DGSK40-025CS Equivalent & Substitute Parts

Part Overview

The DGSK40-025CS is a Schottky diode array manufactured by IXYS, configured as 1 pair common cathode with a maximum reverse voltage of 250 V and average rectified current of 31 A per diode. The device is housed in a TO-263-3 D2PAK surface mount package. This part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design and procurement requirements. Substitute parts must maintain functional compatibility within the specified electrical and mechanical parameters while considering current product availability and active status.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	250 V
Current - Average Rectified (Io) (per Diode)	31 A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 10 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Reverse Recovery Time (trr)	26 ns
Operating Temperature - Junction	-55°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DGSK40-025CS are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount
Moisture Sensitivity Level: 1 (Unlimited)

Electrical Parameter Constraints:

Voltage - DC Reverse (Vr) (Max): Substitute parts must support minimum 250 V or operate at reduced voltage ratings
Current - Average Rectified (Io) (per Diode): Substitute parts must support minimum 31 A or operate at reduced current ratings
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

The identified substitute parts operate at reduced voltage (200 V) and current (5 A to 10 A) ratings compared to the main part. These substitutes are suitable for applications where the full 250 V / 31 A capability is not required. All substitute parts maintain the same package configuration, diode configuration, and Schottky technology, ensuring mechanical and functional compatibility within their respective electrical specifications.

Parameter Comparison

Parameter	DGSK40-025CS (Main)	MBRB20200CT	MBRB20200CTG	MBRB20200CTT4G	SBR10U200CTB	SBRB20200CTT4G	STPS20200CG-TR	VBT10202C-M3/4W
Manufacturer	IXYS	Diodes Incorporated	onsemi	onsemi	Diodes Incorporated	onsemi	STMicroelectronics	Vishay General Semiconductor - Diodes Division
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
Technology	Schottky	Schottky	Schottky	Schottky	Super Barrier	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	250 V	200 V	200 V	200 V	200 V	200 V	200 V	200 V
Current - Average Rectified (Io) (per Diode)	31 A	10 A	10 A	10 A	5 A	10 A	10 A	5 A
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 10 A	890 mV @ 10 A	900 mV @ 10 A	900 mV @ 10 A	820 mV @ 5 A	900 mV @ 10 A	860 mV @ 10 A	880 mV @ 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)
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 150°C	-40°C ~ 175°C	-40°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Product Status	Obsolete	Active	Obsolete	Active	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Active Product Status Substitutes:

The following substitute parts are classified as active products and are recommended for new designs and ongoing procurement:

MBRB20200CT (Diodes Incorporated): Active status with AEC-Q101 automotive qualification. Operates at 200 V / 10 A with forward voltage of 890 mV @ 10 A. ROHS3 compliant.
MBRB20200CTT4G (onsemi): Active status, SWITCHMODE™ series. Operates at 200 V / 10 A with forward voltage of 900 mV @ 10 A. ROHS3 compliant. Supplied in Cut Tape (CT) & Digi-Reel® packaging.
SBRB20200CTT4G (onsemi): Active status, SWITCHMODE™ series. Operates at 200 V / 10 A with forward voltage of 900 mV @ 10 A. ROHS3 compliant. Supplied in Tape & Reel (TR) packaging.
STPS20200CG-TR (STMicroelectronics): Active status. Operates at 200 V / 10 A with forward voltage of 860 mV @ 10 A. ROHS3 compliant. Supplied in Cut Tape (CT) & Digi-Reel® packaging.
VBT10202C-M3/4W (Vishay General Semiconductor - Diodes Division): Active status, TMBS® series. Operates at 200 V / 5 A with forward voltage of 880 mV @ 5 A. ROHS3 compliant.

Obsolete Product Status Substitutes:

The following substitute parts are classified as obsolete and are not recommended for new designs:

MBRB20200CTG (onsemi): Obsolete status, SWITCHMODE™ series. Operates at 200 V / 10 A.
SBR10U200CTB (Diodes Incorporated): Obsolete status, SBR® series. Operates at 200 V / 5 A with Super Barrier technology.

Voltage and Current Derating:

All identified substitute parts operate at reduced voltage (200 V versus 250 V) and reduced current (5 A to 10 A versus 31 A) compared to the main part DGSK40-025CS. Selection of substitute parts must account for these electrical parameter reductions. Applications requiring the full 250 V / 31 A capability cannot be directly substituted with the identified parts.

Compliance and Certification:

All active substitute parts are ROHS3 compliant. MBRB20200CT includes AEC-Q101 automotive qualification. All parts maintain MSL 1 (Unlimited) moisture sensitivity level, consistent with the main part.

Frequently Asked Questions (FAQ)

Q: Can MBRB20200CT directly replace DGSK40-025CS in all applications?

A: MBRB20200CT shares the same package configuration (TO-263-3 D2PAK) and diode configuration (1 Pair Common Cathode) as DGSK40-025CS. However, it operates at reduced voltage (200 V versus 250 V) and reduced current (10 A versus 31 A). Direct substitution is only suitable for applications where the electrical requirements do not exceed 200 V and 10 A per diode.

Q: What is the difference between MBRB20200CTT4G and MBRB20200CT?

A: Both parts are manufactured by onsemi and operate at identical electrical specifications (200 V / 10 A). The primary difference is packaging: MBRB20200CT is supplied in Tube packaging, while MBRB20200CTT4G is supplied in Cut Tape (CT) & Digi-Reel® packaging. Both are active products.

Q: Why are some substitute parts listed as obsolete?

A: Obsolete parts are no longer in active production. While they may be available from existing inventory, they are not recommended for new designs due to uncertain future availability and lack of ongoing manufacturer support.

Q: Are all substitute parts ROHS3 compliant?

A: All identified substitute parts are ROHS3 compliant. The main part DGSK40-025CS does not specify RoHS status.

Q: What is the significance of the SWITCHMODE™ series designation?

A: SWITCHMODE™ is a product series designation from onsemi. Parts bearing this designation (MBRB20200CTG, MBRB20200CTT4G, SBRB20200CTT4G) are optimized for switching applications. This designation does not affect electrical compatibility with the main part.

Q: Can VBT10202C-M3/4W be used as a substitute for higher current applications?

A: No. VBT10202C-M3/4W is rated for 5 A per diode, which is lower than the main part's 31 A rating. It is suitable only for applications requiring 5 A or less per diode.

Q: What is the difference between Schottky and Super Barrier technology in the substitute parts?

A: SBR10U200CTB uses Super Barrier technology, while other substitutes use standard Schottky technology. Both are fast recovery diode technologies. The Super Barrier variant (SBR10U200CTB) exhibits lower forward voltage (820 mV @ 5 A) compared to standard Schottky substitutes.

Q: Are there any temperature range differences between substitute parts?

A: Yes. Most substitute parts operate over -55°C to -65°C minimum temperature and 150°C to 175°C maximum temperature. STPS20200CG-TR and VBT10202C-M3/4W have a minimum operating temperature of -40°C. Applications requiring operation below -40°C should select substitutes with -55°C or -65°C minimum ratings.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: Tube (MBRB20200CT, VBT10202C-M3/4W, SBR10U200CTB), Cut Tape (CT) & Digi-Reel® (MBRB20200CTT4G, STPS20200CG-TR), and Tape & Reel (TR) (SBRB20200CTT4G). Selection depends on procurement and assembly requirements.

Q: Is AEC-Q101 qualification important for my application?

A: AEC-Q101 qualification indicates automotive-grade reliability testing. MBRB20200CT is the only substitute part with this qualification. If automotive-grade reliability is required, MBRB20200CT is the appropriate selection.

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