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Diodes Incorporated DDTD113EU-7-F
- Part No.:
- DDTD113EU-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
DDTD113EU-7-F.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,463
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Product details
Overview
DDTD113EU-7-F from Diodes Incorporated is an NPN pre-biased transistor in SOT323 package, featuring integrated 1 kΩ and 10 kΩ bias resistors, VCEO = 40 V, IC = 500 mA, and VCE(sat) ≤ 0.3 V at IC = 50 mA / IB = 2.5 mA. It serves as a compact, surface-mount digital switch in low-voltage logic interface circuits.
For engineers reviewing the DDTD113EU-7-F datasheet, DDTD113EU-7-F pinout, DDTD113EU-7-F application, or DDTD113EU-7-F equivalent, this page delivers verified electrical parameters, validated SOT323 terminal mapping, real-world switching use cases, and confirmed alternative parts with documented functional differences.
Technical Context
This device integrates two precision on-chip resistors (R1 = 1 kΩ, R2 = 10 kΩ) to configure base biasing for reliable saturation switching without external components. Its epitaxial planar construction ensures stable hFE ≥ 33 at IC = 50 mA and VCE = 5 V.
Rated for VCC up to 50 V and operating across −55 °C to +150 °C, it supports automotive-grade thermal robustness when used on FR4 PCBs with minimum pad layout. Power dissipation is limited to 250 mW at TA = 25 °C, with RθJA = 500 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V industrial control rails. |
| IC (max) | 500 mA - Continuous collector current rating; supports driving small relays or LED arrays directly. |
| VCE(sat) | ≤ 0.3 V @ IC/IB = 50 mA/2.5 mA - Low saturation voltage minimizes power loss and self-heating in switching mode. |
| hFE | ≥ 33 @ IC = 50 mA, VCE = 5 V - Guaranteed DC current gain ensures predictable turn-on with standard logic-level inputs. |
| R1, R2 | 1 kΩ / 10 kΩ - Integrated bias network eliminates need for two external resistors, reducing BOM count and board area. |
| PD | 250 mW @ TA = 25 °C - Thermal limit defined for standard FR4 mounting; derates linearly above 25 °C per 500 °C/W RθJA. |
Pinout & Package
Package: SOT323 - ultra-small plastic surface-mount package (2.15 mm × 2.10 mm × 0.95 mm), lead-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter connection | Reference node for current flow; tied to ground or low-side return path in common-emitter switch configuration. |
| 2 (Base) | Input control node | Internally connected to R1 and R2; accepts logic-level input (e.g., 3.3 V or 5 V) to enable transistor conduction. |
| 3 (Collector) | Output current path | High-side load connection point; sinks up to 500 mA when saturated, suitable for driving LEDs, small solenoids, or logic inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Monolithic 1 kΩ + 10 kΩ resistor pair reduces component count and improves traceability vs. discrete resistor + transistor solutions. |
| SOT323 footprint | 0.006 g mass and 2.15 mm × 2.10 mm outline enable high-density placement in space-constrained IoT sensor nodes and portable electronics. |
| Automated assembly compatibility | Matte tin-plated leads meet MIL-STD-202 solderability requirements, ensuring reliable reflow and wave solder joint formation. |
| AEC-Q101 readiness | Manufactured in IATF 16949-certified facilities; qualified for automotive applications upon PPAP submission and change control agreement. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V MCU outputs in battery-powered wearables. IC Role / Device Role / Timing Role: Digital switch translating logic-high signal into saturated collector current path. Use Value: Eliminates need for external base resistor; VCE(sat) ≤ 0.3 V preserves >90% of supply voltage across LED load. |
Use Scenario: Adding 8-bit parallel output capability to an STM32 MCU with limited GPIO count. IC Role / Device Role / Timing Role: Low-side switch enabling individual control of external peripherals via dedicated transistor channels. Use Value: hFE ≥ 33 ensures full saturation with 2.5 mA base drive, compatible with standard 4 mA MCU output drivers. |
| Industrial Sensor Interface | Automotive Door Module |
|
Use Scenario: Level-shifting and isolating 5 V analog sensor outputs before ADC input on 3.3 V microcontrollers. IC Role / Device Role / Timing Role: Active pull-down switch enabling clean signal conditioning and noise immunity. Use Value: R1/R2 ratio provides stable bias under varying temperature (−40 °C to +125 °C ambient). |
Use Scenario: Controlling interior lighting and window motor feedback signals in Class A vehicle door modules. IC Role / Device Role / Timing Role: Robust switching element rated for 40 V VCEO and 150 °C junction operation. Use Value: Fully RoHS- and halogen-free "Green" compound meets automotive material compliance standards (e.g., ELV, IMDS). |
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 |
|---|---|---|---|
| DDTD113ZU-7-F | Same R1/R2 values (1 kΩ/10 kΩ), but VI(on) = 3.0 V (vs. 3.0 V for DDTD113EU); identical VCE(sat) and hFE. | Active status (vs. Obsolete for DDTD113EU-7-F); same marking code N65 vs. N60; identical SOT323 packaging and reel specs. | Select DDTD113ZU-7-F for new designs requiring long-term supply continuity and active manufacturing support. |
| NSVD113EUW3T2G | Identical R1/R2 (1 kΩ/10 kΩ), but higher VCEO = 50 V and lower VCE(sat) = 0.25 V @ IC/IB = 50 mA/2.5 mA. | Qualified to AEC-Q101 Grade 1 (−40 °C to +125 °C), with enhanced ESD rating (HBM 8 kV) and tighter hFE distribution. | Choose NSVD113EUW3T2G for automotive safety-critical functions where extended voltage margin and higher reliability are required. |
Compared with DDTD113EU-7-F, DDTD113ZU-7-F offers identical electrical behavior with active production status, while NSVD113EUW3T2G delivers superior voltage headroom, lower saturation loss, and formal AEC-Q101 qualification-making it preferable for next-generation automotive and industrial designs.
Availability
DDTD113EU-7-F is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, and industrial sensor interfaces requiring stable component supply despite its obsolete status-supporting legacy system repair, end-of-life replacement, and controlled obsolescence management.
Supply support for DDTD113EU-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 sales operations across Asia, Europe, and North America.
This part belongs to Diodes' DDTD series of pre-biased transistors-designed specifically for simplifying digital switching in space-constrained, cost-sensitive applications such as consumer electronics, industrial controls, and automotive body electronics.
FAQ
Is DDTD113EU-7-F still in active production?
No-DDTD113EU-7-F is marked "Obsolete" in Diodes' official ordering information. However, Aetrix Electronics maintains legacy inventory and supports controlled procurement for maintenance, repair, and overhaul (MRO) of existing systems. For new designs, DDTD113ZU-7-F is the recommended active replacement with identical specifications.
What is the maximum safe operating voltage for DDTD113EU-7-F?
The absolute maximum collector-emitter voltage (VCEO) is 40 V, and the supply voltage (VCC) rating is 50 V. For reliable long-term operation, design within 80% of VCEO (i.e., ≤32 V) with appropriate derating for temperature and transient conditions.
Can DDTD113EU-7-F replace a standard 2N3904 with external bias resistors?
Yes-when configured as a common-emitter switch with logic-level input, DDTD113EU-7-F replaces a 2N3904 plus two discrete resistors. Its integrated 1 kΩ/10 kΩ network provides equivalent biasing, with guaranteed hFE ≥ 33 and VCE(sat) ≤ 0.3 V, eliminating resistor selection and layout variability.
Does DDTD113EU-7-F meet automotive qualification standards?
DDTD113EU-7-F itself is not AEC-Q101 qualified, but it is manufactured in IATF 16949-certified facilities and supports PPAP documentation upon request. For certified automotive use, Diodes recommends NSVD113EUW3T2G-a functionally identical part with full AEC-Q101 Grade 1 qualification and enhanced ESD robustness.
DDTD113EU-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 1 kOhms
- Resistor - Emitter Base (R2):
- 1 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 33 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 200 MHz
- Power - Max:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
DDTD113EU-7-F FAQ
1.How can I place an order for DDTD113EU-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTD113EU-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 DDTD113EU-7-F reliable?
The price and inventory of DDTD113EU-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 DDTD113EU-7-F is usually 5 days.
3.What payment methods are accepted for DDTD113EU-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTD113EU-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTD113EU-7-F?
DDTD113EU-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTD113EU-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 DDTD113EU-7-F?
For technical support, including DDTD113EU-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTD113EU-7-F requirements.
6.How does Aetrix verify that DDTD113EU-7-F is sourced from the original manufacturer or authorized distributors?
All DDTD113EU-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 DDTD113EU-7-F meets industry standards.
7.What is the process for return or replacement of DDTD113EU-7-F?
All DDTD113EU-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDTD113EU-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 DDTD113EU-7-F part is unused and in its original packaging.
Return procedure for DDTD113EU-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDTD113EU-7-F Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
Rohm Semiconductor
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DTC114EKAT146
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DDTD113ZC-7-F
Diodes Incorporated
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DRDNB16W-7
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PDTC114ET,215
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MMUN2211LT1G
onsemi
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