MPSL01_D27Z NPN Bipolar Junction Transistor Equivalent & Substitute Parts

Part Overview

The MPSL01_D27Z is an NPN bipolar junction transistor manufactured by onsemi, rated for 120 V collector-emitter breakdown voltage and 200 mA maximum collector current. This device is packaged in a TO-92-3 through-hole configuration and is classified as obsolete. Due to its obsolete product status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. The substitute parts listed maintain functional compatibility within specified electrical and mechanical parameters while offering active product status and improved availability.

Key Parameters

Parameter	MPSL01_D27Z	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	120	V
Current - Collector (Ic) (Max)	200	mA
Power - Max	625	mW
Frequency - Transition	60	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-92-3	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MPSL01_D27Z is determined by the following critical parameters:

Voltage Rating Compatibility: The collector-emitter breakdown voltage must equal or exceed 120 V to maintain voltage margin in the original circuit application.

Current Rating Compatibility: The maximum collector current must equal or exceed 200 mA to support the original circuit's current requirements.

Package Compatibility: All substitute parts utilize E-Line (TO-92 compatible) through-hole packaging, which is mechanically and electrically compatible with TO-92-3 formed leads.

Transistor Type: All substitutes are NPN configuration, maintaining polarity and biasing compatibility.

Product Status: All substitute parts are classified as active, ensuring long-term availability and supply chain continuity.

Compliance: All substitute parts are RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

The substitute parts are grouped into two categories based on voltage rating alignment:

Category 1 - 120 V Rated (Exact Voltage Match): ZTX694BSTZ and ZTX694B maintain the exact 120 V collector-emitter breakdown voltage specification.

Category 2 - 100 V Rated (Reduced Voltage): ZTX415STZ, ZTX453STZ, ZTX653STZ, and ZTX853STZ operate at 100 V collector-emitter breakdown voltage, suitable for applications with 100 V or lower voltage requirements.

Parameter Comparison

Parameter	MPSL01_D27Z	ZTX415STZ	ZTX453STZ	ZTX653STZ	ZTX694BSTZ	ZTX853STZ	Unit
Transistor Type	NPN	NPN - Avalanche Mode	NPN	NPN	NPN	NPN	—
Voltage - Collector Emitter Breakdown (Max)	120	100	100	100	120	100	V
Current - Collector (Ic) (Max)	200	500	1000	2000	500	4000	mA
Power - Max	625	680	1000	1000	1000	1200	mW
Frequency - Transition	60	40	150	175	130	130	MHz
Operating Temperature Range	-55 to 150	-55 to 175	-55 to 200	-55 to 200	-55 to 200	-55 to 200	°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	—
Package / Case	TO-92-3	E-Line-3	E-Line-3	E-Line-3	E-Line-3	E-Line-3	—
Product Status	Obsolete	Active	Active	Active	Active	Active	—
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

For Direct Voltage and Current Replacement (120 V, 200 mA minimum):

ZTX694BSTZ is the primary substitute, offering exact 120 V collector-emitter breakdown voltage matching with 500 mA maximum collector current capability. This part is active, RoHS3 compliant, and available in cut tape packaging with 25,200 units in stock. The extended operating temperature range (-55°C to 200°C) exceeds the original specification.

For Applications Tolerant of 100 V Voltage Rating:

ZTX453STZ provides 100 V collector-emitter breakdown voltage with 1 A maximum collector current and 150 MHz transition frequency. This part is active, RoHS3 compliant, and available with 25,100 units in stock. The higher current and frequency ratings provide design margin for applications not requiring the full 120 V rating.

ZTX653STZ offers 100 V collector-emitter breakdown voltage with 2 A maximum collector current and 175 MHz transition frequency. This part is active, RoHS3 compliant, and available with 10,400 units in stock.

ZTX415STZ provides 100 V collector-emitter breakdown voltage with 500 mA maximum collector current in avalanche mode configuration. This part is active, RoHS3 compliant, and available with 888 units in stock.

ZTX853STZ offers 100 V collector-emitter breakdown voltage with 4 A maximum collector current and 130 MHz transition frequency. This part is active, RoHS3 compliant, and available with 749 units in stock.

Compliance Considerations:

All substitute parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution. The original MPSL01_D27Z RoHS status is not specified; substitution with RoHS3 compliant alternatives ensures compliance with modern environmental and safety standards.

Frequently Asked Questions (FAQ)

Q: Can ZTX694BSTZ directly replace MPSL01_D27Z in all applications?

A: ZTX694BSTZ maintains the same 120 V collector-emitter breakdown voltage and exceeds the 200 mA current requirement with 500 mA capability. The E-Line (TO-92 compatible) package is mechanically compatible with TO-92-3 formed leads. Substitution is valid for applications within these electrical parameters.

Q: What is the difference between 120 V and 100 V rated substitutes?

A: The MPSL01_D27Z is rated for 120 V collector-emitter breakdown voltage. Substitutes rated at 100 V have a lower voltage margin. Selection of 100 V rated parts is appropriate only for applications where the circuit voltage does not exceed 100 V. For circuits operating at or near 120 V, ZTX694BSTZ is the appropriate choice.

Q: Are E-Line packages compatible with TO-92-3 through-hole PCB layouts?

A: E-Line (TO-92 compatible) packages are mechanically and electrically compatible with TO-92-3 formed leads. Both utilize three-lead through-hole configurations with identical pin spacing and lead geometry. PCB layouts designed for TO-92-3 accept E-Line packages without modification.

Q: Why do substitute parts have higher current ratings than the original?

A: Substitute parts from Diodes Incorporated are designed with higher current and power ratings to provide design margin and support a broader range of applications. Higher ratings do not prevent use in lower-current applications; the circuit will operate within the lower current envelope of the original design.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed are RoHS3 compliant. The original MPSL01_D27Z RoHS status is not specified. Substitution with RoHS3 compliant alternatives ensures compliance with current environmental regulations and supply chain requirements.

Q: What is the significance of avalanche mode in ZTX415STZ?

A: ZTX415STZ is specified as NPN - Avalanche Mode, indicating capability for avalanche breakdown operation. This specification does not prevent use in standard linear or switching applications. The avalanche mode capability provides additional design flexibility for applications requiring avalanche suppression or transient protection.

Q: How does operating temperature range affect substitution?

A: The original MPSL01_D27Z operates from -55°C to 150°C. All substitute parts extend this range to -55°C to 200°C, providing wider temperature margin. For applications within the original -55°C to 150°C range, all substitutes are compatible. For applications requiring operation above 150°C, substitute parts provide extended capability.

Q: What packaging options are available for substitute parts?

A: ZTX694BSTZ is available in cut tape (CT) packaging with 25,200 units in stock. ZTX453STZ is available in cut tape with 25,100 units. ZTX653STZ is available in cut tape with 10,400 units. ZTX415STZ is available in tape and box (TB) with 888 units. ZTX853STZ is available in cut tape with 749 units. ZTX694B is available in bulk packaging with 4,548 units. Selection depends on procurement volume and supply chain requirements.

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