My Inquiry
My Account
Diodes Incorporated DDTC113TCA-7-F
- Part No.:
- DDTC113TCA-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDTC113TCA-7-F.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,371
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDTC113TCA-7-F from Diodes Incorporated is an NPN pre-biased transistor in SOT23 package with a single built-in 1 kΩ bias resistor (R1), VCEO = 50 V, IC(max) = 100 mA, VCE(sat) ≤ 0.3 V at IC/IB = 10 mA/1 mA, and hFE = 100–250. It serves as a compact, lead-free switching element in low-power digital interface and level-shifting circuits.
For engineers reviewing the DDTC113TCA-7-F datasheet, DDTC113TCA-7-F pinout, DDTC113TCA-7-F application, or DDTC113TCA-7-F equivalent, key selection factors include its R1-only bias topology, SOT23 thermal performance (RθJA = 625 °C/W), guaranteed hFE range, automotive-grade variants (e.g., DDTC143TCAQ), and compatibility with FR4 PCB layouts per Diodes' recommended pad dimensions.
Technical Context
This device implements a monolithic NPN bipolar junction transistor with an integrated base-emitter pull-up resistor (R1 = 1 kΩ ±30%), eliminating external bias components for simple on/off control. Its epitaxial planar die construction ensures stable gain and low leakage across –55 °C to +150 °C operating range.
Designed for discrete logic-level switching, it operates with VCE up to 50 V and supports DC current transfer ratios from 100 to 250 at IC = 1 mA and VCE = 5 V. The SOT23 package enables high-density placement while maintaining 200 mW power dissipation under standard FR4 mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; defines safe switching window in 3.3 V/5 V logic-driven loads. |
| IC(max) | 100 mA - Continuous collector current limit; suitable for driving LEDs, small relays, or gate inputs without external current limiting. |
| VCE(sat) | ≤ 0.3 V at IC/IB = 10 mA/1 mA - Low saturation voltage minimizes power loss and self-heating in active-switching applications. |
| hFE | 100–250 at IC = 1 mA, VCE = 5 V - Guaranteed DC current gain range ensures predictable base drive requirements across production lots. |
| R1 | 1 kΩ ±30% - Integrated base resistor sets fixed bias point; eliminates need for external resistor and reduces BOM count. |
| PD | 200 mW - Power dissipation rating on FR4 board with minimum pad layout; constrains maximum continuous IC × VCE product. |
| TJ | –55 °C to +150 °C - Junction temperature range confirms suitability for industrial and extended-temperature environments. |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), UL 94V-0 rated molding compound, and approximate weight of 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitting terminal of NPN transistor | Connected to ground or low-side return path; forms current sink node in common-emitter configuration. |
| 2 (Base) | Control input with internal R1 connection | Input node tied internally to 1 kΩ resistor; accepts TTL/CMOS logic levels directly without external bias network. |
| 3 (Collector) | Current output terminal | Drives load between VCC and collector; supports up to 50 V and 100 mA in switched mode. |
Key Features
| Feature | Design Value |
|---|---|
| R1-only bias topology | Single integrated 1 kΩ base resistor simplifies PCB layout and reduces component count versus dual-resistor pre-biased transistors. |
| Lead-free & RoHS 3 compliant | Fully compliant with EU Directive 2015/863/EU; no intentionally added lead, halogen, or antimony compounds (<900 ppm Br/Cl, <1000 ppm Sb). |
| SOT23 thermal performance | RθJA = 625 °C/W on FR4 board enables reliable operation at 200 mW dissipation without heatsinking in ambient temperatures up to +85 °C. |
| Wide operating temperature | Rated for –55 °C to +150 °C junction operation, supporting deployment in industrial controls, automotive body electronics, and outdoor equipment. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving indicator LEDs from 3.3 V or 5 V microcontroller outputs with current limiting via VCE(sat) and load resistor. IC Role / Device Role / Timing Role: NPN switch providing low-loss current sinking path for LED anode-to-VCC configurations. Use Value: Eliminates need for external base resistor; VCE(sat) ≤ 0.3 V ensures >90% efficiency in typical 20 mA LED drive. |
Use Scenario: Extending limited GPIO count by enabling/disabling peripheral enable lines or reset signals. IC Role / Device Role / Timing Role: Level-shifting buffer that translates MCU logic states to higher-voltage or higher-current control signals. Use Value: Guaranteed hFE ≥ 100 ensures full saturation with ≤1 mA base drive, reducing MCU pin loading. |
| Low-Power Relay Driver | Logic-Level Translation Interface |
Use Scenario: Switching 5 V or 12 V relay coils in battery-powered sensors or IoT edge nodes. IC Role / Device Role / Timing Role: High-gain saturated switch delivering up to 100 mA coil current with minimal MCU resource usage. Use Value: 50 V VCEO rating safely handles relay coil flyback transients without snubber diodes in many cases. |
Use Scenario: Interfacing 1.8 V FPGA I/O banks to 3.3 V or 5 V peripherals requiring clean signal inversion. IC Role / Device Role / Timing Role: Inverting level translator with fast turn-on/turn-off due to low COB and fT = 250 MHz. Use Value: R1-only topology avoids timing skew from external resistor parasitics, improving signal integrity at ≤10 MHz rates. |
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 |
|---|---|---|---|
| DDTC123TCA-7-F | R1 = 2.2 kΩ (vs. 1 kΩ); hFE min = 600 at IC = 5 mA | Higher base resistance reduces base current draw but requires higher input voltage for full saturation | Select when driving from weaker sources (e.g., open-drain I²C lines) or where lower base current improves system power budget |
| DDTC143TCA-7-F | R1 = 4.7 kΩ; hFE min = 630 at IC = 2.5 mA | Optimized for lower IC (≤2.5 mA) switching with tighter hFE distribution | Prefer for ultra-low-power sensor wake-up circuits or battery-critical designs needing <1 μA standby leakage |
Compared with DDTC123TCA-7-F and DDTC143TCA-7-F, the DDTC113TCA-7-F provides the lowest R1 value and highest base drive capability, making it optimal for robust saturation under marginal input drive conditions-especially in noisy industrial environments or legacy 5 V logic systems.
Availability
DDTC113TCA-7-F is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, and low-power relay control requiring stable component supply and long-term industrial availability.
Supply support for DDTC113TCA-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 industrial, computing, consumer, and automotive markets.
This part belongs to the DDTC (R1-only series) CA family of pre-biased NPN transistors, designed specifically to reduce design complexity and bill-of-materials cost in digital interface and switching applications.
FAQ
What is the function of the built-in resistor in DDTC113TCA-7-F?
The integrated 1 kΩ resistor connects between the base and emitter terminals (R1-only configuration), providing fixed forward bias to ensure reliable transistor saturation when driven by standard logic-level voltages. This eliminates the need for an external base resistor, reducing PCB area and assembly steps while maintaining consistent switching behavior across temperature and process variation.
Can DDTC113TCA-7-F replace a standard NPN transistor like 2N3904?
Yes, but only in saturated-switch applications where the 1 kΩ R1 bias is acceptable. Unlike the 2N3904, it cannot be used in linear amplifier or variable-bias configurations due to the fixed internal resistor. For switching use cases with 3.3 V/5 V logic drive, it offers faster turn-on, reduced component count, and guaranteed hFE performance without external bias design.
Is DDTC113TCA-7-F qualified for automotive applications?
No-DDTC113TCA-7-F is not AEC-Q101 qualified. However, its automotive-grade sibling DDTC143TCAQ-7-F is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. Use DDTC113TCA-7-F for industrial, commercial, or consumer applications where automotive qualification is not required.
What is the maximum safe operating frequency for switching with DDTC113TCA-7-F?
With a gain-bandwidth product (fT) of 250 MHz, the device supports clean switching up to approximately 10–20 MHz in saturated mode, depending on load capacitance and drive strength. For reliable digital interface use (e.g., GPIO expansion), it performs well at frequencies ≤5 MHz; higher speeds require verification of rise/fall times against specific load conditions using the VCE(sat) and hFE data.
DDTC113TCA-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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-23-3
DDTC113TCA-7-F FAQ
1.How can I place an order for DDTC113TCA-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTC113TCA-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 DDTC113TCA-7-F reliable?
The price and inventory of DDTC113TCA-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 DDTC113TCA-7-F is usually 5 days.
3.What payment methods are accepted for DDTC113TCA-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC113TCA-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTC113TCA-7-F?
DDTC113TCA-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTC113TCA-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 DDTC113TCA-7-F?
For technical support, including DDTC113TCA-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC113TCA-7-F requirements.
6.How does Aetrix verify that DDTC113TCA-7-F is sourced from the original manufacturer or authorized distributors?
All DDTC113TCA-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 DDTC113TCA-7-F meets industry standards.
7.What is the process for return or replacement of DDTC113TCA-7-F?
All DDTC113TCA-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTC113TCA-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 DDTC113TCA-7-F part is unused and in its original packaging.
Return procedure for DDTC113TCA-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTC113TCA-7-F Tags
-
MUN5211T1G
onsemi
-
DTC043ZEBTL
Rohm Semiconductor
-
DTC114EKAT146
Rohm Semiconductor
-
DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
-
PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
-
PDTC143XT,215
Nexperia USA Inc.
-
MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
