12CWQ10FN Equivalent & Substitute Parts

Part Overview

The 12CWQ10FN is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 6 A average rectified current per diode. The device is housed in a TO-252-3 DPAK surface mount package with 2 leads plus tab (SC-63).

The 12CWQ10FN 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.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io) (per Diode)	6 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 6 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 12CWQ10FN is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Electrical Performance Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io) (per Diode): 6 A minimum
Voltage - Forward (Vf) (Max) @ If: Must be specified at rated current

Substitute parts must maintain identical package and configuration specifications. Electrical ratings may exceed the original part specifications without compromising compatibility. All substitute parts listed are active products with current manufacturing status and RoHS3 compliance, addressing the obsolescence of the original 12CWQ10FN.

Parameter Comparison

Parameter	12CWQ10FN	RB085BM-90TL	RB088BM100TL	RB095BM-90FHTL	STPS15H100CB	STPS15H100CB-TR	STPS15H100CBY-TR
Manufacturer	Vishay	Rohm	Rohm	Rohm	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
Technology	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V	90 V	100 V	90 V	100 V	100 V	100 V
Current - Average Rectified (Io) (per Diode)	6 A	5 A	10 A	6 A	7.5 A	7.5 A	7.5 A
Voltage - Forward (Vf) (Max) @ If	800 mV @ 6 A	830 mV @ 5 A	870 mV @ 5 A	750 mV @ 3 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)
Current - Reverse Leakage @ Vr	1 mA @ 100 V	150 µA @ 90 V	5 µA @ 100 V	150 µA @ 90 V	3 µA @ 100 V	3 µA @ 100 V	3 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 150°C	150°C (Max)	150°C	150°C (Max)	175°C (Max)	175°C (Max)	-40°C ~ 175°C
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	None specified	None specified	None specified	AEC-Q101	None specified	None specified	AEC-Q101

Engineering Selection Recommendations

Primary Substitutes (100 V Rated, Matched Current Capability):

The STPS15H100CB, STPS15H100CB-TR, and STPS15H100CBY-TR from STMicroelectronics are direct functional replacements. These parts maintain the 100 V reverse voltage rating of the original 12CWQ10FN and provide 7.5 A current capability, exceeding the 6 A specification. All three variants are active products with ROHS3 compliance. The STPS15H100CBY-TR variant includes AEC-Q101 automotive qualification and extended operating temperature range (-40°C ~ 175°C), suitable for applications requiring automotive-grade reliability.

Alternative Substitutes (Matched Current Capability, Reduced Voltage Rating):

The RB095BM-90FHTL from Rohm Semiconductor provides 6 A current capability matching the original specification. This part operates at 90 V reverse voltage, which is suitable for applications where the full 100 V rating is not required. The RB095BM-90FHTL includes AEC-Q101 automotive qualification and is an active product with ROHS3 compliance.

Higher Current Capability Substitute:

The RB088BM100TL from Rohm Semiconductor maintains the 100 V reverse voltage rating and provides 10 A current capability, offering enhanced performance margin. This part is an active product with ROHS3 compliance.

Lower Current Capability Substitute:

The RB085BM-90TL from Rohm Semiconductor provides 5 A current capability at 90 V reverse voltage. This part is suitable only for applications where current requirements do not exceed 5 A and voltage stress remains below 90 V.

All substitute parts share identical TO-252-3 DPAK packaging, 1 Pair Common Cathode configuration, Schottky technology, and fast recovery characteristics with the original 12CWQ10FN. All substitute parts are active products with current manufacturing status and RoHS3 compliance, addressing supply chain continuity and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the RB085BM-90TL be used as a direct replacement for the 12CWQ10FN?

A: The RB085BM-90TL shares the same package and diode configuration but operates at 90 V reverse voltage and 5 A current rating. It is suitable only for applications where the circuit operates below 90 V and current does not exceed 5 A. For applications requiring the full 100 V and 6 A specifications, this part is not appropriate.

Q: What is the difference between STPS15H100CB, STPS15H100CB-TR, and STPS15H100CBY-TR?

A: All three parts have identical electrical specifications: 100 V reverse voltage, 7.5 A current rating, and 800 mV forward voltage at 7.5 A. The primary differences are packaging format (Tube versus Cut Tape & Digi-Reel) and qualification level. The STPS15H100CBY-TR includes AEC-Q101 automotive qualification and extended operating temperature range (-40°C ~ 175°C), making it suitable for automotive applications.

Q: Is the RB095BM-90FHTL suitable for my application if I need 100 V rating?

A: The RB095BM-90FHTL operates at 90 V maximum reverse voltage. It is not suitable for applications requiring 100 V reverse voltage rating. For 100 V applications, select from STPS15H100CB variants or RB088BM100TL.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. The original 12CWQ10FN is RoHS non-compliant. Substitution with any listed part addresses RoHS compliance requirements.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive qualification standard. Parts bearing this qualification (RB095BM-90FHTL and STPS15H100CBY-TR) meet automotive industry reliability and testing requirements. These parts are suitable for automotive applications where such qualification is mandated.

Q: Can I use RB088BM100TL if my application only requires 6 A?

A: Yes. The RB088BM100TL provides 10 A current capability, which exceeds the 6 A requirement. Operating at lower current than the rated maximum does not compromise functionality or reliability. This part maintains the 100 V reverse voltage rating and is an active product with ROHS3 compliance.

Q: Are the package dimensions identical across all substitute parts?

A: Yes. All substitute parts use the TO-252-3 DPAK package with 2 leads plus tab (SC-63). Package footprint and pin configuration are identical, enabling direct PCB layout compatibility.

Q: What is the reverse leakage current difference between the 12CWQ10FN and substitute parts?

A: The 12CWQ10FN specifies 1 mA reverse leakage at 100 V. Substitute parts specify lower reverse leakage: RB088BM100TL and STPS15H100CB variants specify 3-5 µA at 100 V, while RB085BM-90TL and RB095BM-90FHTL specify 150 µA at 90 V. Lower reverse leakage in substitute parts represents improved performance characteristics.

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