SR16150PTH Equivalent & Substitute Parts

Part Overview

The SR16150PTH is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as 1 pair common cathode with 150 V reverse voltage rating and 16 A average rectified current per diode. The device is packaged in TO-247-3 through-hole format and qualified to AEC-Q101 automotive standards. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility within specified parameter ranges.

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)	16	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 8 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	100	µA @ 150 V
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-247-3	—
RoHS Status	ROHS3 Compliant	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the SR16150PTH is determined by strict equivalence and compatibility across the following critical parameters:

Mandatory Matching Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 150 V
Mounting Type: Through Hole
Package / Case: TO-247-3

Allowable Variation Parameters:

Current - Average Rectified (Io) (per Diode): Equal to or greater than 16 A
Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
Current - Reverse Leakage @ Vr: Within acceptable operating range
Operating Temperature - Junction: Equal to or greater than -55°C to 150°C minimum

Substitute parts are grouped into two categories: parametric equivalents (matching all electrical specifications) and similar parts (matching core electrical and mechanical specifications with higher current ratings or extended temperature ranges).

Parameter Comparison

Part Number	Manufacturer	Io (per Diode)	Vf (Max) @ If	Vr (Max)	Leakage @ Vr	Tj (Operating)	Product Status
SR16150PTH	Taiwan Semiconductor	16 A	1 V @ 8 A	150 V	100 µA @ 150 V	-55 to 150°C	Discontinued
SR16150PT C0G	Taiwan Semiconductor	16 A	1 V @ 8 A	150 V	100 µA @ 150 V	-55 to 150°C	Active
STPS30150CW	STMicroelectronics	15 A	920 mV @ 15 A	150 V	6.5 µA @ 150 V	-55 to 175°C	Active
STPS40150CW	STMicroelectronics	20 A	920 mV @ 20 A	150 V	8 µA @ 150 V	-55 to 175°C	Active
STPS61150CW	STMicroelectronics	30 A	840 mV @ 30 A	150 V	20 µA @ 150 V	-55 to 175°C	Active
STPS80150CW	STMicroelectronics	40 A	840 mV @ 40 A	150 V	30 µA @ 150 V	-55 to 175°C	Active
DSSK60-015A	IXYS	30 A	810 mV @ 30 A	150 V	2 mA @ 150 V	-55 to 175°C	Active
DSA70C150HB	IXYS	35 A	900 mV @ 35 A	150 V	680 µA @ 150 V	-55 to 175°C	Active
MBR30150WT	SMC Diode Solutions	Not specified	1 V @ 15 A	150 V	100 µA @ 150 V	-55 to 150°C	Active

Engineering Selection Recommendations

Primary Recommendation: SR16150PT C0G

The SR16150PT C0G is the direct parametric equivalent to the SR16150PTH. Manufactured by Taiwan Semiconductor Corporation, this part maintains identical electrical specifications across all critical parameters: 16 A average rectified current, 150 V reverse voltage, 1 V forward voltage at 8 A, and -55°C to 150°C operating temperature range. The part is currently active in inventory with 964 units available. RoHS3 compliance and AEC-Q101 qualification are maintained. This substitution requires no circuit redesign or thermal analysis.

Secondary Recommendations: STMicroelectronics STPS Series

The STPS30150CW, STPS40150CW, STPS61150CW, and STPS80150CW are active alternatives from STMicroelectronics. These parts maintain the 150 V reverse voltage specification and TO-247-3 package format. Current ratings range from 15 A to 40 A, accommodating applications requiring equal or higher current capacity. Extended operating temperature range to 175°C provides thermal margin. Forward voltage characteristics are comparable or superior. RoHS3 compliance is maintained across all variants.

Tertiary Recommendations: IXYS and SMC Alternatives

The DSSK60-015A (IXYS, 30 A) and DSA70C150HB (IXYS, 35 A) provide higher current ratings with 150 V reverse voltage in TO-247-3 packaging. The MBR30150WT (SMC Diode Solutions) offers electrical compatibility with 150 V rating and comparable forward voltage characteristics. All alternatives maintain RoHS3 compliance and through-hole mounting compatibility.

Selection Criteria:

For direct replacement without circuit modification: SR16150PT C0G
For applications requiring higher current capacity: STPS40150CW (20 A), STPS61150CW (30 A), or STPS80150CW (40 A)
For extended temperature operation: Any STMicroelectronics or IXYS alternative (175°C maximum junction temperature)
For inventory availability: STPS61150CW (5876 units), STPS40150CW (2700 units), or DSA70C150HB (6390 units)

Frequently Asked Questions (FAQ)

Q: Can the SR16150PTH be directly replaced with SR16150PT C0G?

A: Yes. The SR16150PT C0G is a parametric equivalent with identical electrical and mechanical specifications. No circuit modification is required. Both parts are configured as 1 pair common cathode Schottky diodes with 150 V reverse voltage, 16 A average rectified current, and TO-247-3 through-hole packaging.

Q: What is the difference between the SR16150PTH and STPS40150CW?

A: The STPS40150CW has a higher current rating (20 A versus 16 A) and extended operating temperature range (-55°C to 175°C versus -55°C to 150°C). Both maintain 150 V reverse voltage and TO-247-3 packaging. The STPS40150CW is suitable for applications requiring higher current capacity or thermal margin.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed maintain RoHS3 compliance. The SR16150PTH, SR16150PT C0G, and all STMicroelectronics, IXYS, and SMC alternatives are ROHS3 Compliant.

Q: Can I use a higher current-rated diode as a substitute?

A: Yes. Diodes with current ratings equal to or greater than 16 A are suitable substitutes provided all other parameters match: 150 V reverse voltage, Schottky technology, 1 pair common cathode configuration, and TO-247-3 packaging. Higher current ratings do not degrade circuit performance in applications designed for 16 A operation.

Q: What is the significance of the TO-247-3 package specification?

A: The TO-247-3 package is a three-lead through-hole format with specific pin configuration and thermal characteristics. All substitute parts must use identical TO-247-3 or TO-247AD packaging to ensure mechanical and thermal compatibility with existing PCB layouts and heat sinking arrangements.

Q: How do forward voltage differences affect substitution?

A: Forward voltage variations between 810 mV and 1 V at rated current are within acceptable operating ranges for Schottky diode applications. The SR16150PTH specifies 1 V at 8 A. Substitute parts with lower forward voltage (such as STPS61150CW at 840 mV at 30 A) provide improved efficiency with no negative impact on circuit function.

Q: Is the MBR30150WT a suitable substitute if current rating is not specified?

A: The MBR30150WT maintains 150 V reverse voltage, 1 pair common cathode configuration, and TO-247-3 packaging. Forward voltage is specified at 1 V at 15 A, indicating current capacity at or above 15 A. This part is suitable for applications where the 16 A specification of the SR16150PTH is not exceeded.

Q: What is the impact of reverse leakage current differences?

A: Reverse leakage current variations (ranging from 6.5 µA to 2 mA at 150 V across substitute options) are within acceptable ranges for rectifier applications. Lower leakage current (such as STPS30150CW at 6.5 µA) provides improved performance in low-current or high-impedance circuits. Higher leakage (such as DSA70C150HB at 680 µA) remains acceptable for standard rectification applications.

Q: Can I substitute the SR16150PTH with a part rated for lower current?

A: No. Substitute parts must have current ratings equal to or greater than 16 A. Parts with lower current ratings (such as STPS30150CW at 15 A) do not meet the minimum specification and are not suitable replacements.

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