CUD10-06 BK Equivalent & Substitute Parts

Part Overview

The CUD10-06 BK is a general-purpose rectifier diode manufactured by Central Semiconductor Corp, rated for 600V DC reverse voltage and 10A average rectified current in a surface mount DPAK package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The CUD10-06 BK features fast recovery characteristics with a reverse recovery time of 35 ns, forward voltage of 1.7V at 10A, and operates across a junction temperature range of -65°C to 150°C. The part is RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	10	A
Voltage - Forward (Vf) (Max) @ If	1.7 @ 10 A	V
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CUD10-06 BK is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600V
Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Current Rating Considerations: The CUD10-06 BK is rated for 10A average rectified current. Substitute parts may have equal or higher current ratings (10A, 12A) while maintaining the same voltage class and package. Parts with lower current ratings are not suitable substitutes.

Recovery Speed: The CUD10-06 BK operates as a fast recovery diode with trr of 35 ns. Substitute parts must maintain fast recovery characteristics (≤ 500ns, > 200mA).

Forward Voltage: Forward voltage specifications vary among substitutes based on current rating and technology. Parts with higher current ratings typically exhibit different forward voltage characteristics.

Temperature Range: The CUD10-06 BK operates from -65°C to 150°C. Substitute parts with extended temperature ranges (-65°C to 175°C) provide additional operational margin and are acceptable.

Parameter Comparison

Parameter	CUD10-06 BK	SDURD1060	VS-12EWH06FN-M3	VS-12EWH06FNTRR-M3	VS-5EWX06FNTRR-M3	VS-6EWH06FN-M3	VS-6EWX06FNHM3
Manufacturer	Central Semiconductor Corp	SMC Diode Solutions	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	10 A	10 A	12 A	12 A	5 A	6 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 10 A	1.66 V @ 10 A	2.5 V @ 12 A	2.5 V @ 12 A	2.9 V @ 5 A	2.1 V @ 6 A	3.1 V @ 6 A
Reverse Recovery Time (trr)	35 ns	35 ns	Not specified	26 ns	18 ns	27 ns	19 ns
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Standard Recovery >500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	20 µA @ 600 V	50 µA @ 600 V	20 µA @ 600 V
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
Operating Temperature - Junction	-65 to 150 °C	-55 to 150 °C	-65 to 175 °C	-65 to 175 °C	-65 to 175 °C	-65 to 175 °C	-65 to 175 °C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Series			FRED Pt®	FRED Pt®	FRED Pt®	FRED Pt®	FRED Pt®
Grade							Automotive
Qualification							AEC-Q101

Engineering Selection Recommendations

Primary Substitute - Direct Replacement:

SDURD1060 (SMC Diode Solutions) is the primary substitute for CUD10-06 BK. This part maintains identical electrical specifications: 600V reverse voltage, 10A average rectified current, 1.66V forward voltage at 10A, and 35 ns reverse recovery time. The SDURD1060 is active in production status with ROHS3 compliance and MSL 1 rating. Operating temperature range is -55°C to 150°C, which covers the original part's range. This part is available in Tape & Reel packaging with 2405 pieces in stock.

Secondary Substitutes - Higher Current Rating:

VS-12EWH06FNTRR-M3 (Vishay General Semiconductor) provides a higher current rating of 12A while maintaining 600V reverse voltage and DPAK package compatibility. This part features fast recovery characteristics with 26 ns reverse recovery time and extended operating temperature range of -65°C to 175°C. It is active in production status with ROHS3 compliance. The forward voltage is 2.5V at 12A. This part is suitable for applications where higher current capacity provides design margin.

VS-12EWH06FN-M3 (Vishay General Semiconductor) is functionally equivalent to VS-12EWH06FNTRR-M3 but supplied in Tube packaging rather than Tape & Reel. Both parts share identical electrical specifications and temperature range.

Current-Matched Alternatives:

VS-6EWH06FN-M3 (Vishay General Semiconductor) provides 6A current rating with 600V reverse voltage, fast recovery (27 ns trr), and extended temperature range (-65°C to 175°C). Forward voltage is 2.1V at 6A. This part is suitable for applications with lower current requirements.

VS-6EWX06FNHM3 (Vishay General Semiconductor) is an automotive-grade variant with AEC-Q101 qualification, rated for 6A at 600V with 19 ns reverse recovery time. Forward voltage is 3.1V at 6A. This part is appropriate for automotive applications requiring qualification compliance.

VS-5EWX06FNTRR-M3 (Vishay General Semiconductor) provides 5A current rating with 600V reverse voltage and 18 ns reverse recovery time. This part is suitable for lower-current applications.

Product Status Consideration:

All substitute parts listed are active in production status, ensuring long-term availability and supply chain continuity. The CUD10-06 BK obsolete status necessitates transition to one of these active alternatives.

Frequently Asked Questions (FAQ)

Q: Can SDURD1060 be used as a direct replacement for CUD10-06 BK?

A: Yes. SDURD1060 maintains identical voltage (600V), current (10A), and package specifications (TO-252-3 DPAK). Forward voltage is 1.66V at 10A compared to 1.7V, and reverse recovery time is 35 ns for both parts. Both are ROHS3 compliant with MSL 1 rating. The operating temperature range of SDURD1060 (-55°C to 150°C) covers the original part's range.

Q: What is the difference between VS-12EWH06FN-M3 and VS-12EWH06FNTRR-M3?

A: Both parts are electrically identical with 12A current rating, 600V reverse voltage, and DPAK package. The primary difference is packaging: VS-12EWH06FN-M3 is supplied in Tube, while VS-12EWH06FNTRR-M3 is supplied in Tape & Reel (TR). VS-12EWH06FNTRR-M3 has a specified reverse recovery time of 26 ns, while VS-12EWH06FN-M3 does not specify this parameter.

Q: Can I use a 12A-rated diode in place of a 10A-rated diode?

A: Yes, provided all other parameters match. VS-12EWH06FNTRR-M3 and VS-12EWH06FN-M3 both maintain 600V reverse voltage, DPAK package, ROHS3 compliance, and MSL 1 rating. The higher current rating provides additional design margin. However, forward voltage increases to 2.5V at 12A compared to 1.7V at 10A for the original part.

Q: What is the difference between standard recovery and fast recovery diodes?

A: Recovery speed is classified by reverse recovery time (trr). Fast recovery diodes have trr ≤ 500ns with > 200mA current. The CUD10-06 BK has 35 ns trr. VS-12EWH06FN-M3 is classified as standard recovery (>500ns), while all other substitutes maintain fast recovery characteristics. Fast recovery diodes are suitable for high-frequency switching applications.

Q: Is VS-6EWX06FNHM3 suitable for non-automotive applications?

A: Yes. VS-6EWX06FNHM3 is an automotive-grade part with AEC-Q101 qualification, but it functions as a general-purpose rectifier diode. The automotive qualification indicates additional quality and reliability testing. This part is suitable for any application requiring 6A at 600V with fast recovery characteristics.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level (MSL) 1 indicates the component has unlimited shelf life without special moisture control measures. All listed parts have MSL 1 rating, meaning they do not require dry-pack storage or baking procedures before assembly.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the original CUD10-06 BK part.

Q: What is the FRED Pt® series designation?

A: FRED Pt® is a Vishay product series designation for fast recovery epitaxial diodes. All Vishay substitute parts in this list belong to the FRED Pt® series, indicating they are fast recovery diodes with optimized performance characteristics.

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