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NXP Semiconductors PDTA115EK,115
- Part No.:
- PDTA115EK,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTA115EK,115.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.02A SMT3
- Quantity:
- Payment:
- Shipping:
Inventory:2,428
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Product details
Overview
PDTA115EK,115 from NXP Semiconductors is a PNP resistor-equipped transistor with integrated 100 kΩ base bias resistors (R1 and R2), designed for compact switching applications in space-constrained PCBs. It delivers −20 mA DC output current, supports −50 V collector-emitter voltage, and operates reliably across −65 °C to +150 °C ambient temperature - commonly used in logic-level interface circuits driving LEDs or small relays.
For engineers reviewing the PDTA115EK,115 datasheet, PDTA115EK,115 pinout, PDTA115EK,115 application, or PDTA115EK,115 equivalent, key selection criteria include its SOT346 (SC-59) package footprint, built-in dual-bias-resistor topology, guaranteed hFE ≥80 at −5 mA, and −150 mV VCEsat under standard drive conditions.
Technical Context
The PDTA115EK,115 integrates two precision 100 kΩ resistors (R1 = base-to-ground, R2 = base-to-emitter) to form a single-chip PNP digital transistor solution. Its internal structure eliminates external bias components while maintaining predictable turn-on/off thresholds: Vi(on) = −1.6 V typical and Vi(off) = −1.2 V typical at defined test currents.
This device functions as a saturated-switching element with fixed gain control - not a linear amplifier. Its thermal resistance Rth(j-a) is 500 K/W in SOT346, and it complies with IEC 60134 absolute maximum ratings, including −50 V VCBO and −10 V VEBO limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter voltage before breakdown; defines off-state blocking capability in high-side switch configurations. |
| IO (DC) | −20 mA: Continuous output current rating; sets upper limit for load-driving capacity in digital logic interfaces. |
| R1 / R2 | 100 kΩ ±30%: Integrated bias resistors enable direct microcontroller GPIO connection without external pull-up/down components. |
| hFE | ≥80 at VCE = −5 V, IC = −5 mA: Ensures sufficient current gain for reliable saturation with low base drive current (e.g., −0.25 mA). |
| VCEsat | ≤−150 mV at IC = −5 mA, IB = −0.25 mA: Low saturation voltage minimizes power loss and heat generation in switching mode. |
| Vi(on) | −1.6 V typical: Input voltage threshold at which transistor turns on; compatible with 3.3 V and 5 V logic families. |
| Tj max | +150 °C: Maximum junction temperature; supports operation in industrial environments with limited heatsinking. |
Pinout & Package
PDTA115EK,115 is housed in a plastic surface-mounted SOT346 (SC-59) package - 3-lead, JEDEC-compliant, 1.3 mm × 1.0 mm × 0.95 mm body size with gull-wing leads. Designed for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Internal connection to R1 (100 kΩ) and R2 (100 kΩ); accepts logic-level input signal directly from MCU or gate driver. |
| 2 | Emitter | Common reference node for bias network; connected to supply rail (VCC) in high-side switch configuration. |
| 3 | Collector | Output terminal sourcing current to load; connects to load cathode (e.g., LED anode tied to VCC) in typical application. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in dual bias resistors | Eliminates need for two external resistors, reducing BOM count and PCB area by ~2.5 mm² in SOT346 layout. |
| Guaranteed VCEsat ≤ −150 mV | Enables efficient switching of 20 mA loads with <0.3 mW conduction loss, critical for battery-powered sensor nodes. |
| Wide operating temperature range | −65 °C to +150 °C ambient rating supports deployment in automotive under-hood and industrial motor-control modules. |
| Standard SOT346 footprint | Ensures compatibility with existing pick-and-place equipment and reflow profiles used for TO-236AB packages. |
| Low input-off voltage | Vi(off) = −1.2 V typical ensures robust noise immunity against spurious negative transients on base line. |
Applications
| LED Driver Circuit | Microcontroller Interface |
|---|---|
Use Scenario: Driving common-anode indicator LEDs from 3.3 V GPIO pins in portable medical devices. IC Role / Device Role / Timing Role: High-side PNP switch controlling current path from VCC to LED cathode. Use Value: Built-in R1/R2 allows direct GPIO connection without external resistors; −150 mV VCEsat ensures >95% efficiency at 15 mA LED current. |
Use Scenario: Level-shifting 3.3 V logic signals to 5 V bus lines in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Digital translator providing inverted output with controlled rise/fall times. Use Value: Guaranteed hFE ≥80 ensures full saturation with ≤0.25 mA base current, enabling clean 5 V logic transitions. |
| Inverter Stage | Load Switch Control |
Use Scenario: Inverting TTL-compatible signals in legacy communication interfaces (e.g., RS-232 level conversion). IC Role / Device Role / Timing Role: Single-transistor inverter with fixed bias network and predictable propagation delay. Use Value: Vi(on)/Vi(off) specs ensure consistent switching thresholds across temperature, eliminating hysteresis design effort. |
Use Scenario: Enabling/disabling 12 V solenoid drivers via low-voltage MCU outputs in HVAC control panels. IC Role / Device Role / Timing Role: High-side enable switch isolating downstream 12 V circuitry from main supply. Use Value: −50 V VCEO rating provides 2× safety margin over 12 V rail; SOT346 package fits dense power management layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC115EK | NPN complement with identical R1/R2 values, SOT346 package, and matching pinout (1=base, 2=emitter, 3=collector). | Requires low-side switching topology instead of high-side; unsuitable where load must be referenced to ground. | Select PDTC115EK only when circuit architecture permits emitter-grounded load placement and inverted logic polarity is acceptable. |
| NSV11501T1G | ON Semiconductor PNP digital transistor with R1 = R2 = 100 kΩ, SOT-23 package, but higher VCEsat (−200 mV typ) and lower IO (−100 mA peak only). | Higher thermal resistance (500 K/W vs. PDTA115EK,115's 500 K/W) and different pinout (1=emitter, 2=base, 3=collector) requires PCB redesign. | Choose NSV11501T1G only if SOT-23 footprint is mandatory and higher saturation voltage is tolerable in the target application. |
Compared with PDTC115EK and NSV11501T1G, the PDTA115EK,115 offers optimal balance of high-side switching capability, industry-standard SOT346 layout compatibility, and lowest VCEsat in its resistor-equipped PNP class - making it preferred for space-constrained, low-loss interface designs.
Availability
PDTA115EK,115 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface modules, inverter stages, and load switch control requiring stable component supply across industrial and consumer electronics programs.
Supply support for PDTA115EK,115 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 PDTA115EK,115 belongs to NXP's resistor-equipped transistor family, engineered to simplify digital switching designs by integrating precision bias networks - targeting cost-sensitive, high-volume applications like appliance controls and sensor interfaces.
FAQ
What is the pin configuration of PDTA115EK,115?
The PDTA115EK,115 uses a standardized SOT346 pinout: Pin 1 is Base, Pin 2 is Emitter, and Pin 3 is Collector. This arrangement enables direct integration into high-side switch topologies where the emitter connects to VCC and the collector drives the load. The internal R1 and R2 resistors are connected between these terminals as specified in the NXP datasheet.
Does PDTA115EK,115 support 5 V logic interfacing?
Yes, PDTA115EK,115 supports 5 V logic interfacing: its Vi(on) is −1.6 V typical and Vi(off) is −1.2 V typical, ensuring reliable turn-on with 5 V-tolerant microcontroller outputs. When driven from a 5 V GPIO pulled low, the base sees ~−5 V relative to emitter, well within the −40 V negative input voltage limit specified in the datasheet.
What is the maximum continuous current rating for PDTA115EK,115?
The PDTA115EK,115 has a maximum DC output current (IO) rating of −20 mA, verified under Tamb ≤ 25 °C conditions. At higher ambient temperatures, derating applies per the thermal resistance (Rth(j-a) = 500 K/W) and total power dissipation limit of 250 mW for the SOT346 package.
Can PDTA115EK,115 replace discrete PNP transistors plus external resistors?
Yes, PDTA115EK,115 is specifically designed to replace a discrete PNP transistor plus two 100 kΩ bias resistors. Its integrated R1 and R2 eliminate layout complexity and reduce component count, while maintaining identical electrical behavior in switching applications - provided the original design used matched 100 kΩ resistors and operated within the PDTA115EK,115's voltage and current limits.
Is reflow soldering required for PDTA115EK,115?
Yes, reflow soldering is the only recommended soldering method for PDTA115EK,115, as stated in the NXP datasheet. Wave soldering or hand soldering may exceed thermal limits due to the SOT346 package's sensitivity. Standard lead-free reflow profiles compliant with JEDEC J-STD-020 are appropriate for mounting PDTA115EK,115.
PDTA115EK,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 20 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 100 kOhms
- Resistor - Emitter Base (R2):
- 100 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMT3; MPAK
PDTA115EK,115 FAQ
1.How can I place an order for PDTA115EK,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA115EK,115 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 PDTA115EK,115 reliable?
The price and inventory of PDTA115EK,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA115EK,115 is usually 5 days.
3.What payment methods are accepted for PDTA115EK,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA115EK,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA115EK,115?
PDTA115EK,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA115EK,115 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 PDTA115EK,115?
For technical support, including PDTA115EK,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA115EK,115 requirements.
6.How does Aetrix verify that PDTA115EK,115 is sourced from the original manufacturer or authorized distributors?
All PDTA115EK,115 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 PDTA115EK,115 meets industry standards.
7.What is the process for return or replacement of PDTA115EK,115?
All PDTA115EK,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA115EK,115, 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 PDTA115EK,115 part is unused and in its original packaging.
Return procedure for PDTA115EK,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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