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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Diodes Incorporated 2DA1213YQ-13

Name: 2DA1213YQ-13
Brand: Diodes Incorporated
SKU: 2DA1213YQ-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2DA1213YQ-13

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: 2DA1213YQ-13.pdf

Description:: TRANS PNP 50V 2A SOT-89-3

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Product details

Overview

2DA1213YQ-13 from Diodes Incorporated is a 50V PNP bipolar junction transistor (BJT) designed for automotive power switching applications, featuring -50V V_CEO, -2A continuous collector current, and AEC-Q101 qualification. It operates in SOT89 package with -0.5V V_CE(sat) at -1A/-50mA drive and supports high-gain hold-up for stable switching in engine control modules and body electronics.

For engineers reviewing the 2DA1213YQ-13 datasheet, 2DA1213YQ-13 pinout, 2DA1213YQ-13 application, or 2DA1213YQ-13 equivalent, key selection criteria include its automotive-grade thermal robustness (R_θJL = 18.3°C/W), -6V V_EBO emitter-base rating, and 160MHz f_T for medium-speed switching in 12V/24V vehicle subsystems.

Technical Context

This PNP BJT functions as a high-current, medium-voltage power switch in automotive load control circuits. Its design emphasizes reliability under temperature extremes (-55°C to +150°C), low saturation voltage for minimal conduction loss, and high DC current gain (h_FE = 120–240 at -500mA) to reduce base drive requirements.

The device uses a thermally optimized SOT89 package with an exposed collector pad for enhanced heat dissipation. Its transient thermal impedance profile supports pulsed operation up to 2.5A I_CM, while the 1W steady-state power rating is derated linearly above 25°C ambient per the published curve.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-50V - Withstands 50V reverse collector-emitter voltage before breakdown, enabling use in 24V automotive systems with margin.
I_C (cont.)	-2A - Supports continuous load currents up to 2A, suitable for driving solenoids, relays, and LED arrays.
V_CE(sat)	-0.5V @ -1A/-50mA - Minimizes conduction loss and self-heating during active switching in high-duty-cycle applications.
h_FE	120–240 @ -500mA - Ensures reliable saturation with modest base current, reducing driver circuit complexity and power consumption.
f_T	160MHz - Enables stable operation up to ~10MHz switching frequencies in PWM-controlled loads without gain roll-off.
R_θJL	18.3°C/W - Low junction-to-lead thermal resistance allows efficient heat transfer to PCB copper, critical for compact automotive layouts.
T_J range	-55°C to +150°C - Fully rated for under-hood environments including engine compartments and transmission control units.

Pinout & Package

Package: SOT89 - Surface-mount plastic package with exposed collector pad for thermal management; dimensions: 4.50 × 2.50 × 1.05 mm (L × W × H); weight ≈ 0.052 g.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Emitter)	Emitter terminal	Current exit path; connected to system ground or low-side return in high-side switch configurations.
Pin 2 (Base)	Control input	Receives negative base current to turn on; requires current-limiting resistor to ensure -500mA max rating is not exceeded.
Pin 3 (Collector)	Power output	Connected to load and supply rail; electrically tied to exposed metal tab for thermal conduction to PCB copper pour.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive use with stress testing across temperature, humidity, and mechanical vibration per IATF 16949 manufacturing controls.
High gain hold-up	Maintains h_FE ≥20 even at I_C = -2A, ensuring consistent saturation and predictable switching behavior under full load.
Green, halogen-free	Contains <900ppm Br, <900ppm Cl (<1500ppm total Br+Cl), <1000ppm Sb - compliant with automotive environmental directives.
SOT89 thermal performance	R_θJL = 18.3°C/W enables 1W dissipation with ≤18°C rise above solder point, supporting compact board designs without heatsinks.

Applications

Engine Control Unit (ECU) Injector Driver

Body Control Module (BCM) Relay Interface

Use Scenario: Switching fuel injector coils in 12V gasoline engines with PWM duty cycles up to 80%.

IC Role / Device Role / Timing Role: High-side PNP switch controlling coil current path to ground; handles repetitive 10–20kHz pulses.

Use Value: -0.5V V_CE(sat) limits power loss to ≤500mW at 1A, reducing thermal stress on adjacent microcontroller and sensor ICs.

Use Scenario: Driving 12V automotive relays for door locks, lighting, and HVAC actuators.

IC Role / Device Role / Timing Role: Medium-speed load switch activated by MCU GPIO; operates in intermittent duty mode (≤10% duty).

Use Value: -50V V_CEO withstands load dump transients up to 40V, eliminating need for external TVS clamping in cost-sensitive BCM designs.

Transmission Control Unit (TCU) Solenoid Driver

Advanced Driver Assistance Systems (ADAS) Camera Power Sequencing

Use Scenario: Controlling hydraulic pressure solenoids in automatic transmissions requiring precise current regulation.

IC Role / Device Role / Timing Role: Constant-current switch operating in linear region during ramp-up; transitions to saturated state for hold phase.

Use Value: h_FE = 120–240 ensures stable base current control across -40°C to +125°C, maintaining solenoid response time within ±5% tolerance.

Use Scenario: Enabling/disabling 5V camera modules in rear-view and surround-view systems during vehicle startup/shutdown.

IC Role / Device Role / Timing Role: Soft-start power switch sequencing controlled by TCU or domain controller; operates in on/off mode only.

Use Value: R_θJL = 18.3°C/W allows direct mounting on small-area PCBs near camera connectors without thermal vias or copper flooding.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP power switching transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZTX951-AP	V_CEO = -60V, I_C = -1A, h_FE = 100–300, SOT223 package, R_θJA = 100°C/W	Higher voltage rating but lower current capability and poorer thermal performance than SOT89	Select when >50V transient immunity is required and board space permits larger SOT223 footprint.
MJD127G	V_CEO = -100V, I_C = -2A, h_FE = 30–120, TO-252 package, R_θJA = 60°C/W	Higher voltage and same current, but significantly larger package and lower gain at full load	Prefer for industrial 48V systems where footprint is less constrained and higher V_CEO margin is mandatory.

Compared with ZTX951-AP and MJD127G, the 2DA1213YQ-13 delivers superior thermal efficiency in automotive space-constrained layouts due to its SOT89 R_θJL of 18.3°C/W, while maintaining optimal gain-current balance for 12V/24V load switching without overdesigning voltage or package size.

Availability

2DA1213YQ-13 is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and transmission control applications requiring stable component supply, AEC-Q101 compliance, and long-term production continuity.

Supply support for 2DA1213YQ-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The 2DA1213YQ belongs to Diodes' automotive-qualified bipolar transistor product line, engineered specifically for high-reliability power switching in engine, chassis, and body control modules under harsh environmental conditions.

FAQ

Is the 2DA1213YQ-13 RoHS and REACH compliant?

Yes. The 2DA1213YQ-13 is fully RoHS 3 compliant (2015/863/EU), lead-free, halogen-free, and antimony-free per Diodes Incorporated's "Green" definition: <900ppm bromine, <900ppm chlorine (<1500ppm total Br+Cl), and <1000ppm antimony compounds. Compliance documentation is available upon request.

What is the maximum safe operating frequency for PWM switching with this transistor?

The 2DA1213YQ-13 has a transition frequency f_T of 160MHz, but practical PWM switching is limited by storage time (t_s = 130ns) and fall time (t_f = 12ns). For reliable saturation and recovery, maximum recommended switching frequency is 10MHz in hard-switched applications and 200kHz in high-duty-cycle PWM loads to avoid excessive switching losses.

Can this transistor be used in linear regulator applications?

No. While the 2DA1213YQ-13 can operate in the linear region, its 1W power dissipation limit and thermal resistance (R_θJA = 125°C/W) make it unsuitable for sustained linear regulation. It is explicitly designed and characterized for switching operation, with parameters like V_CE(sat) and t_s optimized for digital on/off control-not analog voltage control.

Does the SOT89 package require special PCB layout considerations for thermal performance?

Yes. To achieve the specified R_θJL = 18.3°C/W, the exposed collector pad must be soldered to a minimum 15mm × 15mm single-sided 1 oz copper pour with thermal vias to inner layers if available. The recommended pad layout (X1 = 0.760mm, Y1 = 3.030mm, Y4 = 4.530mm) is defined in Diodes' SOT89 outline drawing DS41104 Rev. 2-2.

2DA1213YQ-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 2 A

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 50mA, 1A

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 500mA, 2V

Power - Max:: 1 W

Frequency - Transition:: 160MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89-3

2DA1213YQ-13 FAQ

1.How can I place an order for 2DA1213YQ-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2DA1213YQ-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 2DA1213YQ-13 reliable?

The price and inventory of 2DA1213YQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2DA1213YQ-13 is usually 5 days.

3.What payment methods are accepted for 2DA1213YQ-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2DA1213YQ-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2DA1213YQ-13?

2DA1213YQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2DA1213YQ-13 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 2DA1213YQ-13?

For technical support, including 2DA1213YQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2DA1213YQ-13 requirements.

6.How does Aetrix verify that 2DA1213YQ-13 is sourced from the original manufacturer or authorized distributors?

All 2DA1213YQ-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 2DA1213YQ-13 meets industry standards.

7.What is the process for return or replacement of 2DA1213YQ-13?

All 2DA1213YQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 2DA1213YQ-13, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 2DA1213YQ-13 part is unused and in its original packaging.

Return procedure for 2DA1213YQ-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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