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Diodes Incorporated DDTC123JLP-7

Part No.:
DDTC123JLP-7
Manufacturer:
Diodes Incorporated
Category:
Single, Pre-Biased Bipolar Transistors
Package:
3-UFDFN
Datasheet:
AetrixDDTC123JLP-7.pdf
Description:
TRANS PREBIAS NPN 50V 0.1A 3DFN
Quantity:
Payment:
Payment
Shipping:
Shipping

Inventory:2,370

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Product details

Overview

DDTC123JLP-7 from Diodes Incorporated is an NPN pre-biased digital transistor in DFN1006 package with integrated R1=2.2kΩ and R2=47kΩ bias resistors, designed for low-power switching and level-shifting in space-constrained applications such as portable sensor interfaces and LED drivers. It delivers 100mA max collector current, 0.15V VCE(SAT) at 10mA/1mA drive, and operates across -55°C to +150°C.

For engineers reviewing the DDTC123JLP-7 datasheet, DDTC123JLP-7 pinout, DDTC123JLP-7 application, or DDTC123JLP-7 equivalent, key selection criteria include input-on voltage (1.1V), DC current gain (hFE = 50–180), resistor tolerance (±30%), thermal resistance (500°C/W), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This device integrates two precision resistors (R1 ≠ R2) directly into an epitaxial planar NPN transistor die, eliminating external bias components and reducing PCB footprint. Its internal resistor network sets base current for predictable saturation behavior without requiring external calculation.

The DFN1006-3 package features a fully exposed collector pad for thermal conduction, NiPdAu terminal finish for solderability, and J-STD-020 Level 1 moisture sensitivity-enabling high-yield reflow assembly in automated SMT lines.

Key Specifications

ParameterValue and Actual Design Meaning
VCEO50V - supports rail-to-rail switching up to 50V supply without breakdown
IC(MAX)100mA - suitable for driving small relays, LEDs, or logic-level MOSFET gates
VCE(SAT)0.15V @ 10mA/1mA - minimizes power loss and self-heating in saturated switch mode
hFE150 @ IC=10mA - ensures reliable turn-on margin with low base drive current
R1 / R22.2kΩ / 47kΩ ±30% - provides fixed current-limiting and stable bias ratio for consistent switching threshold
PD250mW @ TA=25°C - defines maximum continuous dissipation on standard FR4 PCB with minimal copper
TJ Range-55°C to +150°C - qualified for under-hood automotive, industrial control, and extended-temperature IoT nodes

Pinout & Package

Package: X1-DFN1006-3 - ultra-small 1.0mm × 0.6mm × 0.5mm leadless surface-mount package with exposed collector pad for thermal management and NiPdAu-plated terminals.

Pin/TerminalCircuit RoleDesign Meaning
1 (Collector)Main current output pathExposed metal pad - must be connected to ground or low-impedance heat sink for thermal performance
2 (Base)Control input nodeConnected internally to R1 and R2 - accepts TTL/CMOS logic-level signals directly
3 (Emitter)Current return pathInternally tied to R2 - forms common reference for bias network and load connection

Key Features

FeatureDesign Value
AEC-Q101 qualifiedValidated for automotive electronics per stress-test requirements including HTOL, TC, HAST, and ESD
Lead-free & Halogen-freeMeets RoHS 2 and JEDEC JS709C green standards (<900ppm Br/Cl, <1000ppm Sb)
Ultra-compact DFN1006Reduces board area by >70% vs. SOT-23 while maintaining thermal performance via exposed collector
Pre-biased R1≠R2 topologyEliminates need for external base resistors and enables single-pin logic control of switching function
Moisture Sensitivity Level 1Zero bake requirement before reflow - compatible with standard SMT assembly without dry-pack handling

Applications

Automotive Cabin SensorsPortable Medical Wearables

Use Scenario: Signal conditioning and wake-up switching for MEMS accelerometers and ambient light sensors in vehicle infotainment modules.

IC Role / Device Role / Timing Role: Digital switch enabling/disabling sensor power rails based on CAN bus activity detection.

Use Value: Low VCE(SAT) and wide temperature range ensure stable operation during engine-off battery drain conditions (-40°C to +85°C ambient).

Use Scenario: Driving low-current OLED displays and piezoelectric buzzers in FDA-cleared wearable health monitors.

IC Role / Device Role / Timing Role: Logic-level interface between microcontroller GPIO and display backlight circuitry.

Use Value: Integrated bias resistors reduce BOM count and eliminate layout sensitivity to parasitic capacitance in high-density flex PCBs.

Industrial PLC I/O ModulesSmart Home Motion Detectors

Use Scenario: Isolating and amplifying 24V DC field sensor inputs into 3.3V logic-compatible signals for ARM-based controllers.

IC Role / Device Role / Timing Role: Input stage translator converting industrial voltage levels to safe MCU input thresholds.

Use Value: 50V VCEO rating allows direct interfacing with 24V industrial buses without external clamping diodes.

Use Scenario: Controlling PIR sensor signal chain enable/disable in battery-powered occupancy detectors.

IC Role / Device Role / Timing Role: Power-gating switch for analog front-end amplifiers and ADC references.

Use Value: 0.5µA cutoff leakage ensures sub-1µA standby current, extending coin-cell battery life beyond 2 years.

Equivalent & Alternatives

The following parts are listed as comparable options for similar pre-biased NPN transistor applications.

Alternative PartTechnical DifferenceApplication DifferenceSelection Advice
DDTC114YLP-7R1=10kΩ, R2=47kΩ; higher VI(ON)=1.5V; lower IC(MAX)=70mABetter suited for higher-voltage logic interfaces (up to 40V input), but reduced current driveSelect when interfacing with 3.3V/5V logic with tighter VI(OFF) margin requirements
DDTC143ZLP-7R1=4.7kΩ, R2=47kΩ; VI(ON)=1.1V same; IO=100mA same; wider input voltage range (-5V to +30V)Supports higher-voltage industrial control signals while retaining same saturation performanceSelect for 24V PLC input stages where input transient immunity is critical

Compared with DDTC123JLP-7, DDTC114YLP-7 trades current capability for higher input voltage tolerance, while DDTC143ZLP-7 extends input voltage range without sacrificing drive strength-making the latter optimal for mixed-voltage industrial systems.

Availability

DDTC123JLP-7 is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical wearables, industrial PLC I/O modules, and smart home motion detectors requiring stable component supply across extended temperature ranges and high-reliability manufacturing.

Supply support for DDTC123JLP-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-performance, high-reliability components for automotive, industrial, and consumer markets.

The DDTCxxxxLP series belongs to Diodes' pre-biased transistor product line, engineered specifically to replace discrete transistor + resistor combinations in compact, high-volume applications demanding AEC-Q101 compliance and zero-bake assembly.

FAQ

What is the marking code for DDTC123JLP-7?

The top-side marking for DDTC123JLP-7 is "N0", as specified in the Diodes Incorporated ordering information table. This code uniquely identifies the R1=2.2kΩ/R2=47kΩ variant within the DDTCxxxxLP family and appears adjacent to the orientation dot indicating the collector side of the DFN1006 package.

Can DDTC123JLP-7 replace a standard NPN transistor like BC847?

Yes, but only when the application uses fixed-base biasing and benefits from integrated resistors. Unlike BC847, DDTC123JLP-7 has no base terminal accessible externally-it functions as a 3-terminal switch with internal R1/R2. Direct substitution requires verifying that the existing circuit does not rely on adjustable base current or external bias networks.

Is DDTC123JLP-7 suitable for PWM-driven LED dimming?

Yes, it supports PWM frequencies up to 250MHz (fT) and exhibits fast switching with typical tON/tOFF in the nanosecond range. Its low VCE(SAT) and stable hFE across temperature make it effective for constant-current LED driver stages operating at 1–10kHz PWM, provided peak collector current remains ≤100mA.

Does DDTC123JLP-7 require a heatsink in standard PCB layouts?

No external heatsink is required for typical operation. With RθJA = 500°C/W on a 1oz copper FR4 board and PD = 250mW max, junction temperature rise stays below 125°C at 25°C ambient-even at full 100mA load. Thermal performance improves significantly if the exposed collector pad is connected to ≥10mm² of inner-layer copper pour.

DDTC123JLP-7 Specifications

Product attributes
Attribute value
Manufacturer:
Diodes Incorporated
Series:
DDTCxxxxLP (R1#R2 Series)
Package/Case:
3-UFDFN
Packaging:
Tape & Reel (TR)
Product Status:
Active
Transistor Type:
NPN - Pre-Biased
Current - Collector (Ic) (Max):
100 mA
Voltage - Collector Emitter Breakdown (Max):
50 V
Resistor - Base (R1):
2.2 kOhms
Resistor - Emitter Base (R2):
47 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce:
180 @ 50mA, 5V
Vce Saturation (Max) @ Ib, Ic:
200mV @ 5mA, 50mA
Current - Collector Cutoff (Max):
500nA
Frequency - Transition:
250 MHz
Power - Max:
250 mW
Grade:
-
Qualification:
-
Mounting Type:
Surface Mount
Supplier Device Package:
X1-DFN1006-3

DDTC123JLP-7 FAQ

1.How can I place an order for DDTC123JLP-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DDTC123JLP-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 DDTC123JLP-7 reliable?

The price and inventory of DDTC123JLP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTC123JLP-7 is usually 5 days.

3.What payment methods are accepted for DDTC123JLP-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTC123JLP-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DDTC123JLP-7?

DDTC123JLP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DDTC123JLP-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 DDTC123JLP-7?

For technical support, including DDTC123JLP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTC123JLP-7 requirements.

6.How does Aetrix verify that DDTC123JLP-7 is sourced from the original manufacturer or authorized distributors?

All DDTC123JLP-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 DDTC123JLP-7 meets industry standards.

7.What is the process for return or replacement of DDTC123JLP-7?

All DDTC123JLP-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTC123JLP-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 DDTC123JLP-7 part is unused and in its original packaging.

Return procedure for DDTC123JLP-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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