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Diodes Incorporated DDTC114WUA-7-F
- Part No.:
- DDTC114WUA-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
DDTC114WUA-7-F.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,737
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Product details
Overview
DDTC114WUA-7-F from Diodes Incorporated is a 50V NPN pre-biased transistor in SOT323 package with integrated R1 = 10kΩ and R2 = 4.7kΩ bias resistors, designed for digital switching applications requiring low-input-current drive and guaranteed saturation at IC = 10mA. It delivers VCE(sat) ≤ 0.3V, DC current gain (hFE) = 24 at 5V/10mA, and supports automotive-grade reliability per AEC-Q101 qualification.
For engineers reviewing the DDTC114WUA-7-F datasheet, DDTC114WUA-7-F pinout, DDTC114WUA-7-F application, or DDTC114WUA-7-F equivalent, key selection criteria include input voltage threshold (VIN(on) = 3.0V @ IC = 2mA), output leakage (IC(off) ≤ 0.5μA), thermal resistance (RθJA = 625°C/W), and RoHS-compliant "Green" packaging.
Technical Context
This device integrates an NPN transistor with two non-matching on-chip resistors (R1 = 10kΩ, R2 = 4.7kΩ) to provide fixed-base biasing, eliminating external components for logic-level interfacing. Its epitaxial planar die construction ensures stable gain and low saturation voltage under defined load conditions.
The SOT323 package enables high-density PCB layouts and automated assembly, while its 200mW power dissipation rating and -55°C to +150°C operating range support industrial and automotive environments where thermal stability and space constraints are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50V - Maximum collector-emitter voltage before breakdown; defines safe operating voltage in switching circuits. |
| IC(max) | 100mA - Absolute maximum continuous collector current; sets upper limit for load-driving capability. |
| VIN(on) | 3.0V @ IC = 2mA - Input voltage required to fully saturate the transistor; ensures compatibility with 3.3V logic families. |
| hFE | 24 @ VCE = 5V, IC = 10mA - DC current gain; determines base drive efficiency and switching speed in digital interface designs. |
| RθJA | 625°C/W - Junction-to-ambient thermal resistance on FR4 board; informs heatsinking requirements for sustained 200mW operation. |
| PD | 200mW - Maximum power dissipation; constrains duty cycle and ambient temperature in compact enclosures. |
Pinout & Package
Package: SOT323 - ultra-small surface-mount plastic package (2.15mm × 2.10mm × 0.95mm), moisture sensitivity level 1, matte tin-plated leads, UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter terminal of internal NPN transistor | Reference node for current return path; connects directly to ground or low-side load return. |
| 2 (Base) | Input node connected to R1–R2 junction | Accepts logic-level input; internal resistor divider sets bias point for guaranteed saturation. |
| 3 (Collector) | Output node of internal NPN transistor | Drives loads (e.g., LEDs, relays, gate drivers); sinks current when active. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in R1/R2 bias network | R1 = 10kΩ ±30%, R2 = 4.7kΩ ±30%; eliminates external resistors and reduces BOM count in logic interface circuits. |
| Guaranteed saturation | VCE(sat) ≤ 0.3V @ IC = 10mA; minimizes conduction loss and heat generation in high-duty-cycle switching. |
| Low input current requirement | IIN = 0.88mA @ VIN = 5V; reduces loading on microcontroller GPIOs and extends battery life in portable systems. |
| AEC-Q101 qualified | Qualified for automotive applications; supports PPAP and manufactured in IATF 16949 certified facilities. |
| Halogen- and antimony-free "Green" | <900ppm Br, <900ppm Cl, <1000ppm Sb; meets global environmental compliance mandates without performance trade-offs. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving indicator LEDs from 3.3V MCU outputs with minimal external components. IC Role / Device Role / Timing Role: Low-side switch that translates logic-high signal into LED current sink. Use Value: Eliminates need for discrete base resistor; ensures reliable LED turn-on at 3.0V input threshold and maintains <0.3V drop across collector-emitter. |
Use Scenario: Extending limited GPIO count to control multiple peripheral enable lines. IC Role / Device Role / Timing Role: Digital buffer/level shifter enabling one MCU pin to activate multiple downstream devices. Use Value: 0.88mA input current allows direct connection to weak-drive GPIOs; 100mA output supports parallel enable signals without fanout degradation. |
| Automotive Door Module | Industrial Sensor Interface |
|
Use Scenario: Controlling window lift motor relays and interior lighting in door control units. IC Role / Device Role / Timing Role: Robust, AEC-Q101-compliant switch for 12V load control with ESD protection. Use Value: -55°C to +150°C operating range and 50V VCEO withstand capability ensure reliability in under-hood and door cavity environments. |
Use Scenario: Isolating and conditioning analog sensor enable signals in PLC I/O modules. IC Role / Device Role / Timing Role: Signal-level translator between isolated digital control domain and sensor supply domain. Use Value: 0.5μA output leakage prevents false triggering of sensitive analog sensors; 625°C/W thermal resistance supports dense PCB layouts without derating. |
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 |
|---|---|---|---|
| DDTC123YUA-7-F | R1 = 2.2kΩ, R2 = 10kΩ; higher input current (3.8mA @ 5V), lower VIN(on) (3.0V @ 20mA) | Better suited for 5V logic systems needing faster turn-on; less efficient for 3.3V GPIO drive | Select when driving heavier loads (>20mA) with 5V controllers and lower input impedance is acceptable. |
| DDTC143XUA-7-F | R1 = 4.7kΩ, R2 = 10kΩ; VIN(on) = 2.5V @ 20mA, hFE = 30 @ 10mA | Optimized for medium-speed switching with balanced input/output trade-offs | Prefer for mixed-voltage systems (3.3V/5V) where moderate gain and mid-range input threshold improve noise margin. |
Compared with DDTC123YUA-7-F and DDTC143XUA-7-F, the DDTC114WUA-7-F offers the lowest input current draw (0.88mA) and highest R1/R2 ratio (≈2.13), making it optimal for battery-powered 3.3V microcontroller interfaces where drive strength is secondary to power efficiency.
Availability
DDTC114WUA-7-F is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, and automotive door module designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for DDTC114WUA-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, specializing in high-reliability, energy-efficient components for automotive, industrial, and consumer markets.
This part belongs to the DDTC (R1≠R2 Series) UA family of pre-biased transistors, engineered specifically for simplified digital switching in space-constrained, low-power applications where consistent saturation and reduced external component count are critical design goals.
FAQ
What is the maximum operating temperature for DDTC114WUA-7-F?
The DDTC114WUA-7-F has an operating junction temperature range of -55°C to +150°C, validated per AEC-Q101 stress testing. Its 625°C/W thermal resistance assumes mounting on FR4 with minimum recommended pad layout; actual max ambient temperature depends on power dissipation and board thermal design.
Is DDTC114WUA-7-F pin-compatible with standard SOT-23 transistors?
No - DDTC114WUA-7-F uses the SOT323 package (2.15mm × 2.10mm), which is smaller than SOT-23 (2.9mm × 1.3mm) and has different pin spacing (0.65mm pitch vs. 0.95mm). Pin assignment (Emitter-Base-Collector) matches SOT-23 orientation but physical footprint and soldering profile differ significantly.
Does this transistor require external pull-down resistors?
No - the internal R2 resistor (4.7kΩ) provides base-to-emitter pull-down, ensuring the transistor remains off when the input is floating or high-impedance. This eliminates the need for external pull-down components in most digital interface applications.
Can DDTC114WUA-7-F drive a 20mA LED directly?
Yes - its absolute maximum IC is 100mA and typical IC capability is 10mA at guaranteed saturation (VCE(sat) ≤ 0.3V). For 20mA operation, verify VCE(sat) remains ≤ 0.4V using the datasheet's Figure 2 curve and derate power accordingly within the 200mW limit.
DDTC114WUA-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:
- 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):
- 4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 24 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
DDTC114WUA-7-F FAQ
1.How can I place an order for DDTC114WUA-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTC114WUA-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 DDTC114WUA-7-F reliable?
The price and inventory of DDTC114WUA-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 DDTC114WUA-7-F is usually 5 days.
3.What payment methods are accepted for DDTC114WUA-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC114WUA-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTC114WUA-7-F?
DDTC114WUA-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTC114WUA-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 DDTC114WUA-7-F?
For technical support, including DDTC114WUA-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC114WUA-7-F requirements.
6.How does Aetrix verify that DDTC114WUA-7-F is sourced from the original manufacturer or authorized distributors?
All DDTC114WUA-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 DDTC114WUA-7-F meets industry standards.
7.What is the process for return or replacement of DDTC114WUA-7-F?
All DDTC114WUA-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTC114WUA-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 DDTC114WUA-7-F part is unused and in its original packaging.
Return procedure for DDTC114WUA-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTC114WUA-7-F Tags
-
MUN5211T1G
onsemi
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DTC043ZEBTL
Rohm Semiconductor
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DTC114EKAT146
Rohm Semiconductor
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DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
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PDTC114ET,215
Nexperia USA Inc.
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PDTC143ZT,215
Nexperia USA Inc.
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PDTC143ET,215
Nexperia USA Inc.
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PDTC143XT,215
Nexperia USA Inc.
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MMUN2211LT1G
onsemi
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PDTC144ET,215
Nexperia USA Inc.
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PDTC124ET,215
Nexperia USA Inc.
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