Equivalent & Substitute Parts for 2SA2071T100Q

Part Overview

The 2SA2071T100Q, manufactured by Rohm Semiconductor, is a PNP bipolar junction transistor (BJT) designed for surface mount applications. This device features a maximum collector-emitter voltage of 60 V, a peak collector current of 3 A, a transition frequency of 180 MHz, and a maximum power dissipation of 2 W. It is supplied in the TO-243AA (MPT3) package and characterized by a DC current gain of 120 (minimum at specified test conditions). The 2SA2071T100Q is marked as "Not For New Designs," necessitating the identification of alternative transistor models for replacement and ongoing production.

Key Parameters

Parameter	2SA2071T100Q
Transistor Type	PNP
Collector-Emitter Voltage (Max)	60 V
Collector Current (Max)	3 A
DC Current Gain (hFE, Min)	120 @ 100mA, 2V
Power Dissipation (Max)	2 W
Transition Frequency	180 MHz
Package / Case	TO-243AA
Mounting Type	Surface Mount
Operating Temperature	150°C (TJ)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution options are determined using explicit electrical and mechanical parameters including transistor type, collector-emitter voltage rating, collector current rating, minimum DC current gain, maximum power dissipation, transition frequency, surface mount compatibility, package type, RoHS compliance, and rated operating temperature. All listed substitute parts are strictly matched based on these key criteria and conform to the specified requirements for the BJT transistor category.

Parameter Comparison

Parameter	2SA2071T100Q (Rohm Semiconductor)	FZT751TC (Diodes Incorporated)	2SA2125-TD-E (onsemi)	PBSS304PX,115 (Nexperia USA Inc.)	PBSS5360XX (Nexperia USA Inc.)	PXT2907A,115 (Nexperia USA Inc.)
Transistor Type	PNP	PNP	PNP	PNP	PNP	PNP
Collector-Emitter Voltage (Max)	60 V	60 V	50 V	60 V	60 V	60 V
Collector Current (Max)	3 A	3 A	3 A	4.2 A	3 A	600 mA
DC Current Gain (hFE, Min)	120 @ 100mA, 2V	100 @ 500mA, 2V	200 @ 100mA, 2V	150 @ 2A, 2V	80 @ 3A, 5V	100 @ 150mA, 2V
Power Dissipation (Max)	2 W	2 W	3.5 W	2.1 W	1.35 W	1.1 W
Transition Frequency	180 MHz	140 MHz	390 MHz	130 MHz	65 MHz	200 MHz
Operating Temperature	150°C (TJ)	-55°C ~ 150°C (TJ)	150°C (TJ)	150°C (TJ)	-55°C ~ 150°C (TA)	150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Package / Case	TO-243AA	TO-261-4, TO-261AA	TO-243AA	TO-243AA	TO-243AA	TO-243AA

Engineering Selection Recommendations

The 2SA2071T100Q is identified as "Not For New Designs." Substitution should be selected using only the parameters established above. All listed substitute transistors are RoHS3 compliant and have a Moisture Sensitivity Level of 1 (Unlimited), meeting standard environmental and reliability certifications for electronic component selection. Each substitute component is in active production status and appropriate for use within specified operating temperature ranges and mounting types.

Frequently Asked Questions (FAQ)

Q1: What determines acceptable substitutes for 2SA2071T100Q?
Acceptable substitutes must have the same transistor type (PNP), collector-emitter voltage rating, collector current rating, surface mount compatibility, comparable DC current gain, maximum power dissipation, transition frequency, RoHS compliance, and packaging style.

Q2: Do substitute parts need to match the package exactly?
While the primary consideration is electrical and mechanical compatibility, package equivalency such as TO-243AA or other compatible surface mount packages is required. Minor differences in package style may be acceptable when the mounting type and device dimensions are within required specifications.

Q3: Are all recommended alternatives RoHS compliant and rated for similar operating temperatures?
All listed substitutes are RoHS3 compliant and rated for 150°C junction temperature, conforming to typical industrial application conditions.

Q4: How should DC current gain and transition frequency be considered in selection?
Only the provided minimum DC current gain and transition frequency values are relevant. Substitute devices listed here have these values specified for direct comparison.

Q5: Is product status critical in substitute selection?
Product status is critical. Only devices listed as "Active" are suitable substitutes for designs requiring ongoing production support.

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