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

Diodes Incorporated 2DD2652-7

Name: 2DD2652-7
Brand: Diodes Incorporated
SKU: 2DD2652-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2DD2652-7

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: 2DD2652-7.pdf

Description:: TRANS NPN 12V 1.5A SOT-323

Quantity:: RFQ Add To RFQ list

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Inventory:3,052

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Product details

Overview

2DD2652-7 from Diodes Incorporated is a low V_CE(SAT) NPN surface-mount transistor in SOT-323 package, rated for 12 V V_CEO, 1.5 A continuous I_C, 80–200 mV V_CE(SAT) at I_C = 500 mA/I_B = 25 mA, and h_FE = 270–680. It serves as a compact switching and low-power amplification device in space-constrained DC-DC converter control stages and LED driver current paths.

For engineers reviewing the 2DD2652-7 datasheet, 2DD2652-7 pinout, 2DD2652-7 application, or 2DD2652-7 equivalent, key selection criteria include verified V_CE(SAT) performance under pulsed conditions, thermal resistance (R_θJA = 250 °C/W with 1 in² copper pad), SOT-323 mechanical compatibility, and complementary PNP pairing with 2DB1689.

Technical Context

This NPN bipolar junction transistor uses epitaxial planar die construction to achieve low saturation voltage and stable gain across temperature. Its V_CE(SAT) remains ≤200 mV up to I_C = 500 mA with I_B = 25 mA, and h_FE maintains ≥270 at I_C = 200 mA/V_CE = 2 V - enabling reliable low-loss switching in portable power management circuits.

Thermal design is defined by two distinct R_θJA ratings: 417 °C/W on minimal FR-4 pad layout and 250 °C/W with 1 in² copper area, directly supporting PCB-level thermal optimization. The device operates from −55 °C to +150 °C and meets RoHS and Diodes Inc.'s "Green" material requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	12 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration.
I_C (continuous)	1.5 A - Continuous collector current rating defining steady-state switching capacity.
V_CE(SAT)	80–200 mV @ I_C = 500 mA, I_B = 25 mA - Confirmed low conduction loss enabling high-efficiency low-voltage switching.
h_FE	270–680 @ V_CE = 2 V, I_C = 200 mA - Validated DC current gain range for predictable base drive sizing.
f_T	260 MHz - Unity-gain bandwidth confirming suitability for audio-frequency amplification and fast-switching applications.
R_θJA	250 °C/W - Thermal resistance with 1 in² copper pad, enabling 500 mW power dissipation at T_A = 25 °C.
T_J range	−55 to +150 °C - Junction temperature operating envelope supporting industrial and automotive ambient environments.

Pinout & Package

Package: SOT-323 - ultra-small surface-mount plastic case (2.10 × 1.30 × 0.90 mm), UL 94V-0 rated, moisture sensitivity level 1, lead-free and RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
Emitter (E)	Current sink terminal	Connected to ground or low-side return path; requires low-impedance PCB trace for saturation integrity.
Base (B)	Control input	Accepts TTL/CMOS-compatible drive; 25 mA base current ensures full saturation at 500 mA collector load.
Collector (C)	Current source terminal	Switches load between supply rail and emitter; must route away from noise-sensitive traces due to f_T = 260 MHz.

Key Features

Feature	Design Value
Low V_CE(SAT)	80–200 mV enables <100 mW conduction loss at 500 mA, reducing thermal load in dense PCB layouts.
Epitaxial planar die	Ensures consistent h_FE distribution and tight V_CE(SAT) tolerance across production lots.
SOT-323 footprint	0.006 g mass and 2.1 × 1.3 mm outline support miniaturized battery-powered modules and wearables.
Complementary PNP pair	2DB1689 matches V_CEO, I_C, and thermal specs - simplifying push-pull stage design without derating.

Applications

LED Current Switching

DC-DC Converter Driver

Use Scenario: Driving single or parallel white LEDs in portable lighting systems with 3.3 V or 5 V rails.

IC Role / Device Role / Timing Role: Low-side switch controlling LED current path; replaces larger SOT-23 transistors to save board area.

Use Value: 80 mV typical V_CE(SAT) minimizes forward voltage drop, preserving >95% of supply voltage for LED string efficiency.

Use Scenario: Gate driving for external MOSFETs in buck converter feedback loops or synchronous rectifier control.

IC Role / Device Role / Timing Role: Fast-turning NPN switch translating PWM signals into clean gate drive pulses.

Use Value: 260 MHz f_T supports clean edge transitions up to ~20 MHz switching frequency without slew degradation.

Portable Audio Amplifier Stage

Load Switch for MCU Peripherals

Use Scenario: Class-A preamplifier or headphone driver output stage in battery-powered audio codecs.

IC Role / Device Role / Timing Role: Linear-mode amplification element biased at 200 mA with V_CE = 2 V for low-distortion signal swing.

Use Value: h_FE = 270–680 ensures stable bias point across temperature, reducing gain drift in analog signal chains.

Use Scenario: Enabling/disabling power to sensors, displays, or USB peripherals under microcontroller GPIO control.

IC Role / Device Role / Timing Role: High-gain, low-saturation switch isolating downstream loads from main power rail.

Use Value: 1.5 A I_C rating allows direct control of 500 mA–1 A loads without external driver staging.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN low-saturation switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT2222ALT1G	V_CE(SAT) = 1 V max @ I_C = 500 mA - 5× higher than 2DD2652-7; h_FE = 100 min.	Higher conduction loss limits use in high-efficiency battery systems; suitable only where thermal margin exceeds 300 mW.	Select when legacy footprint compatibility outweighs efficiency needs; verify thermal relief on PCB.
DXT2012P5-7	V_CE(SAT) = 110 mV typ @ same conditions; SOT-523 (smaller) but lower I_C = 1.0 A continuous.	Smaller size trades off current capacity - acceptable for <800 mA loads but not 1.5 A peak pulse.	Choose for ultra-dense layouts where 1.0 A rating suffices and 0.2 mm² area reduction is critical.

Compared with MMBT2222ALT1G and DXT2012P5-7, the 2DD2652-7 uniquely balances sub-200 mV saturation, 1.5 A current capability, and SOT-323 manufacturability - making it optimal for cost-sensitive, thermally constrained 3–12 V switching nodes.

Availability

2DD2652-7 is available at Aetrix Electronics and suitable for LED driver modules, DC-DC converter control stages, portable audio amplifier outputs, and MCU peripheral load switching requiring stable component supply and RoHS-compliant sourcing.

Supply support for 2DD2652-7 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 and manufacturing operations across Asia and the Americas.

The 2DD2652-7 belongs to Diodes' low-V_CE(SAT) NPN transistor product line, engineered specifically for high-efficiency, space-constrained switching in portable and industrial power management systems.

FAQ

What is the maximum allowable base current for continuous operation?

The datasheet specifies I_CM = 3 A peak pulse collector current with I_B = 25 mA, but does not define a separate continuous I_B limit. Engineering practice limits continuous base current to ≤10 mA to avoid thermal runaway at T_A > 70 °C, given the device's 250 °C/W R_θJA and 500 mW P_D rating with enhanced copper layout.

Does 2DD2652-7 support pulsed operation beyond its continuous I_C rating?

Yes - the datasheet defines I_CM = 3 A peak pulse collector current under pulsed conditions (300 μs width, ≤2% duty cycle). This enables short-duration surge handling in motor commutation or capacitor charging circuits, provided average power remains within 500 mW thermal limits.

How does the "Green" molding compound affect solder reflow profiles?

The "Green" compound meets IPC-J-STD-020D Level 1 moisture sensitivity and supports standard lead-free reflow profiles (peak 260 °C, 60 sec max above 217 °C). No special pre-bake is required, and the UL 94V-0 rating ensures flame resistance without halogen additives during reflow.

Can 2DD2652-7 replace BC847B in existing designs?

No - BC847B has V_CEO = 45 V and I_C = 100 mA, while 2DD2652-7 is rated for 12 V and 1.5 A. Swapping would risk overvoltage failure in 12–45 V applications and may cause thermal overload if base drive isn't scaled for 25 mA I_B requirement. Use only in designs matching its 12 V/1.5 A envelope.

2DD2652-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 1.5 A

Voltage - Collector Emitter Breakdown (Max):: 12 V

Vce Saturation (Max) @ Ib, Ic:: 200mV @ 25mA, 500mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 270 @ 200mA, 2V

Power - Max:: 300 mW

Frequency - Transition:: 260MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

2DD2652-7 FAQ

1.How can I place an order for 2DD2652-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2DD2652-7 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 2DD2652-7 reliable?

The price and inventory of 2DD2652-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2DD2652-7 is usually 5 days.

3.What payment methods are accepted for 2DD2652-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2DD2652-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2DD2652-7?

2DD2652-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2DD2652-7 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 2DD2652-7?

For technical support, including 2DD2652-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2DD2652-7 requirements.

6.How does Aetrix verify that 2DD2652-7 is sourced from the original manufacturer or authorized distributors?

All 2DD2652-7 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 2DD2652-7 meets industry standards.

7.What is the process for return or replacement of 2DD2652-7?

All 2DD2652-7 units undergo pre-shipment inspection (PSI). If there is an issue with 2DD2652-7, 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 2DD2652-7 part is unused and in its original packaging.

Return procedure for 2DD2652-7:

1.Submit a request within 90 days.

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

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