DSA20C150PB Equivalent & Substitute Parts

Part Overview

The DSA20C150PB is an active Schottky diode array manufactured by IXYS, configured as a 1 Pair Common Cathode arrangement rated for 150 V DC reverse voltage and 10 A average rectified current per diode. The device is packaged in a Through Hole TO-220-3 case and is RoHS3 compliant with unlimited moisture sensitivity rating. This component is used in power conversion and rectification applications requiring fast recovery characteristics. Substitute parts are identified to address inventory availability, extended lead times, or specific application requirements while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io) (per Diode)	10	A
Voltage - Forward (Vf) (Max) @ If	880 mV @ 10 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
Operating Temperature - Junction	-55 to 175	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the DSA20C150PB is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 150 V
Current - Average Rectified (Io) (per Diode): 10 A
Mounting Type: Through Hole
Package / Case: TO-220-3

Secondary Compatibility Parameters:

Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Forward Voltage (Vf): Acceptable range within application design margins
Reverse Leakage Current: Application-dependent tolerance
Operating Temperature Range: Must encompass application requirements

Substitute parts are classified into two categories:

Full Equivalents (MBR20150CT, MBR20H150CTG): Parts matching all primary criteria with identical or superior electrical performance characteristics.

Partial Equivalents (MBR10150CT-G1): Parts matching primary configuration and voltage criteria but with reduced current rating (5 A vs. 10 A per diode), suitable only for applications with lower current requirements.

Parameter Comparison

Parameter	DSA20C150PB (IXYS)	MBR20150CT (Diotec)	MBR10150CT-G1 (Diodes Inc.)	MBR20H150CTG (onsemi)
Manufacturer	IXYS	Diotec Semiconductor	Diodes Incorporated	onsemi
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)	150 V	150 V	150 V	150 V
Current - Average Rectified (Io) (per Diode)	10 A	10 A	5 A	10 A
Voltage - Forward (Vf) (Max) @ If	880 mV @ 10 A	850 mV @ 10 A	890 mV @ 5 A	680 mV @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	300 µA @ 150 V	5 µA @ 150 V	50 µA @ 150 V	50 µA @ 150 V
Operating Temperature - Junction	-55 to 175 °C	-50 to 175 °C	-55 to 175 °C	-20 to 150 °C
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	Not applicable	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

MBR20150CT (Diotec Semiconductor) is the primary recommended substitute for the DSA20C150PB. This part maintains full electrical equivalence with identical voltage and current ratings, matching diode configuration, and fast recovery speed characteristics. The MBR20150CT demonstrates superior reverse leakage performance (5 µA vs. 300 µA), resulting in lower standby power dissipation. Operating temperature range (-50 to 175 °C) encompasses the DSA20C150PB specification. RoHS compliance status is not applicable for this part. Inventory availability is substantial at 55,248 pieces.

MBR20H150CTG (onsemi) is a secondary full-equivalent substitute with identical voltage and current ratings. This part exhibits superior forward voltage characteristics (680 mV vs. 880 mV @ 10 A), resulting in reduced conduction losses and heat dissipation. The device is RoHS3 compliant and REACH unaffected. Operating temperature range (-20 to 150 °C) is narrower than the DSA20C150PB; applications requiring operation below -20 °C or above 150 °C must verify compatibility. Inventory availability is 1,357 pieces.

MBR10150CT-G1 (Diodes Incorporated) is a partial equivalent suitable only for applications with maximum current requirements of 5 A per diode. This part is not interchangeable with the DSA20C150PB in 10 A applications. The device is RoHS3 compliant with identical operating temperature range (-55 to 175 °C). Inventory availability is 19,400 pieces.

Selection between MBR20150CT and MBR20H150CTG depends on thermal design requirements and operating temperature constraints. Applications prioritizing low power dissipation should select MBR20H150CTG. Applications requiring extended low-temperature operation should select MBR20150CT or retain the DSA20C150PB.

Frequently Asked Questions (FAQ)

Q: Can MBR10150CT-G1 replace DSA20C150PB in all applications?

A: No. The MBR10150CT-G1 is rated for 5 A average rectified current per diode, while the DSA20C150PB is rated for 10 A. Direct substitution is only valid for applications with maximum current requirements not exceeding 5 A per diode. Applications requiring 10 A operation must use MBR20150CT or MBR20H150CTG.

Q: Are all substitute parts pin-compatible with DSA20C150PB?

A: All substitute parts use the TO-220-3 package with identical pin configuration and mechanical dimensions. Through-hole mounting compatibility is maintained across all parts. PCB layout modifications are not required.

Q: What is the impact of forward voltage differences between substitute parts?

A: Forward voltage differences directly affect conduction losses and thermal dissipation. MBR20H150CTG exhibits 200 mV lower forward voltage (680 mV vs. 880 mV @ 10 A) compared to DSA20C150PB, resulting in reduced power loss. Applications with tight thermal budgets benefit from this characteristic. MBR20150CT exhibits 30 mV lower forward voltage (850 mV vs. 880 mV @ 10 A), providing modest thermal improvement.

Q: Does reverse leakage current affect circuit performance?

A: Reverse leakage current impacts standby power consumption and circuit quiescent current. DSA20C150PB exhibits 300 µA leakage at 150 V, while MBR20150CT exhibits 5 µA and MBR20H150CTG exhibits 50 µA. Applications with stringent standby power requirements should select MBR20150CT. Difference is negligible in high-current rectification applications.

Q: What are the operating temperature constraints for each part?

A: DSA20C150PB and MBR10150CT-G1 operate from -55 to 175 °C. MBR20150CT operates from -50 to 175 °C, suitable for most applications but not for extreme low-temperature environments below -50 °C. MBR20H150CTG operates from -20 to 150 °C, with restricted low-temperature and high-temperature operation. Verify application temperature requirements before selection.

Q: Are RoHS compliance certifications equivalent across all parts?

A: DSA20C150PB and MBR10150CT-G1 are ROHS3 compliant. MBR20H150CTG is ROHS3 compliant. MBR20150CT has not applicable RoHS status. Applications requiring RoHS3 certification should select DSA20C150PB, MBR10150CT-G1, or MBR20H150CTG. MBR20150CT is suitable for applications without RoHS requirements.

Q: Can substitute parts be used in parallel with DSA20C150PB?

A: Parallel operation of different diode types is not recommended due to differences in forward voltage characteristics and reverse leakage current. Unequal current distribution and thermal stress result from these differences. Replace all diodes in a parallel configuration with identical part numbers.

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