Equivalent & Substitute Parts for 6CWQ10FN

Part Overview

The 6CWQ10FN is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component is a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 3.5 A average rectified current per diode, housed in a TO-252-3 DPAK surface mount package. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity.

Key Parameters

Parameter	6CWQ10FN
Manufacturer	Vishay General Semiconductor - Diodes Division
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io) (per Diode)	3.5 A
Voltage - Forward (Vf) (Max) @ If	810 mV @ 3 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	1 mA @ 100 V
Operating Temperature - Junction	-40°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the 6CWQ10FN is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky or Super Barrier
Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount

Electrical Performance Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Current - Average Rectified (Io) (per Diode): Must equal or exceed 3.5 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Substitute parts are grouped into two categories based on current rating capability:

Category A - Standard Current Rating (5 A): Parts rated for 5 A average rectified current, suitable for applications where the 3.5 A requirement is met with margin.

Category B - Enhanced Current Rating (7.5 A - 10 A): Parts rated for 7.5 A or 10 A average rectified current, providing additional thermal and current handling capacity for demanding applications.

All substitute parts maintain the identical package footprint and pinout configuration, enabling direct board-level replacement without layout modification.

Parameter Comparison

Parameter	6CWQ10FN	RB085BM-90TL	RB085BM-90FHTL	RB088BM100TL	RB088BM100FHTL	SBR10100CTL-13	STPS15H100CB	STPS15H100CB-TR	STPS15H100CBY-TR
Manufacturer	Vishay	Rohm	Rohm	Rohm	Rohm	Diodes Inc.	STMicroelectronics	STMicroelectronics	STMicroelectronics
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Super Barrier	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V	90 V	90 V	100 V	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io) (per Diode)	3.5 A	5 A	10 A	10 A	10 A	5 A	7.5 A	7.5 A	7.5 A
Voltage - Forward (Vf) (Max) @ If	810 mV @ 3 A	830 mV @ 5 A	830 mV @ 5 A	870 mV @ 5 A	870 mV @ 5 A	840 mV @ 5 A	800 mV @ 7.5 A	800 mV @ 7.5 A	800 mV @ 7.5 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	1 mA @ 100 V	150 µA @ 90 V	150 µA @ 90 V	5 µA @ 100 V	5 µA @ 100 V	200 µA @ 100 V	3 µA @ 100 V	3 µA @ 100 V	3 µA @ 100 V
Operating Temperature - Junction	-40°C ~ 150°C	150°C (Max)	150°C (Max)	150°C	150°C (Max)	-65°C ~ 175°C	175°C (Max)	175°C (Max)	-40°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Product Status	Obsolete	Active	Not For New Designs	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q101 Qualification	Not specified	Not specified	Yes	Not specified	Yes	Not specified	Not specified	Not specified	Yes

Engineering Selection Recommendations

For Active Production and New Designs:

The following parts are recommended for new design implementations and ongoing production due to active product status and full RoHS3 compliance:

Primary Recommendation - Voltage and Current Matched:

RB088BM100TL (Rohm Semiconductor): Maintains 100 V reverse voltage rating with 10 A current capability. Active product status. ROHS3 compliant. Available in Tape & Reel packaging with 3800 pcs in stock.
RB088BM100FHTL (Rohm Semiconductor): Identical electrical specifications to RB088BM100TL with automotive-grade qualification (AEC-Q101). Active product status. ROHS3 compliant. Available in Cut Tape & Digi-Reel packaging with 3366 pcs in stock.

Secondary Recommendation - Enhanced Thermal Performance:

STPS15H100CB-TR (STMicroelectronics): Maintains 100 V reverse voltage with 7.5 A current capability. Maximum junction temperature of 175°C provides enhanced thermal margin. Active product status. ROHS3 compliant. Available in Cut Tape & Digi-Reel packaging with 15471 pcs in stock.
STPS15H100CBY-TR (STMicroelectronics): Identical to STPS15H100CB-TR with automotive-grade qualification (AEC-Q101) and extended operating temperature range (-40°C ~ 175°C). Active product status. ROHS3 compliant. Available in Cut Tape & Digi-Reel packaging with 5300 pcs in stock.

Alternative for Standard Current Applications:

SBR10100CTL-13 (Diodes Incorporated): Super Barrier technology with 100 V reverse voltage and 5 A current capability. Extended operating temperature range (-65°C ~ 175°C). Active product status. ROHS3 compliant. Available in Tape & Reel packaging with 10300 pcs in stock.

Not Recommended for New Designs:

RB085BM-90FHTL (Rohm Semiconductor): Marked as "Not For New Designs" despite active AEC-Q101 qualification. Reduced reverse voltage rating (90 V) compared to original specification.

Not Suitable:

RB085BM-90TL (Rohm Semiconductor): Reduced reverse voltage rating (90 V) does not meet the 100 V requirement of the original part.

Frequently Asked Questions (FAQ)

Q: Can RB085BM-90TL or RB085BM-90FHTL be used as direct replacements for 6CWQ10FN?

A: No. While these parts share identical package and diode configuration, the maximum reverse voltage rating is 90 V, which is below the 100 V specification of the 6CWQ10FN. Applications requiring 100 V reverse voltage protection cannot use these parts.

Q: What is the difference between RB088BM100TL and RB088BM100FHTL?

A: Both parts have identical electrical specifications (100 V, 10 A). The primary difference is that RB088BM100FHTL includes automotive-grade qualification (AEC-Q101) and is available in Cut Tape & Digi-Reel packaging, while RB088BM100TL is available in Tape & Reel packaging. Selection depends on packaging requirements and automotive qualification necessity.

Q: Why do some substitute parts have higher current ratings (10 A) than the original 6CWQ10FN (3.5 A)?

A: Higher current ratings provide additional design margin and thermal capacity. These parts are fully compatible with applications designed for 3.5 A operation, as they can handle the lower current without degradation. The higher rating allows for future design flexibility and improved reliability in thermal-constrained environments.

Q: Is the 6CWQ10FN RoHS compliant?

A: No. The 6CWQ10FN is RoHS non-compliant. All recommended substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the difference between Schottky and Super Barrier technology in these diode arrays?

A: Both technologies are fast-recovery rectifier types suitable for this application. The SBR10100CTL-13 uses Super Barrier technology, while other substitutes use Schottky technology. Both meet the fast recovery specification (≤ 500 ns, > 200 mA). Selection between them depends on specific application requirements and forward voltage characteristics.

Q: Can STPS15H100CB and STPS15H100CB-TR be used interchangeably?

A: Yes. These parts have identical electrical specifications and package. The difference is packaging format: STPS15H100CB is supplied in Tube packaging, while STPS15H100CB-TR is supplied in Cut Tape & Digi-Reel packaging. Selection depends on production handling and assembly equipment compatibility.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive electronics qualification standard. Parts bearing this qualification have undergone rigorous testing for automotive applications, including thermal cycling, vibration, and reliability testing. This qualification is required for automotive and mission-critical applications.

Q: Are all substitute parts pin-compatible with the 6CWQ10FN?

A: Yes. All substitute parts use the TO-252-3 DPAK package with identical pinout (2 Leads + Tab, SC-63). Direct board-level replacement is possible without PCB layout modification.

Q: Which substitute part offers the best thermal performance?

A: STPS15H100CBY-TR and STPS15H100CB-TR both offer maximum junction temperature of 175°C, compared to 150°C for the original 6CWQ10FN. STPS15H100CBY-TR additionally provides an extended operating temperature range of -40°C ~ 175°C and AEC-Q101 qualification, making it suitable for demanding thermal environments.

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