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Diodes Incorporated DDTA113TCA-7
- Part No.:
- DDTA113TCA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
DDTA113TCA-7.pdf
- Description:
- TRANS PREBIAS PNP 200MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
DDTA113TCA-7 from Diodes Incorporated is a PNP pre-biased transistor in SOT23 package with single built-in bias resistor (R1 = 1 kΩ), −50 V VCEO, −100 mA IC, and hFE of 100–600, designed for compact logic-level switching and level-shifting in automotive and industrial control circuits.
For engineers reviewing the DDTA113TCA-7 datasheet, DDTA113TCA-7 pinout, DDTA113TCA-7 application, or DDTA113TCA-7 equivalent, key selection criteria include guaranteed R1 tolerance (±30%), VCE(sat) ≤ −0.3 V at IC/IB = −10 mA/−1 mA, AEC-Q101 qualification readiness, and SOT23 thermal resistance (625 °C/W).
Technical Context
This device integrates a monolithic PNP bipolar junction transistor with a precision 1 kΩ base-emitter pull-up resistor (R1 only), eliminating external bias components. It operates as a digital switch with defined saturation behavior under fixed current gain conditions (hFE = 100–600 at IC = −1 mA, VCE = −5 V).
Designed for low-power, high-reliability signal conditioning, it supports ambient temperatures from −55 °C to +150 °C and delivers stable VCE(sat) across temperature with thermal derating per FR4 PCB layout (200 mW max at +25 °C, linearly reduced above +25 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Supports rail-to-rail switching in 24 V industrial control and 12 V automotive systems without breakdown risk. |
| IC (max) | −100 mA - Enables direct drive of small relays, LEDs, or gate inputs without external amplification. |
| R1 (Nominal) | 1 kΩ ±30% - Ensures predictable base current for consistent turn-on threshold and noise immunity in digital interfaces. |
| VCE(sat) | ≤ −0.3 V @ IC/IB = −10 mA/−1 mA - Minimizes power loss and heat generation during active conduction. |
| hFE | 100–600 @ IC = −1 mA, VCE = −5 V - Provides wide gain margin for reliable switching across process and temperature variation. |
| PD | 200 mW @ TA = +25 °C - Matches thermal limits of standard SOT23 PCB footprints with minimum copper area. |
Pinout & Package
Package: SOT23 - Surface-mount plastic package (0.008 g), UL 94V-0 rated, moisture sensitivity Level 1, matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal | Connected to higher potential (e.g., VCC) in common-emitter switch configuration; defines reference for R1 bias path. |
| Base (B) | Control input node | Internally tied to R1; accepts TTL/CMOS-compatible logic-low input to activate transistor. |
| Collector (C) | Output current path | Drives load to ground when saturated; voltage drop ≤ −0.3 V ensures minimal logic-level shift in interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Epitaxial planar die construction | Ensures tight parameter distribution and long-term reliability in temperature-cycling environments. |
| R1-only bias network | Reduces BOM count by eliminating discrete base resistor; simplifies layout and improves ESD robustness vs. two-resistor configurations. |
| AEC-Q101 readiness | Qualified for automotive-grade applications requiring PPAP documentation and IATF 16949 manufacturing controls. |
| Halogen- and antimony-free "Green" compound | Meets <900 ppm Br, <900 ppm Cl (<1500 ppm total Br+Cl), and <1000 ppm Sb - compliant with global environmental directives. |
Applications
| Automotive Door Module Control | Industrial PLC Input Buffer |
|---|---|
|
Use Scenario: Driving window lift motor enable signals from microcontroller GPIOs in door control units. IC Role / Device Role / Timing Role: PNP pre-biased switch translating 3.3 V logic-low output into 12 V load activation. Use Value: Eliminates need for external base resistor and reduces PCB footprint by 35% versus discrete BJT + R solution. |
Use Scenario: Isolating 24 V field sensor inputs from 5 V logic-side FPGA I/O banks. IC Role / Device Role / Timing Role: Level-shifting interface with fast turn-off (toff < 100 ns) and low leakage (IEBO ≤ −0.5 μA). Use Value: Maintains signal integrity across wide temperature range (−40 °C to +85 °C) without gain drift compensation. |
| USB-C Power Delivery Sequencing | Smart Lighting Dimmer Interface |
|
Use Scenario: Enabling/disabling auxiliary power rails during USB PD negotiation sequences. IC Role / Device Role / Timing Role: Low-leakage, rail-tolerant switch controlling VBUS-adjacent enable lines. Use Value: Withstands −50 V VCB0 and −5 V VEB0, preventing latch-up during hot-swap transients. |
Use Scenario: Interfacing TRIAC gate drivers with MCU PWM outputs in DALI-compliant LED drivers. IC Role / Device Role / Timing Role: Digital on/off translator with guaranteed VCE(sat) ≤ −0.3 V ensuring clean zero-crossing detection. Use Value: Reduces thermal rise in enclosed luminaires due to 200 mW power dissipation limit and 625 °C/W RθJA. |
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 |
|---|---|---|---|
| DDTA113ZCA-7 | Same R1 = 1 kΩ, but uses Zener-clamped base-emitter protection; higher VEB0 = −6 V. | Preferred where transient overvoltage >5 V may occur on base line (e.g., CAN bus nodes). | Select when enhanced ESD immunity (IEC 61000-4-2 Level 4) is required beyond standard DDTA113TCA-7. |
| NSVDDTA113TWT1G | Identical R1 and hFE, but optimized for −40 °C to +150 °C operation and qualified to AEC-Q101 Grade 0. | Required for under-hood automotive modules with extended temperature requirements. | Choose when full AEC-Q101 Grade 0 certification and traceable PPAP documentation are mandatory. |
Compared with DDTA113ZCA-7 and NSVDDTA113TWT1G, DDTA113TCA-7 offers optimal cost-performance balance for non-safety-critical industrial and consumer applications where standard AEC-Q101 readiness suffices and Zener clamping is unnecessary.
Availability
DDTA113TCA-7 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC input buffers, and smart lighting dimmer interfaces requiring stable component supply, RoHS compliance, and SOT23 footprint compatibility.
Supply support for DDTA113TCA-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, energy-efficient components for automotive, industrial, and computing markets.
This part belongs to the DDTA R1-Only Series - a family of pre-biased PNP transistors engineered for simplified digital switching in space-constrained, thermally demanding applications where board area and assembly cost reduction are critical.
FAQ
What is the function of the internal R1 resistor in DDTA113TCA-7?
The internal 1 kΩ resistor connects the base to the emitter, providing fixed bias to ensure predictable turn-on behavior with logic-level inputs. It eliminates the need for an external base resistor, reducing component count and improving layout efficiency while maintaining stable hFE-dependent saturation performance across temperature.
Is DDTA113TCA-7 qualified for automotive use?
DDTA113TCA-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not fully AEC-Q101 certified out-of-box, it meets all electrical and mechanical requirements for automotive applications; Diodes provides change-controlled versions (e.g., NSVDDTA113TWT1G) for full qualification where mandated.
How does DDTA113TCA-7 differ from DDTA113ZCA-7?
DDTA113ZCA-7 adds a Zener diode between base and emitter for overvoltage protection, raising VEB0 from −5 V to −6 V and increasing leakage slightly. DDTA113TCA-7 lacks this Zener, offering lower cost and identical DC switching performance where transient suppression is handled externally.
Can DDTA113TCA-7 replace a standard PNP BJT like MMBT3906?
Yes - when used with logic-level drive (e.g., MCU GPIO pulling base low), DDTA113TCA-7 replaces MMBT3906 + external 1 kΩ resistor. Its integrated R1 ensures consistent IB and eliminates resistor tolerance effects, but requires verifying that system timing and leakage specs align with its fixed bias architecture.
DDTA113TCA-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:
- -
DDTA113TCA-7 FAQ
1.How can I place an order for DDTA113TCA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA113TCA-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 DDTA113TCA-7 reliable?
The price and inventory of DDTA113TCA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA113TCA-7 is usually 5 days.
3.What payment methods are accepted for DDTA113TCA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA113TCA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA113TCA-7?
DDTA113TCA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA113TCA-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 DDTA113TCA-7?
For technical support, including DDTA113TCA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA113TCA-7 requirements.
6.How does Aetrix verify that DDTA113TCA-7 is sourced from the original manufacturer or authorized distributors?
All DDTA113TCA-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 DDTA113TCA-7 meets industry standards.
7.What is the process for return or replacement of DDTA113TCA-7?
All DDTA113TCA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA113TCA-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 DDTA113TCA-7 part is unused and in its original packaging.
Return procedure for DDTA113TCA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTA113TCA-7 Tags
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