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Diodes Incorporated DDTA114GUA-7-F
- Part No.:
- DDTA114GUA-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
DDTA114GUA-7-F.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,606
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Product details
Overview
DDTA114GUA-7-F from Diodes Incorporated is a PNP pre-biased small-signal transistor with built-in 10 kΩ bias resistor (R2 only), rated for -50 V VCEO, -100 mA IC, and 200 mW power dissipation in SOT-323 package; used in digital switching, level translation, and LED driver circuits in consumer and industrial control modules.
For engineers reviewing the DDTA114GUA-7-F datasheet, DDTA114GUA-7-F pinout, DDTA114GUA-7-F application, or DDTA114GUA-7-F equivalent, key selection criteria include verified R2-only bias configuration, guaranteed hFE ≥30 at IC = -5 mA, VCE(sat) ≤ -0.3 V, ESD robustness per JESD22-A114, and RoHS-compliant green molding compound.
Technical Context
This device integrates a single PNP bipolar junction transistor with an on-die 10 kΩ base-emitter pull-up resistor (R2), eliminating external bias components. It operates as a saturated switch under IB = -0.5 mA drive, delivering VCE(sat) ≤ -0.3 V at IC = -10 mA.
The SOT-323 package supports high-density PCB layouts with thermal resistance RθJA = 625 °C/W on FR4, and JEDEC Level 1 moisture sensitivity enables standard reflow without baking. Its -55 °C to +150 °C operating range suits automotive body electronics and industrial sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -50 V - Maximum collector-emitter voltage before breakdown; ensures safe operation in 24 V rail switching. |
| IC (max) | -100 mA - Continuous collector current rating; supports driving medium-current loads like relays or indicator LEDs. |
| PD | 200 mW - Power dissipation limit at TA = 25 °C; defines thermal derating slope of 0.32 mW/°C above 25 °C. |
| hFE | 30 (min) at IC = -5 mA - DC current gain guarantees reliable saturation with low base drive current. |
| VCE(sat) | -0.3 V (max) at IC = -10 mA, IB = -0.5 mA - Low saturation voltage minimizes conduction loss in switching applications. |
| R2 | 10 kΩ ±30% - Integrated base-emitter bias resistor enables single-resistor logic-level interface without external components. |
| fT | 250 MHz - Gain-bandwidth product confirms suitability for signal switching up to ~10 MHz with stable gain. |
Pinout & Package
SOT-323 plastic surface-mount package with gull-wing leads; 0.006 g mass; UL 94V-0 flammability rating; matte tin-plated Alloy 42 leadframe; JEDEC MS-012 compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current sink terminal; connects to load return path or ground reference in high-side switch configurations. |
| 2 (Base) | B | Control input node tied internally to R2; accepts TTL/CMOS-compatible logic levels without external pull-up. |
| 3 (Collector) | C | Current source terminal; connects to positive supply rail when used as high-side switch or active-low driver. |
Key Features
| Feature | Design Value |
|---|---|
| R2-only internal bias network | Eliminates need for external base resistor; reduces BOM count and PCB area in digital interface circuits. |
| Green molding compound | Halogen-free, Sb2O3-free encapsulation compliant with Diodes Inc.'s environmental policy since week 0627 (2006). |
| JEDEC Level 1 moisture sensitivity | Enables standard reflow assembly without preconditioning; lowers manufacturing cost and cycle time. |
| Low VCE(sat) at rated current | Reduces power loss by >40% vs. discrete BJT + resistor solutions at IC = -10 mA. |
Applications
| LED Driver Circuit | Microcontroller GPIO Interface |
|---|---|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V or 5 V microcontroller outputs. IC Role / Device Role / Timing Role: High-side current sink switch controlled directly by MCU GPIO pin. Use Value: Eliminates external base resistor; ensures full saturation at IB = -0.5 mA, reducing GPIO loading and simplifying layout. | Use Scenario: Level-shifting and inverting logic signals between mixed-voltage domains (e.g., 1.8 V MCU to 5 V peripheral). IC Role / Device Role / Timing Role: Digital inverter with defined threshold and fast edge response. Use Value: Guaranteed hFE ≥30 and fT = 250 MHz support clean 10 MHz signal inversion without added propagation delay. |
| Relay Driver Stage | Power Supply Enable Control |
Use Scenario: Switching 50–80 mA relay coils in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Saturated PNP switch enabling coil energization via low-side open-collector driver. Use Value: VCE(sat) ≤ -0.3 V limits coil voltage drop to <0.3 V, ensuring >95% nominal coil voltage delivery. | Use Scenario: Enabling/disabling auxiliary 12 V rails in embedded power management subsystems. IC Role / Device Role / Timing Role: High-side enable switch controlled by system supervisor IC or PMIC output. Use Value: -50 V VCEO rating provides 2× margin over 12 V rail, supporting transient tolerance up to ±25 V. |
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 |
|---|---|---|---|
| DDTA114YCA-7-F | Same die, SOT-23 package; larger footprint and higher RθJA (500 °C/W). | Less suitable for ultra-dense layouts; requires larger pad area and more board space. | Select when legacy SOT-23 tooling or higher power handling (300 mW) is prioritized over miniaturization. |
| NSVDDTA114GUT5G | Automotive-grade variant (AEC-Q101 qualified); identical electrical specs but tighter R2 tolerance (±20%). | Required for automotive body control modules; not necessary for commercial-grade applications. | Choose only if AEC-Q101 qualification and extended temperature validation (-40 °C to +150 °C) are mandated. |
Compared with DDTA114YCA-7-F and NSVDDTA114GUT5G, DDTA114GUA-7-F offers optimal balance of miniaturization (SOT-323), commercial-grade reliability, and cost efficiency for non-automotive digital switching-without sacrificing verified VCE(sat) or hFE performance.
Availability
DDTA114GUA-7-F is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO interfaces, and relay driver stages requiring stable component supply across production lifecycles.
Supply support for DDTA114GUA-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
This part belongs to the DDTA R2-only pre-biased transistor series, engineered specifically for simplified digital switching in space-constrained consumer, computing, and industrial control applications where board area and BOM reduction are critical.
FAQ
What is the function of the internal R2 resistor in DDTA114GUA-7-F?
The internal R2 resistor is a 10 kΩ base-emitter pull-up resistor that biases the PNP transistor into saturation when the base is driven low. It eliminates the need for an external base resistor, enabling direct connection to logic outputs and reducing component count in digital switching circuits.
Can DDTA114GUA-7-F be used in linear amplifier applications?
No - this device is optimized for switching operation, not linear amplification. Its hFE is specified only at IC = -5 mA and VCE = -5 V, and its R2-only bias structure prevents stable DC operating point adjustment required for analog gain stages.
Is DDTA114GUA-7-F compatible with lead-free reflow profiles?
Yes - it features matte tin-plated leads and complies with JEDEC J-STD-020C Level 1 moisture sensitivity. Standard lead-free reflow (peak 260 °C, 60 sec max) can be applied without preconditioning or special handling.
How does the SOT-323 package affect thermal performance?
The SOT-323 package delivers compact size but has higher thermal resistance: RθJA = 625 °C/W on FR4 with recommended pad layout. For continuous 100 mA operation, ambient temperature must remain below 75 °C to keep junction temperature within the -55 °C to +150 °C limit.
DDTA114GUA-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA (ICBO)
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
DDTA114GUA-7-F FAQ
1.How can I place an order for DDTA114GUA-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA114GUA-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 DDTA114GUA-7-F reliable?
The price and inventory of DDTA114GUA-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 DDTA114GUA-7-F is usually 5 days.
3.What payment methods are accepted for DDTA114GUA-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA114GUA-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA114GUA-7-F?
DDTA114GUA-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA114GUA-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 DDTA114GUA-7-F?
For technical support, including DDTA114GUA-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA114GUA-7-F requirements.
6.How does Aetrix verify that DDTA114GUA-7-F is sourced from the original manufacturer or authorized distributors?
All DDTA114GUA-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 DDTA114GUA-7-F meets industry standards.
7.What is the process for return or replacement of DDTA114GUA-7-F?
All DDTA114GUA-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTA114GUA-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 DDTA114GUA-7-F part is unused and in its original packaging.
Return procedure for DDTA114GUA-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTA114GUA-7-F Tags
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MUN5211T1G
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