Diodes Incorporated DDTC113ZE-7
- Part No.:
- DDTC113ZE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SOT-523
- Datasheet:
-
DDTC113ZE-7.pdf
- Description:
- TRANS PREBIAS NPN 150MW SOT523
- Quantity:
- Payment:

- Shipping:

Inventory:7,896
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDTC113ZE-7 from Diodes Incorporated is an NPN pre-biased transistor in SOT523 package, featuring integrated bias resistors R1 = 1 kΩ and R2 = 10 kΩ (R1 ≠ R2), VCEO = 50 V, IC(max) = 100 mA, and DC current gain (hFE) ≥ 33 at IC = 5 mA. It serves as a compact, single-device logic-level switch in space-constrained digital interface circuits.
For engineers reviewing the DDTC113ZE-7 datasheet, DDTC113ZE-7 pinout, DDTC113ZE-7 application, or DDTC113ZE-7 equivalent, key selection criteria include input threshold voltage (VI(off) = 0.3 V, VI(on) = 3.0 V), output saturation voltage (VO(on) ≤ 0.3 V), built-in resistor ratio tolerance (±20%), thermal resistance (833 °C/W), and automotive-grade qualification readiness per AEC-Q101.
Technical Context
This device integrates an NPN bipolar transistor with two monolithically embedded resistors-R1 connected between base and input, R2 between base and emitter-enabling direct TTL/CMOS-compatible switching without external bias components. Its R1/R2 asymmetry (1kΩ/10kΩ) ensures reliable turn-on at low input voltages while maintaining high noise immunity.
The SOT523 package supports high-density PCB layouts, and its 150 mW power dissipation rating is validated under JEDEC-standard FR-4 mounting conditions. The device exhibits fT = 250 MHz, confirming suitability for medium-speed digital switching up to ~10–20 MHz edge rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V industrial control rails with safety margin. |
| IC(max) | 100 mA - Continuous collector current limit; supports driving small relays, LEDs, or logic inputs without external current limiting. |
| R1 / R2 | 1 kΩ / 10 kΩ - Asymmetric internal bias network; provides ~0.3 V input threshold and robust high-side logic compatibility. |
| VO(on) | ≤ 0.3 V @ IO = 5 mA - Low saturation voltage ensures minimal power loss and clean low-state signaling in digital interfaces. |
| hFE | ≥ 33 @ VCE = 5 V, IC = 5 mA - Guaranteed DC current gain ensures stable switching across temperature and process variation. |
| fT | 250 MHz - Transition frequency confirms adequate bandwidth for fast digital edge handling in microcontroller GPIO expansion. |
Pinout & Package
Package: SOT523 - ultra-small surface-mount plastic package (1.60 mm × 1.60 mm × 0.75 mm), moisture sensitivity level 1, matte tin-plated leads, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter terminal of internal NPN transistor | Reference node for bias network; connects to system ground or low-side return path. |
| 2 (Base) | Internal base node, accessible only via R1 and R2 | Not externally accessible; biasing is fully internalized to eliminate layout sensitivity and reduce BOM count. |
| 3 (Collector) | Collector terminal of internal NPN transistor | Switched output node; sinks current from load (e.g., LED anode or MCU input pull-up) to ground when active. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 ≠ R2 bias network | 1 kΩ (R1) and 10 kΩ (R2) laser-trimmed resistors enable precise VI(on)/VI(off) thresholds without external components. |
| Epitaxial planar die construction | Ensures consistent hFE, low leakage (IO(off) ≤ 0.5 μA), and stable performance over -55°C to +150°C. |
| SOT523 footprint | 0.002 g weight and 1.6 mm × 1.6 mm outline allow placement in wearables, sensor nodes, and multi-channel I/O expanders. |
| AEC-Q101 readiness | Manufactured in IATF 16949-certified facilities; supports PPAP documentation for automotive body electronics and infotainment interfaces. |
Applications
| LED Driver Interface | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving discrete indicator LEDs from 3.3 V or 5 V MCU outputs in portable instrumentation. IC Role / Device Role / Timing Role: Single-NPN switch replacing discrete transistor + two resistors; provides logic-level compatible on/off control. Use Value: Reduces board area by >40% vs. discrete solution and eliminates resistor placement error risk in high-volume assembly. |
Use Scenario: Adding buffered digital inputs/outputs to resource-constrained microcontrollers (e.g., STM32L0, nRF52). IC Role / Device Role / Timing Role: Level-shifting and current-sinking interface between mixed-voltage subsystems (e.g., 1.8 V sensor ↔ 3.3 V host). Use Value: Enables reliable signal inversion and fan-out without external pull-ups or level translators, preserving GPIO timing integrity. |
| Industrial Sensor Signal Conditioning | Automotive Body Control Module |
Use Scenario: Converting open-collector sensor outputs (e.g., Hall effect, reed switch) into clean CMOS-compatible signals. IC Role / Device Role / Timing Role: Active pull-down stage with defined VI(on) = 3.0 V and VI(off) = 0.3 V for noise-immune threshold detection. Use Value: Eliminates false triggering in EMI-prone environments (e.g., motor drives, solenoid controls) due to tight input hysteresis. |
Use Scenario: Controlling small loads (e.g., door lock actuators, mirror heaters) in 12 V automotive body networks. IC Role / Device Role / Timing Role: High-side or low-side switch driver with 50 V VCEO margin and AEC-Q101-aligned manufacturing traceability. Use Value: Supports ASIL-B–compatible designs through documented process control, PPAP readiness, and extended temperature operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar pre-biased NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDTC123YE-7-F | R1 = 2.2 kΩ, R2 = 10 kΩ; higher VI(on) = 3.0 V at IO = 20 mA; identical package and VCEO. | Better suited for 5 V logic systems where higher input threshold improves noise margin against crosstalk. | Select when interfacing with noisy 5 V buses or when tighter input hysteresis is required. |
| DDTC143XE-7-F | R1 = 4.7 kΩ, R2 = 10 kΩ; VI(on) = 1.1 V at IO = 20 mA; same IC(max) and thermal specs. | Optimized for 1.8–3.3 V I/O domains (e.g., IoT sensors, battery-powered MCUs) with lower drive strength demand. | Choose for ultra-low-voltage logic compatibility where 3.0 V VI(on) would cause marginal turn-on. |
Compared with DDTC123YE-7-F and DDTC143XE-7-F, the DDTC113ZE-7 offers the lowest R1 value (1 kΩ), enabling fastest turn-on response and highest input drive capability among the R1≠R2 series-ideal for high-speed GPIO toggling and legacy 5 V TTL signal conditioning.
Availability
DDTC113ZE-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, wearable LED indicators, and automotive body electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for DDTC113ZE-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 the Americas.
The DDTC series belongs to Diodes' pre-biased transistor product line, engineered specifically for reducing bill-of-materials count and improving layout reliability in digital interface and level-shifting applications across consumer, industrial, and automotive markets.
FAQ
What is the maximum operating temperature range for DDTC113ZE-7?
The DDTC113ZE-7 is rated for junction and storage temperatures from –55°C to +150°C. This full industrial range is validated per the datasheet's Absolute Maximum Ratings table and supported by its epitaxial planar die construction and green molding compound, making it suitable for under-hood automotive and high-temperature industrial environments.
Can DDTC113ZE-7 replace a standard 2N3904 with external bias resistors?
Yes-DDTC113ZE-7 replaces a 2N3904 plus two discrete resistors (1 kΩ and 10 kΩ) in common-emitter switch configurations. Its integrated R1/R2 network delivers identical biasing behavior with improved consistency, reduced PCB area, and elimination of resistor placement errors, while maintaining the same SOT523 footprint and thermal profile.
Is DDTC113ZE-7 qualified to AEC-Q101?
DDTC113ZE-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified as a standard AEC-Q101 part, Diodes Incorporated confirms it meets AEC-Q101 stress test requirements upon customer request and change-controlled release-making it viable for automotive body electronics with proper qualification oversight.
What is the meaning of "R1 ≠ R2" in the DDTC series designation?
"R1 ≠ R2" indicates the device uses two distinct, non-matching internal bias resistors: R1 connects input to base, R2 connects base to emitter. This asymmetry creates defined input threshold voltages (e.g., VI(on) = 3.0 V, VI(off) = 0.3 V for DDTC113ZE-7), unlike symmetrical R1 = R2 types that offer only generic switching behavior without precise logic-level compatibility.
DDTC113ZE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- NPN - 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 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 150 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
DDTC113ZE-7 FAQ
1.How can I place an order for DDTC113ZE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTC113ZE-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 DDTC113ZE-7 reliable?
The price and inventory of DDTC113ZE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTC113ZE-7 is usually 5 days.
3.What payment methods are accepted for DDTC113ZE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC113ZE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTC113ZE-7?
DDTC113ZE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTC113ZE-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 DDTC113ZE-7?
For technical support, including DDTC113ZE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC113ZE-7 requirements.
6.How does Aetrix verify that DDTC113ZE-7 is sourced from the original manufacturer or authorized distributors?
All DDTC113ZE-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 DDTC113ZE-7 meets industry standards.
7.What is the process for return or replacement of DDTC113ZE-7?
All DDTC113ZE-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTC113ZE-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 DDTC113ZE-7 part is unused and in its original packaging.
Return procedure for DDTC113ZE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTC113ZE-7 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…

