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Diodes Incorporated DDTA144GE-7
- Part No.:
- DDTA144GE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
DDTA144GE-7.pdf
- Description:
- TRANS PREBIAS PNP 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:5,968
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Product details
Overview
DDTA144GE-7 from Diodes Incorporated is a PNP pre-biased small-signal transistor in SOT523 package with built-in 47 kΩ bias resistor (R2 only), −50 V VCEO, −100 mA IC, and hFE = 68 at −5 mA/−5 V, designed for compact load switching and level-shifting in automotive body electronics.
For engineers reviewing the DDTA144GE-7 datasheet, DDTA144GE-7 pinout, DDTA144GE-7 application, or DDTA144GE-7 equivalent, key selection criteria include R2-only bias topology, AEC-Q101 qualification, SOT523 thermal resistance (833 °C/W), and guaranteed hFE minimum of 68 under standard test conditions.
Technical Context
This device implements a single-PNP transistor with integrated base-emitter shunt resistor (R2 = 47 kΩ ±30%), eliminating external bias components for simplified high-side switch designs. It operates within −55 °C to +150 °C and meets AEC-Q101 stress testing for automotive reliability.
The R2-only configuration provides fixed base current limiting without an R1 resistor, enabling predictable saturation at −10 mA IC with −0.5 mA IB, yielding VCE(sat) ≤ −0.3 V. Its fT of 250 MHz supports moderate-speed digital switching up to ~10 MHz edge rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive supply rails with margin. |
| IC (max) | −100 mA - Continuous collector current rating; supports LED drivers and relay coils up to ~100 mA loads. |
| R2 | 47 kΩ ±30% - Integrated base-emitter resistor sets fixed bias current; eliminates need for external R1/R2 network. |
| hFE | 68 (min) at −5 mA/−5 V - Guaranteed DC current gain ensures reliable saturation under defined drive conditions. |
| VCE(sat) | ≤ −0.3 V at −10 mA/−0.5 mA - Low saturation voltage minimizes power loss in switching applications. |
| PD | 150 mW - Power dissipation limit on FR4 board; requires thermal derating above 25 °C ambient per Fig. 1. |
Pinout & Package
SOT523 surface-mount plastic package (1.60 mm × 1.60 mm × 0.75 mm), UL 94V-0 rated, moisture sensitivity Level 1, matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current source terminal | Connected to higher potential rail; defines reference for R2 bias path. |
| Base (B) | Control input node | Internally connected only to R2; no external R1-simplifies PCB layout for high-side switches. |
| Collector (C) | Current sink terminal | Drives load to ground; polarity matches PNP logic-level switching requirements. |
Key Features
| Feature | Design Value |
|---|---|
| R2-only bias topology | Single internal 47 kΩ resistor between base and emitter eliminates external bias network and reduces component count by one. |
| AEC-Q101 qualification | Validated for automotive under-hood and body control modules requiring extended temperature operation and reliability. |
| SOT523 footprint | 0.002 g weight and 1.6 mm × 1.6 mm outline enable ultra-compact placement in space-constrained ECUs and lighting modules. |
| Green compound construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets global environmental compliance mandates. |
Applications
| Automotive Door Module Switching | LED Indicator Driver |
|---|---|
Use Scenario: Controlling window lock/unlock solenoids and mirror adjustment motors in door control units. IC Role / Device Role / Timing Role: High-side PNP switch enabling 12 V/24 V load activation with logic-level microcontroller output. Use Value: R2-only bias ensures consistent turn-on behavior across temperature without calibration; −50 V rating accommodates load dump transients. | Use Scenario: Driving status LEDs in instrument clusters and center consoles with low-current, high-reliability switching. IC Role / Device Role / Timing Role: Constant-current sink for discrete LEDs using saturated PNP configuration. Use Value: VCE(sat) ≤ −0.3 V limits power loss to <3 mW at 10 mA, reducing thermal load in sealed enclosures. |
| Body Control Unit Input Conditioning | Smart Sensor Interface Protection |
Use Scenario: Level-shifting and debouncing of mechanical switch inputs (e.g., trunk release, hood latch) into MCU GPIOs. IC Role / Device Role / Timing Role: Inverting buffer with hysteresis provided by R2 feedback path. Use Value: Guaranteed hFE ≥ 68 ensures clean logic transitions even at −40 °C, supporting cold-cranking operation. | Use Scenario: Isolating analog sensor outputs (e.g., temperature, humidity) from ESD-prone harness connectors. IC Role / Device Role / Timing Role: Transient-suppressing clamp stage using VEBO = 5 V and low leakage IEBO ≤ −65 µA. Use Value: −65 µA max emitter cutoff current prevents false triggering in high-impedance sensor bias networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDTA144W-7 | SOT323 package; same R2 = 47 kΩ, but larger footprint and higher RθJA = 430 °C/W. | Better thermal performance at higher currents; less suitable for ultra-dense layouts. | Select when board space allows and >100 mA peak current is required. |
| NSV14001MT1G | ON Semiconductor part; R2 = 47 kΩ, but hFE min = 60 (vs. 68) and VCEO = −40 V (vs. −50 V). | Limited to 12 V systems; lower gain may require higher drive current for full saturation. | Select only for cost-sensitive 12 V non-critical applications where −40 V rating suffices. |
Compared with DDTA144W-7, DDTA144GE-7 offers superior board-area efficiency and AEC-Q101 alignment, while NSV14001MT1G trades off voltage margin and gain for alternate supply-chain availability in non-automotive contexts.
Availability
DDTA144GE-7 is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control, and industrial sensor interface designs requiring stable component supply and AEC-Q101 compliance.
Supply support for DDTA144GE-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, environmentally compliant components for automotive, industrial, and consumer markets.
The DDTA (R2-only series) product line delivers pre-biased PNP transistors optimized for space-constrained, thermally sensitive automotive switching applications with simplified bill-of-materials.
FAQ
What is the function of the R2-only configuration in DDTA144GE-7?
The R2-only configuration integrates a single 47 kΩ resistor between base and emitter, eliminating the need for an external R1 resistor. This simplifies circuit design for high-side switching, reduces PCB area, and ensures consistent bias current without layout-dependent parasitics. It is not compatible with R1+R2 bias topologies.
Does DDTA144GE-7 support 24 V automotive systems?
Yes. With −50 V VCEO and −50 V VCBO, DDTA144GE-7 supports 24 V nominal systems including load dump transients up to ISO 7637-2 Pulse 5a (−120 V). Its AEC-Q101 qualification confirms suitability for under-hood and body control module environments.
How does the SOT523 package affect thermal performance?
The SOT523 package has a high thermal resistance of 833 °C/W (junction-to-ambient on FR4), limiting continuous power dissipation to 150 mW at 25 °C. Derating is required above ambient: e.g., only ~90 mW at 85 °C. Layout with copper pour improves heat spreading but does not change the intrinsic RθJA.
Can DDTA144GE-7 replace a standard PNP transistor like BC807?
No. DDTA144GE-7 is not a drop-in replacement for discrete PNP transistors such as BC807 because it lacks an accessible base terminal for external bias control. Its R2-only architecture fixes the base-emitter path, making it incompatible with circuits requiring adjustable or active base drive.
DDTA144GE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
DDTA144GE-7 FAQ
1.How can I place an order for DDTA144GE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA144GE-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 DDTA144GE-7 reliable?
The price and inventory of DDTA144GE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA144GE-7 is usually 5 days.
3.What payment methods are accepted for DDTA144GE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA144GE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA144GE-7?
DDTA144GE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA144GE-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 DDTA144GE-7?
For technical support, including DDTA144GE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA144GE-7 requirements.
6.How does Aetrix verify that DDTA144GE-7 is sourced from the original manufacturer or authorized distributors?
All DDTA144GE-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 DDTA144GE-7 meets industry standards.
7.What is the process for return or replacement of DDTA144GE-7?
All DDTA144GE-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA144GE-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 DDTA144GE-7 part is unused and in its original packaging.
Return procedure for DDTA144GE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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