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Nexperia USA Inc. PDTD123YT/APGR
- Part No.:
- PDTD123YT/APGR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTD123YT/APGR.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,767
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Product details
Overview
PDTD123YT/APGR from NXP Semiconductors is a 500 mA, 50 V NPN resistor-equipped transistor (RET) in SOT23 package with integrated bias resistors R1 = 2.2 kΩ and R2/R1 = 4.55, designed for digital switching in automotive and industrial control circuits where space-constrained PCBs require simplified driver-stage design.
For engineers reviewing the PDTD123YT/APGR datasheet, PDTD123YT/APGR pinout, PDTD123YT/APGR application, or PDTD123YT/APGR equivalent, key selection criteria include guaranteed 500 mA DC output current, ±10 % R2/R1 ratio tolerance, 0.3 V VCEsat at IC = 50 mA/IB = 2.5 mA, and compatibility with 3.3 V/5 V logic-level drive without external base resistors.
Technical Context
This RET integrates two precision thin-film resistors (R1 = 2.2 kΩ, R2 = 10 kΩ) directly into an NPN silicon die to form a monolithic digital switch. It eliminates discrete base-resistor networks while maintaining tight R2/R1 ratio control (4.1–5.0), enabling predictable saturation behavior across temperature.
The device operates as a single-stage logic-controlled switch with defined VI(on) (0.5–1.4 V) and VI(off) (0.4–1 V) thresholds, supporting direct interface to microcontroller GPIOs and ASIC outputs. Its 50 V VCEO rating and 250 mW power dissipation at Tamb ≤25 °C suit medium-power load switching in non-isolated applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V industrial bus and 12 V automotive systems with margin. |
| IO (DC) | 500 mA - Continuous collector current capability; supports driving relays, LEDs, small solenoids, or logic inputs. |
| R1 | 2.2 kΩ ±30 % - Input bias resistor value; sets base current for predictable turn-on with standard logic voltages. |
| R2/R1 | 4.55 ±10 % - Ratio tolerance ensures consistent forced beta (IC/IB ≈ 20) and stable saturation across production lots. |
| VCEsat | 0.3 V max at IC = 50 mA, IB = 2.5 mA - Low saturation voltage minimizes power loss and heat generation in high-duty-cycle switching. |
| VI(on) | 0.5–1.4 V - On-state input voltage range; guarantees reliable turn-on with 3.3 V CMOS and 5 V TTL outputs. |
| hFE | 70 min at VCE = 5 V, IC = 50 mA - DC current gain specification confirms sufficient amplification for digital switching mode operation. |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mount, 3-pin plastic package with standard footprint on FR4 PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level drive signal; no external resistor required. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common return path for load current. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., relay coil, LED anode) referenced to positive supply. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors R1 and R2 | Eliminates need for two external SMT resistors, reducing BOM count and PCB area by ≥2 components per switch channel. |
| ±10 % R2/R1 ratio tolerance | Ensures consistent forced beta (IC/IB ≈ 20) across temperature and process variation, improving batch-to-batch reliability. |
| 500 mA DC output current | Supports direct drive of 24 V/100 Ω loads (e.g., automotive indicator lamps, PLC I/O modules) without external buffer stages. |
| 0.3 V VCEsat at rated current | Reduces conduction loss to ≤15 mW at 50 mA, enabling higher efficiency and lower thermal rise in dense layouts. |
| SOT23 package compatibility | Enables automated pick-and-place assembly using standard 0805 footprint tooling; compatible with reflow profiles for lead-free soldering. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Output |
|---|---|
|
Use Scenario: Switching 12 V incandescent bulbs and LED indicators in door modules and lighting controllers. IC Role / Device Role / Timing Role: NPN digital switch providing logic-level controlled current sink for load grounding. Use Value: Built-in R1/R2 eliminates discrete resistor placement errors and reduces assembly cost by 0.02 USD/unit at volume. |
Use Scenario: Driving 24 V solenoid valves and relay coils in factory automation I/O cards. IC Role / Device Role / Timing Role: Medium-current load switch interfacing microcontroller GPIOs to industrial field devices. Use Value: 500 mA rating and 50 V VCEO allow direct connection to 24 V DC field buses without level-shifting or protection diodes. |
| Consumer Appliance Motor Control | Smart Home Sensor Interface |
|
Use Scenario: Enabling/disabling small DC brush motors (e.g., HVAC damper actuators, coffee grinder drives). IC Role / Device Role / Timing Role: Single-transistor H-bridge half-bridge driver stage for unidirectional motor control. Use Value: 0.3 V VCEsat limits self-heating during continuous 300 mA operation, extending lifetime in sealed enclosures. |
Use Scenario: Level-shifting and isolating sensor enable signals (e.g., PIR motion detectors, smoke alarm triggers) to MCU inputs. IC Role / Device Role / Timing Role: Logic-compatible input buffer providing noise-immune signal conditioning and current limiting. Use Value: VI(on)/VI(off) thresholds ensure clean transition between active/inactive states even with noisy 3.3 V supply rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN digital switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC817-40,215 | No built-in resistors; requires external R1/R2 network; hFE = 250–630 (wide spread); VCEsat = 0.7 V typical at same current. | Higher design complexity due to resistor selection and layout; less predictable saturation behavior under temperature drift. | Select when higher hFE or adjustable bias is needed; avoid if minimizing component count is critical. |
| DTC114YKAT146 | Same RET architecture but SOT346 package; R1 = 10 kΩ, R2 = 10 kΩ (R2/R1 = 1.0); IO = 100 mA max. | Limited to low-current loads (≤100 mA); unsuitable for 500 mA relay or motor drive applications. | Select only for low-power logic buffering; not a functional replacement for PDTD123YT/APGR's 500 mA capability. |
Compared with BC817-40 and DTC114YKAT146, PDTD123YT/APGR uniquely delivers 500 mA switching with factory-trimmed R2/R1 ratio in SOT23, enabling drop-in replacement for legacy discrete designs while cutting BOM and improving thermal consistency.
Availability
PDTD123YT/APGR is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output modules, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for PDTD123YT/APGR 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
This part belongs to NXP's Resistor-Equipped Transistor (RET) family, engineered to replace discrete BJT + resistor combinations in digital switching applications where board space, assembly cost, and performance consistency are critical.
FAQ
What is the maximum ambient temperature for continuous 500 mA operation?
The device is rated for 500 mA DC output current at Tamb ≤25 °C. At higher ambient temperatures, derating applies: maximum continuous current drops to ~350 mA at 70 °C and ~200 mA at 100 °C, based on its 250 mW total power dissipation limit and 500 K/W junction-to-ambient thermal resistance in SOT23.
Can PDTD123YT/APGR be used with 3.3 V microcontroller GPIOs?
Yes. Its VI(on) range (0.5–1.4 V) and VI(off) range (0.4–1 V) ensure robust turn-on with 3.3 V CMOS outputs, and its 2.2 kΩ R1 provides ~1.2 mA base current at 3.3 V, sufficient to drive 500 mA collector current with forced beta ≈ 20.
Is a flyback diode required when switching inductive loads?
Yes. Although VCEO is rated at 50 V, inductive kickback can exceed this rating. A reverse-biased Schottky diode (e.g., BAT54) must be placed across the load to clamp voltage spikes and prevent junction breakdown during turn-off.
How does the R2/R1 ratio affect switching performance?
The R2/R1 ratio of 4.55 sets the internal feedback path that stabilizes the transistor in saturation. This ratio determines the effective forced beta (IC/IB ≈ 20), ensuring low VCEsat and fast turn-off by extracting stored base charge through R2, reducing storage time by up to 40 % versus standard BJTs.
PDTD123YT/APGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDTD123Y
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 2.2 kOhms
- Resistor - Emitter Base (R2):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 70 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTD123YT/APGR FAQ
1.How can I place an order for PDTD123YT/APGR through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD123YT/APGR 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 PDTD123YT/APGR reliable?
The price and inventory of PDTD123YT/APGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD123YT/APGR is usually 5 days.
3.What payment methods are accepted for PDTD123YT/APGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD123YT/APGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD123YT/APGR?
PDTD123YT/APGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD123YT/APGR 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 PDTD123YT/APGR?
For technical support, including PDTD123YT/APGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD123YT/APGR requirements.
6.How does Aetrix verify that PDTD123YT/APGR is sourced from the original manufacturer or authorized distributors?
All PDTD123YT/APGR 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 PDTD123YT/APGR meets industry standards.
7.What is the process for return or replacement of PDTD123YT/APGR?
All PDTD123YT/APGR units undergo pre-shipment inspection (PSI). If there is an issue with PDTD123YT/APGR, 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 PDTD123YT/APGR part is unused and in its original packaging.
Return procedure for PDTD123YT/APGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTD123YT/APGR 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
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DRDNB16W-7
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PDTC114ET,215
Nexperia USA Inc.
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PDTC143ZT,215
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PDTC143ET,215
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PDTC143XT,215
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MMUN2211LT1G
onsemi
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PDTC124ET,215
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