DST20150C Schottky Diode Array Equivalent & Substitute Parts

Part Overview

The DST20150C is a Schottky diode array manufactured by Littelfuse Inc., configured as a 1 Pair Common Cathode design rated for 150 V DC reverse voltage and 10 A average rectified current per diode. This through-hole TO-220-3 package component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, higher current ratings, improved thermal performance, or enhanced availability from alternative manufacturers while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io) (per Diode)	10	A
Voltage - Forward (Vf) (Max) @ If	1.2	V @ 10 A
Technology	Schottky	—
Diode Configuration	1 Pair Common Cathode	—
Package / Case	TO-220-3	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	150	µA @ 150 V
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the DST20150C are grouped based on strict electrical and mechanical parameter compatibility. The primary substitution criteria are:

Critical Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): Must equal 150 V
Diode Configuration: Must be 1 Pair Common Cathode
Technology: Must be Schottky
Package / Case: Must be TO-220-3
Mounting Type: Must be Through Hole

Current Rating Grouping: Substitute parts are organized by average rectified current (Io) per diode. Parts with equal or higher current ratings are electrically compatible with the DST20150C (10 A rating) within the same voltage and configuration class. Parts with lower current ratings are not suitable for direct substitution.

Acceptable Substitute Categories:

Direct Equivalents (10 A rating): DSA20C150PB, MBR20H150CTG, STPS20150CT
Higher Current Capacity (15 A and above): STPS30150CT, STPS40150CT, DSA60C150PB, STPS60150CT
Lower Current Capacity (5 A rating): MBR10150CT-G1, STPS10150CT (not recommended for 10 A applications)

All substitute parts maintain 150 V reverse voltage rating, TO-220-3 package configuration, and through-hole mounting compatibility.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io per Diode [A]	Vf (Max) @ If [V]	Reverse Leakage @ Vr [µA]	Tj (Max) [°C]	Speed	Package
DST20150C	Littelfuse Inc.	150	10	1.2 @ 10 A	150 @ 150 V	150	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
DSA20C150PB	IXYS	150	10	0.88 @ 10 A	300 @ 150 V	175	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
DSA60C150PB	IXYS	150	30	0.93 @ 30 A	450 @ 150 V	175	No Recovery Time > 500mA	TO-220-3
MBR10150CT-G1	Diodes Incorporated	150	5	0.89 @ 5 A	50 @ 150 V	175	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
MBR20H150CTG	onsemi	150	10	0.68 @ 10 A	50 @ 150 V	150	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
STPS10150CT	STMicroelectronics	150	5	0.92 @ 5 A	2 @ 150 V	175	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
STPS20150CT	STMicroelectronics	150	10	0.92 @ 10 A	5 @ 150 V	175	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
STPS30150CT	STMicroelectronics	150	15	0.92 @ 15 A	6.5 @ 150 V	175	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
STPS40150CT	STMicroelectronics	150	20	0.92 @ 20 A	8 @ 150 V	175	Fast Recovery ≤ 500ns, > 200mA	TO-220-3
STPS60150CT	STMicroelectronics	150	30	0.94 @ 30 A	15 @ 150 V	175	Fast Recovery ≤ 500ns, > 200mA	TO-220-3

Engineering Selection Recommendations

Direct Substitution (Equivalent Current Rating - 10 A):

DSA20C150PB (IXYS), MBR20H150CTG (onsemi), and STPS20150CT (STMicroelectronics) are electrically and mechanically equivalent to DST20150C. All three maintain 150 V reverse voltage, 10 A per-diode current rating, TO-220-3 package configuration, and through-hole mounting. All substitute parts are ROHS3 compliant and Active product status. Selection among these three is based on availability, forward voltage characteristics, and reverse leakage specifications as provided in the parameter comparison table.

Higher Current Capacity Substitution (15 A to 30 A):

STPS30150CT (15 A), STPS40150CT (20 A), DSA60C150PB (30 A), and STPS60150CT (30 A) provide increased current handling capacity while maintaining 150 V reverse voltage and TO-220-3 package compatibility. These parts are suitable for applications where the DST20150C current rating is insufficient. All are ROHS3 compliant and Active product status.

Lower Current Capacity Parts (5 A):

MBR10150CT-G1 and STPS10150CT are rated for 5 A per diode and are not suitable for direct substitution in applications requiring the full 10 A capacity of the DST20150C. These parts are electrically compatible only for applications with reduced current requirements.

Compliance and Certification:

All listed substitute parts maintain ROHS3 compliance, REACH Unaffected status, and Active product status. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts except MBR20H150CTG, which is Not Applicable. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can STPS10150CT or MBR10150CT-G1 replace DST20150C in a 10 A application?

A: No. STPS10150CT and MBR10150CT-G1 are rated for 5 A per diode, which is below the 10 A requirement of DST20150C. These parts are suitable only for applications with 5 A or lower current requirements.

Q: Can higher-rated parts like STPS40150CT (20 A) be used instead of DST20150C (10 A)?

A: Yes. STPS40150CT and other higher-rated parts (STPS30150CT, STPS60150CT, DSA60C150PB) maintain the same 150 V reverse voltage and TO-220-3 package configuration. Higher current ratings provide design margin and are electrically compatible with 10 A applications. Selection depends on thermal management requirements and circuit design considerations.

Q: What is the difference between DSA20C150PB and STPS20150CT?

A: Both are 10 A, 150 V Schottky diode arrays in TO-220-3 packages. DSA20C150PB (IXYS) has a forward voltage of 0.88 V @ 10 A and reverse leakage of 300 µA @ 150 V. STPS20150CT (STMicroelectronics) has a forward voltage of 0.92 V @ 10 A and reverse leakage of 5 µA @ 150 V. STPS20150CT exhibits significantly lower reverse leakage. Both are ROHS3 compliant and Active status.

Q: Are all substitute parts available in the same TO-220-3 package?

A: Yes. All listed substitute parts use TO-220-3 package configuration with through-hole mounting, ensuring mechanical and thermal interface compatibility with DST20150C.

Q: What is the maximum junction temperature difference between DST20150C and substitute parts?

A: DST20150C and MBR20H150CTG are rated to 150°C maximum junction temperature. DSA20C150PB, DSA60C150PB, MBR10150CT-G1, STPS10150CT, STPS20150CT, STPS30150CT, STPS40150CT, and STPS60150CT are rated to 175°C maximum junction temperature. Higher temperature ratings provide additional thermal margin in high-ambient or high-power applications.

Q: Is MSL (Moisture Sensitivity Level) a factor in selecting substitute parts?

A: MSL is specified as 1 (Unlimited) for most substitute parts, indicating no moisture sensitivity restrictions. MBR20H150CTG specifies MSL as Not Applicable. This parameter does not restrict substitution compatibility.

Q: Do all substitute parts meet ROHS3 compliance?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH Unaffected, matching the compliance status of DST20150C.

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