Diodes Incorporated DDC114EU-7
- Part No.:
- DDC114EU-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DDC114EU-7.pdf
- Description:
- TRANS 2NPN PREBIAS 0.2W SOT363
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
DDC114EU-7 from Diodes Incorporated is a dual NPN pre-biased small-signal transistor in SOT-363 package, featuring integrated 10 kΩ input resistor (R1) and 10 kΩ bias resistor (R2), 50 V VCEO, 50 mA output current rating, and 0.3 V VCE(sat) at IC/IB = 10 mA / 1 mA - used for level-shifting and digital switching in compact logic interface circuits.
For engineers reviewing the DDC114EU-7 datasheet, DDC114EU-7 pinout, DDC114EU-7 application, or DDC114EU-7 equivalent, key selection criteria include verified R1/R2 tolerance (±30%), guaranteed VI(OFF) ≤ 0.5 V at 5 V supply, confirmed 250 MHz fT, and SOT-363 thermal resistance (625 °C/W) for thermally constrained PCB layouts.
Technical Context
This device integrates two independent NPN transistors with monolithic bias networks, eliminating external base resistors. Each channel supports 50 V collector-emitter breakdown and operates across –55 °C to +150 °C ambient range.
The matched R1/R2 ratio (1:1 ±20%) ensures consistent turn-on behavior under varying temperature and supply conditions, while the 0.3 V saturation voltage enables low-loss switching in 3.3 V and 5 V logic-driven loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - maximum safe collector-emitter voltage before breakdown in switching applications |
| IO (Max) | 50 mA - continuous DC output current per channel without derating at 25 °C |
| VCE(sat) | 0.3 V @ IC/IB = 10 mA/1 mA - low conduction loss enabling efficient drive of LED or gate loads |
| fT | 250 MHz - usable bandwidth for high-speed digital signal routing up to ~30 MHz toggle rates |
| R1 / R2 | 10 kΩ / 10 kΩ ±30% - factory-trimmed internal bias network eliminating two external resistors per channel |
| PD (Total) | 200 mW - total power dissipation limit across both transistors on FR4 board with recommended pad layout |
| RJA | 625 °C/W - junction-to-ambient thermal resistance defining required board copper area for thermal management |
Pinout & Package
SOT-363 (SC-88) surface-mount package: 6-pin, dual-transistor configuration with common emitter connection per channel and isolated collectors/emitters. Molded plastic body, UL 94V-0 rated, moisture sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (Channel A) | Common emitter node for first NPN transistor; tied to ground reference in typical switch configuration |
| 2 | Base (Channel A) | Input node connected internally to R1 (10 kΩ) and R2 (10 kΩ); accepts TTL/CMOS logic-level drive |
| 3 | Collector (Channel A) | Output node for Channel A; sinks up to 50 mA when saturated |
| 4 | Emitter (Channel B) | Common emitter node for second NPN transistor; electrically isolated from Pin 1 |
| 5 | Base (Channel B) | Input node for Channel B with identical internal R1/R2 network as Pin 2 |
| 6 | Collector (Channel B) | Output node for Channel B; fully independent of Pin 3 |
Key Features
| Feature | Design Value |
|---|---|
| Dual NPN with integrated bias | Eliminates four external resistors in standard inverter/switch designs, reducing BOM count and layout area |
| Matched R1/R2 ratio | 1:1 ±20% ensures consistent channel-to-channel turn-on threshold across temperature and voltage |
| Low VCE(sat) | 0.3 V at 10 mA load enables <15 mW conduction loss per channel - critical for battery-powered logic interfaces |
| High fT | 250 MHz gain-bandwidth supports clean edge integrity in 3.3 V microcontroller GPIO expansion applications |
| Extended temperature range | –55 °C to +150 °C operation validated per JEDEC JESD22-A108, suitable for automotive under-hood modules |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Driving discrete 24 V relay coils from 3.3 V MCU GPIO pins via level-shifted open-collector outputs. IC Role / Device Role: Dual-channel logic-level translator and current amplifier, replacing discrete transistor + resistor pairs. Use Value: Reduces component count by 4 per channel and maintains <0.5 V input threshold across –40 °C to +125 °C operating range. | Use Scenario: Controlling LED status indicators and small solenoids in door module assemblies with space-constrained PCBs. IC Role / Device Role: Compact dual-switch driver with built-in base biasing for direct MCU interfacing. Use Value: Enables 50 mA per channel drive at 0.3 V saturation, minimizing heat generation in sealed plastic enclosures. |
| Consumer Appliance Control Board | Medical Diagnostic Equipment Interface |
Use Scenario: Isolating and amplifying signals between microcontroller and motor driver enable lines in washing machine mainboard. IC Role / Device Role: Dual NPN switch providing galvanic separation and current gain for PWM-controlled subsystems. Use Value: Delivers 50 mA output with <1 µA leakage at VI(OFF) = 0.5 V, ensuring reliable off-state blocking during standby. | Use Scenario: Interfacing low-power sensor readout circuitry to higher-voltage analog front-end stages in portable ultrasound units. IC Role / Device Role: Precision digital switch enabling controlled activation of bias rails and calibration paths. Use Value: Guaranteed 250 MHz fT and <0.3 V VCE(sat) ensure minimal timing skew and voltage drop in critical signal path control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDC114YU-7 | Same R1/R2 values (10 kΩ/10 kΩ), but VI(ON) = 1.9 V (vs. 3.0 V for DDC114EU-7) and lower IO = 70 mA | Optimized for 1.8–3.3 V logic families; less suitable for 5 V CMOS drive | Select when interfacing with low-VCC MCUs and tighter input threshold requirements |
| DDC114TU-7 | Identical pinout and R1/R2, but higher IO = 100 mA and VCE(sat) = 0.3 V @ IC/IB = 10 mA/1 mA | Rated for heavier loads (e.g., dual relay drivers); same thermal profile but higher current capability | Choose when sustained >50 mA per channel or higher reliability margin is required |
Compared with DDC114YU-7 and DDC114TU-7, the DDC114EU-7 balances mid-range current drive (50 mA), 5 V compatibility (VI(ON) = 3.0 V), and proven thermal performance in space-limited industrial controls - making it optimal for cost-sensitive 3.3/5 V mixed-signal interface designs.
Availability
DDC114EU-7 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and consumer appliance control boards requiring stable component supply and RoHS-compliant packaging.
Supply support for DDC114EU-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 components for industrial, automotive, and computing markets.
The DDC series targets space-constrained digital interface applications, delivering pre-biased transistor functionality to reduce design complexity and improve manufacturing yield in high-volume electronics.
FAQ
Is DDC114EU-7 compatible with lead-free reflow soldering processes?
Yes. DDC114EU-7 is qualified for lead-free reflow per J-STD-020C, with peak temperature tolerance up to 260 °C. Its matte tin finish over Alloy 42 leadframe ensures reliable wetting and intermetallic formation without voiding or dewetting issues on standard FR4 PCBs.
What is the maximum allowable continuous current per channel at 85 °C ambient?
At 85 °C ambient, derating per Figure 1 reduces total power dissipation to ~125 mW. With 0.3 V VCE(sat), this supports ~41.7 mA per channel continuously (125 mW ÷ 2 channels ÷ 0.3 V ≈ 41.7 mA), assuming equal loading and no additional board copper.
Can DDC114EU-7 be used in linear amplifier configurations?
No. The device is characterized and optimized for switching operation only. Its internal bias network fixes base current, preventing stable DC bias point adjustment required for linear amplification. Use discrete transistors with external bias for analog gain stages.
Does the SOT-363 package support automated optical inspection (AOI) after placement?
Yes. The SOT-363's defined land pattern, coplanar leads, and consistent marking code (N13) enable reliable AOI detection. Diodes' recommended pad layout (AP02001) provides sufficient solder mask clearance and fiducial contrast for high-accuracy vision systems in SMT lines.
DDC114EU-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 10kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DDC114EU-7 FAQ
1.How can I place an order for DDC114EU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDC114EU-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 DDC114EU-7 reliable?
The price and inventory of DDC114EU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDC114EU-7 is usually 5 days.
3.What payment methods are accepted for DDC114EU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDC114EU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDC114EU-7?
DDC114EU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDC114EU-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 DDC114EU-7?
For technical support, including DDC114EU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDC114EU-7 requirements.
6.How does Aetrix verify that DDC114EU-7 is sourced from the original manufacturer or authorized distributors?
All DDC114EU-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 DDC114EU-7 meets industry standards.
7.What is the process for return or replacement of DDC114EU-7?
All DDC114EU-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDC114EU-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 DDC114EU-7 part is unused and in its original packaging.
Return procedure for DDC114EU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDC114EU-7 Tags

-
SMUN5311DW1T1G
onsemi

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UMH9NTN
Rohm Semiconductor

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PUMH13,115
Nexperia USA Inc.

-
PUMD3-QX
Nexperia USA Inc.

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PUMD2,115
Nexperia USA Inc.

-
RN4987FE,LF(CT
Toshiba Semiconductor and Storage

-
PUMD12,115
Nexperia USA Inc.

-
PUMD9,115
Nexperia USA Inc.

-
PUMH9,115
Nexperia USA Inc.

-
PUMD3,115
Nexperia USA Inc.

-
DCX114EU-7-F
Diodes Incorporated

-
PUMD13,115
Nexperia USA Inc.
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