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Nexperia USA Inc. PDTD123YT,215
- Part No.:
- PDTD123YT,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTD123YT,215.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:179,489
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Product details
Overview
PDTD123YT from NXP Semiconductors is a 500 mA, 50 V NPN resistor-equipped transistor (RET) in SOT23 package, featuring integrated bias resistors R1 = 2.2 kΩ and R2/R1 = 4.55, designed for digital switching in automotive and industrial control circuits where simplified base drive and reduced component count are critical.
For engineers reviewing the PDTD123YT datasheet, PDTD123YT pinout, PDTD123YT application, or PDTD123YT equivalent, this device serves as a cost-optimized, drop-in alternative to discrete BJT + resistor networks in IC input control and low-side load switching-especially where ±10% resistor ratio tolerance and 0.3 V VCEsat at 50 mA are design-critical.
Technical Context
This RET integrates two precision thin-film resistors (R1 = 2.2 kΩ, R2 = 10 kΩ) directly into an NPN silicon die, eliminating external bias components and enabling direct logic-level drive. Its internal topology routes the input signal through R1 to the base, with R2 connected between base and emitter to provide stable turn-off.
It operates with guaranteed DC current gain (hFE ≥ 70 at IC = 50 mA), supports up to 500 mA continuous collector current, and maintains VI(on) ≤ 1.4 V and VI(off) ≥ 0.4 V across −40 °C to +100 °C ambient-making it suitable for robust digital interface applications without external level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage under open-base condition; defines maximum load supply rail compatibility. |
| IO (DC) | 500 mA - Continuous output current capability; enables direct driving of medium-power loads like relays or LEDs. |
| R1 | 2.2 kΩ ±30% - Input bias resistor value; sets base current for logic-compatible turn-on with standard CMOS/TTL outputs. |
| R2/R1 | 4.55 ±10% - Precision resistor ratio ensuring reliable saturation and fast turn-off; reduces sensitivity to hFE variation. |
| VCEsat | 0.3 V max at IC = 50 mA, IB = 2.5 mA - Low saturation voltage minimizes power loss and self-heating during conduction. |
| VI(on) | 0.5–1.4 V - On-state input voltage range; ensures reliable activation with 1.8 V, 3.3 V, and 5 V logic families. |
| Ptot | 250 mW at Tamb ≤ 25 °C - Total power dissipation limit in SOT23 package; constrains thermal design for continuous operation. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package with 3 leads; compact footprint (3.0 × 1.4 × 1.1 mm), optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base via R1) | Logic-level input node; connects externally to controller output; internally tied to R1 top terminal. |
| 2 | GND (emitter) | Emitter reference and return path; common ground connection for both input and output sides. |
| 3 | Output (collector) | Switched load connection point; sinks current from VCC through external load to emitter (pin 2). |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors R1 and R2 | Eliminates need for two external resistors, reducing BOM count and layout area by ~3 components per switch node. |
| ±10 % R2/R1 tolerance | Ensures consistent turn-off behavior across production lots, improving batch-to-batch reliability in digital control paths. |
| 0.3 V VCEsat at 50 mA | Reduces conduction loss to <15 mW at 50 mA, supporting thermally constrained designs without heatsinking. |
| 500 mA DC output rating | Supports direct driving of solenoids, small relays, and LED strings without external driver stages. |
| SOT23 package compatibility | Enables use with standard pick-and-place equipment and reflow profiles; footprint matches industry-standard discrete transistors. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Output |
|---|---|
|
Use Scenario: Switching 12 V indicator lamps and small solenoids in door lock actuators and mirror controls. IC Role / Device Role / Timing Role: Low-side digital switch translating microcontroller GPIO signals into load current paths. Use Value: Built-in R1/R2 eliminates external resistor placement errors and improves ESD robustness on long harness-connected nodes. |
Use Scenario: Driving 24 V DC field devices such as proximity sensors and valve coils in modular I/O racks. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relay outputs in DIN-rail mounted controllers. Use Value: 500 mA rating and 50 V VCEO support direct interfacing with industrial 24 V supplies without additional protection circuitry. |
| Consumer Appliance Motor Control | Smart Home Sensor Interface |
|
Use Scenario: Enabling/disabling auxiliary fans and pump drivers in washing machines and HVAC systems. IC Role / Device Role / Timing Role: High-reliability load switch controlled by MCU PWM or on/off signals. Use Value: Stable hFE ≥ 70 and low VCEsat ensure predictable timing margins and minimal self-heating during burst-mode operation. |
Use Scenario: Level-shifting and isolation between battery-powered sensor nodes and 3.3 V MCU inputs. IC Role / Device Role / Timing Role: Digital input conditioner converting open-collector or mechanical switch signals into clean logic levels. Use Value: VI(on) ≤ 1.4 V and VI(off) ≥ 0.4 V enable reliable detection of weak pull-up/pull-down signals in ultra-low-power sleep modes. |
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 |
|---|---|---|---|
| BC817-40,215 | Discrete NPN BJT (no built-in resistors); hFE = 250–630; requires external R1/R2 network. | Higher gain but increased BOM count and layout complexity; less tolerant of trace parasitics in high-noise environments. | Select when precise hFE tuning or higher current gain is required, and board space allows for two extra resistors. |
| PDTA123ET,215 | PNP complement; same R1/R2 values and SOT23 package; VECO = 50 V, IO = −500 mA. | Used for high-side switching or complementary logic; not interchangeable without circuit redesign. | Select only for high-side or push-pull configurations where sourcing current from VCC is required. |
Compared with BC817-40,215, PDTD123YT reduces component count and improves noise immunity via monolithic resistor integration; compared with PDTA123ET,215, it provides complementary NPN functionality for low-side switching with identical footprint and biasing behavior.
Availability
PDTD123YT is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC outputs, and consumer appliance motor control requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for PDTD123YT 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 applications.
The PDTD123Y series belongs to NXP's resistor-equipped transistor product line, engineered specifically to replace discrete BJT-resistor combinations in digital interface and load-switching applications-reducing design risk and assembly cost.
FAQ
What is the maximum operating temperature for PDTD123YT?
The junction temperature (Tj) must not exceed 150 °C, and the ambient temperature (Tamb) range is −65 °C to +150 °C. In practice, with 250 mW total power dissipation and 500 K/W junction-to-ambient thermal resistance in free air, continuous operation above ~85 °C ambient requires PCB copper pour or airflow to maintain safe Tj.
Can PDTD123YT be used with 1.8 V logic inputs?
Yes. VI(on) ranges from 0.5 V to 1.4 V at IC = 20 mA, meaning it reliably turns on with 1.8 V logic outputs-even accounting for voltage drops across series resistors or PCB traces. VI(off) ≥ 0.4 V further ensures noise margin against false triggering.
Is the SOT23 package lead-free and RoHS compliant?
Yes. Per NXP's product documentation and packaging information, PDTD123YT is manufactured in Malaysia and conforms to RoHS Directive 2011/65/EU. The SOT23 package uses matte tin (Sn) lead finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) requirements.
How does the R2/R1 ratio affect switching behavior?
A fixed R2/R1 ratio of 4.55 ±10% ensures the base-emitter shunt resistor (R2) provides sufficient negative feedback to force rapid turn-off and suppress leakage-induced false triggering. This ratio stabilizes the effective input impedance and makes switching thresholds predictable across process and temperature variations.
PDTD123YT,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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,215 FAQ
1.How can I place an order for PDTD123YT,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD123YT,215 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,215 reliable?
The price and inventory of PDTD123YT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD123YT,215 is usually 5 days.
3.What payment methods are accepted for PDTD123YT,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD123YT,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD123YT,215?
PDTD123YT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD123YT,215 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,215?
For technical support, including PDTD123YT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD123YT,215 requirements.
6.How does Aetrix verify that PDTD123YT,215 is sourced from the original manufacturer or authorized distributors?
All PDTD123YT,215 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,215 meets industry standards.
7.What is the process for return or replacement of PDTD123YT,215?
All PDTD123YT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PDTD123YT,215, 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,215 part is unused and in its original packaging.
Return procedure for PDTD123YT,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTD123YT,215 Tags
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MUN5211T1G
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