Nexperia USA Inc. PDTC123JQBZ
- Part No.:
- PDTC123JQBZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC123JQBZ.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.1A 3DFN
- Quantity:
- Payment:

- Shipping:

Inventory:8,391
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Product details
Overview
PDTC123JQB from Nexperia is a 50 V, 100 mA NPN resistor-equipped transistor (RET) in a DFN1110D-3 (SOT8015) leadless SMD package with side-wettable flanks. It integrates 2.2 kΩ input bias resistor (R1) and 47 kΩ feedback resistor (R2), delivers hFE = 100 at IC = 10 mA, VCE(sat) ≤ 100 mV, and supports digital switching of IC inputs and low-power loads.
For engineers reviewing the PDTC123JQB datasheet, PDTC123JQB pinout, PDTC123JQB application, or PDTC123JQB equivalent, this device serves as a drop-in replacement for BC847-based digital interface circuits where reduced component count, AOI-compatible solder joints, and ultra-thin 0.48 mm profile are critical.
Technical Context
This RET implements a monolithic NPN transistor with two integrated silicon resistors forming a base bias network-R1 connects base to input, R2 connects base to emitter-enabling single-pin logic-level drive without external bias components. Its architecture eliminates discrete base resistors while maintaining predictable DC current gain and saturation behavior across −40 °C to +100 °C.
The DFN1110D-3 package features side-wettable flanks for automated optical inspection of solder joints, 0.65 mm pitch, and 1.1 × 1.0 × 0.48 mm body dimensions. Thermal resistance Rth(j-a) is 298 K/W on 70 µm FR4 PCB, supporting continuous 100 mA output under standard board conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V industrial control and 3.3/5 V logic interfaces with margin. |
| IO | 100 mA - Continuous DC output current capability; sufficient for driving LEDs, small relays, and logic gate inputs. |
| hFE | 100 (typ.) at VCE = 5 V, IC = 10 mA - Predictable current amplification simplifies drive circuit design without iterative resistor tuning. |
| VCE(sat) | ≤ 100 mV at IC = 5 mA, IB = 0.25 mA - Low saturation voltage minimizes power loss and self-heating in switching applications. |
| R1 / R2 | 2.2 kΩ / 47 kΩ - Fixed internal bias network reduces BOM count by two resistors and eliminates placement errors in high-volume assembly. |
| Tj(max) | 150 °C - Maximum junction temperature allows operation in sealed enclosures or near heat sources without derating below rated current. |
Pinout & Package
DFN1110D-3 (SOT8015) is an ultra-thin, leadless plastic package measuring 1.1 × 1.0 × 0.48 mm with side-wettable flanks for AOI-compatible reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Logic-level signal entry point; internally connected to R1; accepts 0.75–1.1 V typical turn-on voltage (VI(on)) for clean digital switching. |
| 2 | GND (emitter) | Emitter reference and thermal path; tied directly to PCB ground plane; enables low-inductance return for fast switching. |
| 3 | Output (collector) | Switched load connection; rated for 50 V and 100 mA; requires external pull-up or load to VCC for active-low operation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates need for two external base resistors, reducing PCB area and pick-and-place steps in automated assembly. |
| Side-wettable flanks | Enables 100% automated optical inspection of solder joints on bottom terminals-critical for automotive and medical manufacturing compliance. |
| Ultra-low profile | 0.48 mm max height supports ultra-thin end equipment such as wearables and slim IoT sensors where Z-height is constrained. |
| 100 mA output rating | Sustains full-rated current without external heatsinking on standard FR4, simplifying thermal design for space-constrained modules. |
Applications
| Industrial Control Inputs | LED Driver Interface |
|---|---|
Use Scenario: Isolating and conditioning 24 V PLC output signals before feeding into microcontroller GPIO pins. IC Role / Device Role: Level-shifting and current-limiting switch that translates industrial voltage levels to safe 3.3 V logic-compatible signals. Use Value: Eliminates need for separate voltage divider and series resistor, reducing bill-of-materials and layout complexity while maintaining noise immunity. |
Use Scenario: Driving indicator LEDs in battery-powered handheld devices with strict height and power constraints. IC Role / Device Role: Low-saturation switch controlling LED anode connection to supply rail in active-low configuration. Use Value: 100 mV VCE(sat) preserves battery life and enables use of smaller current-limiting resistors without compromising brightness. |
| Microcontroller GPIO Expander | Low-Power Sensor Interface |
Use Scenario: Adding discrete on/off control channels to MCUs with limited GPIO availability, e.g., enabling/disabling sensor power rails. IC Role / Device Role: Digital output buffer providing 100 mA sink capability per channel to manage peripheral power sequencing. Use Value: Integrated R1/R2 ensures consistent turn-on behavior across channels without calibration, improving batch-to-batch functional uniformity. |
Use Scenario: Enabling analog sensor biasing circuits only during measurement cycles to minimize system standby current. IC Role / Device Role: Precision-controlled switch activating sensor supply with minimal leakage (<180 µA IEBO) during off-state. Use Value: Sub-µA off-state current extends multi-year battery life in wireless environmental monitoring nodes. |
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 |
|---|---|---|---|
| PDTC143XQB | R1 = 4.7 kΩ, R2 = 10 kΩ, hFE = 50, VI(off) = 0.3 V (max) | Better noise immunity in noisy environments due to lower VI(off), but lower current gain reduces margin in marginal drive conditions. | Select when interfacing with high-noise industrial buses where false triggering must be minimized, and drive current is ≥20 mA. |
| BC847B | Discrete NPN BJT requiring external 10 kΩ base resistor; no integrated R2; hFE = 200–450; VCE(sat) = 200 mV (typ.) | Higher gain enables weaker drive sources, but adds two passives and increases assembly cost and footprint. | Choose when maximum DC gain is required and board space/cost allow for two additional 0402 resistors and manual tuning. |
Compared with PDTC143XQB, PDTC123JQB offers higher hFE and tighter VI(on) tolerance for reliable low-current switching, while BC847B provides greater flexibility at the cost of BOM expansion and process variability.
Availability
PDTC123JQB is available at Aetrix Electronics and suitable for industrial control inputs, LED driver interfaces, microcontroller GPIO expanders, and low-power sensor interfaces requiring stable component supply and long-term production continuity.
Supply support for PDTC123JQB 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 essential efficiency-enhancing components including logic, discretes, MOSFETs, and ESD protection devices.
PDTC123JQB belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically for digital switching applications where miniaturization, assembly yield, and BOM simplification are primary design goals.
FAQ
What is the maximum operating temperature for PDTC123JQB?
The PDTC123JQB 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 298 K/W on a 70 µm copper FR4 PCB, allowing full 100 mA current handling up to +85 °C ambient without derating.
Can PDTC123JQB replace BC847 in existing designs?
Yes-PDTC123JQB is a direct functional replacement for BC847 in digital switching roles. It integrates R1 and R2, eliminating two external resistors. Pin compatibility requires adapting the SOT23 footprint to DFN1110D-3 (SOT8015), and its lower VCE(sat) (100 mV vs. 200 mV) improves efficiency in high-duty-cycle applications.
Does PDTC123JQB support automatic optical inspection (AOI)?
Yes-its DFN1110D-3 package features side-wettable flanks explicitly designed for AOI. The exposed copper sidewalls enable reliable solder-joint inspection using standard machine vision systems, meeting IPC-A-610 Class 2 and Class 3 requirements for industrial and medical assemblies.
What is the off-state input leakage current of PDTC123JQB?
At VCE = 5 V and Tj = 25 °C, the emitter-base off-state leakage (IEBO) is 180 µA maximum. This value remains stable across temperature, ensuring predictable high-impedance behavior when used as a logic-level switch in battery-critical applications.
PDTC123JQBZ 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:
- PNP - 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:
- 100 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 180 MHz
- Power - Max:
- 340 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1110D-3
PDTC123JQBZ FAQ
1.How can I place an order for PDTC123JQBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC123JQBZ 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 PDTC123JQBZ reliable?
The price and inventory of PDTC123JQBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC123JQBZ is usually 5 days.
3.What payment methods are accepted for PDTC123JQBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC123JQBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC123JQBZ?
PDTC123JQBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC123JQBZ 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 PDTC123JQBZ?
For technical support, including PDTC123JQBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC123JQBZ requirements.
6.How does Aetrix verify that PDTC123JQBZ is sourced from the original manufacturer or authorized distributors?
All PDTC123JQBZ 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 PDTC123JQBZ meets industry standards.
7.What is the process for return or replacement of PDTC123JQBZ?
All PDTC123JQBZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC123JQBZ, 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 PDTC123JQBZ part is unused and in its original packaging.
Return procedure for PDTC123JQBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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