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Nexperia USA Inc. PDTC124TMB,315
- Part No.:
- PDTC124TMB,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
PDTC124TMB,315.pdf
- Description:
- TRANS PREBIAS NPN
- Quantity:
- Payment:
- Shipping:
Inventory:80,000
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Product details
Overview
PDTC124TMB from Nexperia is an NPN resistor-equipped transistor (RET) in a leadless DFN1006B-3 (SOT883B) package, designed as a single-chip digital switch with integrated 22 kΩ base bias resistor (R1) and open R2. It delivers 100 mA output current, supports 50 V VCEO, and features AEC-Q101 qualification for automotive use in space-constrained mobile and peripheral driver circuits.
For engineers reviewing the PDTC124TMB datasheet, PDTC124TMB pinout, PDTC124TMB application, or PDTC124TMB equivalent, this device serves as a drop-in replacement for discrete BJT + resistor networks in low-current digital switching, IC input control, and automotive body electronics where ultra-small footprint and reduced assembly cost are critical.
Technical Context
This RET integrates a monolithic NPN transistor with a precision 22 kΩ input bias resistor (R1), eliminating external base resistors and simplifying PCB layout. Its open-circuit R2 configuration enables direct high-side or low-side switching without pull-down ambiguity.
Designed for operation at ambient temperatures from –65 °C to 150 °C, it maintains stable DC current gain (hFE ≥100 at IC = 1 mA) and low VCEsat (≤150 mV at IC = 10 mA / IB = 0.5 mA), ensuring reliable saturation in logic-level driven applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage under open-base conditions; enables use in 24 V automotive and 5–12 V logic systems. |
| IO | 100 mA - Continuous output current rating; sufficient for driving LEDs, small relays, and logic inputs without external buffering. |
| R1 | 22 kΩ (15.4–28.6 kΩ range) - Integrated base bias resistor; eliminates need for external component and reduces BOM count by one part. |
| VCEsat | ≤150 mV at IC = 10 mA - Ensures minimal power loss and heat generation during saturated switching in battery-powered devices. |
| fT | 230 MHz - Transition frequency confirms suitability for fast digital switching up to ~10–20 MHz signal edges. |
| Package | DFN1006B-3 (SOT883B) - 1.0 × 0.6 × 0.37 mm ultra-thin leadless package; compatible with high-density reflow assembly and 0201 footprint constraints. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors; validated for under-hood and body-control module use. |
Pinout & Package
DFN1006B-3 (SOT883B) is a 3-terminal, leadless plastic package with 0.37 mm profile and 0.4 mm pitch. Its compact dimensions (1.0 × 0.6 mm) support ultra-dense PCB layouts and automated placement in mobile and wearable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts TTL/CMOS logic-level drive (e.g., 3.3 V or 5 V) to activate the NPN switch. |
| 2 | GND (emitter) | Emitter tied to ground reference; provides return path for base and collector currents; serves as thermal and electrical reference plane. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode or IC input); requires external pull-up or supply connection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 bias network | Reduces bill-of-materials count by eliminating one external resistor and associated placement step. |
| Ultra-small DFN1006B-3 footprint | Enables routing in <1.0 mm² board area-ideal for wearables, TWS earbuds, and slim IoT sensors. |
| AEC-Q101 qualification | Validates reliability for automotive interior modules including door locks, seat controls, and lighting drivers. |
| Low VCEsat (≤150 mV) | Minimizes conduction loss and self-heating in always-on or pulsed duty-cycle applications. |
| 100 mA continuous IO | Supports direct drive of multiple logic inputs, status LEDs, or small-signal MOSFET gates without buffer stages. |
Applications
| Automotive Body Control | Mobile Peripheral Interface |
|---|---|
|
Use Scenario: Driving LED indicators and small solenoids in door modules and mirror controls. IC Role / Device Role / Timing Role: Digital output switch translating MCU GPIO signals into load current paths. Use Value: Eliminates discrete resistor placement and reduces PCB layer count in space-limited junction boxes. |
Use Scenario: Enabling/disabling USB-C accessory detection lines or SIM card power switches in smartphones. IC Role / Device Role / Timing Role: Level-shifted enable gate for 1.8 V/3.3 V interface isolation. Use Value: 0.37 mm height allows placement beneath camera modules or battery connectors without mechanical interference. |
| Industrial Sensor Node | Consumer Wearable Input |
|
Use Scenario: Controlling optocoupler inputs in isolated RS-485 transceiver enable circuitry. IC Role / Device Role / Timing Role: Logic-controlled current source for photodiode biasing or LED activation. Use Value: AEC-Q101 qualification ensures long-term stability in unregulated industrial ambient temperature swings. |
Use Scenario: Debouncing and conditioning push-button inputs on smartwatch side buttons. IC Role / Device Role / Timing Role: Schmitt-trigger-compatible digital input conditioner with built-in pull-up capability. Use Value: Integrated R1 enables clean edge transitions without external RC networks, saving 0.4 mm² per button. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTA124TMB | PNP complement with identical R1 = 22 kΩ and SOT883B package; VCEO = –50 V, IO = –100 mA. | Suitable for high-side switching where load connects to VCC and emitter drives ground-referenced nodes. | Select when sourcing current from supply rail is required instead of sinking to GND. |
| PDTC114YK,315 | Different R1 = 10 kΩ (typical), same SOT883B package; hFE min = 60 vs. 100; not AEC-Q101 qualified. | Limited to consumer-grade portable electronics; lacks automotive reliability validation and tighter gain spec. | Choose only for cost-sensitive non-automotive designs where lower hFE and no qualification are acceptable. |
Compared with PDTA124TMB, PDTC124TMB enables low-side switching with higher DC gain and automotive qualification; versus PDTC114YK, it trades higher R1 for improved noise immunity and guaranteed AEC-Q101 compliance in harsh environments.
Availability
PDTC124TMB is available at Aetrix Electronics and suitable for automotive body electronics, mobile peripheral interfaces, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PDTC124TMB 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
Nexperia is a global leader in high-performance discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
PDTC124TMB belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered to replace discrete BJT-resistor combinations in digital switching applications while reducing PCB area and assembly cost.
FAQ
Is PDTC124TMB suitable for 3.3 V microcontroller GPIO interfacing?
Yes. With its 22 kΩ R1 bias resistor, PDTC124TMB draws ~150 µA base current at 3.3 V, well within typical MCU GPIO sink/source limits (±20 mA). The resulting IC exceeds 15 mA at hFE ≥100, enabling robust saturation without external level-shifting.
What is the thermal resistance (Rth(j-a)) and how does it affect PCB layout?
Rth(j-a) is 500 K/W under standard FR4 conditions. To maintain Tj ≤125 °C at 100 mA and 150 mV VCEsat, ambient must stay below ~75 °C unless copper pour or thermal vias are added. Use ≥2 mm² 1-oz copper pad under pin 2 (emitter/GND) to improve heat dissipation.
Can PDTC124TMB replace a generic 2N3904 with external base resistor?
Yes, with design verification. PDTC124TMB replaces 2N3904 + 22 kΩ resistor in low-speed digital switching. Key differences include fixed R1 tolerance (±29%), no R2 connection, and stricter VCEO limit (50 V vs. 40 V for 2N3904), making it safer in 24 V systems but less flexible for custom biasing.
Does the "open" R2 terminal mean it is unconnected or internally floating?
R2 is physically absent-not connected internally. Pin 2 (emitter) and pin 1 (base) have no internal resistor between them; only R1 links pin 1 to the internal transistor base. This configuration avoids unintended emitter degeneration and supports standard NPN switch behavior with externally referenced emitter.
PDTC124TMB,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PDTC124TMB,315 FAQ
1.How can I place an order for PDTC124TMB,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC124TMB,315 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 PDTC124TMB,315 reliable?
The price and inventory of PDTC124TMB,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC124TMB,315 is usually 5 days.
3.What payment methods are accepted for PDTC124TMB,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC124TMB,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC124TMB,315?
PDTC124TMB,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC124TMB,315 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 PDTC124TMB,315?
For technical support, including PDTC124TMB,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC124TMB,315 requirements.
6.How does Aetrix verify that PDTC124TMB,315 is sourced from the original manufacturer or authorized distributors?
All PDTC124TMB,315 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 PDTC124TMB,315 meets industry standards.
7.What is the process for return or replacement of PDTC124TMB,315?
All PDTC124TMB,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC124TMB,315, 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 PDTC124TMB,315 part is unused and in its original packaging.
Return procedure for PDTC124TMB,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC124TMB,315 Tags
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