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

Diodes Incorporated 2DD1766Q-13

Name: 2DD1766Q-13
Brand: Diodes Incorporated
SKU: 2DD1766Q-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2DD1766Q-13

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: 2DD1766Q-13.pdf

Description:: TRANS NPN 32V 2A SOT-89-3

Quantity:: RFQ Add To RFQ list

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Inventory:3,473

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Product details

Overview

2DD1766Q-13 from Diodes Incorporated is an AEC-Q101 qualified NPN surface-mount transistor in SOT89-3L package, rated for V_CEO = 32 V, I_C = 2 A continuous, P_D = 1 W at T_A = 25°C, and h_FE = 120–270 (at V_CE = 3 V, I_C = 0.5 A), used in automotive-grade medium-power switching and amplification circuits.

For engineers reviewing the 2DD1766Q-13 datasheet, 2DD1766Q-13 pinout, 2DD1766Q-13 application, or 2DD1766Q-13 equivalent, key selection criteria include its AEC-Q101 qualification, SOT89-3L thermal performance (R_θJA = 125°C/W), V_CE(SAT) ≤ 0.8 V at I_C = 2 A / I_B = 0.2 A, f_T = 220 MHz, and direct replacement guidance to FCX491TA.

Technical Context

This NPN bipolar junction transistor employs epitaxial planar die construction for stable gain and low leakage. It operates across –55°C to +150°C with guaranteed breakdown voltages: V_(BR)CBO = 40 V, V_(BR)CEO = 32 V, and V_(BR)EBO = 5 V under specified test conditions.

Its small-signal behavior includes f_T = 220 MHz at V_CE = 5 V / I_E = –50 mA and C_ob = 13 pF at V_CB = 10 V, supporting medium-frequency switching and linear amplification where gain consistency and saturation voltage are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	32 V - Maximum safe collector-emitter voltage before avalanche breakdown under DC conditions
I_C (continuous)	2 A - Continuous collector current rating defining usable power-handling capacity in steady-state switching
P_D @ 25°C	1 W - Power dissipation limit on FR-4 PCB with recommended pad layout; derates linearly above 25°C
h_FE	120–270 - DC current gain range at V_CE = 3 V / I_C = 0.5 A, enabling predictable base drive sizing
V_CE(SAT)	0.3–0.8 V - Saturation voltage at I_C = 2 A / I_B = 0.2 A, directly determining conduction loss in switch mode
f_T	220 MHz - Transition frequency indicating usable bandwidth for small-signal amplification or high-speed switching

Pinout & Package

Package: SOT89-3L - Surface-mount plastic package with exposed thermal tab (pin 3), optimized for power dissipation on PCB copper area; UL 94V-0 rated, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Emitter terminal	Current exit path; connected to ground or low-side reference in common-emitter configurations
2 (Base)	Control input	Low-impedance input requiring ~0.2 A drive for full saturation at 2 A collector current
3 (Collector)	Power output	Main current-carrying terminal; thermally tied to exposed tab for enhanced heat transfer to PCB

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive applications with PPAP capability and IATF 16949 manufacturing
Epitaxial planar die	Ensures tight parameter distribution and long-term reliability under thermal cycling
SOT89-3L thermal design	Exposed collector tab enables 1 W dissipation with proper PCB copper area per Diodes' layout guidelines
Lead-free & "Green" compliance	Meets RoHS 3 (2015/863/EU), halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb)

Applications

Automotive Body Control Module

Industrial Motor Driver Stage

Use Scenario: Driving 12 V solenoids and relays in door lock, window lift, and lighting control units.

IC Role / Device Role / Timing Role: Medium-power NPN switch interfacing microcontroller GPIO to inductive loads.

Use Value: V_CEO = 32 V withstands load-dump transients; V_CE(SAT) ≤ 0.8 V limits self-heating during 2 A peak pulses.

Use Scenario: Low-side current switching in 24 V brushed DC motor H-bridge half-bridges.

IC Role / Device Role / Timing Role: Discrete power switch controlling motor phase current with PWM up to 20 kHz.

Use Value: f_T = 220 MHz ensures fast turn-on/turn-off; h_FE ≥ 120 allows simple resistor-based base drive.

LED Driver for Commercial Lighting

DC-DC Converter Primary Switch

Use Scenario: Constant-current switching for high-brightness LED strings in streetlight and signage systems.

IC Role / Device Role / Timing Role: Linear or PWM-controlled current regulator in buck-derived topologies.

Use Value: R_θJA = 125°C/W enables stable operation at ambient up to 85°C with minimal heatsinking.

Use Scenario: Low-frequency (≤100 kHz) primary-side switch in isolated flyback converters for industrial power supplies.

IC Role / Device Role / Timing Role: High-current, low-V_CE(SAT) switch replacing MOSFETs where gate drive complexity must be minimized.

Use Value: I_CM = 2.5 A peak supports surge currents during startup without secondary overcurrent protection.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN medium-power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
FCX491TA	Same SOT89-3L package; h_FE = 100–300, V_CE(SAT) = 0.25–0.6 V at I_C = 2 A, f_T = 250 MHz	Higher f_T and tighter h_FE spread support faster switching and more consistent gain in production	Direct replacement per Diodes' obsolescence notice; preferred for new designs requiring improved parametric consistency
2DB1188	Complementary PNP device (V_CEO = –32 V, I_C = –2 A); not functionally interchangeable as NPN	Used only in push-pull or complementary pair configurations-not a drop-in substitute	Select only when designing symmetrical output stages; requires redesign of biasing and drive network

Compared with 2DD1766Q-13, FCX491TA offers higher f_T and lower V_CE(SAT), improving efficiency in PWM-driven loads, while 2DB1188 serves only as a matched PNP partner-not a functional alternative-requiring circuit-level redesign.

Availability

2DD1766Q-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, commercial LED drivers, and isolated DC-DC converter designs requiring stable component supply and legacy design continuity.

Supply support for 2DD1766Q-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, specializing in high-reliability components for automotive, industrial, and consumer markets.

The 2DD1766Q-13 belongs to Diodes' general-purpose bipolar transistor product line, engineered for AEC-Q101-compliant medium-power switching and amplification where robustness, thermal stability, and lead-free compliance are mandatory.

FAQ

Is 2DD1766Q-13 still in active production?

No - Diodes Incorporated has officially discontinued the 2DD1766Q-13. The datasheet states "OBSOLETE – PART DISCONTINUED" and recommends FCX491TA as the designated replacement. Aetrix Electronics maintains limited legacy stock for design continuity but does not support long-term production ramps.

What is the thermal resistance of 2DD1766Q-13 in standard mounting?

R_θJA is 125°C/W when mounted on an FR-4 PCB using Diodes' recommended SOT89-3L pad layout (documented in their packaging guide). This value assumes no additional heatsink and accounts for conduction through the exposed collector tab into PCB copper.

Can 2DD1766Q-13 replace a MOSFET in low-side switching?

Yes, but with trade-offs: it supports 2 A continuous current and low V_CE(SAT), yet requires significant base drive (0.2 A) versus MOSFET gate charge. Use only where gate driver complexity must be avoided and switching frequency stays below 50 kHz to manage BJT storage time losses.

Does 2DD1766Q-13 meet automotive qualification requirements?

Yes - it is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. Its construction, testing, and traceability comply with automotive change control requirements, making it suitable for body control, lighting, and non-safety-critical power modules.

2DD1766Q-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

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

Voltage - Collector Emitter Breakdown (Max):: 32 V

Vce Saturation (Max) @ Ib, Ic:: 800mV @ 200mA, 2A

Current - Collector Cutoff (Max):: 1µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 500mA, 3V

Power - Max:: 1 W

Frequency - Transition:: 220MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89-3

2DD1766Q-13 FAQ

1.How can I place an order for 2DD1766Q-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2DD1766Q-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 2DD1766Q-13 reliable?

The price and inventory of 2DD1766Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2DD1766Q-13 is usually 5 days.

3.What payment methods are accepted for 2DD1766Q-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2DD1766Q-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2DD1766Q-13?

2DD1766Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2DD1766Q-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 2DD1766Q-13?

For technical support, including 2DD1766Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2DD1766Q-13 requirements.

6.How does Aetrix verify that 2DD1766Q-13 is sourced from the original manufacturer or authorized distributors?

All 2DD1766Q-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 2DD1766Q-13 meets industry standards.

7.What is the process for return or replacement of 2DD1766Q-13?

All 2DD1766Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with 2DD1766Q-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 2DD1766Q-13 part is unused and in its original packaging.

Return procedure for 2DD1766Q-13:

1.Submit a request within 90 days.

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

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