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Nexperia USA Inc. PDTC124EQCZ
- Part No.:
- PDTC124EQCZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC124EQCZ.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
PDTC124EQC from Nexperia is a 50 V, 100 mA NPN resistor-equipped transistor (RET) in a DFN1412D-3 (SOT8009) leadless SMD package with side-wettable flanks. It integrates 22 kΩ input and 22 kΩ base-emitter bias resistors, delivers 60 minimum DC current gain at 5 V VCE and 5 mA IC, and achieves ≤100 mV collector-emitter saturation voltage at IC = 10 mA / IB = 0.5 mA - used for digital switching of microcontroller GPIO-driven loads.
For engineers reviewing the PDTC124EQC datasheet, PDTC124EQC pinout, PDTC124EQC application, or PDTC124EQC equivalent, this part serves as a space-optimized, AOI-compatible replacement for discrete BJT + resistor networks in level-shifting, IC input control, and low-power load switching where board area and assembly cost are critical.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed on-die resistors: R1 (22 kΩ) between base and input, and R2 (22 kΩ) between base and emitter. The 1:1 R2/R1 ratio enables predictable turn-on behavior with VI(on) = 1.7 V typical at IC = 5 mA and VCE = 0.3 V.
Designed for operation up to 150 °C junction temperature, it features 0.48 mm profile height, FR4 PCB thermal resistance of 278 K/W (70 µm copper), and supports automatic optical inspection due to side-wettable flanks - enabling high-yield reflow in ultra-compact consumer and industrial modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum allowable collector-emitter voltage before breakdown; defines safe operating range for 3.3 V/5 V logic-controlled switching. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, or logic inputs without external current limiting. |
| hFE | 60 min at VCE = 5 V, IC = 5 mA - Ensures reliable saturation with low base drive; eliminates need for external base resistor calculation. |
| VCE(sat) | ≤100 mV at IC = 10 mA, IB = 0.5 mA - Minimizes conduction loss and self-heating in always-on or PWM-driven loads. |
| R1 / R2 | 22 kΩ / 22 kΩ - Matched internal bias network provides stable VI(on) = 1.7 V and VI(off) = 0.8 V, reducing sensitivity to supply rail variation. |
| Ptot | 450 mW at Tamb ≤ 25 °C on 70 µm FR4 - Supports sustained operation in thermally constrained layouts without forced cooling. |
Pinout & Package
DFN1412D-3 (SOT8009) is a 3-terminal, leadless, ultra-small plastic package measuring 1.4 × 1.2 × 0.48 mm with side-wettable flanks for automated solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base via R1) | Signal entry point; connects internally to R1 (22 kΩ), then to transistor base - accepts standard CMOS/TTL logic levels directly. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for both input and output paths. |
| 3 | Output (collector) | Switched high-side output node; sinks current from load to GND when active - compatible with open-collector interface requirements. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates 2 external components per switch channel, reducing BOM count and PCB footprint by >30% vs discrete BJT + R1 + R2. |
| Side-wettable flanks | Enables 100% automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield in high-volume SMT lines. |
| 0.48 mm package height | Supports ultra-thin end equipment (e.g., wearables, slim IoT sensors) where Z-height is constrained to <0.5 mm. |
| 100 mA continuous rating | Handles typical digital interface loads (LEDs, optocouplers, small MOSFET gates) without derating at ambient ≤85 °C. |
Applications
| Microcontroller GPIO Expansion | Low-Power LED Driver |
|---|---|
Use Scenario: Expanding limited MCU GPIO count to drive multiple peripheral enable lines or reset signals. IC Role / Device Role: Level-shifting and current amplification stage between 3.3 V GPIO and 5 V logic peripherals. Use Value: VI(on) = 1.7 V ensures full turn-on from 3.3 V outputs; 60 hFE guarantees saturation with ≤0.5 mA base drive. |
Use Scenario: Driving indicator or status LEDs in battery-powered sensors with strict power budget. IC Role / Device Role: Constant-current switch controlling LED anode connection to VCC. Use Value: VCE(sat) ≤100 mV minimizes voltage drop and power loss; 100 mA rating supports multi-LED strings at 20 mA each. |
| Logic-Level Translator | Optocoupler Input Stage |
Use Scenario: Converting 1.8 V FPGA I/O to 5 V TTL-compatible signals for legacy interface chips. IC Role / Device Role: Voltage-threshold translator using defined VI(on)/VI(off) thresholds (1.7 V / 0.8 V). Use Value: 1.7 V VI(on) exceeds 1.8 V logic high margin; 0.8 V VI(off) rejects sub-1 V noise, ensuring clean signal edge integrity. |
Use Scenario: Providing isolated input drive to 4N25/PC817 optocouplers in feedback loops of SMPS controllers. IC Role / Device Role: Current-limited switch sourcing ~5–10 mA into optocoupler LED anode. Use Value: Built-in R1/R2 sets precise LED current without external resistor; 100 mA rating accommodates peak surge during startup. |
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 |
|---|---|---|---|
| PDTC114EQC | R1 = R2 = 10 kΩ; hFE ≥30; VI(on) = 1.8 V typical | Better suited for higher-speed switching (fT = 230 MHz) but lower gain stability at low IC | Select when driving faster logic families or requiring tighter VI(on) tolerance across temperature. |
| BC847B | Discrete BJT (no built-in resistors); hFE = 200–450; requires external base resistor | Higher gain and lower VCE(sat) (≤65 mV), but increases component count and layout complexity | Choose only if maximum efficiency or analog linear operation is required - not for digital switching simplification. |
Compared with PDTC114EQC, PDTC124EQC offers higher DC gain (60 vs 30) and lower input current demand, improving noise immunity in low-drive systems; versus BC847B, it trades raw performance for BOM reduction and AOI compatibility - making it optimal for cost- and space-constrained digital interfaces.
Availability
PDTC124EQC is available at Aetrix Electronics and suitable for microcontroller GPIO expansion, low-power LED driving, logic-level translation, and optocoupler input staging requiring stable component supply and consistent DFN1412D-3 packaging.
Supply support for PDTC124EQC 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 semiconductor expert focused on high-volume, high-reliability essential semiconductors for automotive, industrial, mobile, and computing markets.
PDTC124EQC belongs to the RET family designed specifically to replace discrete BJT-resistor combinations in digital switching applications - prioritizing miniaturization, manufacturability, and design simplicity over analog linearity.
FAQ
What is the maximum operating temperature for PDTC124EQC?
The PDTC124EQC has a maximum junction temperature (Tj) of 150 °C and operates across an ambient temperature range of −55 °C to +150 °C. Its thermal resistance is 278 K/W on a standard FR4 PCB with 70 µm copper, allowing stable operation in compact enclosures without heatsinking when power dissipation remains below 450 mW.
Can PDTC124EQC replace BC847 in existing designs?
Yes - as a functional drop-in for digital switching roles, provided the circuit uses the BC847 in saturated mode with external base resistors. PDTC124EQC integrates those resistors (22 kΩ each), so remove external RB and verify VI(on) = 1.7 V meets your controller's logic-high threshold. Note: hFE is lower (60 vs 200+), but sufficient for switching.
Does PDTC124EQC support reflow soldering with standard profiles?
Yes - the DFN1412D-3 (SOT8009) package is qualified for lead-free reflow per JEDEC J-STD-020. Recommended stencil thickness is 0.1 mm, and the side-wettable flanks ensure reliable solder joint formation and AOI detectability under IPC-A-610 Class 2/3 conditions.
What is the meaning of the marking code '8M' on PDTC124EQC?
The top-side marking '8M' is the manufacturer-specific identifier for PDTC124EQC per Nexperia's ordering table. It is not a date code or lot number - it uniquely distinguishes this variant within the PDTC1xxEQC series and corresponds to R1 = R2 = 22 kΩ configuration.
PDTC124EQCZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 60 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 230 MHz
- Power - Max:
- 360 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
PDTC124EQCZ FAQ
1.How can I place an order for PDTC124EQCZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC124EQCZ 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 PDTC124EQCZ reliable?
The price and inventory of PDTC124EQCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC124EQCZ is usually 5 days.
3.What payment methods are accepted for PDTC124EQCZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC124EQCZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC124EQCZ?
PDTC124EQCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC124EQCZ 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 PDTC124EQCZ?
For technical support, including PDTC124EQCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC124EQCZ requirements.
6.How does Aetrix verify that PDTC124EQCZ is sourced from the original manufacturer or authorized distributors?
All PDTC124EQCZ 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 PDTC124EQCZ meets industry standards.
7.What is the process for return or replacement of PDTC124EQCZ?
All PDTC124EQCZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC124EQCZ, 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 PDTC124EQCZ part is unused and in its original packaging.
Return procedure for PDTC124EQCZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC124EQCZ Tags
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