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Diodes Incorporated DDC143XU-7
- Part No.:
- DDC143XU-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DDC143XU-7.pdf
- Description:
- Prebias Transistor SOT363 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:5,336
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Product details
Overview
DDC143XU-7 from Diodes Incorporated is an NPN pre-biased dual small-signal transistor in SOT363 package, featuring integrated 4.7 kΩ and 10 kΩ bias resistors (R1/R2), 100 mA output current capability, 50 V collector-emitter breakdown voltage, and AEC-Q101 qualification for automotive signal switching applications such as LED driver control and logic-level translation.
For engineers reviewing the DDC143XU-7 datasheet, DDC143XU-7 pinout, DDC143XU-7 application, or DDC143XU-7 equivalent, key selection criteria include input voltage thresholds (VI(on) = 1.9 V at IO = 20 mA), output saturation voltage (VO(on) = 0.3 V), DC current gain (GI = 30 at VO = 5 V, IO = 10 mA), and thermal resistance (RθJA = 625 °C/W).
Technical Context
This dual NPN transistor integrates two independent pre-biased switch elements sharing a common emitter configuration per channel, with separate base resistors enabling direct TTL/CMOS interface without external biasing. Each channel supports up to 100 mA continuous output current and operates across –55°C to +150°C ambient temperature range.
The device uses epitaxial planar die construction and is fully RoHS-compliant, halogen- and antimony-free ("Green"), with moisture sensitivity level 1 per J-STD-020. Its SOT363 package delivers 200 mW total power dissipation (150 mW per element max) on FR-4 PCB with recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | NPN pre-biased dual transistor with R1 = 4.7 kΩ, R2 = 10 kΩ |
| Breakdown Voltage | BVCEO = 50 V - supports 24 V and 36 V automotive supply rails |
| Output Current | IO = 100 mA - drives medium-power LEDs or logic buffers directly |
| Saturation Voltage | VO(on) = 0.3 V at IO = 10 mA - minimizes conduction loss in low-voltage switching |
| Input Threshold | VI(on) = 1.9 V at VO = 0.3 V, IO = 20 mA - compatible with 3.3 V and 5 V logic families |
| DC Current Gain | GI = 30 at VO = 5 V, IO = 10 mA - ensures stable switching under load variation |
| Thermal Resistance | RθJA = 625 °C/W - requires minimal copper area for thermal management in space-constrained layouts |
Pinout & Package
SOT363 surface-mount package: 6-pin, dual flat lead, molded green plastic housing (UL 94V-0), 0.006 g weight, 1.30 mm × 2.15 mm footprint, 0.95 mm height, matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (C1) | Collector of Channel 1 | Primary switched output node for first NPN transistor |
| 2 (B1) | Base of Channel 1 | Internally connected to R1–R2 junction; accepts logic input |
| 3 (E1) | Emitter of Channel 1 | Common emitter connection for Channel 1; tied to ground or reference |
| 4 (E2) | Emitter of Channel 2 | Common emitter connection for Channel 2; electrically isolated from E1 |
| 5 (B2) | Base of Channel 2 | Internally connected to R1–R2 junction; accepts second logic input |
| 6 (C2) | Collector of Channel 2 | Primary switched output node for second NPN transistor |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent NPN switches | Two fully isolated channels in one SOT363 package reduce board area by ~40% vs discrete solutions |
| Integrated bias network | Factory-trimmed R1 = 4.7 kΩ ±30%, R2 = 10 kΩ ±30%, eliminating four external resistors per channel |
| AEC-Q101 qualified | Validated for automotive use including engine control modules and body electronics with PPAP support |
| Green RoHS compliance | No intentionally added lead, bromine <900 ppm, chlorine <900 ppm, antimony <1000 ppm |
| High-temperature operation | Rated for –55°C to +150°C junction temperature enables under-hood deployment |
Applications
| Automotive LED Lighting Control | Industrial PLC I/O Module |
|---|---|
Use Scenario: Driving position lamps and interior dome lights in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Pre-biased NPN switch translating microcontroller GPIO signals to high-current LED paths. Use Value: Eliminates external base resistors and reduces BOM count while meeting AEC-Q101 reliability requirements. | Use Scenario: Isolating and amplifying digital outputs from programmable logic controllers to solenoid drivers. IC Role / Device Role / Timing Role: Dual-channel level-shifting switch interfacing 3.3 V FPGA outputs to 24 V industrial loads. Use Value: Enables direct drive of 100 mA solenoids with <0.3 V saturation drop, minimizing heat generation in dense I/O stacks. |
| Consumer Appliance Display Backlight | Medical Diagnostic Equipment Interface |
Use Scenario: Controlling segmented LED backlights in smart home appliances with tight thermal constraints. IC Role / Device Role / Timing Role: Dual low-VCE(sat) switch managing parallel LED strings in compact white-goods displays. Use Value: Delivers 100 mA per channel with 0.3 V drop, reducing power loss and enabling fanless enclosure designs. | Use Scenario: Signal conditioning for patient-monitor sensor outputs requiring galvanic isolation and noise immunity. IC Role / Device Role / Timing Role: Dual-channel buffer isolating analog front-end signals before ADC sampling. Use Value: Provides fast turn-on (typical tON <100 ns) and low leakage (<0.5 μA off-state), preserving signal integrity in low-current biosensing paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar pre-biased dual transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDC123JU-7-F | R1 = 2.2 kΩ, R2 = 47 kΩ; higher input current (II = 0.18 mA at VI = 5 V) | Better suited for low-threshold 1.8 V logic interfaces due to lower VI(on) = 0.5 V | Select when driving from ultra-low-voltage MCUs or battery-powered sensors |
| DDC114YU-7-F | R1 = 10 kΩ, R2 = 47 kΩ; GI = 68 at VO = 5 V, IO = 10 mA | Higher DC gain supports heavier capacitive loads and longer trace routing | Prefer for noisy industrial environments where output stability under load variation is critical |
Compared with DDC143XU-7, DDC123JU-7-F offers lower input threshold but reduced output drive margin, while DDC114YU-7-F provides higher gain and better noise immunity at the cost of slightly slower switching due to larger R2.
Availability
DDC143XU-7 is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O modules, consumer appliance backlighting, and medical diagnostic equipment interface requiring stable component supply and AEC-Q101 compliance.
Supply support for DDC143XU-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, manufacturing, and sales operations across Asia, Europe, and North America.
The DDC series targets cost-sensitive, space-constrained signal-switching applications in automotive, industrial, and consumer markets, emphasizing integration, reliability, and regulatory compliance without external bias components.
FAQ
What is the maximum continuous output current per channel for DDC143XU-7?
The DDC143XU-7 supports 100 mA continuous output current per channel at TA = +25°C with derating above 25°C per the 625 °C/W thermal resistance curve. Peak output current is rated at 100 mA, and power dissipation must not exceed 150 mW per element or 200 mW total.
Does DDC143XU-7 require external base resistors?
No. DDC143XU-7 integrates factory-trimmed bias resistors (R1 = 4.7 kΩ, R2 = 10 kΩ) internally, enabling direct connection of logic-level input signals to pins 2 (B1) and 5 (B2). This eliminates the need for four external resistors typically required for discrete NPN switching configurations.
Is DDC143XU-7 qualified for automotive applications?
Yes. DDC143XU-7 is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. It meets automotive change control requirements and is specified for operation from –55°C to +150°C, making it suitable for under-hood and body electronics applications.
What is the typical input voltage threshold for turning on Channel 1 of DDC143XU-7?
The typical input voltage threshold (VI(on)) for Channel 1 is 1.9 V when VO = 0.3 V and IO = 20 mA. This value is measured with the output loaded and reflects the minimum logic-high voltage needed to achieve full saturation, ensuring compatibility with standard 3.3 V and 5 V CMOS/TTL outputs.
DDC143XU-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- 2 NPN - Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 4.7kOhms
- Resistor - Emitter Base (R2):
- 10kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA (ICBO)
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DDC143XU-7 FAQ
1.How can I place an order for DDC143XU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDC143XU-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 DDC143XU-7 reliable?
The price and inventory of DDC143XU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDC143XU-7 is usually 5 days.
3.What payment methods are accepted for DDC143XU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDC143XU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDC143XU-7?
DDC143XU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDC143XU-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 DDC143XU-7?
For technical support, including DDC143XU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDC143XU-7 requirements.
6.How does Aetrix verify that DDC143XU-7 is sourced from the original manufacturer or authorized distributors?
All DDC143XU-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 DDC143XU-7 meets industry standards.
7.What is the process for return or replacement of DDC143XU-7?
All DDC143XU-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDC143XU-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 DDC143XU-7 part is unused and in its original packaging.
Return procedure for DDC143XU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDC143XU-7 Tags
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SMUN5311DW1T1G
onsemi
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UMH9NTN
Rohm Semiconductor
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PUMH13,115
Nexperia USA Inc.
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PUMD3-QX
Nexperia USA Inc.
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PUMD2,115
Nexperia USA Inc.
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RN4987FE,LF(CT
Toshiba Semiconductor and Storage
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PUMD12,115
Nexperia USA Inc.
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PUMD9,115
Nexperia USA Inc.
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PUMH9,115
Nexperia USA Inc.
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PUMD3,115
Nexperia USA Inc.
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DCX114EU-7-F
Diodes Incorporated
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PUMD13,115
Nexperia USA Inc.
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