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Nexperia USA Inc. PDTC124TM,315
- Part No.:
- PDTC124TM,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-101, SOT-883
- Datasheet:
-
PDTC124TM,315.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT883
- Quantity:
- Payment:
- Shipping:
Inventory:8,935
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Product details
Overview
PDTC124TM,315 from Nexperia is an NPN resistor-equipped transistor with integrated 22 kΩ base bias resistor (R1), open R2 configuration, 50 V VCEO, 100 mA IO, and SOT883 ultra-small surface-mount package. It functions as a single-stage digital switch in low-power interface circuits, replacing discrete BJT + two resistors in space-constrained consumer and wearable applications.
For engineers reviewing the PDTC124TM,315 datasheet, PDTC124TM,315 pinout, PDTC124TM,315 application, or PDTC124TM,315 equivalent, key selection criteria include built-in biasing topology, thermal resistance (500 K/W), DC current gain (hFE ≥100 at 1 mA), saturation voltage (≤150 mV), and SC-101 footprint compatibility for high-density PCB layouts.
Technical Context
This device integrates a monolithic NPN transistor with a precision 22 kΩ input bias resistor (R1) and no second resistor (R2 = open), enabling direct logic-level drive without external base components. Its architecture eliminates base resistor matching tolerances and reduces layout sensitivity to parasitic coupling.
Designed for reflow-only assembly on FR4 boards with 60 μm copper traces, it operates across −65 °C to +150 °C ambient and supports DC switching up to 100 mA with guaranteed VCEsat ≤150 mV at IC = 10 mA / IB = 0.5 mA - critical for low-loss signal inversion in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage under open-base conditions; enables use in 3.3 V/5 V logic rails with margin. |
| IO | 100 mA - Continuous DC output current rating; sufficient for driving LEDs, small relays, or logic inputs. |
| R1 | 22 kΩ (15.4–28.6 kΩ range) - Integrated base bias resistor; sets turn-on threshold and eliminates external component count. |
| hFE | ≥100 at VCE = 5 V, IC = 1 mA - Minimum DC current gain ensures reliable saturation with standard microcontroller GPIO drive. |
| VCEsat | ≤150 mV at IC = 10 mA, IB = 0.5 mA - Low saturation voltage minimizes power loss and self-heating in switching mode. |
| Rth(j-a) | 500 K/W - Junction-to-ambient thermal resistance under specified SOT883 mounting; defines maximum power dissipation at given ambient. |
Pinout & Package
SOT883 (SC-101) is a leadless ultra-small plastic package measuring 1.0 × 0.6 × 0.5 mm with three solder lands. It requires reflow-only assembly per JEDEC J-STD-020 and is optimized for high-density routing on compact PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Input node connected internally to R1; accepts logic-level voltage to enable transistor conduction. |
| 2 | Emiter | Reference terminal tied to ground or low-side return path; forms common emitter switching configuration. |
| 3 | Collector | Output node sourcing load current; connects to VCC or active-high load in typical switch implementation. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in 22 kΩ base bias resistor | Eliminates need for external RB, reducing bill-of-materials by one resistor and saving ~0.5 mm² board area. |
| Open R2 configuration | Supports standard single-resistor biasing for digital on/off control - no pull-down or feedback path required. |
| Low VCEsat (≤150 mV) | Reduces conduction loss below 1.5 mW at 10 mA load, extending battery life in portable devices. |
| SOT883 ultra-small footprint | Enables placement in <1.0 mm pitch layouts; compatible with automated pick-and-place for high-volume wearables manufacturing. |
Applications
| LED Indicator Driver | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving status LEDs in smartwatches and fitness trackers where board space is constrained and supply voltage is 3.3 V. IC Role / Device Role / Timing Role: Single-stage NPN switch turning LED on/off via MCU GPIO without external base resistor. Use Value: Reduces component count by one resistor per LED channel and maintains <150 mV drop for consistent brightness across battery discharge. |
Use Scenario: Extending limited GPIO count of ARM Cortex-M0+ MCUs in home automation sensors. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer between MCU output and peripheral enable lines. Use Value: Enables direct 3.3 V logic drive of 5 V peripherals with guaranteed hFE ≥100, avoiding level translator ICs. |
| Low-Power Inverter | Load Switch Interface |
|
Use Scenario: Signal inversion in always-on sensor nodes powered by coin cells. IC Role / Device Role / Timing Role: Active-low inverter stage converting MCU wake-up signals to active-high interrupt inputs. Use Value: Achieves propagation delay <100 ns and static current <100 nA (ICEO) - critical for multi-year battery operation. |
Use Scenario: Enabling/disabling power to RF modules or sensors in IoT edge nodes. IC Role / Device Role / Timing Role: Low-side load switch controlling ground path of downstream circuitry. Use Value: Supports 100 mA continuous load with thermal resistance matched to 0.6 mm² copper pour, preventing thermal shutdown. |
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 |
|---|---|---|---|
| PDTA124TM | PNP complement with identical SOT883 package, 22 kΩ R1, and matching VECO/IO ratings. | Used in high-side switching or complementary push-pull stages where source-current capability is required. | Select PDTA124TM when designing PNP-side drivers or dual-rail logic interfaces requiring matched bias networks. |
| PDTC114YM,315 | Same SOT883 package but with 10 kΩ R1 and higher hFE (min. 160), resulting in lower input current requirement. | Better suited for weak-drive sources (e.g., older 5 V TTL outputs or high-impedance analog switches). | Choose PDTC114YM,315 when driving from legacy logic families or when minimizing base current draw is prioritized over resistor value consistency. |
Compared with PDTA124TM and PDTC114YM,315, the PDTC124TM,315 offers standardized 22 kΩ biasing ideal for modern 3.3 V CMOS GPIOs, balanced gain-bandwidth trade-off, and proven thermal performance in ultra-thin wearable assemblies - making it optimal for new designs targeting cost, size, and manufacturability.
Availability
PDTC124TM,315 is available at Aetrix Electronics and suitable for LED indicator driver, microcontroller GPIO expander, and low-power inverter applications requiring stable component supply and long-term production continuity.
Supply support for PDTC124TM,315 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.
The PDTC124T series belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered to reduce component count and improve reliability in digital switching applications across portable and space-constrained electronics.
FAQ
What is the function of the open R2 terminal in PDTC124TM,315?
The R2 terminal is unconnected (open) inside the device, meaning only R1 (22 kΩ) is integrated between base and input. This configuration supports standard single-resistor biasing for digital on/off control - no external pull-down or feedback resistor is needed, simplifying circuit design and reducing part count.
Can PDTC124TM,315 be used in linear amplification applications?
No - PDTC124TM,315 is characterized and qualified exclusively for switching operation. Its datasheet specifies parameters like VCEsat, IO, and hFE under DC switching conditions, with no AC small-signal gain, bandwidth, or linearity data provided. It lacks specifications required for analog amplifier use.
Is reflow soldering mandatory for PDTC124TM,315?
Yes - the datasheet explicitly states "reflow soldering is the only recommended soldering method" for PDTC124TM,315 due to its SOT883 package construction and thermal limitations. Wave soldering or hand soldering risks damage to internal die attach and wire bonds, and violates Nexperia's assembly guidelines.
How does the SOT883 package affect thermal performance compared to SOT23?
PDTC124TM,315 in SOT883 has Rth(j-a) = 500 K/W, identical to SOT23 variants in the same series. However, its smaller footprint (1.0 × 0.6 mm vs. 2.9 × 1.3 mm) concentrates heat in less copper area - effective thermal management requires dedicated 60 μm copper strip lines and strict adherence to Nexperia's SOT883 mounting conditions.
PDTC124TM,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-101, SOT-883
- 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):
- 22 kOhms
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-883
PDTC124TM,315 FAQ
1.How can I place an order for PDTC124TM,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC124TM,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 PDTC124TM,315 reliable?
The price and inventory of PDTC124TM,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC124TM,315 is usually 5 days.
3.What payment methods are accepted for PDTC124TM,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC124TM,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC124TM,315?
PDTC124TM,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC124TM,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 PDTC124TM,315?
For technical support, including PDTC124TM,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC124TM,315 requirements.
6.How does Aetrix verify that PDTC124TM,315 is sourced from the original manufacturer or authorized distributors?
All PDTC124TM,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 PDTC124TM,315 meets industry standards.
7.What is the process for return or replacement of PDTC124TM,315?
All PDTC124TM,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC124TM,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 PDTC124TM,315 part is unused and in its original packaging.
Return procedure for PDTC124TM,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC124TM,315 Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
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DRDNB16W-7
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MMUN2211LT1G
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