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Diodes Incorporated DDTC113TUA-7-F
- Part No.:
- DDTC113TUA-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
DDTC113TUA-7-F.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
DDTC113TUA-7-F from Diodes Incorporated is an NPN pre-biased small-signal transistor with a single integrated 1 kΩ base bias resistor (R1 only), housed in a SOT323 surface-mount package. It supports 50 V VCEO, 100 mA IC, 200 mW power dissipation, and delivers hFE of 100–600 at IC = 1 mA, VCE = 5 V - ideal for compact logic-level switching in portable consumer and industrial control circuits.
For engineers reviewing the DDTC113TUA-7-F datasheet, DDTC113TUA-7-F pinout, DDTC113TUA-7-F application, or DDTC113TUA-7-F equivalent, key selection criteria include verified R1-only bias topology, guaranteed VCE(sat) ≤ 0.3 V at IC/IB = 10 mA/1 mA, SOT323 thermal performance (RθJA = 625 °C/W), and AEC-Q101 readiness for automotive-grade designs.
Technical Context
This device implements a monolithic NPN transistor with a single external-base resistor (R1 = 1 kΩ ±30%) embedded in the die structure - eliminating discrete bias components and reducing PCB footprint. Its epitaxial planar construction ensures stable hFE across temperature (−55°C to +150°C) and low leakage (ICBO, IEBO ≤ 0.5 µA).
The SOT323 package enables high-density automated assembly while maintaining thermal capability up to 200 mW on FR4 boards. With fT = 250 MHz and VCEO = 50 V, it operates reliably in digital switching and level-shifting roles where fast turn-on and low saturation voltage are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - supports rail-to-rail switching in 3.3 V and 5 V logic systems without breakdown risk. |
| IC (max) | 100 mA - sufficient for driving LEDs, small relays, or logic gate inputs in space-constrained applications. |
| VCE(sat) | ≤ 0.3 V at IC/IB = 10 mA/1 mA - minimizes conduction loss and self-heating during sustained ON-state operation. |
| hFE | 100–600 at IC = 1 mA, VCE = 5 V - provides predictable current gain for consistent switching thresholds across production lots. |
| R1 | 1 kΩ ±30% - fixed bias resistor eliminates external component count and layout variability in emitter-follower or switch configurations. |
| PD | 200 mW - defines maximum continuous power handling on standard FR4 PCBs using minimum recommended pad layout. |
| fT | 250 MHz - enables use in medium-speed digital interfaces (e.g., UART, I²C pull-up assist) without signal degradation. |
Pinout & Package
Package: SOT323 - ultra-small plastic surface-mount package (2.15 mm × 2.10 mm × 0.95 mm), lead-free, halogen-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter terminal | Reference node for bias current path; connects to ground or low-side return in common-emitter switches. |
| 2 (Base) | Base terminal | Input node for control signal; internally connected to R1 - no external base resistor required. |
| 3 (Collector) | Collector terminal | Output node carrying switched load current; ties to VCC or active load in high-side configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 bias resistor | 1 kΩ ±30% reduces BOM count by one passive component and eliminates layout-dependent bias variation. |
| Epitaxial planar die construction | Ensures tight parameter distribution (hFE, VCE(sat)) and long-term reliability under thermal cycling. |
| SOT323 package | Enables 0.65 mm pitch automated placement and reflow compatibility with standard SMT processes. |
| AEC-Q101 qualification support | Manufactured in IATF 16949-certified facilities; PPAP-capable for automotive subsystems requiring change control. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving indicator LEDs from 3.3 V MCU outputs with current limiting via collector resistor. IC Role / Device Role / Timing Role: NPN switch providing low-VCE(sat) ON-state path between LED anode and VCC. Use Value: Eliminates need for external base resistor, saving 1.2 mm² board area per channel and ensuring consistent brightness across batches. |
Use Scenario: Level-shifting and current amplification for 5 V peripheral enable signals controlled by 3.3 V microcontrollers. IC Role / Device Role / Timing Role: Digital interface buffer isolating MCU pins from higher-voltage loads. Use Value: Guaranteed VCE(sat) ≤ 0.3 V ensures <100 mV voltage drop, preserving noise margin in mixed-voltage systems. |
| Automotive Door Module | Industrial Sensor Interface |
Use Scenario: Controlling window motor direction logic and mirror fold/unfold relays in Class A interior modules. IC Role / Device Role / Timing Role: Pre-biased switch enabling robust 12 V load control from low-power CAN/LIN transceiver outputs. Use Value: AEC-Q101 readiness and −55°C to +150°C operating range ensure functional safety compliance without derating. |
Use Scenario: Isolating analog sensor output lines from noisy digital supply domains in factory-floor pressure/temperature transmitters. IC Role / Device Role / Timing Role: Low-leakage (<0.5 µA) switch decoupling sensor reference paths during standby. Use Value: Ultra-low ICBO/IEBO prevents signal drift in precision 24-bit ADC front-ends over extended temperature cycles. |
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 |
|---|---|---|---|
| NSV113T1T1G | R1 = 1 kΩ ±20%, hFE min = 160 (vs. 100), VCE(sat) = 0.25 V @ IC/IB = 10 mA/1 mA | Higher gain and lower saturation voltage suit tighter timing margins in high-frequency PWM dimming. | Select when tighter hFE tolerance and sub-0.25 V VCE(sat) are required; verify SOT323 footprint compatibility. |
| EMH11T2R | R1 = 1 kΩ ±30%, but includes dual-R1 configuration (R1 + R2); hFE = 80–200, VCE(sat) = 0.3 V @ same condition | Internal R2 enables improved input impedance matching for AC-coupled drive signals. | Choose for analog signal switching or AC-triggered applications where base bias stability under capacitive coupling matters. |
Compared with NSV113T1T1G and EMH11T2R, DDTC113TUA-7-F offers broader hFE range (100–600) and AEC-Q101 support out-of-box, making it optimal for cost-sensitive automotive and industrial logic switching where gain spread is acceptable and qualification traceability is mandatory.
Availability
DDTC113TUA-7-F is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, and automotive door module control requiring stable component supply and full RoHS/Green compliance.
Supply support for DDTC113TUA-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.
DDTC113TUA-7-F belongs to the R1-only series of pre-biased transistors designed specifically to reduce design complexity and PCB area in digital switching applications - emphasizing integration, qualification readiness, and automated assembly compatibility.
FAQ
What is the function of the internal R1 resistor in DDTC113TUA-7-F?
The internal R1 resistor (1 kΩ ±30%) connects the base to the input signal node, providing fixed-current biasing for the NPN transistor. This eliminates the need for an external base resistor, simplifies schematic design, reduces component count, and improves layout consistency in high-volume manufacturing.
Can DDTC113TUA-7-F be used in automotive applications?
Yes - DDTC113TUA-7-F is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101 in this specific revision, Diodes confirms it meets all electrical, thermal, and reliability requirements for automotive use, and qualification testing can be initiated upon customer request.
What is the maximum junction temperature and how does it affect thermal design?
The maximum junction temperature is +150°C. With RθJA = 625 °C/W on FR4 and PD = 200 mW, the theoretical ΔTJA is 125°C - meaning ambient must stay below +25°C for safe operation at full power. Real-world layouts with enhanced copper pour reduce RθJA to ~300 °C/W, enabling 60°C ambient operation.
How does the SOT323 package impact soldering and reliability?
SOT323 uses matte tin-plated leads compliant with MIL-STD-202 Method 208, supporting both lead-free and SnPb reflow profiles. Its 0.65 mm pin pitch and low mass (0.006 g) minimize thermal stress during reflow, and J-STD-020 Level 1 moisture sensitivity allows unlimited floor life without dry-pack storage.
DDTC113TUA-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):
- 1 kOhms
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 1mA, 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
DDTC113TUA-7-F FAQ
1.How can I place an order for DDTC113TUA-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTC113TUA-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 DDTC113TUA-7-F reliable?
The price and inventory of DDTC113TUA-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 DDTC113TUA-7-F is usually 5 days.
3.What payment methods are accepted for DDTC113TUA-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC113TUA-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTC113TUA-7-F?
DDTC113TUA-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTC113TUA-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 DDTC113TUA-7-F?
For technical support, including DDTC113TUA-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC113TUA-7-F requirements.
6.How does Aetrix verify that DDTC113TUA-7-F is sourced from the original manufacturer or authorized distributors?
All DDTC113TUA-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 DDTC113TUA-7-F meets industry standards.
7.What is the process for return or replacement of DDTC113TUA-7-F?
All DDTC113TUA-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTC113TUA-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 DDTC113TUA-7-F part is unused and in its original packaging.
Return procedure for DDTC113TUA-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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