Diodes Incorporated DDC114YH-7
- Part No.:
- DDC114YH-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- SOT-563, SOT-666
- Datasheet:
-
DDC114YH-7.pdf
- Description:
- TRANS 2NPN PREBIAS 0.15W SOT563
- Quantity:
- Payment:

- Shipping:

Inventory:4,206
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Product details
Overview
DDC114YH-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, 70 mA IO, and 150 mW PD. It operates as a logic-level interface switch in compact digital I/O buffering and level translation circuits.
For engineers reviewing the DDC114YH-7 datasheet, DDC114YH-7 pinout, DDC114YH-7 application, or DDC114YH-7 equivalent, key selection criteria include input threshold (VIN(on) = 1.9 V @ IO = 1 mA), output saturation voltage (VCE(sat) ≤ 0.3 V), DC current gain (GI = 68), thermal resistance (RθJA = 833 °C/W), and RoHS/Green compliance status.
Technical Context
This dual NPN transistor integrates two identical pre-biased elements sharing common emitter connections, each with R1 = 10 kΩ and R2 = 47 kΩ on-chip base biasing. It eliminates external resistor networks for digital switching applications requiring fast turn-on/turn-off at 5 V logic levels.
The device uses epitaxial planar die construction, supports −55 °C to +150 °C operation, and delivers VCE(sat) ≤ 0.3 V at IC/IB = 5 mA / 0.25 mA - enabling low-loss signal routing in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - maximum collector-emitter voltage before breakdown; supports 5 V and 3.3 V rail interfacing with margin. |
| IO | 70 mA - continuous output current per channel; sufficient for driving LED indicators or small logic loads. |
| VIN(on) | 1.9 V @ IO = 1 mA - guaranteed turn-on threshold at standard logic-high levels; compatible with TTL and CMOS outputs. |
| VCE(sat) | ≤ 0.3 V @ IC/IB = 5 mA / 0.25 mA - ensures minimal voltage drop and power loss during conduction. |
| PD | 150 mW - total package power dissipation; defines thermal derating limit on FR4 boards with recommended pad layout. |
| RθJA | 833 °C/W - junction-to-ambient thermal resistance; requires careful copper area planning for sustained 70 mA operation. |
| GI | 68 - DC current gain at VO = 5 V, IO = 10 mA; determines required drive current for reliable saturation. |
Pinout & Package
Package: SOT-563 - ultra-compact 6-pin surface-mount plastic package (2.2 mm × 1.35 mm × 0.6 mm), UL 94V-0 rated, moisture sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base of Transistor 1 | Connected internally to R1 (10 kΩ) and R2 (47 kΩ); accepts logic input for channel 1. |
| 2 | Emitter of Transistor 1 | Common emitter node shared with Pin 5; return path for both transistors' output current. |
| 3 | Collector of Transistor 1 | Active output node for channel 1; sinks up to 70 mA when saturated. |
| 4 | Collector of Transistor 2 | Active output node for channel 2; electrically independent but thermally coupled to Pin 3. |
| 5 | Emitter of Transistor 2 | Shared emitter with Pin 2; enables dual-channel operation with single ground reference. |
| 6 | Base of Transistor 2 | Connected internally to R1 (10 kΩ) and R2 (47 kΩ); accepts logic input for channel 2. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | On-die R1 = 10 kΩ, R2 = 47 kΩ per channel - eliminates four external resistors and saves >1.5 mm² PCB area. |
| Dual NPN topology | Two independent switching elements sharing emitter - enables compact dual-buffer or push-pull driver configurations. |
| Green & RoHS-compliant | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); meets EU Directive 2011/65/EU without lead substitution compromises. |
| SOT-563 footprint | 0.65 mm pitch, 2.2 mm × 1.35 mm body - compatible with high-density automated placement and reflow profiles. |
Applications
| LED Indicator Driver | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving multiple status LEDs from low-current MCU pins. IC Role / Device Role / Timing Role: Dual-channel active-low switch translating 3.3 V GPIO into 20 mA LED sink paths. Use Value: Eliminates discrete resistor-transistor pairs; reduces BOM count by 4 components per channel while maintaining VCE(sat) ≤ 0.3 V. |
Use Scenario: Extending limited GPIO count on ARM Cortex-M0+ microcontrollers. IC Role / Device Role / Timing Role: Logic-level buffer providing additional open-collector outputs for I²C pull-up control or interrupt aggregation. Use Value: Enables 2 extra programmable outputs with guaranteed VIN(on) ≤ 1.9 V and IO ≥ 70 mA per channel. |
| Level Translation Interface | Compact Load Switch |
Use Scenario: Interfacing 5 V legacy peripherals with 3.3 V SoC I/O banks. IC Role / Device Role / Timing Role: Bidirectional voltage translator using saturated NPN switching with defined input thresholds. Use Value: Supports clean 5 V ↔ 3.3 V translation without external level-shifter ICs; maintains propagation delay < 20 ns. |
Use Scenario: Power gating auxiliary sensors or communication modules in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Low-leakage (IO(off) ≤ 0.5 µA) load switch controlled directly by MCU GPIO. Use Value: Achieves <1 µA standby current per channel while delivering 70 mA on-demand; avoids quiescent current penalty of PMIC solutions. |
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 | Same SOT-563 package, identical R1/R2 values (10 kΩ/10 kΩ), but lower IO = 50 mA and higher VIN(on) = 3.0 V. | Less suitable for 3.3 V logic drive; better for 5 V-only systems where higher input threshold improves noise immunity. | Select DDC114EH-7 only if system VCC ≥ 4.5 V and output current demand ≤ 50 mA per channel. |
| DDC143EH-7 | Same package, R1/R2 = 4.7 kΩ/4.7 kΩ, higher IO = 100 mA, but VIN(on) = 1.1 V and GI = 20 - lower gain, faster switching. | Better for high-speed digital buffering (e.g., clock distribution), but less tolerant of weak drive sources. | Choose DDC143EH-7 when driving capacitive loads >20 pF or requiring tON/tOFF < 15 ns at 5 V. |
Compared with DDC114EH-7 and DDC143EH-7, DDC114YH-7 uniquely balances 1.9 V logic compatibility, 70 mA drive strength, and 68× DC gain - making it optimal for mixed-voltage embedded interfaces where both noise margin and current capability matter.
Availability
DDC114YH-7 is available at Aetrix Electronics and suitable for LED indicator driver, microcontroller GPIO expander, and level translation interface applications requiring stable component supply and long-term industrial availability.
Supply support for DDC114YH-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, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.
The DDC series targets space-constrained digital interface applications, delivering pre-biased transistor functionality with reduced bill-of-materials and simplified layout - specifically engineered for embedded control and signal conditioning.
FAQ
What is the maximum operating temperature for DDC114YH-7?
The DDC114YH-7 is rated for junction and storage temperatures from −55 °C to +150 °C. Its thermal resistance (RθJA = 833 °C/W) means that at 70 mA continuous output and 150 mW dissipation, ambient temperature must remain below +85 °C on standard FR4 with AP02001-recommended pad layout.
Can DDC114YH-7 replace a discrete transistor + two resistors?
Yes - DDC114YH-7 integrates two NPN transistors with matched 10 kΩ and 47 kΩ base bias resistors per channel. It replaces four passives and two transistors in dual-buffer designs, reducing PCB area by >1.5 mm² and eliminating resistor tolerance stacking errors in gain setting.
Is DDC114YH-7 suitable for 3.3 V logic systems?
Yes - its VIN(on) is specified at 1.9 V (max) with IO = 1 mA, ensuring reliable turn-on from 3.3 V CMOS outputs. The 68× DC gain guarantees saturation even with weak drive currents down to 0.25 mA, meeting typical MCU GPIO sourcing limits.
Does DDC114YH-7 have any special handling requirements?
No special ESD handling beyond standard J-STD-001 practices is required. It is moisture sensitivity Level 1 (MSL-1), meaning unlimited floor life at ≤30 °C/60% RH. Reflow profile follows IPC/JEDEC J-STD-020, peak temperature ≤ 260 °C for ≤ 30 seconds.
DDC114YH-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):
- 47kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 68 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250MHz
- Power - Max:
- 150mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
DDC114YH-7 FAQ
1.How can I place an order for DDC114YH-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDC114YH-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 DDC114YH-7 reliable?
The price and inventory of DDC114YH-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDC114YH-7 is usually 5 days.
3.What payment methods are accepted for DDC114YH-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDC114YH-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDC114YH-7?
DDC114YH-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDC114YH-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 DDC114YH-7?
For technical support, including DDC114YH-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDC114YH-7 requirements.
6.How does Aetrix verify that DDC114YH-7 is sourced from the original manufacturer or authorized distributors?
All DDC114YH-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 DDC114YH-7 meets industry standards.
7.What is the process for return or replacement of DDC114YH-7?
All DDC114YH-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDC114YH-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 DDC114YH-7 part is unused and in its original packaging.
Return procedure for DDC114YH-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDC114YH-7 Tags

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