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Diodes Incorporated DDTA124GE-7-F
- Part No.:
- DDTA124GE-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SOT-523
- Datasheet:
-
DDTA124GE-7-F.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:8,550
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Product details
Overview
DDTA124GE-7-F from Diodes Incorporated is a PNP pre-biased small-signal transistor with built-in 22 kΩ bias resistor (R2 only), housed in an SOT523 package. It supports −50 V VCEO, −100 mA IC, and delivers hFE = 56 at −5 mA/−5 V, enabling compact high-reliability switching in automotive body electronics and industrial sensor interfaces.
For engineers reviewing the DDTA124GE-7-F datasheet, DDTA124GE-7-F pinout, DDTA124GE-7-F application, or DDTA124GE-7-F equivalent, key selection criteria include R2-only bias topology, AEC-Q101 qualification, SOT523 thermal performance (RθJA = 833 °C/W), and guaranteed −0.3 V VCE(sat) at −10 mA/−0.5 mA drive.
Technical Context
This device implements a single-PNP transistor with monolithic integration of a 22 kΩ base-emitter pull-up resistor (R2), eliminating external bias components. Its epitaxial planar die construction ensures stable gain (hFE = 56 typ.) and low saturation voltage (VCE(sat) ≤ −0.3 V) under defined drive conditions.
Designed for surface-mount reliability, it operates across −55 °C to +150 °C, meets AEC-Q101 stress testing for automotive use, and features matte tin-plated leads compliant with MIL-STD-202 Method 208 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter voltage before breakdown in common-emitter configuration. |
| IC (max) | −100 mA: Continuous DC collector current limit without thermal derating on FR4 board. |
| hFE | 56 (typ.): DC current gain at −5 mA IC, −5 V VCE; enables predictable switching threshold in digital logic interfaces. |
| VCE(sat) | −0.3 V (max): Low saturation voltage at −10 mA IC/−0.5 mA IB; minimizes power loss in active-low switch applications. |
| R2 | 22 kΩ ±30%: Integrated base-emitter bias resistor; eliminates need for external pull-up, reducing BOM count and PCB area. |
| PD | 150 mW: Maximum power dissipation on standard FR4 with minimum pad layout; defines thermal envelope for continuous operation. |
| fT | 250 MHz (typ.): Gain-bandwidth product; supports signal switching up to ~10–20 MHz with adequate gain margin. |
Pinout & Package
Package: SOT523 - ultra-small plastic surface-mount case (1.60 × 1.60 × 0.75 mm), UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal | Connected internally to R2; serves as reference node for bias network and load return path. |
| Base (B) | Control input node | Internally tied to one end of R2; accepts TTL/CMOS-compatible logic-level drive for direct microcontroller interfacing. |
| Collector (C) | Switched output terminal | Drives loads (e.g., LEDs, relays, MOSFET gates) in high-side or low-side configurations with defined saturation behavior. |
Key Features
| Feature | Design Value |
|---|---|
| R2-only integrated bias | Single 22 kΩ resistor between base and emitter enables simplified active-low switching without external components. |
| AEC-Q101 qualification | Validated for automotive applications including body control modules and lighting drivers requiring extended temperature and reliability compliance. |
| SOT523 footprint | 0.002 g mass and 1.6 mm × 1.6 mm outline reduce PCB space by >40% vs. SOT23 while maintaining hand-solderability. |
| Green compound packaging | Halogen- and antimony-free molding compound (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) meets global environmental directives. |
Applications
| Automotive Interior Lighting | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving LED strings in door handle illumination and map light modules with PWM dimming. IC Role / Device Role / Timing Role: PNP pre-biased switch controlling cathode-side current path; provides fast turn-off and low VCE(sat) to minimize heat in confined spaces. Use Value: Eliminates discrete base resistor, reduces component count per channel, and maintains stable hFE over −40 °C to +105 °C ambient. | Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor-based HVAC feedback) into MCU ADC inputs. IC Role / Device Role / Timing Role: Active-low interface amplifier with fixed gain and rail-to-rail input compatibility; used in open-collector output stages. Use Value: R2-only topology ensures predictable bias point independent of MCU GPIO leakage, improving measurement repeatability. |
| Consumer Appliance Control Panels | Medical Diagnostic Equipment Indicators |
Use Scenario: Enabling/disabling backlight segments and tactile feedback LEDs in washing machine and oven control boards. IC Role / Device Role / Timing Role: High-side load switch activated by microcontroller GPIO; leverages −50 V VCEO headroom for 24 V supply rails. Use Value: Guaranteed −0.3 V VCE(sat) limits power dissipation to <3 mW per switch at 10 mA, avoiding thermal derating in dense layouts. | Use Scenario: Isolating status indicators (e.g., "Ready", "Error") from main processor in portable ultrasound and ECG units. IC Role / Device Role / Timing Role: Fail-safe indicator driver with AEC-Q101 reliability assurance and −55 °C to +150 °C operating range. Use Value: Matte tin plating and J-STD-020 Level 1 moisture rating ensure robust reflow yield and long-term interconnect integrity in field-deployed devices. |
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 |
|---|---|---|---|
| DDTA124EU-7-F | Same R2 = 22 kΩ, but SOT323 package (larger footprint, higher RθJA = 625 °C/W) | Preferred where manual rework or thermal margin >200 mW is required | Select when board space allows larger package and higher power handling is needed. |
| NSV12400MT1G | PNP pre-biased, R2 = 22 kΩ, but SOD-923 package (0.8 × 0.6 mm); lower IC rating (−50 mA) | Suitable for ultra-dense wearables or hearing aid PCBs with strict size constraints | Choose only if max load current ≤50 mA and footprint reduction outweighs derated current capability. |
Compared with DDTA124GE-7-F, the DDTA124EU-7-F offers better thermal performance in less space-constrained designs, while the NSV12400MT1G trades current capacity for minimal footprint-making the DDTA124GE-7-F optimal for balanced size, reliability, and −100 mA drive in automotive and industrial edge nodes.
Availability
DDTA124GE-7-F is available at Aetrix Electronics and suitable for automotive interior lighting, industrial sensor interfaces, consumer appliance control panels, and medical diagnostic equipment indicators requiring stable component supply and AEC-Q101 compliance.
Supply support for DDTA124GE-7-F 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 automotive, industrial, and consumer markets.
The DDTA (R2-only series) is part of Diodes' pre-biased transistor portfolio designed specifically for simplified digital switching in space-constrained, high-volume applications where AEC-Q101 qualification and reduced BOM count are critical.
FAQ
What is the function of the R2-only bias configuration in DDTA124GE-7-F?
The R2-only configuration integrates a single 22 kΩ resistor between base and emitter, providing fixed pull-up bias without a second resistor to ground. This simplifies active-low switching circuits, reduces component count, and ensures consistent turn-on behavior with logic-level inputs-ideal for direct GPIO interfacing in microcontroller-based systems.
Can DDTA124GE-7-F replace a standard PNP BJT in existing designs?
Yes, but only if the original design uses base-resistor biasing and does not require adjustable gain or dual-resistor (R1+R2) bias networks. The DDTA124GE-7-F replaces both transistor and R2 resistor; external R1 must be removed. Layout must accommodate SOT523 footprint and verify thermal limits given its 150 mW power rating.
Is DDTA124GE-7-F suitable for 24 V automotive applications?
Yes. With −50 V VCEO and −50 V VCBO, it safely handles transients and load-dump spikes common in 12 V/24 V automotive systems. Its AEC-Q101 qualification, −55 °C to +150 °C operating range, and matte tin plating further validate suitability for under-hood and cabin modules.
How does the SOT523 package affect thermal performance compared to SOT23?
The SOT523 package has higher thermal resistance (RθJA = 833 °C/W vs. ~200–350 °C/W for SOT23), limiting continuous power dissipation to 150 mW on FR4. Designers must ensure ambient temperature stays below 100 °C or implement copper pour and thermal vias to maintain junction temperature within −55 °C to +150 °C limits.
DDTA124GE-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 56 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA (ICBO)
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 150 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
DDTA124GE-7-F FAQ
1.How can I place an order for DDTA124GE-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA124GE-7-F 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 DDTA124GE-7-F reliable?
The price and inventory of DDTA124GE-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA124GE-7-F is usually 5 days.
3.What payment methods are accepted for DDTA124GE-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA124GE-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA124GE-7-F?
DDTA124GE-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA124GE-7-F 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 DDTA124GE-7-F?
For technical support, including DDTA124GE-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA124GE-7-F requirements.
6.How does Aetrix verify that DDTA124GE-7-F is sourced from the original manufacturer or authorized distributors?
All DDTA124GE-7-F 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 DDTA124GE-7-F meets industry standards.
7.What is the process for return or replacement of DDTA124GE-7-F?
All DDTA124GE-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTA124GE-7-F, 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 DDTA124GE-7-F part is unused and in its original packaging.
Return procedure for DDTA124GE-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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