PDTA123JU Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
Nexperia PDTA123JU is a PNP digital transistor with built-in 2.2 kΩ base resistor and 47 kΩ bias resistor, rated at 100 mA and 50 V, housed in a compact 3-pin UMT/SOT323 package for space-constrained switching circuits.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- PDTA123JU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated 2.2 kΩ input resistor and 47 kΩ bias resistor (ratio 0.047) eliminate external discrete resistors, reducing BOM count by 2 components per stage
- PNP configuration rated at 100 mA collector current and 50 V VCEO supports logic-level switch driving of LEDs, relays, and small loads directly from MCU output pins
- Compact SOT323 (UMT) 3-pin SMD package minimizes PCB area to under 1 mm² per transistor in dense handheld and wearable designs
Applications
The PDTA123JU is used in smartphones, wearables, and IoT sensor nodes to switch LEDs, buzzers, and low-current loads from 3.3 V or 5 V MCU GPIO pins without separate bias resistors. Its built-in 2.2 kΩ and 47 kΩ resistor network makes it a drop-in single-component solution for PNP switch stages in consumer electronics where board space and component count are tightly constrained.
Specifications
| Date Of Intro | 1997-09-16 |
| YTEOL | 7 |
| Additional Feature | BUILT IN BIAS RESISTANCE RATIO IS 21 |
| Collector Current-Max (IC) | 0.1A |
| Collector-Emitter Voltage-Max | 50V |
| Configuration | SINGLE WITH BUILT-IN RESISTOR |
| DC Current Gain-Min (hFE) | 100 |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | PNP |
| Reference Standard | IEC-60134 |
| Surface Mount | YES |
| Terminal Finish | TIN |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Transition Frequency-Nom (fT) | 180MHz |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What built-in resistors does the PDTA123JU include, and how do they simplify circuit design?
The PDTA123JU integrates a 2.2 kΩ base input resistor and a 47 kΩ base-to-emitter bias resistor in a single SOT323 package, giving a bias ratio of 0.047. This eliminates two discrete SMD resistors per transistor stage, saving PCB area and reducing pick-and-place operations in high-volume consumer and IoT PCB assembly lines.
What is the maximum collector current and collector-emitter voltage of the PDTA123JU, and what loads can it switch?
The PDTA123JU is rated for 100 mA maximum collector current and 50 V collector-emitter voltage. These ratings allow it to directly switch indicator LEDs drawing up to 20 mA, small signal relays with coils up to 50 mA, and piezo buzzers from a 3.3 V or 5 V logic supply, all with a minimum DC current gain (hFE) of 100 for reliable saturation switching.
When is the PDTA123JU a lower-component-count alternative to a discrete PNP transistor plus external resistors?
Any PNP switch stage using a standard transistor like BC857 requires at least 2 external resistors (a base series resistor and a pull-down to prevent false turn-on) that the PDTA123JU replaces with a single 3-pin UMT package. On a board with 50 such switch stages, substituting PDTA123JU saves 100 passive components and the associated 100 solder joints, improving assembly yield in portable devices with dense 0402-scale layouts.
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