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Diodes Incorporated DDTC114GCA-7
- Part No.:
- DDTC114GCA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDTC114GCA-7.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,252
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Product details
Overview
DDTC114GCA-7 from Diodes Incorporated is an NPN pre-biased small-signal transistor in SOT-23 package, featuring a single built-in 10 kΩ bias resistor (R2 only), 50 V VCEO, 100 mA IC(max), and hFE = 30 at 5 mA/5 V - used for level-shifting and digital switching in compact logic interface circuits.
For engineers reviewing the DDTC114GCA-7 datasheet, DDTC114GCA-7 pinout, DDTC114GCA-7 application, or DDTC114GCA-7 equivalent, this device serves as a space-optimized, resistor-equipped NPN switch with verified saturation voltage (VCE(sat) ≤ 0.3 V @ 10 mA/0.5 mA), thermal derating curve, and RoHS-compliant green molding compound.
Technical Context
This transistor integrates a monolithic epitaxial planar die with a dedicated R2 base-emitter bias resistor (10 kΩ ±30%), eliminating external bias components. It operates with VCEO = 50 V, VEBO = 5 V, and supports DC switching up to 100 mA while maintaining VCE(sat) ≤ 0.3 V under specified drive conditions.
The device is optimized for surface-mount logic interfacing where board area and component count are constrained. Its fT = 250 MHz (at VCE = 10 V, IE = –5 mA) confirms suitability for low-speed digital switching rather than RF amplification, and its JEDEC Level 1 moisture sensitivity enables standard reflow without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - maximum safe collector-emitter voltage before breakdown in common-emitter configuration |
| IC(max) | 100 mA - continuous collector current limit defining switching capacity in logic-level loads |
| hFE | 30 (min) @ 5 mA/5 V - guaranteed DC current gain enabling predictable base drive sizing |
| VCE(sat) | ≤0.3 V @ IC = 10 mA, IB = 0.5 mA - ensures low conduction loss and minimal power dissipation in saturated switch mode |
| R2 | 10 kΩ ±30% - integrated base-emitter pull-up resistor simplifying PCB layout and reducing BOM count |
| PD | 200 mW - maximum power dissipation at TA = 25°C, derated linearly above 25°C per 625 °C/W θJA |
| TJ/TSTG | –55°C to +150°C - operational and storage temperature range supporting industrial ambient environments |
Pinout & Package
Package: SOT-23 - ultra-small surface-mount plastic package (2.30–2.50 mm length, 1.20–1.40 mm width, 0.37–0.51 mm height), UL 94V-0 rated, lead-free matte tin plating over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter terminal | Reference node for current flow; connected to ground or low-side return path in switch configurations |
| 2 (Base) | Base terminal | Input control node; internally connected to R2 resistor top; accepts TTL/CMOS-compatible logic drive |
| 3 (Collector) | Collector terminal | Output node; sinks load current when biased; requires external pull-up or active load connection |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R2 bias resistor | 10 kΩ ±30% eliminates need for discrete base resistor, reducing footprint and assembly steps |
| Epitaxial planar construction | Ensures stable hFE and low leakage across temperature, critical for consistent digital switching behavior |
| RoHS-compliant "Green" compound | Halogen- and antimony-free molding compound (post-V9 date code), meeting environmental compliance mandates |
| JEDEC Level 1 moisture sensitivity | Enables standard reflow soldering without preconditioning, lowering manufacturing complexity |
Applications
| Microcontroller GPIO Interface | LED Driver Switch |
|---|---|
Use Scenario: Driving 5 V LED strings from 3.3 V microcontroller I/O pins with limited sink/source capability. IC Role / Device Role / Timing Role: NPN pre-biased switch providing level-shifted current sinking between MCU and LED anode supply. Use Value: Eliminates external base resistor; VCE(sat) ≤ 0.3 V ensures >90% LED forward voltage utilization at 20 mA. | Use Scenario: Controlling indicator LEDs on industrial HMI panels where board space and BOM count are constrained. IC Role / Device Role / Timing Role: Low-power digital switch turning on/off LED cathodes referenced to ground. Use Value: 100 mA IC(max) supports multi-LED parallel strings; SOT-23 footprint saves >60% area vs. SO-8 discrete solutions. |
| Logic-Level Translator | Load Switch for Sensor Bias |
Use Scenario: Converting 1.8 V logic outputs to 5 V-compatible signals for legacy peripherals. IC Role / Device Role / Timing Role: Single-transistor level shifter with fixed R2 bias enabling fast edge response and clean high/low states. Use Value: hFE ≥30 ensures full saturation with sub-100 µA base drive; fT = 250 MHz supports <100 ns rise/fall times. | Use Scenario: Enabling/disabling bias current to analog sensors (e.g., thermistors, RTDs) during sleep cycles. IC Role / Device Role / Timing Role: Low-leakage enable switch isolating sensor bias network from main supply rail. Use Value: IEBO ≤ 580 µA at VEB = 4 V minimizes standby current; –55°C to +150°C rating supports wide-temperature sensor operation. |
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 |
|---|---|---|---|
| NSBC114EPDXV6T1G | Same R2 = 10 kΩ, but includes dual ESD protection diodes (±8 kV HBM); slightly higher VCE(sat) (0.35 V typical) | Required in high-ESD environments (e.g., handheld interfaces); not needed for enclosed industrial boards | Select if system-level ESD testing exceeds IEC 61000-4-2 Level 3 |
| PDTC114ET,115 | Identical R2 and hFE spec, but uses different leadframe material (Cu instead of Alloy 42); same SOT-23 outline | No functional difference in switching performance; may differ in thermal expansion matching for high-reliability thermal cycling | Prefer for designs requiring Cu-based thermal management or specific alloy traceability |
Compared with NSBC114EPDXV6T1G and PDTC114ET,115, DDTC114GCA-7 offers the lowest cost-per-unit and widest qualification history in consumer and industrial logic interfaces, with identical R2 tolerance and proven long-term stability in tape-and-reel automated assembly.
Availability
DDTC114GCA-7 is available at Aetrix Electronics and suitable for microcontroller GPIO interface, LED driver switch, and logic-level translator applications requiring stable component supply, consistent parametric binning, and full traceability from Diodes Incorporated's Green Molding Compound production line.
Supply support for DDTC114GCA-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, application-optimized components for industrial, computing, and consumer markets.
This part belongs to the DDTC R2-Only Series - a family of pre-biased transistors engineered specifically for reducing component count in digital logic interfacing, with emphasis on consistent hFE, tight R2 tolerance, and green packaging compliance.
FAQ
What is the function of the internal R2 resistor in DDTC114GCA-7?
The internal R2 resistor (10 kΩ ±30%) connects between base and emitter, providing automatic biasing to ensure reliable turn-on with standard logic-level inputs. It eliminates the need for an external base resistor, reduces PCB area, and improves assembly yield by removing one discrete component.
Can DDTC114GCA-7 replace a standard NPN transistor like 2N3904 in all circuits?
No - DDTC114GCA-7 is not a drop-in replacement for 2N3904 because it lacks a separate base terminal connection; its internal R2 fixes the base-emitter bias path. It is intended only for saturated-switch applications where resistor-biased operation is acceptable, not for linear amplifier or variable-bias configurations.
What does the "CA" suffix indicate in DDTC114GCA-7?
The "CA" suffix denotes the SOT-23 package variant with green (halogen/antimony-free) molding compound and matte tin lead finish. It corresponds to Diodes Incorporated's qualified "Green" product line introduced post-2008 (date code V9 and later), meeting RoHS Directive 2011/65/EU Annex II requirements.
Is DDTC114GCA-7 suitable for automotive applications?
DDTC114GCA-7 is not AEC-Q101 qualified and is not recommended for automotive safety-critical systems. However, it is used in non-safety automotive subsystems such as infotainment UI indicators and cabin lighting controls where industrial-grade reliability suffices and formal automotive qualification is not mandated.
DDTC114GCA-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:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA (ICBO)
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DDTC114GCA-7 FAQ
1.How can I place an order for DDTC114GCA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTC114GCA-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 DDTC114GCA-7 reliable?
The price and inventory of DDTC114GCA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTC114GCA-7 is usually 5 days.
3.What payment methods are accepted for DDTC114GCA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC114GCA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTC114GCA-7?
DDTC114GCA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTC114GCA-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 DDTC114GCA-7?
For technical support, including DDTC114GCA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC114GCA-7 requirements.
6.How does Aetrix verify that DDTC114GCA-7 is sourced from the original manufacturer or authorized distributors?
All DDTC114GCA-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 DDTC114GCA-7 meets industry standards.
7.What is the process for return or replacement of DDTC114GCA-7?
All DDTC114GCA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTC114GCA-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 DDTC114GCA-7 part is unused and in its original packaging.
Return procedure for DDTC114GCA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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