2N2915 Equivalent & Substitute Parts

Part Overview

The 2N2915 is a dual NPN bipolar junction transistor (BJT) array manufactured by Central Semiconductor Corp, housed in a TO-78-6 metal can package. This component is classified as obsolete, with 650 pieces currently in stock. The 2N2915 operates at maximum collector current of 30mA, collector-emitter breakdown voltage of 45V, and maximum power dissipation of 600mW, with a transition frequency of 60MHz. Due to its obsolete status, equivalent substitute parts from active product lines are necessary for new designs and long-term supply chain continuity.

Key Parameters

Parameter	Value	Unit
Transistor Type	2 NPN (Dual)	—
Current - Collector (Ic) (Max)	30	mA
Voltage - Collector Emitter Breakdown (Max)	45	V
Power - Max	600	mW
Frequency - Transition	60	MHz
Mounting Type	Through Hole	—
Package / Case	TO-78-6 Metal Can	—
Product Status	Obsolete	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the 2N2915 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the TO-78-6 metal can package with through-hole mounting to ensure mechanical and electrical compatibility with existing PCB layouts.

Electrical Ratings: Substitute parts must meet or exceed the 2N2915 specifications for collector-emitter breakdown voltage (45V maximum) and support the required collector current range. The 2N2915 operates at maximum 30mA; substitute parts rated at 25mA maximum collector current remain functionally compatible for applications within this lower threshold.

Transistor Configuration: All substitutes must be dual NPN (2 NPN) transistor arrays to maintain pin compatibility and functional equivalence.

Voltage and Current Margins: The 45V collector-emitter breakdown voltage is a critical constraint. All qualified substitutes maintain this 45V rating, ensuring no degradation in voltage handling capability.

The MAT01 series (MAT01AH, MAT01AHZ, MAT01GH, MAT01GHZ) from Analog Devices Inc. satisfies all substitution criteria. These parts are matched-pair dual NPN transistor arrays in TO-78-6 packages with 45V breakdown voltage ratings and active product status.

Parameter Comparison

Parameter	2N2915	MAT01AH	MAT01AHZ	MAT01GH	MAT01GHZ
Manufacturer	Central Semiconductor Corp	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Transistor Type	2 NPN (Dual)	2 NPN (Dual) Matched Pair	2 NPN (Dual) Matched Pair	2 NPN (Dual) Matched Pair	2 NPN (Dual) Matched Pair
Current - Collector (Ic) (Max)	30 mA	25 mA	25 mA	25 mA	25 mA
Voltage - Collector Emitter Breakdown (Max)	45 V	45 V	45 V	45 V	45 V
Power - Max	600 mW	500 mW	500 mW	500 mW	500 mW
Frequency - Transition	60 MHz	450 MHz	450 MHz	450 MHz	450 MHz
Package / Case	TO-78-6 Metal Can	TO-78-6 Metal Can	TO-78-6 Metal Can	TO-78-6 Metal Can	TO-78-6 Metal Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Operating Temperature	Not specified	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)

Engineering Selection Recommendations

Active Product Status: The MAT01 series (MAT01AH, MAT01AHZ, MAT01GH, MAT01GHZ) are all active products from Analog Devices Inc., ensuring long-term availability and supply chain stability compared to the obsolete 2N2915.

Regulatory Compliance: All MAT01 variants are ROHS3 compliant, meeting modern environmental and regulatory requirements. The 2N2915 is RoHS non-compliant, making MAT01 substitutes necessary for applications subject to RoHS directives.

Electrical Compatibility: All MAT01 variants maintain the critical 45V collector-emitter breakdown voltage specification, ensuring voltage margin preservation. The maximum collector current of 25mA in MAT01 parts is lower than the 2N2915's 30mA rating; however, this remains compatible for applications operating within the 25mA threshold.

Packaging and Mechanical Fit: All substitute parts use identical TO-78-6 metal can through-hole packaging, ensuring direct PCB layout compatibility without redesign.

Performance Enhancement: MAT01 series transistors feature 450MHz transition frequency compared to the 2N2915's 60MHz, providing superior high-frequency performance characteristics. The matched-pair configuration of MAT01 devices offers improved parameter matching between the two transistors within the array.

Inventory Availability: MAT01AH (1202 pcs), MAT01AHZ (1450 pcs), MAT01GH (1290 pcs), and MAT01GHZ (1900 pcs) are all in stock, providing immediate procurement options.

Frequently Asked Questions (FAQ)

Q: Can MAT01 series parts directly replace 2N2915 in existing designs?

A: Yes. All MAT01 variants (MAT01AH, MAT01AHZ, MAT01GH, MAT01GHZ) are pin-compatible direct replacements in TO-78-6 packages. The critical electrical parameters—45V collector-emitter breakdown voltage, dual NPN configuration, and through-hole mounting—are identical. Applications operating at collector currents of 25mA or below experience no functional degradation.

Q: What is the difference between MAT01AH, MAT01AHZ, MAT01GH, and MAT01GHZ?

A: All four variants are dual NPN matched-pair transistor arrays with identical electrical specifications (45V, 25mA, 450MHz, 500mW, TO-78-6). The primary differences are packaging format (MAT01GHZ is specified as Bulk packaging) and minor variations in collector cutoff current (MAT01AH and MAT01AHZ: 300nA; MAT01GH and MAT01GHZ: 400nA). Selection depends on packaging requirements and procurement specifications.

Q: Is the 25mA maximum collector current of MAT01 parts sufficient for 2N2915 replacement?

A: The 2N2915 is rated at 30mA maximum collector current, while MAT01 parts are rated at 25mA. For applications operating at or below 25mA, MAT01 substitutes are fully compatible. Applications requiring collector currents between 25mA and 30mA must be evaluated against actual circuit operating points to confirm compatibility.

Q: Why do MAT01 parts have higher transition frequency (450MHz vs. 60MHz)?

A: The MAT01 series represents a more modern design with enhanced high-frequency performance. The 450MHz transition frequency is a performance improvement over the 2N2915's 60MHz. This does not create compatibility issues; circuits designed for 60MHz operation function correctly with 450MHz-capable devices.

Q: Are MAT01 parts RoHS compliant?

A: Yes. All MAT01 variants (MAT01AH, MAT01AHZ, MAT01GH, MAT01GHZ) are ROHS3 compliant. The 2N2915 is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, MAT01 substitutes are required.

Q: What is the difference between matched-pair and standard dual transistor arrays?

A: MAT01 parts are specified as matched-pair dual NPN transistor arrays, meaning the two transistors within the package have closely controlled parameter matching. The 2N2915 specification does not indicate matched-pair characteristics. Matched-pair configuration provides improved performance in applications requiring precise transistor parameter correlation, such as differential amplifiers or precision current mirrors.

Q: Can I use MAT01GHZ in place of MAT01AH?

A: Yes. MAT01GHZ and MAT01AH are electrically equivalent with identical 45V, 25mA, 450MHz, and 500mW specifications. The primary difference is packaging format (MAT01GHZ is Bulk). Selection depends on procurement and packaging requirements for your application.

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