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Diodes Incorporated DDTC114YE-7
- Part No.:
- DDTC114YE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SOT-523
- Datasheet:
-
DDTC114YE-7.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:5,939
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Product details
Overview
DDTC114YE-7 from Diodes Incorporated is an NPN pre-biased transistor in SOT523 package, featuring integrated R1 = 10 kΩ and R2 = 4.7 kΩ bias resistors (R1 ≠ R2), VI(OFF) = 0.3 V, VI(ON) = 1.3 V (at IO = 1 mA), and IOUT = 70 mA max. It functions as a logic-level interface switch in low-power digital control circuits, such as LED driver enable stages and microcontroller GPIO load switching.
For engineers reviewing the DDTC114YE-7 datasheet, DDTC114YE-7 pinout, DDTC114YE-7 application, or DDTC114YE-7 equivalent, key selection criteria include input threshold voltage compatibility with 1.8–3.3 V logic families, guaranteed saturation at ≤1 mA input drive, output current capability under 5 V supply, and thermal performance in space-constrained SOT523 layouts.
Technical Context
This device integrates an NPN bipolar transistor with two non-matching on-chip base bias resistors (R1 = 10 kΩ, R2 = 4.7 kΩ), enabling predictable turn-on/turn-off behavior without external components. Its VI(OFF) = 0.3 V ensures robust noise immunity against sub-0.5 V glitches, while VI(ON) = 1.3 V supports direct interfacing with 1.8 V and 3.3 V CMOS outputs.
The 70 mA IOUT rating and 0.3 V VO(ON) (at IO = 10 mA / IL = 0.5 mA) reflect optimized saturation for low-loss switching in signal routing and power-enable paths. Its fT = 250 MHz confirms suitability for high-speed digital switching up to ~10–20 MHz edge rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VI(OFF) | 0.3 V - Ensures reliable cutoff with ≥0.5 V noise margin below typical 1.8 V logic '0' level |
| VI(ON) | 1.3 V - Guaranteed turn-on with standard 1.8 V or 3.3 V GPIO outputs driving ≥1 mA |
| IOUT (max) | 70 mA - Supports driving medium-current loads like indicator LEDs or small MOSFET gates |
| VO(ON) | 0.3 V - Low saturation voltage minimizes power loss and self-heating at 10 mA output |
| GI (DC current gain) | 68 - Stable current amplification ratio enables predictable base current sizing |
| R1 / R2 | 10 kΩ / 4.7 kΩ - Asymmetric resistor network provides precise bias point for fast switching |
| PD | 150 mW - Maximum dissipation limits continuous operation to ≤70 mA @ 5 V with adequate PCB copper |
Pinout & Package
Package: SOT523 - ultra-small surface-mount plastic package (1.60 × 1.60 × 0.75 mm), moisture sensitivity level 1, matte tin-plated leads, 0.002 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Input reference node for bias network | Connected internally to R2; serves as common return for input signal and output load |
| 2 (Base) | Internal transistor base connection | Not accessible externally; bias current flows through R1–R2 divider to set operating point |
| 3 (Collector) | Switched output terminal | Carries full load current (up to 70 mA); referenced to VCC (max 50 V) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 ≠ R2 bias network | 10 kΩ / 4.7 kΩ ratio ensures stable, temperature-invariant turn-on threshold and fast fall time |
| Guaranteed VI(OFF) ≤ 0.3 V | Eliminates need for external pull-down resistors in noise-prone environments |
| SOT523 footprint | Enables high-density placement in wearables, IoT sensors, and compact MCU modules |
| AEC-Q101 qualified option available | Supports automotive body electronics where reliability and PPAP compliance are required |
Applications
| LED Indicator Control | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving single-color status LEDs from low-drive-strength MCU pins (e.g., ARM Cortex-M0+ with 4 mA GPIO sink). IC Role / Device Role / Timing Role: Digital switch translating logic-high enable signal into 20 mA LED current path. Use Value: Eliminates discrete resistor + transistor bill-of-material; VI(ON) = 1.3 V ensures activation even with weak 1.8 V outputs. |
Use Scenario: Adding extra active-low enable lines for peripheral ICs (e.g., sensor reset, display sleep) beyond native GPIO count. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer between MCU and 5 V peripherals. Use Value: Delivers 70 mA sink capability with <100 ns propagation delay, supporting fast peripheral wake-up sequences. |
| Power Rail Enable Switch | Logic-Level Translation |
|
Use Scenario: Enabling/disabling 3.3 V LDO output to subsystems (e.g., RF module, memory) based on system state. IC Role / Device Role / Timing Role: High-side or low-side enable switch controlling PMOS/NMOS gate drive. Use Value: VO(ON) = 0.3 V keeps voltage drop under 3% at 50 mA, preserving regulation accuracy. |
Use Scenario: Converting 1.8 V logic signals to compatible levels for 3.3 V or 5 V receivers in mixed-voltage systems. IC Role / Device Role / Timing Role: Active-low inverter with defined VIH/VIL thresholds for clean signal translation. Use Value: Asymmetric R1/R2 yields sharp transition at 1.3 V, reducing metastability risk during voltage domain crossing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDTC114WE-7-F | R1 = 10 kΩ, R2 = 4.7 kΩ, but VI(ON) = 0.8 V (lower threshold), IOUT = 100 mA | Better suited for 1.2 V logic interfaces; higher output current supports heavier loads | Select when interfacing with sub-1.8 V processors or requiring >70 mA drive |
| DDTC124XE-7-F | R1 = 22 kΩ, R2 = 47 kΩ, VI(ON) = 1.4 V, IOUT = 50 mA | Higher input impedance reduces MCU loading; lower output current suits ultra-low-power nodes | Select for battery-powered devices where input current <1 µA standby matters more than drive strength |
Compared with DDTC114WE-7-F, DDTC114YE-7 offers tighter VI(ON) consistency at 1.3 V for 1.8 V logic, while DDTC124XE-7-F trades drive strength for reduced input loading-making DDTC114YE-7 optimal for balanced 1.8/3.3 V interface applications with moderate current needs.
Availability
DDTC114YE-7 is available at Aetrix Electronics and suitable for LED indicator control, microcontroller GPIO expansion, and power rail enable switching requiring stable component supply, consistent parametric performance across production lots, and long-term obsolescence management.
Supply support for DDTC114YE-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 consumer, industrial, and automotive markets.
This part belongs to the DDTC (R1≠R2 Series) pre-biased transistor family, designed specifically to simplify digital interface design by integrating asymmetric bias resistors that optimize switching speed, noise immunity, and logic-level compatibility.
FAQ
What is the maximum supply voltage for DDTC114YE-7?
The absolute maximum VCC is 50 V between collector and emitter. However, for reliable operation in standard 3.3 V or 5 V systems, it is rated for continuous use up to 30 V with derated power dissipation. The 150 mW power limit requires thermal design consideration above 20 V at full 70 mA load.
Can DDTC114YE-7 replace a standard NPN transistor with external resistors?
Yes-it replaces a discrete NPN transistor plus two base bias resistors (10 kΩ and 4.7 kΩ) in a single SOT523 package. Its internal resistor tolerances (±30% for R1, ±20% for R2/R1 ratio) ensure consistent switching behavior without manual resistor selection or layout area.
Is DDTC114YE-7 suitable for automotive applications?
The base DDTC114YE-7 is not AEC-Q101 qualified, but Diodes offers automotive-grade variants (e.g., DDTC114YE-7-TP) manufactured in IATF 16949 facilities and PPAP-capable. These meet AEC-Q101 stress testing requirements for temperature cycling, HTRB, and ESD.
How does the R1 ≠ R2 configuration improve performance over symmetric bias networks?
The 10 kΩ / 4.7 kΩ asymmetry lowers input capacitance and accelerates turn-off by providing a dedicated discharge path through R2, reducing storage time. This yields faster fall times and improved noise rejection compared to R1 = R2 designs, especially critical in high-speed digital switching.
DDTC114YE-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):
- 10 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 68 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 150 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
DDTC114YE-7 FAQ
1.How can I place an order for DDTC114YE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTC114YE-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 DDTC114YE-7 reliable?
The price and inventory of DDTC114YE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTC114YE-7 is usually 5 days.
3.What payment methods are accepted for DDTC114YE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC114YE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTC114YE-7?
DDTC114YE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTC114YE-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 DDTC114YE-7?
For technical support, including DDTC114YE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC114YE-7 requirements.
6.How does Aetrix verify that DDTC114YE-7 is sourced from the original manufacturer or authorized distributors?
All DDTC114YE-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 DDTC114YE-7 meets industry standards.
7.What is the process for return or replacement of DDTC114YE-7?
All DDTC114YE-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTC114YE-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 DDTC114YE-7 part is unused and in its original packaging.
Return procedure for DDTC114YE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTC114YE-7 Tags
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