My Inquiry
My Account
Diodes Incorporated DDTA113ZUA-7-F
- Part No.:
- DDTA113ZUA-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
DDTA113ZUA-7-F.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,890
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDTA113ZUA-7-F from Diodes Incorporated is a PNP pre-biased small-signal transistor in SOT-323 package with built-in bias resistors R1 = 1 kΩ and R2 = 10 kΩ (R1 ≠ R2), −50 V VCEO, −100 mA IC, and DC current gain (hFE) of −33 at −10 mA IC. It functions as a logic-level interface switch in low-power digital control circuits, such as microcontroller GPIO driver stages for LED or relay loads.
For engineers reviewing the DDTA113ZUA-7-F datasheet, DDTA113ZUA-7-F pinout, DDTA113ZUA-7-F application, or DDTA113ZUA-7-F equivalent, key selection criteria include input voltage thresholds (VIN(on) = −3.0 V @ IO = −20 mA), output saturation voltage (VO(on) = −0.1 V), thermal resistance (RθJA = 625 °C/W), and RoHS-compliant green molding compound construction.
Technical Context
This device integrates a PNP bipolar junction transistor with two discrete on-die base biasing resistors (R1 = 1 kΩ, R2 = 10 kΩ), enabling single-resistor input drive without external bias network. Its R1 ≠ R2 topology provides asymmetric input impedance and improved noise immunity over standard dual-equal-resistor configurations.
Designed for surface-mount logic interfacing, it operates with input voltages ranging from +5 V to −10 V and delivers −100 mA output current into saturated switching. The SOT-323 package supports high-density PCB 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; enables use in 24 V industrial control rails with safety margin. |
| IC (max) | −100 mA - Continuous collector current rating; sufficient for driving LEDs, small relays, or MOSFET gates directly. |
| hFE | −33 - DC current gain at −10 mA IC; ensures predictable switching behavior with known base drive requirements. |
| VIN(on) | −3.0 V @ IO = −20 mA - Input threshold for reliable turn-on; compatible with 3.3 V and 5 V logic families when referenced to VCC. |
| VO(on) | −0.1 V - Saturation voltage across C–E; minimizes power loss (Psat ≈ 2 mW at −20 mA) in active switching. |
| PD | 200 mW - Maximum power dissipation at TA = 25 °C; derates linearly above 25 °C per 625 °C/W thermal resistance. |
Pinout & Package
Package: SOT-323 - ultra-small plastic surface-mount package (2.0 × 1.25 × 0.9 mm), moisture sensitivity level 1, lead-free matte tin plating, UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Input reference / GND(+) node | Connected internally to R2 and transistor emitter; serves as common return for bias network and load current path. |
| 2 (Base) | Internal connection point | Not externally accessible; connects R1–R2 junction to transistor base; eliminates need for external base resistor. |
| 3 (Collector) | Output / switched load terminal | Drives external load (e.g., LED anode or relay coil) to VCC; sinks current when biased ON. |
Key Features
| Feature | Design Value |
|---|---|
| Pre-biased configuration | R1 = 1 kΩ, R2 = 10 kΩ - eliminates external bias components, reduces BOM count, and improves layout consistency. |
| Green molding compound | Halogen-free, Sb2O3-free construction (Date Code 0627+) - meets IPC-1752 and JEDEC J-STD-020C environmental compliance. |
| Low saturation voltage | VO(on) = −0.1 V @ IO = −20 mA - reduces conduction loss and self-heating in battery-powered or thermally constrained designs. |
| High input voltage range | VIN = +5 V to −10 V - supports bidirectional logic translation and negative-voltage interface applications. |
Applications
| Microcontroller GPIO Driver | LED Indicator Control |
|---|---|
Use Scenario: Driving discrete LEDs from 3.3 V or 5 V MCU I/O pins where sink-current capability is required. IC Role / Device Role / Timing Role: Active-low level shifter and current sink switch; interfaces TTL/CMOS logic to common-anode LED loads. Use Value: Eliminates need for external base resistor and pull-up; achieves <100 ns turn-off delay with minimal board space. | Use Scenario: Status indication in industrial HMI panels using 12 V supply rails and red/green dual-color LEDs. IC Role / Device Role / Timing Role: High-side referenced current sink for common-anode LED strings. Use Value: Withstands −50 V VCEO, enabling direct connection to 24 V systems without additional protection diodes. |
| Relay Coil Interface | Level Translation for RS-232 Logic |
Use Scenario: Switching 5 V or 12 V reed relays in programmable logic controllers (PLCs) with isolated outputs. IC Role / Device Role / Timing Role: Low-power, low-leakage switch for relay coil energization and de-energization. Use Value: IO(off) = −0.5 μA ensures negligible standby current; RθJA = 625 °C/W allows operation at 70 °C ambient without heatsink. | Use Scenario: Converting RS-232 line receiver outputs (+3 V to −12 V swing) to 0 V / −5 V logic levels for legacy UART peripherals. IC Role / Device Role / Timing Role: Inverting level translator with defined input hysteresis via R1/R2 ratio. Use Value: VIN(on) = −3.0 V and Vl(off) = −0.3 V provide clean transition between RS-232 logic states without external comparators. |
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 |
|---|---|---|---|
| DDTA123YUA-7-F | R1 = 2.2 kΩ, R2 = 10 kΩ; VIN(on) = −3.0 V @ −20 mA; hFE = −33 | Higher input impedance; slightly slower turn-on due to increased R1 | Select when lower base current draw is prioritized over fastest switching. |
| DDTA143XUA-7-F | R1 = 4.7 kΩ, R2 = 10 kΩ; VIN(on) = −20 V max; hFE = −30 | Extended negative input range; optimized for −15 V logic interfaces | Choose for compatibility with wide-range industrial bus signaling (e.g., CAN physical layer auxiliary control). |
Compared with DDTA123YUA-7-F and DDTA143XUA-7-F, DDTA113ZUA-7-F offers the lowest input resistance (1 kΩ), enabling faster switching and higher drive strength at the cost of slightly higher base current consumption - ideal for high-speed GPIO buffering where timing margin is critical.
Availability
DDTA113ZUA-7-F is available at Aetrix Electronics and suitable for microcontroller GPIO drivers, LED indicator control, and relay coil interfaces requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for DDTA113ZUA-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, headquartered in Plano, Texas, with design, manufacturing, and distribution operations across Asia, Europe, and North America.
This part belongs to the DDTA (R1≠R2 Series) UA family of pre-biased transistors, engineered specifically for simplified logic-level interface and low-power switching in space-constrained consumer, industrial, and automotive control modules.
FAQ
What is the maximum operating temperature for DDTA113ZUA-7-F?
The device supports junction temperatures from −55 °C to +150 °C. At ambient temperatures above 25 °C, power dissipation must be derated linearly using RθJA = 625 °C/W. For example, at 70 °C ambient, maximum allowable PD drops to 112.5 mW to maintain TJ ≤ 150 °C.
Can DDTA113ZUA-7-F replace a standard PNP transistor like BC807?
No - DDTA113ZUA-7-F integrates internal bias resistors and is not a drop-in replacement for discrete transistors. It requires no external base resistor but cannot be used in amplifier or linear-regulator configurations where adjustable bias is needed. Its design is strictly for digital switching applications.
Is the SOT-323 package compatible with standard reflow profiles?
Yes - the SOT-323 package is rated for moisture sensitivity level 1 per J-STD-020C and supports standard Pb-free reflow profiles (peak temperature ≤ 260 °C). Recommended pad layout follows Diodes Inc. AP02001 guidelines to ensure thermal reliability and solder joint integrity.
What does the "Z" in DDTA113ZUA signify?
The "Z" is the type code identifying the specific R1/R2 combination: R1 = 1 kΩ, R2 = 10 kΩ. This code appears in the device marking and ordering information (e.g., DDTA113ZUA-7-F) and distinguishes it from other variants like DDTA123YUA (R1 = 2.2 kΩ, R2 = 10 kΩ) within the same series.
DDTA113ZUA-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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):
- 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-323
DDTA113ZUA-7-F FAQ
1.How can I place an order for DDTA113ZUA-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA113ZUA-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 DDTA113ZUA-7-F reliable?
The price and inventory of DDTA113ZUA-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 DDTA113ZUA-7-F is usually 5 days.
3.What payment methods are accepted for DDTA113ZUA-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA113ZUA-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA113ZUA-7-F?
DDTA113ZUA-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA113ZUA-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 DDTA113ZUA-7-F?
For technical support, including DDTA113ZUA-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA113ZUA-7-F requirements.
6.How does Aetrix verify that DDTA113ZUA-7-F is sourced from the original manufacturer or authorized distributors?
All DDTA113ZUA-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 DDTA113ZUA-7-F meets industry standards.
7.What is the process for return or replacement of DDTA113ZUA-7-F?
All DDTA113ZUA-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTA113ZUA-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 DDTA113ZUA-7-F part is unused and in its original packaging.
Return procedure for DDTA113ZUA-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTA113ZUA-7-F Tags
-
MUN5211T1G
onsemi
-
DTC043ZEBTL
Rohm Semiconductor
-
DTC114EKAT146
Rohm Semiconductor
-
DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
-
PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
-
PDTC143XT,215
Nexperia USA Inc.
-
MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
