STPS30170CT Equivalent & Substitute Parts

Part Overview

The STPS30170CT is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common cathode with a maximum reverse voltage rating of 170 V and average rectified current of 15 A per diode. The device is packaged in TO-220-3 through-hole configuration and features fast recovery characteristics suitable for high-frequency rectification applications.

The STPS30170CT is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, field repairs, and system maintenance where this component is specified in existing designs.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	170 V
Current - Average Rectified (Io) (per Diode)	15 A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	20 µA @ 170 V
Operating Temperature - Junction (Max)	175°C
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the STPS30170CT are identified based on electrical and mechanical parameter equivalence within the STMicroelectronics STPS30170 base product family. The substitution criteria are strictly defined by the following parameters:

Electrical Equivalence Requirements:

Diode configuration: 1 pair common cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 170 V
Current - Average Rectified (Io) (per Diode): 15 A
Voltage - Forward (Vf) (Max) @ If: 920 mV @ 15 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr: 20 µA @ 170 V
Operating Temperature - Junction (Max): 175°C

Mechanical Compatibility Considerations:

Mounting type: Through hole
Package variations within the same base product number are permitted when electrical parameters remain identical

Substitute parts must maintain all electrical specifications without deviation. Package differences (TO-220-3 versus TO-247-3) represent mechanical variations that do not affect electrical performance but may require PCB layout modifications.

Parameter Comparison

Parameter	STPS30170CT (Main Part)	STPS30170CW (Substitute)
Manufacturer	STMicroelectronics	STMicroelectronics
Base Product Number	STPS30170	STPS30170
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	170 V	170 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 15 A	920 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	20 µA @ 170 V	20 µA @ 170 V
Operating Temperature - Junction (Max)	175°C	175°C
Mounting Type	Through Hole	Through Hole
Package / Case	TO-220-3	TO-247-3
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The STPS30170CW is electrically equivalent to the STPS30170CT across all specified electrical parameters. Both devices are manufactured by STMicroelectronics, share the same base product number (STPS30170), and maintain identical electrical characteristics including reverse voltage, forward voltage, current ratings, and thermal specifications.

The primary distinction between these parts is packaging format and product status. The STPS30170CT uses TO-220-3 package configuration and is classified as obsolete. The STPS30170CW uses TO-247-3 package configuration and maintains active product status with current manufacturing availability.

Both parts are ROHS3 compliant and carry identical regulatory certifications (REACH Unaffected, EAR99 ECCN classification). The MSL rating of 1 (Unlimited) applies to both devices, indicating no moisture sensitivity constraints during storage or handling.

Selection of the STPS30170CW as a substitute for the STPS30170CT is supported by electrical equivalence and active product availability. PCB layout modifications are required to accommodate the different package footprint (TO-247-3 versus TO-220-3).

Frequently Asked Questions (FAQ)

Q: Are the STPS30170CT and STPS30170CW electrically interchangeable?

A: Yes. Both devices share identical electrical specifications including reverse voltage (170 V), forward voltage (920 mV @ 15 A), current rating (15 A per diode), and thermal characteristics (175°C junction temperature maximum). The diode configuration (1 pair common cathode) and Schottky technology are identical.

Q: What is the primary difference between these two parts?

A: The STPS30170CT is packaged in TO-220-3 configuration, while the STPS30170CW is packaged in TO-247-3 configuration. Both are through-hole mounting types. The STPS30170CT is obsolete; the STPS30170CW is active production.

Q: Can I use the STPS30170CW as a direct replacement without PCB modifications?

A: Electrical substitution is direct. However, the different package footprint (TO-247-3 versus TO-220-3) requires PCB layout modifications. Pin spacing and mounting hole locations differ between these packages.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical EAR99 ECCN classification. Moisture sensitivity level (MSL 1 - Unlimited) is identical for both devices.

Q: What is the inventory status of these parts?

A: The STPS30170CT has 3400 pieces in stock but is classified as obsolete. The STPS30170CW has 1940 pieces in stock and is active production status.

Q: Are there any thermal or performance differences I should consider?

A: No. Maximum junction temperature (175°C), reverse leakage current (20 µA @ 170 V), and recovery speed characteristics (≤ 500 ns) are identical between both parts.

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