 7.5A per diode. The product is supplied in a TO-220-3 package for through-hole mounting. The VS-15CTQ035PBF is discontinued at Digi-Key, making it necessary to identify direct substitutes and alternative models that match core electrical and mechanical parameters for legacy designs, repair, and ongoing manufacturing requirements.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V
Current - Average Rectified (Io) (per Diode)	7.5A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 7.5 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	800 µA @ 35 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts are selected strictly according to matching diode configuration (1 Pair Common Cathode), technology type (Schottky), maximum DC reverse voltage, average rectified current per diode, forward voltage at rated current, speed classification, reverse leakage, operating temperature, mounting type, and package/case. The groupings are based on compliance with these core parameters as listed. Only parts with through-hole TO-220 packaging, equivalent or higher ratings, identical configuration, and ROHS3/REACH compliance are included.

Parameter Comparison

Parameter	VS-15CTQ035PBF Vishay	VS-15CTQ035-M3 Vishay	MBR2535CTLG onsemi	STPS1545CT STMicroelectronics
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V	35 V	35 V	45 V
Current - Avg. Rectified (Io) (per Diode)	7.5A	15A	12.5A	7.5A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 7.5A	700 mV @ 15A	470 mV @ 12.5A	570 mV @ 7.5A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	800 µA @ 35 V	800 µA @ 35 V	5 mA @ 35 V	100 µA @ 45 V
Operating Temp - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C	175°C (Max)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The VS-15CTQ035PBF is listed as discontinued at Digi-Key, while substitute parts VS-15CTQ035-M3, MBR2535CTLG, and STPS1545CT are active and carry ROHS3/REACH compliance. All substitute models adhere to the designated diode configuration, technology, and package requirements. Part selection should prioritize procurement from active inventory and verified compliance status.

Frequently Asked Questions (FAQ)

Q1: What are the main criteria for selecting a substitute for VS-15CTQ035PBF?
A1: Key substitution criteria include diode configuration (1 Pair Common Cathode), Schottky technology, minimum or equal DC reverse voltage, average rectified current per diode, speed rating, reverse leakage, matching mounting type (Through Hole), and TO-220-3 packaging.

Q2: Are the substitute parts fully compatible with the same mechanical footprint as VS-15CTQ035PBF?
A2: All substitutes listed feature Through Hole mounting and TO-220-3 package/case, ensuring mechanical compatibility.

Q3: Do the substitutes meet current RoHS and REACH environmental compliance requirements?
A3: All listed substitutes are ROHS3 compliant and unaffected by REACH, matching the compliance status of the original part.

Q4: Is there any difference in the electrical ratings among the substitutes?
A4: Substitute parts show variations in maximum DC reverse voltage, average rectified current, forward voltage at rated current, reverse leakage, and operating temperature. All substitutes meet or exceed the stated minimum ratings for substitution based on the input parameters.

Q5: Can the listed substitutes be used as direct drop-in replacements in existing designs?
A5: Substitute parts comply with all specified electrical and mechanical parameters, supporting direct replacement where matching criteria are critical.

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