Equivalent & Substitute Parts for 2DA1971-13

Part Overview

The 2DA1971-13 is an active PNP bipolar junction transistor manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-89-3 package. This component operates at 400 V collector-emitter breakdown voltage with a maximum collector current of 500 mA and delivers 1.5 W maximum power dissipation. The transistor is specified for general-purpose switching and amplification circuits requiring moderate voltage and current ratings with a transition frequency of 75 MHz.

Substitute parts are identified when electrical characteristics, mechanical packaging, and compliance certifications remain equivalent across manufacturing variants or packaging options from the same manufacturer. Identifying equivalent parts ensures design flexibility, supply chain continuity, and component availability without circuit redesign.

Substiute Parts

2DA1971-13

Diodes IncorporatedIn Stock: 8592DA1971-13 Datasheet

Current PartRFQ

2DA1971-7

Diodes IncorporatedIn Stock: 45882DA1971-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2DA1971-13 with equivalent parts is determined by strict equivalence across the following critical parameters:

Electrical Characteristics:

• Transistor polarity (PNP)
• Collector-emitter breakdown voltage (400 V maximum)
• Maximum collector current (500 mA)
• Maximum power dissipation (1.5 W)
• Transition frequency (75 MHz)
• DC current gain minimum specification (140 @ 100mA, 5V)
• Saturation voltage characteristics (400mV @ 40mA, 200mA)
• Collector cutoff current (100 nA maximum)
• Operating temperature range (-55°C to 150°C)

Mechanical and Packaging Requirements:

• Surface mount mounting type
• SOT-89-3 package designation
• TO-243AA case style

Compliance and Regulatory:

• ROHS3 compliance
• Moisture sensitivity level 1 (unlimited shelf life)
• Active product status from manufacturer

The substitute part 2DA1971-7 meets all specified electrical, mechanical, and compliance criteria and is therefore electrically and functionally interchangeable with the 2DA1971-13 in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 2DA1971-13 and 2DA1971-7 are active products from Diodes Incorporated with identical electrical specifications and mechanical packaging. Selection between these parts is based on supply chain availability and inventory status rather than technical performance differences.

The 2DA1971-13 carries 763 pieces in current inventory stock. The 2DA1971-7 carries 4512 pieces in current inventory stock, providing greater availability for high-volume production requirements.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring equivalent handling and storage requirements. Both are rated for the full operating temperature range of -55°C to 150°C and deliver identical electrical performance in switching and amplification applications.

Selection of either part is appropriate for new designs and existing circuit implementations without modification to PCB layout, schematic design, or thermal management calculations.

Frequently Asked Questions (FAQ)

Q: Can 2DA1971-7 be used as a direct replacement for 2DA1971-13 in existing designs?

A: Yes. The 2DA1971-7 is electrically and mechanically equivalent to the 2DA1971-13. All electrical parameters, package dimensions, pin configuration, and compliance certifications are identical. No circuit modifications or PCB redesign is required.

Q: What is the difference between 2DA1971-13 and 2DA1971-7?

A: Both parts are manufactured by Diodes Incorporated with identical specifications. The suffix designation (-13 and -7) indicates different manufacturing date codes or tape reel configurations. Electrical performance and mechanical compatibility are equivalent.

Q: Are both parts available in the same package?

A: Yes. Both the 2DA1971-13 and 2DA1971-7 are supplied in the SOT-89-3 surface mount package (TO-243AA case style) on tape and reel (TR) packaging for automated assembly.

Q: Do both parts have the same compliance certifications?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both carry moisture sensitivity level 1 (unlimited shelf life).

Q: What is the maximum collector current for these transistors?

A: The maximum collector current (Ic) is 500 mA for both parts. Circuit designs must limit collector current to this maximum value under all operating conditions.

Q: What is the maximum operating temperature?

A: Both parts are rated for junction temperatures (TJ) up to 150°C. The minimum operating temperature is -55°C, providing a total operating range of 195°C.

Q: Can these PNP transistors be used in high-frequency switching applications?

A: Yes. Both parts specify a transition frequency (fT) of 75 MHz, suitable for switching and amplification circuits operating at frequencies up to this limit.

Q: What is the saturation voltage specification?

A: The maximum saturation voltage (Vce sat) is 400 mV when measured at base current (Ib) of 40 mA and collector current (Ic) of 200 mA for both parts.