SR20150-G Equivalent & Substitute Parts

Part Overview

The SR20150-G is a Schottky diode array manufactured by Comchip Technology, configured as a 1 Pair Common Cathode arrangement with a maximum reverse voltage rating of 150 V and average rectified current of 10 A per diode. The device is packaged in TO-220-3 through-hole configuration and operates across a junction temperature range of -55°C to 150°C.

This part is classified as Obsolete. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Substiute Parts

SR20150-G

Comchip TechnologyIn Stock: 1012SR20150-G Datasheet

Current PartRFQ

STPS20150CT

STMicroelectronicsIn Stock: 102787STPS20150CT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SR20150-G is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Diode Configuration: 1 Pair Common Cathode (pin-compatible topology)
• Technology: Schottky (fast recovery characteristics)
• Voltage - DC Reverse (Vr) (Max): 150 V (minimum threshold)
• Current - Average Rectified (Io) (per Diode): 10 A (minimum threshold)
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole
• Package / Case: TO-220-3 (physical and electrical pin compatibility)

Environmental & Compliance Requirements:

• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part STPS20150CT meets all electrical and mechanical compatibility criteria. It maintains identical diode configuration, technology type, reverse voltage rating, and current rating. The package and mounting type are identical, ensuring direct mechanical and electrical substitution in TO-220-3 through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

The STPS20150CT is a direct electrical and mechanical substitute for the SR20150-G. Both devices share identical diode configuration, technology classification, reverse voltage rating, and current rating. Pin compatibility is maintained through identical TO-220-3 packaging.

The STPS20150CT offers the following advantages:

Product Status: The substitute part is classified as Active, ensuring long-term availability and continued manufacturing support, whereas the SR20150-G is Obsolete.

Compliance: The STPS20150CT is ROHS3 Compliant, meeting current regulatory requirements for restricted substances.

Performance Characteristics: The STPS20150CT demonstrates lower forward voltage drop (920 mV versus 950 mV at 10 A) and significantly lower reverse leakage current (5 µA versus 500 µA at 150 V), indicating improved efficiency and reduced standby power consumption.

Operating Temperature Range: The STPS20150CT supports a maximum junction temperature of 175°C, compared to 150°C for the SR20150-G, providing enhanced thermal margin in high-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can STPS20150CT be used as a direct replacement for SR20150-G in existing designs?

A: Yes. The STPS20150CT is electrically and mechanically compatible with the SR20150-G. Both devices feature identical diode configuration (1 Pair Common Cathode), technology type (Schottky), reverse voltage rating (150 V), current rating (10 A per diode), and TO-220-3 package. No circuit modifications are required.

Q: What are the key differences between SR20150-G and STPS20150CT?

A: The primary differences are: (1) Product Status—STPS20150CT is Active while SR20150-G is Obsolete; (2) Forward Voltage—STPS20150CT has 920 mV versus 950 mV at 10 A; (3) Reverse Leakage—STPS20150CT has 5 µA versus 500 µA at 150 V; (4) Maximum Junction Temperature—STPS20150CT supports 175°C versus 150°C; (5) Compliance—STPS20150CT is ROHS3 Compliant.

Q: Are there any pin compatibility concerns when substituting STPS20150CT for SR20150-G?

A: No. Both devices use identical TO-220-3 through-hole packaging with the same pin configuration and electrical function. Direct board-level substitution is possible without PCB modifications.

Q: Does the lower reverse leakage current of STPS20150CT affect circuit operation?

A: No. Lower reverse leakage current (5 µA versus 500 µA) represents improved device performance. This reduction decreases standby power consumption and heat generation, providing operational benefits without adverse effects on circuit function.

Q: Is the STPS20150CT suitable for high-temperature applications?

A: Yes. The STPS20150CT supports a maximum junction temperature of 175°C, providing 25°C additional thermal margin compared to the SR20150-G (150°C maximum). This extended range accommodates higher ambient temperature environments.

Q: What is the moisture sensitivity classification for STPS20150CT?

A: The STPS20150CT has Moisture Sensitivity Level (MSL) 1 (Unlimited), identical to the SR20150-G. This classification indicates no moisture-related handling restrictions during storage, transport, or assembly.