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

Diodes Incorporated DDTD113ZC-7-F

Name: DDTD113ZC-7-F
Brand: Diodes Incorporated
SKU: DDTD113ZC-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DDTD113ZC-7-F

Manufacturer:: Diodes Incorporated

Category:: Single, Pre-Biased Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: DDTD113ZC-7-F.pdf

Description:: TRANS PREBIAS NPN 50V SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:732,786

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Product details

Overview

DDTD113ZC-7-F from Diodes Incorporated is an NPN pre-biased digital transistor in SOT23 package, featuring integrated 1kΩ and 10kΩ bias resistors, 500mA continuous collector current, V_CEO = 40V, and V_CE(sat) ≤ 0.3V at I_C = 50mA/I_B = 2.5mA. It serves as a compact, reliable switch in low-voltage logic-level interface circuits for automotive body control modules.

For engineers reviewing the DDTD113ZC-7-F datasheet, DDTD113ZC-7-F pinout, DDTD113ZC-7-F application, or DDTD113ZC-7-F equivalent, key selection criteria include input threshold voltage (V_IN(on) = 3.0V), DC current gain (G_L = 56), thermal resistance (R_θJA = 500°C/W), and AEC-Q101 qualification status for automotive-grade reliability.

Technical Context

This device integrates two precision thin-film resistors (R1 = 1kΩ, R2 = 10kΩ) directly on-chip to configure base biasing, eliminating external components and reducing PCB footprint. Its epitaxial planar construction ensures stable h_FE and low V_CE(sat) across temperature.

The transistor operates with guaranteed switching performance under 5V logic drive: V_IN(off) = 0.3V max ensures noise immunity, while V_IN(on) = 3.0V at I_O = 20mA defines clean turn-on behavior in microcontroller GPIO-driven loads.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40V - Maximum safe collector-emitter voltage before breakdown; supports 24V automotive supply rails with margin.
I_C	500mA - Continuous collector current rating; enables direct driving of small relays or LED strings.
V_CE(sat)	≤0.3V @ 50mA/2.5mA - Low saturation voltage minimizes power loss and self-heating in high-duty-cycle switching.
R1 / R2	1kΩ / 10kΩ - Precise on-die bias network eliminates external resistor placement and matching tolerance errors.
G_L	56 - Guaranteed current gain at V_O = 5V, I_O = 50mA; ensures robust saturation under worst-case β variation.
P_D	250mW - Power dissipation limit on FR4 board; defines maximum sustained switching frequency before thermal derating.

Pinout & Package

Package: SOT23 - Surface-mount plastic package with 3-pin configuration, 0.008g mass, UL 94V-0 rated molding compound, and matte tin-plated leads compliant with MIL-STD-202 solderability.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current return path	Connected internally to R2; provides reference node for bias network and load current return.
2 (Base)	Control input node	Internal junction of R1 and R2; accepts logic-level voltage to activate transistor without external bias calculation.
3 (Collector)	Switched output terminal	High-current output node; connects to load (e.g., relay coil or LED anode) with minimal voltage drop in saturation.

Key Features

Feature	Design Value
Integrated R1/R2 bias network	Eliminates two external resistors, reduces BOM count, and removes layout sensitivity to parasitic coupling.
AEC-Q101 qualified	Validated for automotive applications including engine control units and lighting modules per stress test requirements.
Green, halogen-free construction	Meets RoHS 3 (2015/863/EU) with Br+Cl <1500ppm and Sb <1000ppm; supports eco-compliant manufacturing.
Low V_IN(off)	0.3V maximum ensures reliable turn-off with TTL or CMOS logic outputs near ground potential.

Applications

Automotive Door Module

Industrial PLC Output Stage

Use Scenario: Switching 12V window lift motor control signals in vehicle door modules.

IC Role / Device Role / Timing Role: Digital switch translating MCU GPIO output into isolated, current-amplified drive signal.

Use Value: Integrated biasing ensures consistent turn-on timing across temperature (-40°C to +125°C) without external resistor drift.

Use Scenario: Driving 24V solenoid valves in factory automation I/O modules.

IC Role / Device Role / Timing Role: High-reliability interface between FPGA logic and inductive load.

Use Value: 40V V_CEO and 500mA I_C support direct connection to industrial 24V rails with no additional protection circuitry.

LED Lighting Driver

Consumer Appliance Control

Use Scenario: Constant-current switching for white LED strings in smart home lighting fixtures.

IC Role / Device Role / Timing Role: Low-loss current sink controlled by PWM microcontroller output.

Use Value: V_CE(sat) ≤ 0.3V limits power dissipation to <15mW at 50mA, enabling thermally constrained PCB layouts.

Use Scenario: Fan speed control and buzzer activation in refrigerator control boards.

IC Role / Device Role / Timing Role: General-purpose logic-level switch for non-critical actuator interfaces.

Use Value: SOT23 footprint and AEC-Q101 qualification allow reuse across automotive and appliance platforms with shared design validation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DDTD123YC-7-F	R1 = 2.2kΩ, R2 = 10kΩ; V_IN(on) = 3.0V at I_O = 20mA; G_L = 56	Higher input impedance; suited for higher-impedance MCU outputs or noise-sensitive environments	Select when drive current is limited or when tighter V_IN(on) consistency is required across voltage rails.
DDTD114EC-7-F	R1 = 10kΩ, R2 = 10kΩ; V_IN(on) = 4.0V at I_O = 10mA; G_L = 56	Higher input threshold; better noise immunity but requires stronger logic drive	Choose for 5V-only systems where false triggering must be minimized, such as safety interlock circuits.

Compared with DDTD113ZC-7-F, DDTD123YC-7-F offers higher input impedance for weaker drive sources, while DDTD114EC-7-F raises the turn-on threshold for improved noise rejection-both retain identical saturation performance and thermal characteristics but shift bias point trade-offs.

Availability

DDTD113ZC-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial I/O modules, and consumer appliance control requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.

Supply support for DDTD113ZC-7-F 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 computing markets with ISO/TS 16949 and IATF 16949 certified facilities.

This part belongs to the DDTD series of pre-biased transistors designed specifically for space-constrained, high-volume logic interface applications where reduced component count and AEC-Q101 compliance are mandatory.

FAQ

What is the maximum operating temperature for DDTD113ZC-7-F?

The device is rated for operation from –55°C to +150°C junction temperature. Its thermal resistance R_θJA = 500°C/W on FR4 board means ambient temperature must stay below +85°C at full 500mA load to maintain T_J ≤ 150°C, assuming standard pad layout and still-air conditions.

Is DDTD113ZC-7-F pin-compatible with standard SOT23 NPN transistors?

No-it uses the same SOT23 physical outline but has internal resistor connections that differ from bare transistors. Pin 1 is emitter, Pin 2 is base (with internal R1–R2 junction), and Pin 3 is collector. Substituting a non-pre-biased SOT23 NPN requires redesigning the base bias network and may compromise switching thresholds.

Does DDTD113ZC-7-F require external pull-down resistors?

No. The integrated 10kΩ resistor (R2) from base to emitter provides inherent pull-down functionality, ensuring reliable turn-off when the input is floating or high-impedance. This eliminates the need for external pull-down components in most microcontroller GPIO interface designs.

How does the 1kΩ/10kΩ bias ratio affect switching behavior?

The R1/R2 = 1:10 ratio sets a base current of ~2.5mA at 5V input, ensuring deep saturation (I_C/I_B ≈ 20) for 50mA loads. This guarantees V_CE(sat) ≤ 0.3V and fast turn-on, while maintaining adequate noise margin due to the low V_IN(off) of 0.3V.

DDTD113ZC-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN - Pre-Biased

Current - Collector (Ic) (Max):: 500 mA

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

Resistor - Base (R1):: 1 kOhms

Resistor - Emitter Base (R2):: 10 kOhms

DC Current Gain (hFE) (Min) @ Ic, Vce:: 56 @ 50mA, 5V

Vce Saturation (Max) @ Ib, Ic:: 300mV @ 2.5mA, 50mA

Current - Collector Cutoff (Max):: 500nA

Frequency - Transition:: 200 MHz

Power - Max:: 200 mW

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

DDTD113ZC-7-F FAQ

1.How can I place an order for DDTD113ZC-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for DDTD113ZC-7-F 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 DDTD113ZC-7-F reliable?

The price and inventory of DDTD113ZC-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTD113ZC-7-F is usually 5 days.

3.What payment methods are accepted for DDTD113ZC-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTD113ZC-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DDTD113ZC-7-F?

DDTD113ZC-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DDTD113ZC-7-F 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 DDTD113ZC-7-F?

For technical support, including DDTD113ZC-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTD113ZC-7-F requirements.

6.How does Aetrix verify that DDTD113ZC-7-F is sourced from the original manufacturer or authorized distributors?

All DDTD113ZC-7-F 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 DDTD113ZC-7-F meets industry standards.

7.What is the process for return or replacement of DDTD113ZC-7-F?

All DDTD113ZC-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTD113ZC-7-F, 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 DDTD113ZC-7-F part is unused and in its original packaging.

Return procedure for DDTD113ZC-7-F:

1.Submit a request within 90 days.

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

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