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Diodes Incorporated DDTA123JCA-7
- Part No.:
- DDTA123JCA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDTA123JCA-7.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,677
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Product details
Overview
DDTA123JCA-7 from Diodes Incorporated is a 50V PNP pre-biased transistor in SOT23 package, featuring integrated R1=2.2kΩ and R2=47kΩ bias resistors. It delivers DC current gain (hFE) of 80 at IC=−5mA, VCE=−5V, with VOUT(ON) ≤ −0.3V and IOUT(max) = −100mA. Used for low-side switching in automotive LED control and industrial logic-level interface circuits.
For engineers reviewing the DDTA123JCA-7 datasheet, DDTA123JCA-7 pinout, DDTA123JCA-7 application, or DDTA123JCA-7 equivalent, key selection criteria include input voltage threshold (VIN(ON) = −1.1V @ IOUT=−5mA), output saturation voltage, resistor ratio tolerance (±20%), thermal resistance (625°C/W), and AEC-Q101 qualification status for automotive use.
Technical Context
This device integrates a PNP bipolar junction transistor with two monolithically embedded bias resistors (R1 to base, R2 from base to emitter), enabling single-resistor drive from microcontroller GPIOs. Its −1.1V turn-on threshold supports 3.3V/5V logic compatibility without external level-shifting.
The SOT23 package provides 200mW power dissipation on FR4 PCB with minimum pad layout, and the −55°C to +150°C operating range meets extended industrial and under-hood automotive requirements. Gain-bandwidth product is 250MHz at VCE=−10V, IE=−5mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50V - maximum collector-emitter blocking voltage in open-base configuration |
| IC(max) | −100mA - absolute maximum continuous collector current, defining load-switching capability |
| hFE | 80 (min) @ IC=−5mA, VCE=−5V - ensures reliable saturation under typical logic-driven switching loads |
| VIN(ON) | −1.1V @ IOUT=−5mA - enables direct drive from 3.3V CMOS outputs with margin |
| R1 / R2 | 2.2kΩ / 47kΩ - fixed internal bias network eliminating external components and reducing BOM count |
| RθJA | 625°C/W - thermal resistance determines safe power derating above +25°C ambient |
| PD | 200mW - maximum dissipation on standard FR4 board, limiting sustained switching frequency/duty cycle |
Pinout & Package
Package: SOT23 - surface-mount plastic package (2.9mm × 1.3mm × 1.0mm), RoHS-compliant, halogen-free, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter terminal of PNP transistor | Connected to load return path; current flows into this pin during conduction |
| 2 (Base) | Base node tied to R1 and R2 | Internal connection point between bias resistors; no external access - driven via Pin 1 and Pin 3 |
| 3 (Collector) | Collector terminal of PNP transistor | Connected to supply rail (VCC); sinks current when active |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | R1=2.2kΩ (base pull-up), R2=47kΩ (base-emitter feedback) - eliminates 2 external resistors and layout area |
| Logic-compatible input threshold | VIN(ON) = −1.1V @ −5mA - ensures full turn-on with 3.3V MCU I/O without level shifters |
| Automotive-grade reliability | AEC-Q101 qualified - validated for temperature cycling, HTRB, and ESD per automotive stress standards |
| Green packaging | Halogen- and antimony-free molding compound (Br+Cl <1500ppm, Sb <1000ppm) - compliant with JEDEC J-STD-020 and EU RoHS 3 |
Applications
| Automotive LED Tail Lamp Control | Industrial PLC Digital Output Module |
|---|---|
Use Scenario: Switching 12V LED arrays in rear lighting clusters using 3.3V microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-side PNP switch providing current sink path with built-in biasing for direct logic interface. Use Value: Eliminates discrete base resistors, reduces PCB footprint by >2.5mm² per channel, and ensures stable turn-on across −40°C to +125°C ambient. | Use Scenario: Driving 24V solenoid valves in factory automation I/O modules with isolated microcontroller outputs. IC Role / Device Role / Timing Role: Logic-level translator and current amplifier enabling safe 24V load switching from 3.3V/5V digital signals. Use Value: Delivers −100mA output with VOUT(ON) ≤ −0.3V, minimizing power loss and heat rise in high-density I/O banks. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Fan Control |
Use Scenario: Enabling sequential power-up of auxiliary rails (e.g., sensor bias, display backlight) in smart home hubs. IC Role / Device Role / Timing Role: Pre-biased PNP switch acting as enable gate for LDOs or DC-DC converters. Use Value: Input resistor ratio tolerance (±20%) ensures consistent turn-on timing across production lots without calibration. | Use Scenario: Controlling brushless fan speed in portable ultrasound units where EMI and component count are critical. IC Role / Device Role / Timing Role: PWM-driven low-side switch interfacing between MCU timer output and fan motor ground path. Use Value: 250MHz fT supports clean PWM edge response up to 50kHz, reducing audible noise and improving thermal regulation. |
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 |
|---|---|---|---|
| DDTA143ZCA-7-F | R1=4.7kΩ, R2=47kΩ; higher input impedance; VIN(ON) = −1.3V @ −5mA | Better suited for high-impedance drive sources (e.g., op-amp outputs), lower input current draw (−1.8mA vs −3.6mA) | Select when driving from weak-sourcing nodes or when lower input power is prioritized over faster switching |
| DDTA114YCA-7-F | R1=10kΩ, R2=47kΩ; VIN(ON) = −1.4V @ −1mA; hFE = 68 (min) | Optimized for ultra-low input current (−0.88mA) and low-load switching (≤−1mA), not rated for −100mA loads | Choose only for micro-power signal gating; not suitable as drop-in replacement for DDTA123JCA-7's −100mA capability |
Compared with DDTA143ZCA-7-F and DDTA114YCA-7-F, DDTA123JCA-7 offers the best balance of input drive strength (−3.6mA), output current capacity (−100mA), and turn-on voltage (−1.1V), making it optimal for general-purpose 3.3V/5V logic-driven switching where both speed and load capability matter.
Availability
DDTA123JCA-7 is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output stages, consumer appliance sequencing, and medical fan management requiring stable component supply and long-term lifecycle support.
Supply support for DDTA123JCA-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 DDTA series belongs to Diodes' pre-biased transistor product line, engineered specifically for reducing component count and improving reliability in logic-level interface and load-switching applications across automotive, industrial, and consumer markets.
FAQ
What is the maximum continuous collector current rating for DDTA123JCA-7?
The DDTA123JCA-7 is rated for −100mA maximum continuous collector current (IC(max)) at TA = +25°C with proper PCB thermal relief. Derating is required above +25°C ambient per the 625°C/W thermal resistance specification; at +85°C, usable current drops to approximately −60mA to maintain junction temperature below 150°C.
Does DDTA123JCA-7 require external bias resistors?
No. DDTA123JCA-7 integrates R1 = 2.2kΩ (connected between base and input) and R2 = 47kΩ (connected between base and emitter) internally. This eliminates the need for external bias resistors, simplifying schematic design and reducing PCB area while ensuring consistent biasing across temperature and process variation.
Is DDTA123JCA-7 qualified for automotive applications?
Yes. DDTA123JCA-7 is AEC-Q101 qualified and manufactured in IATF 16949 certified facilities. It undergoes stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD validation per automotive standards, making it suitable for under-hood and cabin applications such as body control modules and lighting drivers.
What is the marking code for DDTA123JCA-7 on the SOT23 package?
The top-side marking for DDTA123JCA-7 is "P06", followed by a two-character date code (e.g., "MD" for March 2025). The "P06" identifier is unique to this part number within the DDTA (R1≠R2) CA family and is laser-etched on the package for traceability and counterfeit prevention.
DDTA123JCA-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 2.2 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DDTA123JCA-7 FAQ
1.How can I place an order for DDTA123JCA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA123JCA-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 DDTA123JCA-7 reliable?
The price and inventory of DDTA123JCA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA123JCA-7 is usually 5 days.
3.What payment methods are accepted for DDTA123JCA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA123JCA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA123JCA-7?
DDTA123JCA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA123JCA-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 DDTA123JCA-7?
For technical support, including DDTA123JCA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA123JCA-7 requirements.
6.How does Aetrix verify that DDTA123JCA-7 is sourced from the original manufacturer or authorized distributors?
All DDTA123JCA-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 DDTA123JCA-7 meets industry standards.
7.What is the process for return or replacement of DDTA123JCA-7?
All DDTA123JCA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA123JCA-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 DDTA123JCA-7 part is unused and in its original packaging.
Return procedure for DDTA123JCA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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