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Diodes Incorporated DDTA113ZCA-7
- Part No.:
- DDTA113ZCA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDTA113ZCA-7.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,756
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Product details
Overview
DDTA113ZCA-7 from Diodes Incorporated is a 50V PNP pre-biased transistor in SOT23 package, featuring integrated R1 = 1 kΩ and R2 = 10 kΩ bias resistors. It delivers DC current gain (hFE) of 33 at IC = −10 mA, VCE = −5 V, supports −100 mA output current, and operates across −55°C to +150°C for automotive and industrial logic-level switching applications.
For engineers reviewing the DDTA113ZCA-7 datasheet, DDTA113ZCA-7 pinout, DDTA113ZCA-7 application, or DDTA113ZCA-7 equivalent, key selection criteria include input voltage thresholds (Vin(on) = −3.0 V @ IOUT = −20 mA), output saturation voltage (VOUT(on) ≤ −0.3 V), resistor tolerance (±30% on R1), thermal resistance (625°C/W), and AEC-Q101 qualification readiness.
Technical Context
This device integrates two precision bias resistors (R1 = 1 kΩ, R2 = 10 kΩ) directly into a PNP epitaxial planar transistor die, eliminating external base-resistor networks. Its internal resistor ratio (R2/R1 = 10) sets fixed current gain and enables predictable turn-on behavior with Vin(on) = −3.0 V and Vin(off) ≤ −0.3 V.
Designed for surface-mount automated assembly, it uses matte tin-plated leads compliant with MIL-STD-202 Method 208 and achieves 200 mW power dissipation on FR4 PCBs. The SOT23 package supports high-density layouts while maintaining thermal performance up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum collector-emitter blocking voltage before breakdown. |
| IC(max) | −100 mA: Continuous collector current rating under thermal limits. |
| hFE | 33 (min): DC current gain at −10 mA collector current, enabling reliable digital switching. |
| R1 / R2 | 1 kΩ / 10 kΩ: Fixed internal bias network providing stable base drive without external components. |
| VOUT(on) | ≤ −0.3 V: Saturation voltage at −5 mA output, ensuring low conduction loss in load-switching roles. |
| PD | 200 mW: Power dissipation limit on standard FR4 board, defining maximum safe operating power. |
| RθJA | 625 °C/W: Thermal resistance from junction to ambient, guiding heatsinking and layout decisions. |
Pinout & Package
Package: SOT23 - 3-pin surface-mount plastic package, 2.9 mm × 1.3 mm × 1.0 mm, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current source terminal; connects to system ground or low-side return path in PNP switch configurations. |
| 2 (Base) | B | Internally connected to R1–R2 node; accepts logic-level input to control transistor conduction state. |
| 3 (Collector) | C | Current sink terminal; ties to load supply rail (e.g., −5 V or −12 V) in high-side switching topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1/R2 bias network | 1 kΩ/10 kΩ resistors monolithically embedded-eliminates 2 external components and improves layout reliability. |
| Epitaxial planar construction | Enables tight parameter distribution (hFE min = 33) and stable operation across −55°C to +150°C. |
| SOT23 surface-mount package | 0.008 g weight and JEDEC-compliant footprint support high-volume automated placement and reflow. |
| Lead-free & halogen-free | RoHS 3 (2015/863/EU) and "Green" certified (<900 ppm Br/Cl, <1000 ppm Sb), meeting automotive environmental requirements. |
Applications
| Automotive Door Module Logic Switch | Industrial PLC Input Buffer |
|---|---|
Use Scenario: Driving small solenoids or LEDs in vehicle door latch assemblies using 5 V or 12 V battery-supplied rails. IC Role / Device Role / Timing Role: PNP pre-biased switch controlling current flow from battery to load when MCU GPIO pulls base low. Use Value: Eliminates discrete base resistor design effort and ensures consistent turn-on threshold (Vin(on) = −3.0 V) across temperature and production lots. |
Use Scenario: Level-shifting and isolating 24 V industrial sensor signals into 3.3 V/5 V microcontroller inputs. IC Role / Device Role / Timing Role: Active-low input buffer converting high-voltage off-state to logic-low, with built-in pull-down via R2. Use Value: Reduces BOM count by integrating R1/R2, maintains noise immunity with Vin(off) ≤ −0.3 V, and supports wide ambient range (−40°C to +85°C). |
| Consumer Appliance Power Sequencer | Medical Diagnostic Equipment Enable Circuit |
Use Scenario: Enabling auxiliary power rails in smart home hubs during boot-up sequence using MCU-controlled enable lines. IC Role / Device Role / Timing Role: High-side load switch activated by inverted logic signal to manage power domain sequencing. Use Value: Delivers −100 mA output current with VOUT(on) ≤ −0.3 V, minimizing voltage drop and heat generation during sustained conduction. |
Use Scenario: Safely enabling critical subsystems (e.g., analog front-end or display backlight) only after safety self-test completion. IC Role / Device Role / Timing Role: Fail-safe enable gate that remains OFF unless driven by validated controller output. Use Value: Built-in resistor tolerances (±30% R1, ±20% R2/R1) ensure predictable activation margin, supporting IEC 62304 Class C software safety requirements. |
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 |
|---|---|---|---|
| DDTA123YCA-7 | R1 = 2.2 kΩ, R2 = 10 kΩ → higher input impedance, lower IIN (−3.8 mA @ VIN = −5 V). | Better suited for low-power MCU GPIOs with limited sink capability; slower turn-on due to reduced base drive. | Select when driving from weak-sink outputs (e.g., older 8-bit MCUs) or where reduced standby current is critical. |
| DDTA143XCA-7 | R1 = 4.7 kΩ, R2 = 10 kΩ → highest input impedance, lowest IIN (−1.8 mA @ VIN = −5 V), Vin(on) = −2.5 V. | Requires higher negative input swing for activation; optimized for ultra-low-power sensing nodes. | Choose for battery-powered edge sensors needing minimal quiescent current and relaxed input voltage margins. |
Compared with DDTA123YCA-7 and DDTA143XCA-7, DDTA113ZCA-7 provides the strongest base drive (IIN = −7.2 mA @ −5 V) and deepest Vin(on) (−3.0 V), making it optimal for fast, robust switching in noisy industrial environments where GPIO drive strength is assured.
Availability
DDTA113ZCA-7 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC input buffers, and medical diagnostic equipment enable circuits requiring stable component supply, long-term lifecycle support, and RoHS 3 compliance.
Supply support for DDTA113ZCA-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 high-performance discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
This part belongs to Diodes' DDTA (R1≠R2 Series) pre-biased transistor family, engineered specifically for reducing component count and improving reliability in logic-level PNP switching applications across automotive, industrial, and consumer systems.
FAQ
What is the absolute maximum input voltage for DDTA113ZCA-7?
The absolute maximum input voltage (pin 1 to pin 2) is −10 V, as specified in the Absolute Maximum Ratings table. Exceeding this value risks permanent damage to the internal bias resistors or transistor junction. Operation above −10 V violates the device's safe operating area and may cause irreversible degradation even if within thermal limits.
Does DDTA113ZCA-7 meet AEC-Q101 stress test requirements?
DDTA113ZCA-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation; however, Diodes states that AEC-Q101 qualification requires specific change control and must be confirmed per part number with their automotive team. The datasheet notes "for automotive applications requiring AEC-Q101… please contact us or your local Diodes representative."
Can DDTA113ZCA-7 replace a discrete PNP transistor plus two resistors?
Yes - DDTA113ZCA-7 replaces a standard PNP BJT (e.g., MMBT3906) plus 1 kΩ and 10 kΩ base resistors. Its integrated R1/R2 network matches the exact values and topology shown in the schematic diagram, preserving identical biasing behavior while reducing PCB area, assembly steps, and parametric variation from resistor tolerances.
What is the typical gain-bandwidth product (fT) of DDTA113ZCA-7?
The gain-bandwidth product is 250 MHz, measured at VCE = −10 V, IE = −5 mA, and f = 100 MHz. This specification confirms suitability for medium-speed digital switching (e.g., PWM up to ~10 MHz) but not RF amplification; the device is optimized for DC and low-frequency logic interface, not analog signal amplification.
DDTA113ZCA-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):
- 1 kOhms
- Resistor - Emitter Base (R2):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 33 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- 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
DDTA113ZCA-7 FAQ
1.How can I place an order for DDTA113ZCA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA113ZCA-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 DDTA113ZCA-7 reliable?
The price and inventory of DDTA113ZCA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA113ZCA-7 is usually 5 days.
3.What payment methods are accepted for DDTA113ZCA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA113ZCA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA113ZCA-7?
DDTA113ZCA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA113ZCA-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 DDTA113ZCA-7?
For technical support, including DDTA113ZCA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA113ZCA-7 requirements.
6.How does Aetrix verify that DDTA113ZCA-7 is sourced from the original manufacturer or authorized distributors?
All DDTA113ZCA-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 DDTA113ZCA-7 meets industry standards.
7.What is the process for return or replacement of DDTA113ZCA-7?
All DDTA113ZCA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA113ZCA-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 DDTA113ZCA-7 part is unused and in its original packaging.
Return procedure for DDTA113ZCA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTA113ZCA-7 Tags
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MUN5211T1G
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Diodes Incorporated
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