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Diodes Incorporated DDTA114TCA-7
- Part No.:
- DDTA114TCA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SOT-23-3 Flat Leads
- Datasheet:
-
DDTA114TCA-7.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT23F
- Quantity:
- Payment:
- Shipping:
Inventory:8,657
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Product details
Overview
DDTA114TCA-7 from Diodes Incorporated is a PNP pre-biased transistor in SOT23 package with built-in 10 kΩ base bias resistor (R1 only), −50 V VCEO, −100 mA IC, 200 mW power dissipation, and hFE of 100–600 at IC = −1 mA. It serves as a compact, lead-free switching element in low-voltage logic interface and LED driver circuits.
For engineers reviewing the DDTA114TCA-7 datasheet, DDTA114TCA-7 pinout, DDTA114TCA-7 application, or DDTA114TCA-7 equivalent, key selection criteria include verified R1-only biasing topology, guaranteed VCE(sat) ≤ −0.3 V at IC/IB = −5 mA/−0.5 mA, AEC-Q101 qualification eligibility, and SOT23 thermal performance under FR4 mounting conditions.
Technical Context
This device implements a monolithic PNP bipolar junction transistor with a single integrated 10 kΩ base resistor (R1), eliminating external bias components. Its epitaxial planar die construction ensures stable gain and low leakage across −55°C to +150°C operating range.
It operates as a saturated switch with guaranteed VCE(sat) ≤ −0.3 V under defined drive conditions and supports DC current transfer ratios from 100 to 600. The absence of R2 simplifies PCB layout for discrete logic-level translation and low-side load control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum allowable collector-emitter voltage before breakdown; defines safe operating range in 24 V and lower automotive/industrial supply rails. |
| IC (max) | −100 mA - Continuous collector current limit; supports driving LEDs, relays, or small solenoids without external current limiting. |
| R1 | 10 kΩ ±30% - Integrated base bias resistor enables direct microcontroller GPIO interfacing without external pull-up/down components. |
| VCE(sat) | ≤ −0.3 V at IC/IB = −5 mA/−0.5 mA - Ensures minimal conduction loss and efficient switching in battery-powered sensor nodes. |
| hFE | 100–600 at IC = −1 mA, VCE = −5 V - Wide DC current gain range accommodates production variation while maintaining reliable saturation. |
| PD | 200 mW - Power dissipation rating on FR4 board with minimum pad layout; constrains maximum continuous IC in ambient >70°C environments. |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1, UL 94V-0 rated molding compound, and 0.008 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (Pin 1) | Current sink terminal | Connected to system ground or low-side return path; polarity must match PNP configuration. |
| Base (Pin 2) | Bias input node | Internally connected to 10 kΩ resistor; accepts logic-high signal to turn device ON (active-low control). |
| Collector (Pin 3) | Switched output terminal | Drives load between VCC and collector; requires external load connection to positive rail. |
Key Features
| Feature | Design Value |
|---|---|
| R1-only bias network | Single 10 kΩ resistor eliminates need for external base resistor, reducing BOM count and layout area in space-constrained designs. |
| AEC-Q101 readiness | Manufactured in IATF 16949 certified facilities with PPAP capability; supports automotive subsystems requiring change-controlled components. |
| Green compound packaging | Halogen- and antimony-free molding compound (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) meets global environmental compliance mandates. |
| SOT23 thermal performance | RθJA = 625°C/W on FR4 board enables operation up to +125°C ambient when derated per Figure 1. |
Applications
| LED Driver Circuit | Microcontroller GPIO Interface |
|---|---|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V or 5 V logic rails in portable instrumentation. IC Role / Device Role / Timing Role: PNP switch controlling current flow from VCC to LED anode; emitter grounded, collector tied to LED cathode via current-limiting resistor. Use Value: Eliminates need for external base resistor and supports direct GPIO control with predictable VCE(sat) ≤ −0.3 V, minimizing power loss. |
Use Scenario: Level-shifting and inverting signals between 1.8 V/3.3 V microcontrollers and 5 V peripherals. IC Role / Device Role / Timing Role: Active-low logic inverter with fixed gain; base driven high to disable, low to enable collector pull-down action. Use Value: Provides deterministic switching threshold and avoids floating inputs due to internal R1 pull-up to VCC. |
| Automotive Door Module | Industrial Sensor Signal Conditioning |
Use Scenario: Controlling window motor relay coils or interior lighting loads in AEC-Q101–aligned body electronics modules. IC Role / Device Role / Timing Role: Low-side switch for 12 V loads; used with external flyback diode and MCU-driven base control. Use Value: Qualified manufacturing process and −55°C to +150°C operating range ensure reliability in under-hood and door cavity environments. |
Use Scenario: Isolating and buffering analog sensor outputs (e.g., thermistor networks) from noisy digital sections in PLC I/O cards. IC Role / Device Role / Timing Role: Discrete buffer stage providing current gain and galvanic separation between sensor front-end and ADC input. Use Value: Stable hFE over temperature and low leakage (ICBO, IEBO ≤ −0.5 μA) preserve measurement accuracy in precision analog paths. |
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 |
|---|---|---|---|
| DDTA124TCA-7-F | 22 kΩ R1 (vs. 10 kΩ); otherwise identical electrical specs and package | Higher base resistance reduces drive current, suited for lower IC applications (<2 mA) or higher-impedance GPIO sources | Select when microcontroller output current is limited or when reduced base loading improves noise immunity. |
| NSVDDTA114DXV6T1G | Same R1 value (10 kΩ), but AEC-Q101 qualified and optimized for automotive-grade reliability testing | Approved for safety-critical automotive functions where PPAP documentation and failure rate data are mandatory | Choose for Tier 1 automotive programs requiring full AEC-Q101 certification and traceable lot history. |
Compared with DDTA124TCA-7-F and NSVDDTA114DXV6T1G, DDTA114TCA-7 offers optimal balance of drive strength and GPIO compatibility for industrial and consumer applications where AEC-Q101 is not mandated but RoHS/Green compliance is required.
Availability
DDTA114TCA-7 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO interface designs, and automotive door module implementations requiring stable component supply and consistent SOT23 form factor.
Supply support for DDTA114TCA-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, specializing in high-reliability components for automotive, industrial, and consumer markets with ISO/TS 16949 and ISO 14001 certifications.
This part belongs to the DDTA R1-only pre-biased transistor product line, designed specifically to reduce design complexity in logic-level switching applications by integrating a single precision bias resistor into standard SOT23 packaging.
FAQ
What is the function of the internal 10 kΩ resistor in DDTA114TCA-7?
The internal 10 kΩ resistor connects between the base and emitter terminals, forming a fixed R1-only bias network that allows direct connection to a logic-high signal to turn the PNP transistor ON. This eliminates the need for an external base resistor and ensures consistent saturation behavior across temperature and process variation.
Can DDTA114TCA-7 be used in automotive applications?
Yes - DDTA114TCA-7 is manufactured in IATF 16949 certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101, it is designated for automotive applications requiring specific change control; final qualification depends on customer-specific test plans and stress requirements.
How does the SOT23 package affect thermal performance?
Mounted on FR4 with minimum recommended pad layout, the SOT23 package delivers RθJA = 625°C/W. At 200 mW power dissipation, this results in ~125°C junction rise above ambient - requiring derating above +25°C ambient per Figure 1 to maintain TJ ≤ +150°C.
Is there a complementary NPN version of DDTA114TCA-7?
Yes - DDTC114TCA-7-F is the complementary NPN pre-biased transistor with matching 10 kΩ R1 value, identical SOT23 package, and symmetrical absolute maximum ratings (e.g., +50 V VCEO, +100 mA IC), enabling push-pull or dual-rail interface designs.
DDTA114TCA-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-3 Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- PNP - 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:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23F
DDTA114TCA-7 FAQ
1.How can I place an order for DDTA114TCA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA114TCA-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 DDTA114TCA-7 reliable?
The price and inventory of DDTA114TCA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA114TCA-7 is usually 5 days.
3.What payment methods are accepted for DDTA114TCA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA114TCA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA114TCA-7?
DDTA114TCA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA114TCA-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 DDTA114TCA-7?
For technical support, including DDTA114TCA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA114TCA-7 requirements.
6.How does Aetrix verify that DDTA114TCA-7 is sourced from the original manufacturer or authorized distributors?
All DDTA114TCA-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 DDTA114TCA-7 meets industry standards.
7.What is the process for return or replacement of DDTA114TCA-7?
All DDTA114TCA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA114TCA-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 DDTA114TCA-7 part is unused and in its original packaging.
Return procedure for DDTA114TCA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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