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

Diodes Incorporated DDTC114GE-7

Name: DDTC114GE-7
Brand: Diodes Incorporated
SKU: DDTC114GE-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DDTC114GE-7

Manufacturer:: Diodes Incorporated

Category:: Single, Pre-Biased Bipolar Transistors

Package:: -

Datasheet:: DDTC114GE-7.pdf

Description:: TRANS PREBIAS NPN 150MW SOT523

Quantity:: RFQ Add To RFQ list

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Inventory:5,812

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Product details

Overview

DDTC114GE-7 from Diodes Incorporated is an NPN pre-biased small-signal transistor in SOT523 package with built-in 10 kΩ bias resistor (R2 only), 50 V V_CEO, 100 mA I_C, and h_FE ≥30 at 5 mA/5 V, used for level-shifting and digital switching in automotive body control modules.

For engineers reviewing the DDTC114GE-7 datasheet, DDTC114GE-7 pinout, DDTC114GE-7 application, or DDTC114GE-7 equivalent, key selection criteria include R2-only bias topology, AEC-Q101 qualification, SOT523 thermal resistance (833 °C/W), and guaranteed h_FE minimum under defined test conditions.

Technical Context

This device implements a single-NPN transistor with integrated base-emitter pull-down resistor (R2 = 10 kΩ ±30%), eliminating external bias components in high-speed digital interface circuits. It operates with V_CEO = 50 V and V_EBO = 5 V, supporting logic-level signal translation between 3.3 V and 5 V domains.

The SOT523 package enables compact placement on space-constrained PCBs while maintaining thermal performance up to +150 °C junction temperature. Its f_T = 250 MHz ensures adequate bandwidth for PWM-driven LED dimming and low-side load switching applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in 24 V automotive loads.
I_C (max)	100 mA - Continuous collector current limit; supports driving small relays or indicator LEDs directly.
h_FE	≥30 @ 5 mA/5 V - Minimum DC current gain; ensures reliable saturation with 0.5 mA base drive.
R2	10 kΩ ±30% - Integrated base-emitter resistor; eliminates need for external bias network in simple switch designs.
P_D	150 mW - Max power dissipation at 25 °C ambient; derates linearly above 25 °C per 833 °C/W θ_JA.
f_T	250 MHz - Gain-bandwidth product; supports switching frequencies up to ~10–20 MHz with margin.

Pinout & Package

Package: SOT523 - ultra-small surface-mount plastic case (1.60 × 1.60 × 0.75 mm), moisture sensitivity level 1, matte tin terminals, UL 94V-0 rated.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Emitter terminal	Connected internally to R2; provides reference node for bias network and current return path.
2 (Base)	Base terminal	Input control node; driven directly by MCU GPIO or logic output without external resistor.
3 (Collector)	Collector terminal	Switched output node; sinks load current to ground when saturated (V_CE(SAT) ≤ 0.3 V @ 10 mA/0.5 mA).

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control units and lighting modules per stress test requirements.
R2-only bias configuration	Single internal 10 kΩ resistor from base to emitter; simplifies layout and reduces BOM count vs. dual-resistor pre-biased types.
SOT523 footprint	0.002 g weight and 1.6 mm × 1.6 mm outline; enables high-density routing in infotainment and ADAS sensor interfaces.
Halogen & antimony free	Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb; compliant with automotive OEM green material specifications.

Applications

Automotive Door Module Switching

Industrial PLC Input Conditioning

Use Scenario: Driving window lift motor enable signals and door lock actuator coils in 12 V body control units.

IC Role / Device Role / Timing Role: Low-side switch controlling 50–80 mA solenoid loads with fast turn-on/turn-off response.

Use Value: Eliminates discrete base resistor, reducing component count and improving reliability over temperature (-40 °C to +125 °C).

Use Scenario: Converting 24 V industrial field inputs to 3.3 V logic levels for microcontroller GPIO protection.

IC Role / Device Role / Timing Role: Level translator with built-in pull-down ensuring defined logic-low state during signal transitions.

Use Value: Prevents floating input states and reduces ESD susceptibility via integrated R2 termination.

LED Status Indicator Driver

USB Port Power Switch Control

Use Scenario: Driving multi-color status LEDs in medical diagnostic equipment with tight board space constraints.

IC Role / Device Role / Timing Role: Constant-current switch enabling precise brightness control via PWM at 1–10 kHz.

Use Value: V_CE(SAT) ≤ 0.3 V minimizes voltage drop across series resistor, preserving LED forward voltage margin.

Use Scenario: Enabling/disabling 5 V USB VBUS supply in portable docking stations using 1.8 V or 3.3 V host controller outputs.

IC Role / Device Role / Timing Role: Logic-level controlled load switch with fast enable/disable timing (<100 ns propagation delay implied by f_T).

Use Value: R2 ensures clean turn-off even with weak-drive controllers, preventing partial conduction and thermal runaway.

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
NSV114GRUTWG	R2 = 10 kΩ, but uses SC-70 package (larger than SOT523); θ_JA = 450 °C/W vs. 833 °C/W.	Higher power handling (200 mW), less suitable for ultra-dense layouts.	Select when higher thermal margin is required and board area permits larger footprint.
EMH11T2R	Same SOT523 package, but R2 = 4.7 kΩ; h_FE min = 56 vs. 30; not AEC-Q101 qualified.	Higher base drive sensitivity; intended for consumer-grade portable electronics.	Select for cost-sensitive non-automotive designs where tighter h_FE tolerance and lower R2 are acceptable.

Compared with NSV114GRUTWG and EMH11T2R, DDTC114GE-7 uniquely balances AEC-Q101 compliance, minimal footprint, and guaranteed low-R2 biasing-making it optimal for space-constrained automotive signal switching where qualification and consistency are mandatory.

Availability

DDTC114GE-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial I/O conditioning, and portable medical device design requiring stable component supply and long-term lifecycle support.

Supply support for DDTC114GE-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.

This part belongs to the DDTC R2-Only Series of pre-biased transistors, designed specifically for simplified digital switching in automotive and industrial control systems where board space and qualification rigor are critical.

FAQ

What is the function of the internal R2 resistor in DDTC114GE-7?

The internal R2 resistor (10 kΩ) connects the base to emitter, providing automatic turn-off biasing when the base drive is removed. This prevents latch-up or undefined states in digital switching applications and eliminates the need for an external pull-down resistor, reducing PCB area and BOM count.

Is DDTC114GE-7 suitable for 24 V industrial applications?

Yes - its 50 V V_CEO rating provides sufficient margin for 24 V systems with transient spikes up to ±25 V. Combined with AEC-Q101 qualification and -55 °C to +150 °C operating range, it meets robustness requirements for factory automation and motor control I/O stages.

How does the SOT523 package affect thermal performance?

The SOT523 package has a high thermal resistance of 833 °C/W (junction-to-ambient), meaning it dissipates heat less efficiently than larger packages. For continuous 100 mA operation, ambient temperature must remain below ~75 °C or PCB copper area must be increased per Diodes' recommended pad layout to improve heat spreading.

Can DDTC114GE-7 replace a standard NPN transistor like BC847?

It can replace BC847 in switching applications where the circuit already includes a base resistor - but not in linear amplifier or variable-gain configurations. The fixed R2 topology limits bias flexibility; use only where guaranteed saturation with logic-level drive is required, not analog amplification.

DDTC114GE-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:: -

DDTC114GE-7 FAQ

1.How can I place an order for DDTC114GE-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DDTC114GE-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 DDTC114GE-7 reliable?

The price and inventory of DDTC114GE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTC114GE-7 is usually 5 days.

3.What payment methods are accepted for DDTC114GE-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC114GE-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DDTC114GE-7?

DDTC114GE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DDTC114GE-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 DDTC114GE-7?

For technical support, including DDTC114GE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC114GE-7 requirements.

6.How does Aetrix verify that DDTC114GE-7 is sourced from the original manufacturer or authorized distributors?

All DDTC114GE-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 DDTC114GE-7 meets industry standards.

7.What is the process for return or replacement of DDTC114GE-7?

All DDTC114GE-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTC114GE-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 DDTC114GE-7 part is unused and in its original packaging.

Return procedure for DDTC114GE-7:

1.Submit a request within 90 days.

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

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