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Diodes Incorporated DDTA114GUA-7
- Part No.:
- DDTA114GUA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
DDTA114GUA-7.pdf
- Description:
- TRANS PREBIAS PNP 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:5,940
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Product details
Overview
DDTA114GUA-7 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 logic interface, level translation, and load switching circuits.
For engineers reviewing the DDTA114GUA-7 datasheet, DDTA114GUA-7 pinout, DDTA114GUA-7 application, or DDTA114GUA-7 equivalent, key selection criteria include verified R2-only bias topology, guaranteed hFE ≥30 at IC = -5 mA, VCE(sat) ≤ -0.3 V at IC/IB = 20, ESD robustness per JESD22-A114, and RoHS-compliant green molding compound.
Technical Context
This device implements a single PNP bipolar junction transistor with an integrated base-emitter pull-up resistor (R2 = 10 kΩ ±30%), eliminating external bias components in simple switching applications. It operates within -55°C to +150°C ambient range and delivers DC current gain of 30–100 at IC = -5 mA, VCE = -5 V.
The SOT-323 package supports high-density PCB layouts with JEDEC-standard thermal resistance (RθJA = 625°C/W on FR4) and moisture sensitivity level 1 compliance. Its VEB0 ≥5 V ensures reliable turn-off under reverse-biased base conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -50 V - Maximum allowable collector-emitter voltage before breakdown in common-emitter configuration |
| IC (max) | -100 mA - Continuous collector current limit defining safe switching capacity |
| PD | 200 mW - Power dissipation limit at TA = 25°C, derates linearly above 25°C |
| hFE | 30 (min) - Minimum DC current gain at IC = -5 mA, VCE = -5 V, ensuring predictable drive strength |
| VCE(sat) | -0.3 V (max) - Saturation voltage at IC = -10 mA, IB = -0.5 mA, minimizing conduction loss |
| R2 | 10 kΩ ±30% - Integrated base-emitter bias resistor enabling single-resistor switch control |
| fT | 250 MHz - Gain-bandwidth product indicating usable frequency range for small-signal amplification |
Pinout & Package
SOT-323 plastic surface-mount package with gull-wing leads; dimensions: 2.00–2.20 mm length × 1.15–1.35 mm width × 0.25–0.40 mm height; UL 94V-0 flammability rating; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current sink terminal; connects to higher potential in PNP switching configurations |
| 2 (Base) | B | Control input node tied internally to R2; accepts TTL/CMOS-compatible logic-level drive |
| 3 (Collector) | C | Current source terminal; delivers switched load current to ground-referenced loads |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R2 bias resistor | 10 kΩ ±30% enables direct logic-level drive without external base resistor |
| Green molding compound | Halogen-free, RoHS-compliant encapsulation meeting UL 94V-0 flammability standard |
| Low VCE(sat) | ≤ -0.3 V at IC/IB = 20 reduces power loss in high-duty-cycle switching |
| High hFE consistency | Min 30 at IC = -5 mA ensures stable switching threshold across temperature |
| Moisture sensitivity level 1 | Unlimited floor life at ≤30°C/60% RH, eliminating bake requirements prior to reflow |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V microcontroller outputs. IC Role / Device Role / Timing Role: PNP switch controlling LED anode connection to supply rail. Use Value: Eliminates need for discrete base resistor; VCE(sat) ≤ -0.3 V ensures >3.0 V forward bias across LED at full current. | Use Scenario: Level-shifting 1.8 V FPGA I/O to control 5 V peripheral enable lines. IC Role / Device Role / Timing Role: Active-low level translator with defined turn-on/off thresholds. Use Value: Guaranteed hFE ≥30 ensures clean logic transition even at -40°C; R2 tolerance maintains consistent drive margin. |
| Power Rail Sequencing | Industrial Sensor Interface |
Use Scenario: Enabling 12 V auxiliary supply after main 5 V rail stabilizes. IC Role / Device Role / Timing Role: Delayed-enable switch triggered by supervisor output. Use Value: -50 V VCEO rating provides margin against inductive kickback; SOT-323 footprint saves space in tight sequencing layouts. | Use Scenario: Isolating fault-prone NAMUR sensor inputs from PLC digital inputs. IC Role / Device Role / Timing Role: Current-limited interface switch protecting downstream logic. Use Value: IC = -100 mA rating handles transient overcurrents; ESD protection per JESD22-A114 prevents latch-up during field surges. |
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 |
|---|---|---|---|
| DDTA114YKA-7 | Same die, but SOT-23 package (larger footprint, higher RθJA = 430°C/W) | Preferred where board space allows and higher power handling needed | Select when thermal budget exceeds 200 mW in SOT-323 or manual assembly is required |
| NSV114GUT1G | Identical R2 = 10 kΩ, but hFE min = 20 and VCE(sat) max = -0.4 V | Acceptable for less critical switching where margin is relaxed | Choose if cost sensitivity outweighs need for guaranteed 30 hFE and lowest saturation loss |
Compared with DDTA114GUA-7, DDTA114YKA-7 offers better thermal performance at the expense of board area, while NSV114GUT1G trades gain and saturation voltage for lower unit cost-making DDTA114GUA-7 optimal for space-constrained, high-reliability digital switching.
Availability
DDTA114GUA-7 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, and industrial sensor interfaces requiring stable component supply and long-term manufacturability.
Supply support for DDTA114GUA-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.
The DDTA (R2-only) series targets compact, low-cost digital switching applications where integration of a single bias resistor simplifies layout and improves production yield-especially in portable and industrial control systems.
FAQ
What is the function of the internal R2 resistor in DDTA114GUA-7?
The internal R2 resistor (10 kΩ) connects between base and emitter, providing fixed bias to configure the PNP transistor as a saturated switch. It eliminates the need for an external base resistor when driven by logic-level signals, reducing component count and PCB area while maintaining predictable turn-on behavior across temperature.
Can DDTA114GUA-7 replace a standard PNP transistor like BC807 in existing designs?
Yes, but only if the circuit relies on base-current-driven switching and does not require variable bias adjustment. DDTA114GUA-7's fixed R2 topology replaces both the transistor and its base resistor-so redesign is needed to remove the external resistor and verify VCE(sat) and switching speed meet timing requirements.
Is DDTA114GUA-7 suitable for linear amplification applications?
No. This device is optimized for digital switching, not analog amplification. Its hFE variation across current and temperature, lack of specified linearity parameters (e.g., distortion, output impedance), and R2-integrated structure make it unsuitable for linear gain stages-use dedicated small-signal transistors like BC847 instead.
Does DDTA114GUA-7 meet automotive qualification standards?
No. While it operates from -55°C to +150°C, DDTA114GUA-7 is not AEC-Q101 qualified. For automotive applications, Diodes Incorporated offers the AEC-Q101-qualified DDTA114GQ-7 variant, which undergoes additional stress testing and lot traceability per automotive quality requirements.
DDTA114GUA-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- 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:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
DDTA114GUA-7 FAQ
1.How can I place an order for DDTA114GUA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA114GUA-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 DDTA114GUA-7 reliable?
The price and inventory of DDTA114GUA-7 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 is usually 5 days.
3.What payment methods are accepted for DDTA114GUA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA114GUA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA114GUA-7?
DDTA114GUA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA114GUA-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 DDTA114GUA-7?
For technical support, including DDTA114GUA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA114GUA-7 requirements.
6.How does Aetrix verify that DDTA114GUA-7 is sourced from the original manufacturer or authorized distributors?
All DDTA114GUA-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 DDTA114GUA-7 meets industry standards.
7.What is the process for return or replacement of DDTA114GUA-7?
All DDTA114GUA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA114GUA-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 DDTA114GUA-7 part is unused and in its original packaging.
Return procedure for DDTA114GUA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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