Diodes Incorporated DDC114TH-7
- Part No.:
- DDC114TH-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- SOT-563, SOT-666
- Datasheet:
-
DDC114TH-7.pdf
- Description:
- TRANS 2NPN PREBIAS 0.15W SOT563
- Quantity:
- Payment:

- Shipping:

Inventory:2,980
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Product details
Overview
DDC114TH-7 from Diodes Incorporated is an NPN pre-biased dual small-signal transistor in SOT-563 package, featuring integrated 10 kΩ and 47 kΩ bias resistors, 50 V VCEO, 100 mA IO, and hFE of 100–600 at IC = 1 mA. It enables compact, reliable level-shifting and digital switching in space-constrained logic interface circuits.
For engineers reviewing the DDC114TH-7 datasheet, DDC114TH-7 pinout, DDC114TH-7 application, or DDC114TH-7 equivalent, key selection criteria include input voltage thresholds (VI(OFF) = 0.5 V, VI(ON) = 3.0 V), output saturation voltage (VCE(SAT) ≤ 0.3 V), DC current gain, and SOT-563 thermal performance (RθJA = 833 °C/W).
Technical Context
This dual NPN transistor integrates two identical pre-biased elements sharing a common emitter configuration per channel, with R1 = 10 kΩ and R2 = 47 kΩ on each. It operates as a digital switch or buffer stage, optimized for 3.3 V/5 V logic interfacing where low input drive current (IL = 0.88 mA at VI = 5 V) and fast turn-on are required.
The device supports rail-to-rail input operation (−5 V to +40 V), delivers 100 mA max output current per channel, and maintains stable hFE across −55 °C to +150 °C ambient. Its fT = 250 MHz ensures adequate bandwidth for high-speed digital signal conditioning without external biasing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 3.3 V/5 V logic rails with margin. |
| IO (max) | 100 mA - Per-channel continuous output current capability; sufficient for driving LEDs, small relays, or logic inputs. |
| hFE | 100–600 - DC current gain at IC = 1 mA, VCE = 5 V; enables predictable switching with minimal base drive. |
| VCE(SAT) | ≤ 0.3 V - Low saturation voltage at IC/IB = 2.5 mA / 0.25 mA; minimizes power loss and self-heating in active switching. |
| R1/R2 | 10 kΩ / 47 kΩ - Integrated bias network eliminates external resistors; reduces PCB area and BOM count. |
| PD | 150 mW - Power dissipation limit on FR4 board; defines thermal derating above 25 °C ambient. |
| fT | 250 MHz - Gain-bandwidth product; confirms suitability for <10 MHz digital edge rates and noise-immune switching. |
Pinout & Package
Package: SOT-563 - 6-pin ultra-small surface-mount package (2.2 mm × 1.35 mm × 0.6 mm), UL 94V-0 rated, moisture sensitivity Level 1, matte tin-plated copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (Channel A) | Common emitter node for first NPN transistor; tied internally to Pin 4 for dual-emitter configuration. |
| 2 | Base (Channel A) | Input node connected to internal R1 (10 kΩ) and R2 (47 kΩ); accepts TTL/CMOS logic levels directly. |
| 3 | Collector (Channel A) | Output node for Channel A; sinks up to 100 mA when saturated. |
| 4 | Emitter (Channel B) | Common emitter node for second NPN transistor; electrically tied to Pin 1 in standard dual-emitter layout. |
| 5 | Base (Channel B) | Input node identical to Pin 2; independent control of Channel B with same bias network. |
| 6 | Collector (Channel B) | Output node for Channel B; fully isolated from Channel A except shared emitter reference. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | 10 kΩ + 47 kΩ per channel eliminates 4 external resistors, reducing layout complexity and component count. |
| Low VCE(SAT) | ≤ 0.3 V at IC/IB = 2.5 mA / 0.25 mA ensures minimal voltage drop and heat generation during conduction. |
| High hFE range | 100–600 guarantees consistent switching behavior across process and temperature variation without recalibration. |
| SOT-563 footprint | 2.2 mm × 1.35 mm outline enables use in wearables, IoT sensors, and portable medical monitors with strict size constraints. |
| Green RoHS compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) meets IPC-1752A Class 3 material declarations. |
Applications
| Industrial PLC I/O Modules | USB-C Port Power Switching |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from 24 V field-side digital inputs in modular I/O racks. IC Role / Device Role: Dual-channel level translator and current-limited switch between 3.3 V MCU and industrial 24 V logic. Use Value: Eliminates discrete resistor networks while maintaining 50 V breakdown margin and 100 mA sink capability per channel. |
Use Scenario: Controlling VCONN power delivery and CC line pull-up/down in USB-C receptacles. IC Role / Device Role: Dual NPN switch managing bidirectional CC line biasing and VCONN enable sequencing. Use Value: Single SOT-563 replaces two discrete transistors and four resistors, saving >1.5 mm² PCB area and improving signal integrity. |
| Automotive Body Control Units | Smart Home Sensor Hubs |
|
Use Scenario: Driving LED status indicators and small solenoid valves in door module ECUs operating at 12 V battery supply. IC Role / Device Role: High-reliability digital output driver with built-in current limiting and thermal robustness. Use Value: Withstands automotive load dump transients (up to 50 V) and operates across −40 °C to +125 °C junction range. |
Use Scenario: Enabling/disabling Zigbee and BLE radio power domains based on occupancy detection in battery-powered hubs. IC Role / Device Role: Low-quiescent-current enable switch for RF subsystems with precise ON/OFF threshold control. Use Value: VI(OFF) = 0.5 V and VI(ON) = 3.0 V ensure clean logic-level transitions under weak-signal sensor outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar pre-biased dual NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDC114EH-7 | R1 = 10 kΩ, R2 = 10 kΩ (vs. 10 kΩ/47 kΩ); higher input current (IL = 3.6 mA at VI = 5 V) | Better suited for low-impedance drive sources; less tolerant of weak GPIOs or high-impedance sensors | Select when driving from strong CMOS buffers and requiring faster turn-on with lower VI(ON) = 1.4 V |
| DDC143TH-7 | R1 = 4.7 kΩ, R2 = 47 kΩ; higher output current rating (IO = 100 mA) but lower VI(OFF) = 0.5 V and VI(ON) = 1.9 V | Optimized for 1.8 V/3.3 V logic families; requires tighter input voltage control | Prefer for mixed-voltage systems with 1.8 V controllers and need for higher hFE at low IC |
Compared with DDC114EH-7 and DDC143TH-7, DDC114TH-7 offers the widest input voltage window (−5 V to +40 V), balanced bias ratio for moderate-drive applications, and optimal trade-off between input sensitivity and noise immunity in 3.3 V/5 V industrial interfaces.
Availability
DDC114TH-7 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, USB-C port controllers, and automotive body control units requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for DDC114TH-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 centers across Asia and manufacturing in China, Taiwan, and Malaysia.
DDC114TH-7 belongs to the DDC series of pre-biased transistors engineered for logic-level translation and digital switching in space-constrained, high-reliability applications across industrial, computing, and consumer markets.
FAQ
What is the maximum operating temperature for DDC114TH-7?
The DDC114TH-7 has a specified operating junction temperature range of −55 °C to +150 °C. Its thermal resistance RθJA is 833 °C/W on FR4 board with recommended pad layout (AP02001), meaning derating begins above 25 °C ambient to maintain safe junction temperatures within this limit.
Can DDC114TH-7 be used in linear amplifier applications?
No-DDC114TH-7 is designed and characterized exclusively for switching operation. Its hFE specification is given at IC = 1 mA and VCE = 5 V, and no linearity, distortion, or small-signal parameters (e.g., rπ, gm) are provided in the datasheet. Use discrete transistors like BC847 or MMBT3904 for analog amplification.
Is the emitter connection common between both channels?
Yes-per the SOT-563 pinout and schematic diagram in DS30421 Rev. 5-2, Pins 1 and 4 are both emitter terminals and are internally connected as a common emitter node. This allows dual-channel operation with shared ground reference while maintaining independent base and collector control.
Does DDC114TH-7 support 1.8 V logic input levels?
Not reliably-its VI(ON) is specified as 3.0 V (min) at IO = 10 mA, and VI(OFF) is 0.5 V (max). A 1.8 V input falls within the undefined transition region and may result in partial turn-on or inconsistent switching. For 1.8 V systems, DDC143TH-7 (VI(ON) = 1.9 V) is the appropriate variant.
DDC114TH-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 NPN - Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 10kOhms
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 100µA, 1mA
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- 250MHz
- Power - Max:
- 150mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
DDC114TH-7 FAQ
1.How can I place an order for DDC114TH-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDC114TH-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 DDC114TH-7 reliable?
The price and inventory of DDC114TH-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDC114TH-7 is usually 5 days.
3.What payment methods are accepted for DDC114TH-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDC114TH-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDC114TH-7?
DDC114TH-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDC114TH-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 DDC114TH-7?
For technical support, including DDC114TH-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDC114TH-7 requirements.
6.How does Aetrix verify that DDC114TH-7 is sourced from the original manufacturer or authorized distributors?
All DDC114TH-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 DDC114TH-7 meets industry standards.
7.What is the process for return or replacement of DDC114TH-7?
All DDC114TH-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDC114TH-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 DDC114TH-7 part is unused and in its original packaging.
Return procedure for DDC114TH-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDC114TH-7 Tags

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SMUN5311DW1T1G
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PUMH9,115
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DCX114EU-7-F
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