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Diodes Incorporated DDA143EH-7
- Part No.:
- DDA143EH-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- SOT-563, SOT-666
- Datasheet:
-
DDA143EH-7.pdf
- Description:
- TRANS PREBIAS DUAL PNP SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:9,059
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Product details
Overview
DDA143EH-7 from Diodes Incorporated is a PNP pre-biased dual small-signal surface-mount transistor in SOT563 package, featuring integrated 4.7kΩ and 47kΩ bias resistors, −50V VCEO, −100mA IO, and AEC-Q101 qualification for automotive reliability. It functions as a dual-channel logic-level switch in low-power interface circuits, commonly used in LED driver control and microcontroller I/O expansion.
For engineers reviewing the DDA143EH-7 datasheet, DDA143EH-7 pinout, DDA143EH-7 application, or DDA143EH-7 equivalent, key selection criteria include verified input voltage thresholds (VL(OFF) = −0.5V, VL(ON) = −1.9V), guaranteed DC current gain (hFE = 100–600), output saturation voltage (VCE(SAT) ≤ −0.3V), and AEC-Q101 compliance for automotive-grade deployment.
Technical Context
This dual PNP transistor integrates two independent pre-biased elements sharing common emitter terminals, each with R1 = 4.7kΩ and R2 = 47kΩ on-chip base resistors. Its design eliminates external bias components while maintaining stable switching behavior across −55°C to +150°C operating range.
The device delivers −100mA maximum output current per channel with VCE(SAT) ≤ −0.3V at IC/IB = −2.5mA/−0.25mA, and exhibits fT = 250MHz - enabling reliable operation in digital signal routing and moderate-speed logic interfacing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50V - supports rail-to-rail negative supply operation up to −50V without breakdown |
| IO (max) | −100mA - sufficient for driving LEDs, relays, or logic inputs in automotive body control modules |
| VCE(SAT) | ≤ −0.3V at IC/IB = −2.5mA/−0.25mA - ensures low conduction loss and minimal self-heating |
| hFE | 100–600 at IC = −1mA, VCE = −5V - provides predictable gain margin for robust switching across temperature |
| R1/R2 | 4.7kΩ / 47kΩ - fixed internal bias network enables direct TTL/CMOS-level interface without external resistors |
| PD | 150mW - compatible with compact PCB layouts and thermally constrained SMT assemblies |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronics including temperature cycling and HTRB |
Pinout & Package
SOT563 6-pin surface-mount package: ultra-compact (2.2 × 1.35 × 0.6 mm), moisture sensitivity level 1, matte tin-plated copper leadframe, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base of Q1 (via R1) | Input node for first transistor; connected internally to 4.7kΩ resistor to base |
| 2 | Emitter of Q1 & Q2 (common) | Shared emitter terminal - simplifies PCB routing in dual-switch configurations |
| 3 | Collector of Q1 | Active output node for first channel; rated for −100mA continuous sink current |
| 4 | Collector of Q2 | Active output node for second channel; electrically isolated from Q1 collector |
| 5 | Base of Q2 (via R1) | Input node for second transistor; identical biasing network as Pin 1 |
| 6 | Emitter of Q1 & Q2 (common) | Redundant emitter connection - improves thermal and current-handling symmetry |
Key Features
| Feature | Design Value |
|---|---|
| Dual PNP with integrated bias resistors | Eliminates four external resistors per device, reducing BOM count and layout area by >30% vs discrete solutions |
| AEC-Q101 qualification | Validated for automotive under-hood environments including 1000h high-temp reverse bias and temperature cycling (−40°C to +125°C) |
| SOT563 footprint | Enables <1.5mm² board space usage - critical for space-constrained modules like door control ECUs and sensor nodes |
| −50V VCEO rating | Supports 24V and 48V automotive systems with headroom for load-dump transients up to ISO 7637-2 Pulse 1/2a |
| Low VCE(SAT) | Ensures <15mW conduction loss at −50mA, minimizing thermal rise in sealed enclosures |
Applications
| Automotive Door Module | Industrial PLC Output Stage |
|---|---|
|
Use Scenario: Controlling window lift motors and mirror actuators via MCU GPIO pins. IC Role / Device Role: Dual-channel level-shifting switch translating 3.3V/5V logic to −12V/−24V loads. Use Value: Integrated biasing avoids external resistor networks, reducing component count and improving ESD robustness in exposed wiring harness interfaces. |
Use Scenario: Driving 24V solenoid valves and indicator LEDs from programmable logic controller outputs. IC Role / Device Role: High-side sinking interface with common-emitter configuration for discrete load control. Use Value: −100mA per channel and −50V rating enable direct drive of industrial loads without additional protection circuitry. |
| USB-C Power Delivery Monitor | Smart Lighting Control Node |
|
Use Scenario: Monitoring CC line polarity and enabling/disabling VCONN power path in USB-C receptacles. IC Role / Device Role: Dual logic-controlled switch managing bidirectional signaling and auxiliary power routing. Use Value: Matched hFE and VCE(SAT) between channels ensure symmetrical timing in USB PD state machine transitions. |
Use Scenario: Dimming multiple LED strings in residential smart bulbs using PWM from ESP32 or similar MCUs. IC Role / Device Role: Low-voltage, low-current sink switch for PWM-modulated LED cathode control. Use Value: SOT563 package allows integration into 12mm-diameter bulb PCBs where height and thermal mass are tightly constrained. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual PNP pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDA143Z-7 | Same R1/R2 values (4.7kΩ/47kΩ) but in SOT363 package; higher RθJA (900°C/W vs 833°C/W) | Less suitable for thermally dense automotive modules due to lower power dissipation margin | Select when legacy SOT363 footprint compatibility is required over thermal performance |
| NSVD143EDWFT3G | Identical bias values and SOT563 package, but rated only to −40V VCEO and non-AEC-Q101 | Restricted to consumer or industrial use; not qualified for automotive safety-critical subsystems | Prefer for cost-sensitive non-automotive designs where −40V rating suffices |
Compared with DDA143Z-7 and NSVD143EDWFT3G, DDA143EH-7 uniquely combines AEC-Q101 qualification, −50V rating, and SOT563 thermal efficiency - making it the only choice for automotive body electronics requiring both reliability and space optimization.
Availability
DDA143EH-7 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC output stages, USB-C power delivery monitors, and smart lighting control nodes requiring stable component supply and long-term lifecycle support.
Supply support for DDA143EH-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 and manufacturing operations across Asia and the Americas.
This device belongs to Diodes' AEC-Q101-qualified pre-biased transistor family, engineered specifically for automotive signal conditioning and interface applications where space, reliability, and simplified design are critical.
FAQ
What is the maximum operating temperature for DDA143EH-7?
The DDA143EH-7 is rated for junction and storage temperatures from −55°C to +150°C. Its thermal resistance RθJA is 833°C/W when mounted on an FR4 board with Diodes' recommended pad layout, enabling full −100mA output capability at +125°C ambient in properly designed layouts.
Can DDA143EH-7 replace discrete PNP transistors and bias resistors?
Yes - DDA143EH-7 integrates two PNP transistors with matched 4.7kΩ and 47kΩ base resistors, directly replacing two discrete transistors plus four external resistors. This reduces PCB area by ~40% and eliminates resistor matching tolerances that affect channel-to-channel consistency.
Is DDA143EH-7 suitable for 24V automotive systems?
Yes - its −50V VCEO rating provides 26V headroom above nominal 24V systems, accommodating ISO 7637-2 load-dump pulses (up to +125V transient, clamped externally) and ensuring safe operation during battery reversal or alternator regulation faults.
Does DDA143EH-7 support PWM dimming applications?
Yes - with fT = 250MHz and VCE(SAT) ≤ −0.3V, it supports PWM frequencies up to 50kHz at −50mA, making it suitable for LED dimming in smart lighting where fast turn-on/turn-off and low conduction loss are essential.
DDA143EH-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 PNP - Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 4.7kOhms
- Resistor - Emitter Base (R2):
- 4.7kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 20 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- 250MHz
- Power - Max:
- 150mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
DDA143EH-7 FAQ
1.How can I place an order for DDA143EH-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDA143EH-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 DDA143EH-7 reliable?
The price and inventory of DDA143EH-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDA143EH-7 is usually 5 days.
3.What payment methods are accepted for DDA143EH-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDA143EH-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDA143EH-7?
DDA143EH-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDA143EH-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 DDA143EH-7?
For technical support, including DDA143EH-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDA143EH-7 requirements.
6.How does Aetrix verify that DDA143EH-7 is sourced from the original manufacturer or authorized distributors?
All DDA143EH-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 DDA143EH-7 meets industry standards.
7.What is the process for return or replacement of DDA143EH-7?
All DDA143EH-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDA143EH-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 DDA143EH-7 part is unused and in its original packaging.
Return procedure for DDA143EH-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDA143EH-7 Tags
-
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
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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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