2STW1695 Equivalent & Substitute Parts

Part Overview

The 2STW1695 is a PNP bipolar junction transistor manufactured by STMicroelectronics, housed in a TO-247-3 through-hole package. This device is rated for 140 V collector-emitter breakdown voltage and 10 A maximum collector current, with a maximum power dissipation of 100 W. The 2STW1695 is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility while meeting current component availability standards.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Collector Current (Max)	10	A
Collector-Emitter Breakdown Voltage (Max)	140	V
Power Dissipation (Max)	100	W
Transition Frequency	20	MHz
Operating Temperature (Max)	150	°C
Package Type	TO-247-3	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the 2STW1695 are identified based on the following critical parameters:

Electrical Compatibility Criteria:

Transistor type must be PNP
Package must be TO-247-3 through-hole configuration
Collector-emitter breakdown voltage must equal or exceed 140 V
Maximum collector current must equal or exceed 10 A
Maximum power dissipation must equal or exceed 100 W
Operating temperature range must support 150°C maximum junction temperature

Compliance Requirements:

RoHS3 compliance required
REACH unaffected status required
EAR99 export classification

The MJW1302AG meets all electrical and mechanical compatibility criteria while offering enhanced performance specifications and active product status.

Parameter Comparison

Parameter	2STW1695 (STMicroelectronics)	MJW1302AG (onsemi)	Unit
Transistor Type	PNP	PNP	—
Collector Current (Max)	10	15	A
Collector-Emitter Breakdown Voltage (Max)	140	230	V
Vce Saturation (Max)	700 mV @ 700 mA, 7 A	2 V @ 1 A, 10 A	—
Power Dissipation (Max)	100	200	W
Transition Frequency	20	30	MHz
Operating Temperature (Max)	150	150	°C
Package Type	TO-247-3	TO-247-3	—
Mounting Type	Through Hole	Through Hole	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—
REACH Status	REACH Unaffected	REACH Unaffected	—
Product Status	Obsolete	Active	—

Engineering Selection Recommendations

The MJW1302AG is a direct substitute for the 2STW1695 in applications requiring PNP bipolar junction transistor functionality in the TO-247-3 package. The substitute part exceeds the minimum electrical requirements of the original device across all critical parameters: collector current (15 A vs. 10 A), collector-emitter breakdown voltage (230 V vs. 140 V), and power dissipation (200 W vs. 100 W).

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements. The MJW1302AG carries active product status, ensuring long-term availability and supply chain continuity compared to the obsolete 2STW1695.

The substitute part is suitable for direct replacement in existing designs without circuit modification, provided that the application does not depend on the specific saturation voltage characteristics of the original device. The enhanced performance specifications of the MJW1302AG provide additional design margin in high-current and high-voltage applications.

Frequently Asked Questions (FAQ)

Q: Can the MJW1302AG be used as a direct replacement for the 2STW1695 in existing circuit designs?

A: Yes. The MJW1302AG is electrically and mechanically compatible with the 2STW1695. Both devices are PNP transistors in TO-247-3 through-hole packages with identical pin configurations. The substitute part meets or exceeds all electrical specifications of the original device.

Q: What are the key differences between the 2STW1695 and MJW1302AG?

A: The MJW1302AG provides higher performance specifications: 15 A collector current versus 10 A, 230 V breakdown voltage versus 140 V, 200 W power dissipation versus 100 W, and 30 MHz transition frequency versus 20 MHz. The MJW1302AG is an active product, while the 2STW1695 is obsolete.

Q: Are there any package or mounting differences between these parts?

A: No. Both the 2STW1695 and MJW1302AG use identical TO-247-3 through-hole packages with the same pin configuration and mechanical dimensions. No PCB layout modifications are required for substitution.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the 2STW1695 and MJW1302AG are ROHS3 compliant and REACH unaffected. Both carry EAR99 export classification.

Q: Why is the 2STW1695 listed as obsolete?

A: The 2STW1695 has been discontinued by STMicroelectronics. The MJW1302AG from onsemi is an active alternative that provides equivalent or superior functionality for new designs and production continuity.

Q: What is the significance of the higher Vce saturation voltage in the MJW1302AG?

A: The MJW1302AG exhibits higher saturation voltage (2 V at specified conditions) compared to the 2STW1695 (700 mV at specified conditions). This difference reflects different device design characteristics. Applications sensitive to saturation voltage performance should evaluate circuit behavior with the substitute part's specifications.

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