Nexperia USA Inc. PDTA123JQBZ
- Part No.:
- PDTA123JQBZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTA123JQBZ.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.1A 3DFN
- Quantity:
- Payment:

- Shipping:

Inventory:5,990
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Product details
Overview
PDTA123JQBZ from Nexperia is a 50 V, 100 mA PNP resistor-equipped transistor (RET) in a DFN1110D-3 (SOT8015) leadless package with side-wettable flanks. It integrates R1 = 2.2 kΩ and R2 = 47 kΩ bias resistors, delivers hFE = 100 at IC = −10 mA, VCE(sat) ≤ −100 mV, and supports digital switching in space-constrained consumer and industrial control boards.
For engineers reviewing the PDTA123JQBZ datasheet, PDTA123JQBZ pinout, PDTA123JQBZ application, or PDTA123JQBZ equivalent, this RET simplifies base-drive circuitry for low-power PNP load switching, replaces discrete BJT + two-resistor solutions, and enables AOI-compatible assembly in ultra-thin portable electronics.
Technical Context
This PNP RET uses an integrated silicon transistor with monolithically embedded R1 (base-input resistor) and R2 (base-emitter feedback resistor), forming a single-input, single-output active switch. Its fixed R2/R1 ratio of 21 ensures stable saturation under varying temperature and supply conditions.
The device operates with VI(off) = −0.6 V to −0.5 V and VI(on) = −1.1 V to −0.75 V at IC = −5 mA, enabling direct interface with 1.8 V/3.3 V logic outputs without level-shifting. Thermal resistance Rth(j-a) is 298 K/W on 70 µm FR4 PCB, supporting continuous 100 mA operation within ambient limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V industrial bus interfaces. |
| IO | −100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, or logic inputs. |
| hFE | 100 (typ.) at VCE = −5 V, IC = −10 mA - Predictable DC gain reduces design margin uncertainty in saturation-critical switching. |
| VCE(sat) | ≤ −100 mV - Low saturation voltage minimizes power loss and self-heating during high-duty-cycle operation. |
| R1 / R2 | 2.2 kΩ / 47 kΩ - Pre-biased resistor network eliminates external components and ensures consistent turn-on threshold. |
| Package | DFN1110D-3 (SOT8015) - 1.1 × 1.0 × 0.48 mm, 0.5 mm profile, side-wettable flanks for automated optical solder-joint inspection. |
Pinout & Package
DFN1110D-3 (SOT8015) is a 3-terminal, leadless, ultra-thin surface-mount package with side-wettable flanks for reliable reflow soldering and AOI compatibility. Dimensions: 1.1 mm × 1.0 mm × 0.48 mm body height; 0.65 mm pitch; 0.5 mm max overall height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Accepts logic-level input; internal R1 connects this pin to transistor base, enabling single-wire drive. |
| 2 | GND (emitter) | Emitter tied to system ground; serves as common reference for both input and output paths. |
| 3 | Output (collector) | Switched high-side output node; sinks up to 100 mA when input is asserted low relative to emitter. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | R1 = 2.2 kΩ + R2 = 47 kΩ eliminates need for two external resistors and associated layout area. |
| Low-profile packaging | 0.48 mm body height and side-wettable flanks support thin-form-factor designs and automated optical inspection. |
| Guaranteed saturation | VCE(sat) ≤ −100 mV at IC = −5 mA ensures reliable logic-level interfacing without marginal conduction. |
| Thermal robustness | Rth(j-a) = 298 K/W on 70 µm FR4 allows sustained 100 mA operation up to +85 °C ambient without derating. |
Applications
| LED Indicator Control | Microcontroller GPIO Expansion |
|---|---|
|
Use Scenario: Driving status LEDs from low-current MCU GPIO pins in battery-powered wearables. IC Role / Device Role / Timing Role: Acts as a PNP current sink amplifier, translating 3.3 V logic-low signal into ~10 mA LED current. Use Value: Eliminates need for discrete base resistor and pull-down, reducing BOM count by two parts per channel. |
Use Scenario: Expanding limited GPIO count to control multiple peripheral enable lines in IoT edge nodes. IC Role / Device Role / Timing Role: Functions as a logic-level translator and current buffer for 1.8 V/3.3 V enable signals to 5 V peripherals. Use Value: Enables direct connection without level shifters; VI(on) = −0.75 V ensures clean turn-on with standard CMOS outputs. |
| Power Rail Sequencing | Industrial Sensor Interface |
|
Use Scenario: Enabling auxiliary power rails only after main supply stabilizes in programmable logic controllers. IC Role / Device Role / Timing Role: Serves as a controlled high-side switch triggered by supervisor IC's open-drain reset output. Use Value: Built-in R2 provides defined pull-up behavior; eliminates risk of floating base during power-up transients. |
Use Scenario: Isolating analog sensor outputs from noisy digital domains in factory automation modules. IC Role / Device Role / Timing Role: Provides galvanic separation between sensor ground and microcontroller ground via emitter-follower configuration. Use Value: Low VCE(sat) preserves signal headroom; 50 V rating accommodates transient spikes on 24 V sensor buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC123JQB | NPN complement with identical R1/R2 values and package; requires inverted logic drive. | Suitable where load is connected to VCC instead of GND, enabling low-side switching topology. | Select when circuit architecture favors NPN sinking over PNP sourcing or when existing layout uses NPN RETs. |
| PDTA143XQB | R1 = 4.7 kΩ, R2 = 10 kΩ, R2/R1 = 2.13; lower input current requirement but reduced noise immunity. | Better suited for higher-VCC systems (>5 V) where tighter VI(on) tolerance is acceptable. | Choose when interfacing with 5 V logic or when lower base current draw is prioritized over noise margin. |
Compared with PDTC123JQB, PDTA123JQBZ offers native high-side switching without logic inversion; versus PDTA143XQB, it provides superior noise immunity due to higher R2/R1 ratio, making it more robust in electrically noisy industrial environments.
Availability
PDTA123JQBZ is available at Aetrix Electronics and suitable for LED indicator control, microcontroller GPIO expansion, power rail sequencing, and industrial sensor interface applications requiring stable component supply across production lifecycles.
Supply support for PDTA123JQBZ 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, and consumer markets.
PDTA123JQBZ belongs to the RET family designed specifically for digital switching in space- and cost-constrained applications, replacing discrete BJT-resistor combinations with guaranteed performance and AOI-ready packaging.
FAQ
What is the maximum continuous collector current for PDTA123JQBZ?
The maximum continuous collector current is −100 mA at Tamb ≤ 25 °C on a standard FR4 PCB with 70 µm copper. Derating applies above 25 °C per Fig. 1: at 85 °C ambient, maximum sustainable current drops to approximately −65 mA due to thermal limits.
Can PDTA123JQBZ replace BC857 in digital circuits?
Yes - PDTA123JQBZ is explicitly positioned as a cost-saving alternative to BC857 series in digital applications. Unlike BC857, it integrates base biasing resistors, eliminating two external components and reducing PCB area, pick-and-place steps, and potential solder defects.
What does the 'Z' suffix in PDTA123JQBZ indicate?
The 'Z' suffix denotes tape-and-reel packaging per JEDEC standard J-STD-020, with 10,000 units per reel. It does not affect electrical characteristics - all parameters match PDTA123JQB as specified in the Rev. 1 datasheet dated 28 September 2021.
Is PDTA123JQBZ suitable for automotive applications?
No - PDTA123JQBZ is not automotive-qualified. The datasheet states "Non-automotive qualified products" and specifies no AEC-Q101 testing or qualification. It is intended for industrial, consumer, and computing applications only.
PDTA123JQBZ 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
PDTA123JQBZ FAQ
1.How can I place an order for PDTA123JQBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA123JQBZ 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 PDTA123JQBZ reliable?
The price and inventory of PDTA123JQBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA123JQBZ is usually 5 days.
3.What payment methods are accepted for PDTA123JQBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA123JQBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA123JQBZ?
PDTA123JQBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA123JQBZ 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 PDTA123JQBZ?
For technical support, including PDTA123JQBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA123JQBZ requirements.
6.How does Aetrix verify that PDTA123JQBZ is sourced from the original manufacturer or authorized distributors?
All PDTA123JQBZ 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 PDTA123JQBZ meets industry standards.
7.What is the process for return or replacement of PDTA123JQBZ?
All PDTA123JQBZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTA123JQBZ, 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 PDTA123JQBZ part is unused and in its original packaging.
Return procedure for PDTA123JQBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA123JQBZ Tags

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MUN5211T1G
onsemi

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DTC043ZEBTL
Rohm Semiconductor

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DTC114EKAT146
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DDTD113ZC-7-F
Diodes Incorporated

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DRDNB16W-7
Diodes Incorporated

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PDTC114ET,215
Nexperia USA Inc.

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PDTC143ZT,215
Nexperia USA Inc.

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PDTC143ET,215
Nexperia USA Inc.

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PDTC143XT,215
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MMUN2211LT1G
onsemi

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PDTC144ET,215
Nexperia USA Inc.

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PDTC124ET,215
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