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Diodes Incorporated DDTC114TE-7
- Part No.:
- DDTC114TE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SOT-523
- Datasheet:
-
DDTC114TE-7.pdf
- Description:
- TRANS PREBIAS NPN 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:3,578
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Product details
Overview
DDTC114TE-7 from Diodes Incorporated is an NPN pre-biased transistor in SOT523 package with integrated 10 kΩ base bias resistor (R1 only), rated for 50 V VCEO, 100 mA IC(MAX), and 150 mW power dissipation - used in compact logic-level switching and signal conditioning circuits in automotive body control modules and portable power management.
For engineers reviewing the DDTC114TE-7 datasheet, DDTC114TE-7 pinout, DDTC114TE-7 application, or DDTC114TE-7 equivalent, key selection criteria include verified R1 tolerance (±30%), guaranteed hFE range (100–600), VCE(sat) ≤ 0.3 V at IC/IB = 5 mA/0.5 mA, AEC-Q101 qualification, and SOT523 thermal resistance (833 °C/W).
Technical Context
This device integrates a single NPN silicon epitaxial planar transistor with one external-base-connected resistor (R1 = 10 kΩ nominal), eliminating discrete bias network design. It operates as a digital switch with defined saturation behavior under fixed-current drive conditions.
Its electrical performance is characterized at TA = +25°C with validated breakdown voltages (VCBO = 50 V, VEBO = 5 V), low leakage (ICBO, IEBO ≤ 0.5 µA), and gain-bandwidth product fT = 250 MHz - enabling reliable high-speed switching up to ~10 MHz in buffered gate-drive or level-shift applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - supports rail-to-rail switching in 24 V automotive and 3.3/5 V logic systems without breakdown risk |
| IC(MAX) | 100 mA - sufficient for driving small relays, LEDs, or MOSFET gates in low-power interface stages |
| R1 (Nominal) | 10 kΩ ±30% - sets predictable base current for consistent turn-on threshold and saturation margin |
| VCE(sat) | ≤ 0.3 V at IC/IB = 5 mA/0.5 mA - ensures minimal conduction loss and thermal rise in continuous-duty switching |
| hFE | 100–600 at IC = 1 mA, VCE = 5 V - provides wide gain margin for stable operation across temperature and process variation |
| fT | 250 MHz - enables use in pulse-width modulation (PWM) signal buffering up to ~10 MHz with controlled edge fidelity |
Pinout & Package
Package: SOT523 - ultra-small surface-mount plastic case (1.60 × 1.60 × 0.33 mm), moisture sensitivity level 1, matte tin terminals, UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink node | Connected to ground or low-side return path; defines reference for VBE and saturation voltage measurement |
| Base (B) | Control input via R1 | Internally connected to R1 top terminal; accepts logic-level voltage to enable current flow through collector-emitter path |
| Collector (C) | Current source node | Connected to load and supply rail; carries switched current with minimal voltage drop in saturation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 bias resistor | 10 kΩ ±30% - eliminates two external components and PCB area in digital switch designs |
| AEC-Q101 qualification | Qualified for automotive applications including BCM, lighting control, and sensor interface modules |
| Green construction | Halogen- and antimony-free, RoHS 3 compliant (Br+Cl < 1500 ppm, Sb < 1000 ppm) |
| SOT523 thermal performance | RθJA = 833 °C/W on FR-4 - enables operation up to +125°C ambient in space-constrained layouts |
Applications
| Automotive Body Control Module | USB Port Power Switching |
|---|---|
Use Scenario: Controlling door lock actuators and interior lighting loads in 12 V vehicle systems. IC Role / Device Role / Timing Role: NPN pre-biased switch providing logic-compatible on/off control of resistive and inductive loads. Use Value: Eliminates need for external base resistor network while maintaining AEC-Q101 reliability and <0.3 V saturation loss. | Use Scenario: Enabling/disabling VBUS power to downstream USB peripherals in portable docking stations. IC Role / Device Role / Timing Role: Low-side load switch driven by microcontroller GPIO with fast turn-on/turn-off response. Use Value: Delivers 100 mA switching capability with predictable hFE and minimal board footprint in SOT523. |
| IoT Sensor Interface | Industrial PLC Input Conditioning |
Use Scenario: Level-shifting and isolation of digital signals from MEMS sensors to MCU inputs in battery-powered nodes. IC Role / Device Role / Timing Role: Signal translator converting open-drain or 5 V logic to 3.3 V compatible levels with current limiting. Use Value: Integrated R1 ensures stable biasing across temperature, reducing calibration drift in long-life deployments. | Use Scenario: Converting 24 V industrial field signals into clean 5 V logic levels for FPGA or microcontroller input capture. IC Role / Device Role / Timing Role: High-voltage tolerant digital buffer with ESD-protected terminals and low leakage (<0.5 µA). Use Value: Withstands 50 V VCBO and operates reliably over –55°C to +150°C ambient range in harsh environments. |
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 |
|---|---|---|---|
| DDTC114YCA-7-F | R1 = 10 kΩ, but includes both R1 and R2 resistors (dual-resistor configuration); hFE min = 160 | Offers tighter gain consistency and dual-resistor biasing for improved noise immunity in sensitive analog interfaces | Select when higher hFE minimum and dual-resistor stability outweigh SOT523 size constraints |
| NSV11400MT1G | Same R1 = 10 kΩ, but packaged in SOT-23; VCEO = 50 V, IC(MAX) = 100 mA, RθJA = 300 °C/W | Higher thermal performance allows higher continuous current in non-space-constrained boards | Select when thermal headroom > electrical specs, and SOT-23 assembly infrastructure is already established |
Compared with DDTC114TE-7, DDTC114YCA-7-F adds R2 for enhanced bias stability at cost of slightly larger die area, while NSV11400MT1G trades miniaturization for superior thermal dissipation - making DDTC114TE-7 optimal where board area and AEC-Q101 compliance are primary constraints.
Availability
DDTC114TE-7 is available at Aetrix Electronics and suitable for automotive body control modules, USB power switching, IoT sensor interfaces, and industrial PLC input conditioning requiring stable component supply and full traceability.
Supply support for DDTC114TE-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, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The DDTC (R1-ONLY SERIES) E product line delivers standardized pre-biased transistors optimized for space-constrained digital switching in automotive and portable electronics - emphasizing AEC-Q101 compliance, green packaging, and simplified layout.
FAQ
What is the function of the internal resistor in DDTC114TE-7?
The internal 10 kΩ resistor (R1) connects between the base and emitter terminals, providing fixed base bias to ensure reliable NPN transistor turn-on with logic-level input voltage. It eliminates the need for an external pull-down or current-limiting resistor, simplifying circuit design and reducing PCB footprint in digital switching applications.
Is DDTC114TE-7 qualified for automotive use?
Yes - DDTC114TE-7 is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. Its construction meets automotive requirements for temperature cycling (–55°C to +150°C), humidity resistance, and long-term reliability in body control, lighting, and sensor interface modules.
How does the SOT523 package affect thermal performance?
The SOT523 package has a junction-to-ambient thermal resistance (RθJA) of 833 °C/W on standard FR-4 PCBs. This limits continuous power dissipation to 150 mW at +25°C ambient, requiring derating above 25°C - e.g., ~75 mW at +85°C ambient - making it suitable for intermittent or low-duty-cycle switching.
Can DDTC114TE-7 replace a standard NPN transistor like BC847?
No - DDTC114TE-7 is not a direct replacement for BC847 because it includes an integrated 10 kΩ base-emitter resistor and lacks independent base access. It functions as a pre-biased digital switch, whereas BC847 requires external biasing. Substitution requires circuit redesign to accommodate the built-in R1 topology and verify VCE(sat) and hFE compatibility.
DDTC114TE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 10 kOhms
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 100µA, 1mA
- Current - Collector Cutoff (Max):
- 500nA (ICBO)
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 150 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
DDTC114TE-7 FAQ
1.How can I place an order for DDTC114TE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTC114TE-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 DDTC114TE-7 reliable?
The price and inventory of DDTC114TE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTC114TE-7 is usually 5 days.
3.What payment methods are accepted for DDTC114TE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC114TE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTC114TE-7?
DDTC114TE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTC114TE-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 DDTC114TE-7?
For technical support, including DDTC114TE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC114TE-7 requirements.
6.How does Aetrix verify that DDTC114TE-7 is sourced from the original manufacturer or authorized distributors?
All DDTC114TE-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 DDTC114TE-7 meets industry standards.
7.What is the process for return or replacement of DDTC114TE-7?
All DDTC114TE-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTC114TE-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 DDTC114TE-7 part is unused and in its original packaging.
Return procedure for DDTC114TE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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