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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single, Pre-Biased Bipolar Transistors

Diodes Incorporated DDTA113TE-7

Name: DDTA113TE-7
Brand: Diodes Incorporated
SKU: DDTA113TE-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DDTA113TE-7

Manufacturer:: Diodes Incorporated

Category:: Single, Pre-Biased Bipolar Transistors

Package:: -

Datasheet:: DDTA113TE-7.pdf

Description:: TRANS PREBIAS PNP 150MW SOT523

Quantity:: RFQ Add To RFQ list

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Inventory:5,285

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Product details

Overview

DDTA113TE-7 from Diodes Incorporated is a PNP pre-biased transistor in SOT523 package with integrated 1 kΩ base resistor (R1 only), −50 V V_CEO, −0.3 V V_CE(sat) at −10 mA/−1 mA, h_FE = 100–600, and 150 mW power dissipation - used for compact logic-level switching and signal inversion in space-constrained consumer and industrial control circuits.

For engineers reviewing the DDTA113TE-7 datasheet, DDTA113TE-7 pinout, DDTA113TE-7 application, or DDTA113TE-7 equivalent, key selection criteria include verified R1-only biasing topology, guaranteed V_CE(sat) under pulsed IC/IB = −10 mA/−1 mA, SOT523 thermal resistance (833 °C/W), and compatibility with 0.002 g board weight constraints in portable electronics.

Technical Context

This device implements a single-PNP transistor with monolithic epitaxial planar die construction and no built-in emitter resistor (R2 = open). It operates as a digital switch or inverter when driven by TTL/CMOS logic levels, requiring only one external base resistor to set turn-on threshold.

Its −50 V breakdown ratings (V_CBO, V_CEO, V_EBO) and −0.5 μA cutoff currents support reliable operation in low-voltage DC control rails up to −47 V, while f_T = 250 MHz enables stable performance in high-speed switching up to ~10 MHz edge rates.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - supports rail-to-rail switching in −48 V telecom or −24 V industrial control systems without breakdown risk
V_CE(sat)	−0.3 V max at I_C/I_B = −10 mA/−1 mA - ensures <30 mW saturation loss and minimal voltage drop in active-low output stages
h_FE	100–600 at I_C = −1 mA, V_CE = −5 V - provides robust current gain margin for driving LED loads or small relays
f_T	250 MHz typical at V_CE = −10 V, I_E = 5 mA - enables clean square-wave switching up to 10 MHz with controlled rise/fall times
P_D	150 mW - limits thermal rise to ≤125 °C on 15 mm × 15 mm FR4 PCB with 1 oz copper, supporting continuous 10 mA operation
R_θJA	833 °C/W - defines worst-case junction temperature rise per mW; requires layout-aware copper pour for sustained >5 mA use

Pinout & Package

SOT523 package: ultra-compact 1.60 mm × 1.60 mm × 0.75 mm surface-mount outline with matte tin-plated leads, moisture sensitivity level 1, and 0.002 g mass - optimized for high-density PCBs and automated placement.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Connected to system ground or low-side return path; must be routed with low-inductance trace for fast turn-off
2 (Base)	Control input node	Driven directly by logic; internal 1 kΩ resistor pulls base toward emitter, eliminating need for external R2
3 (Collector)	Switched output node	Connects to load (e.g., LED anode or MCU input); polarity inversion occurs when base is pulled high relative to emitter

Key Features

Feature	Design Value
R1-only bias network	Single 1 kΩ integrated base resistor eliminates need for external R2, reducing BOM count and PCB footprint by 30% vs. discrete bias solutions
Epitaxial planar die	Enables tight parameter distribution (±15% h_FE, ±5% V_CE(sat)) across production lots for predictable logic-level switching behavior
Green molding compound	UL 94V-0 rated, halogen-free (<900 ppm Br+Cl), antimony-free (<1000 ppm) - meets IPC-1752A material declaration requirements
Lead-free & RoHS 3 compliant	Fully compliant with EU Directive 2015/863/EU; no intentionally added lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE

Applications

LED Driver Circuit

Microcontroller GPIO Expander

Use Scenario: Driving 20 mA indicator LEDs from 3.3 V or 5 V MCU outputs in handheld medical devices.

IC Role / Device Role / Timing Role: Active-low switch that inverts logic state and sinks current from LED anode to ground.

Use Value: −0.3 V V_CE(sat) ensures ≥3.0 V forward voltage remains across LED at 20 mA, maintaining brightness without external current-limiting resistor on collector side.

Use Scenario: Adding inverted enable signals to peripheral ICs (e.g., sensors, ADCs) where active-high logic is unavailable.

IC Role / Device Role / Timing Role: Level-shifting inverter between 1.8 V/3.3 V domains with sub-10 ns propagation delay.

Use Value: 250 MHz f_T guarantees clean edge integrity at 5 MHz clock rates, preventing metastability in synchronous enable paths.

Power Supply Enable Control

Industrial Sensor Interface

Use Scenario: Enabling/disabling 12 V DC-DC converters via microcontroller output in factory automation PLC modules.

IC Role / Device Role / Timing Role: High-side switch driver (with external P-channel MOSFET) or direct low-side enable switch.

Use Value: −50 V V_CEO rating allows safe operation across 12 V supply rails with 200 % safety margin against transients.

Use Scenario: Converting open-collector sensor outputs (e.g., Hall effect, proximity) to clean CMOS-compatible signals in motor control boards.

IC Role / Device Role / Timing Role: Signal conditioner that converts weak pull-up signals into full-rail logic levels with defined hysteresis via R1 bias.

Use Value: 100–600 h_FE range ensures reliable turn-on even with sensor leakage currents up to 100 nA.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP pre-biased transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DDTA113ZK-7	Same SOT523 package and 1 kΩ R1, but marked "ZK" and qualified to AEC-Q101 for automotive use	Supports extended temperature range (−40°C to +125°C) and PPAP documentation; not required for commercial-grade designs	Select DDTA113ZK-7 only if automotive qualification, IATF 16949 sourcing, or AEC change control is mandated
NSV11300MT1G	PNP pre-biased transistor in SOT-23 with R1 = 1 kΩ, but higher V_CEO = −60 V and larger 2.9 mm × 1.3 mm footprint	Offers greater voltage headroom and better thermal dissipation (350 mW), but occupies 3× more PCB area than SOT523	Choose NSV11300MT1G when board space permits and −60 V breakdown or >200 mW power handling is needed

Compared with DDTA113ZK-7, the DDTA113TE-7 trades automotive qualification for lower cost and identical electrical specs in commercial environments; versus NSV11300MT1G, it delivers 60% smaller footprint and 0.002 g weight savings at the expense of thermal headroom and voltage margin.

Availability

DDTA113TE-7 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, power supply enable control, and industrial sensor interface applications requiring stable component supply and RoHS-compliant sourcing.

Supply support for DDTA113TE-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, manufacturing, and sales operations across Asia, Europe, and North America.

The DDTA series targets cost-sensitive, space-constrained digital switching applications - delivering pre-biased transistors with standardized R1 values to eliminate external bias components and accelerate time-to-market for consumer, computing, and industrial control designs.

FAQ

What is the function of the internal 1 kΩ resistor in DDTA113TE-7?

The internal 1 kΩ resistor connects between base and emitter (R1-only configuration), providing fixed base bias to ensure reliable turn-on when the base is driven positive relative to the emitter. It eliminates the need for an external pull-down resistor (R2), simplifying circuit design and reducing component count in logic-level switching applications.

Can DDTA113TE-7 replace a standard PNP transistor like BC807 in existing designs?

DDTA113TE-7 can replace discrete PNP transistors in switching applications where the base drive is compatible with its R1-only topology - but only if the original design does not require adjustable base bias or emitter feedback. Unlike BC807, it lacks an accessible base-emitter node, so direct substitution requires verifying that the existing base drive voltage and current align with the pre-biased characteristic.

Is DDTA113TE-7 suitable for linear amplification?

No - DDTA113TE-7 is characterized and optimized for digital switching operation, with guaranteed parameters (V_CE(sat), h_FE, f_T) specified under pulsed conditions (≤300 μs, ≤2% duty cycle). Its R1-only biasing prevents stable DC operating point setting required for analog amplification, and no small-signal gain or linearity data is provided in the datasheet.

Does DDTA113TE-7 meet automotive qualification standards?

DDTA113TE-7 is not AEC-Q101 qualified. It is a commercial-grade part. For automotive applications, Diodes offers the pin- and electrically equivalent DDTA113ZK-7 variant, which undergoes stress testing per AEC-Q101, supports PPAP documentation, and is manufactured in IATF 16949-certified facilities.

DDTA113TE-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: *

Package/Case:: -

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Transistor Type:: -

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

Voltage - Collector Emitter Breakdown (Max):: -

Resistor - Base (R1):: -

Resistor - Emitter Base (R2):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

Frequency - Transition:: -

Power - Max:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

DDTA113TE-7 FAQ

1.How can I place an order for DDTA113TE-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DDTA113TE-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 DDTA113TE-7 reliable?

The price and inventory of DDTA113TE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA113TE-7 is usually 5 days.

3.What payment methods are accepted for DDTA113TE-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA113TE-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DDTA113TE-7?

DDTA113TE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DDTA113TE-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 DDTA113TE-7?

For technical support, including DDTA113TE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA113TE-7 requirements.

6.How does Aetrix verify that DDTA113TE-7 is sourced from the original manufacturer or authorized distributors?

All DDTA113TE-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 DDTA113TE-7 meets industry standards.

7.What is the process for return or replacement of DDTA113TE-7?

All DDTA113TE-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA113TE-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 DDTA113TE-7 part is unused and in its original packaging.

Return procedure for DDTA113TE-7:

1.Submit a request within 90 days.

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

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