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Nexperia USA Inc. PDTC115EUF
- Part No.:
- PDTC115EUF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTC115EUF.pdf
- Description:
- TRANS PREBIAS NPN SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,646
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Product details
Overview
PDTC115EUF from NXP Semiconductors is an NPN resistor-equipped transistor (RET) with integrated 100 kΩ base bias resistors (R1 and R2), designed for simplified digital switching in low-power interface circuits. It supports DC output current up to 20 mA, collector-emitter voltage rating of 50 V, and operates across −65 °C to +150 °C ambient temperature - commonly used in logic-level signal translation and microcontroller I/O buffering.
For engineers reviewing the PDTC115EUF datasheet, PDTC115EUF pinout, PDTC115EUF application, or PDTC115EUF equivalent, this page delivers verified package mapping (SOT323), confirmed pin functions (base/emitter/collector), thermal resistance (625 K/W), input-on/off voltage thresholds, and direct alternatives with documented bias-resistor topology differences.
Technical Context
This RET integrates two precision 100 kΩ resistors (R1 = base-to-VIN, R2 = base-to-emitter) to eliminate external bias components while maintaining predictable turn-on behavior. Its hFE ≥ 80 at IC = 5 mA enables reliable saturation with minimal drive current.
The device uses a monolithic silicon NPN structure with built-in resistor network fabricated on the same die. Input-off voltage (Vi(off)) ≤ 0.5 V ensures robust noise immunity in TTL/CMOS-compatible applications, and VCE(sat) ≤ 150 mV at IC = 5 mA supports low-loss switching in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - maximum safe collector-emitter voltage before breakdown in open-base configuration |
| IO (DC) | 20 mA - continuous output current capability without thermal derating at Tamb ≤ 25 °C |
| R1 / R2 | 100 kΩ ±30% - matched internal bias resistors enabling single-resistor-free digital input drive |
| hFE | ≥80 at VCE = 5 V, IC = 5 mA - sufficient current gain for direct GPIO interfacing without external amplification |
| VCE(sat) | ≤150 mV at IC = 5 mA, IB = 0.25 mA - low conduction loss critical for power-sensitive level-shifting |
| Vi(on) | 1.5–3.0 V - guaranteed turn-on threshold compatible with 3.3 V and 5 V logic families |
| Ptot | 200 mW - maximum dissipation in SOT323 package under free-air conditions |
Pinout & Package
PDTC115EUF is housed in a plastic surface-mounted SOT323 (SC-70) package measuring 2.2 × 1.35 × 1.15 mm, optimized for high-density PCB layouts and reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Internal connection to R1 and R2 network | Input node where external signal applies; internally tied to both bias resistors |
| 2 (Emitter) | Emitting terminal of NPN transistor | Common reference point for R2; connects to ground or low-side return path |
| 3 (Collector) | Output current sink terminal | Drives load to ground when saturated; supports up to 20 mA DC output |
Key Features
| Feature | Design Value |
|---|---|
| Built-in dual bias resistors | Eliminates need for two external 100 kΩ resistors, reducing BOM count and layout area |
| Guaranteed Vi(off) ≤ 0.5 V | Ensures reliable cutoff under noisy or floating-input conditions without pull-downs |
| Low VCE(sat) ≤ 150 mV | Minimizes power loss and self-heating in 3.3 V/5 V digital switching applications |
| SOT323 footprint compatibility | Enables drop-in replacement for other SC-70 discrete transistors with identical land pattern |
| −65 °C to +150 °C operating range | Supports industrial and automotive under-hood environments without derating |
Applications
| Microcontroller I/O Buffering | LED Driver Interface |
|---|---|
Use Scenario: Driving 5 V LED indicators from 3.3 V GPIO pins with no external resistors. IC Role / Device Role / Timing Role: Digital switch translating logic-high to current-sink output. Use Value: Enables direct connection between MCU and LED with only one current-limiting resistor required, cutting component count by 2×. |
Use Scenario: Controlling status LEDs in space-constrained IoT sensor nodes. IC Role / Device Role / Timing Role: Low-power active-low driver activated by host processor. Use Value: SOT323 package fits 2.5 mm² board area; 200 mW Ptot allows sustained 15 mA LED current at ambient ≤ 60 °C. |
| Logic-Level Translation | Power Supply Enable Switch |
Use Scenario: Converting 3.3 V control signals to 5 V domain for legacy peripherals. IC Role / Device Role / Timing Role: Voltage-level shifter using saturated NPN operation. Use Value: Vi(on) = 1.5–3.0 V ensures activation from 3.3 V logic; VCE(sat) < 150 mV preserves output high margin. |
Use Scenario: Enabling/disabling 5 V LDO outputs via microcontroller GPIO. IC Role / Device Role / Timing Role: High-side enable switch controller (with external P-MOSFET) or low-side enable path. Use Value: 50 V VCEO safely isolates control logic from 5 V rail; 20 mA IO drives gate capacitance of common small-signal MOSFETs. |
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 |
|---|---|---|---|
| PDTC114EU | R1 = 100 kΩ, R2 = 10 kΩ (10:1 ratio vs. 1:1 in PDTC115EUF) | Higher base current gain enables faster switching but reduces noise margin on input | Select when driving heavier capacitive loads or requiring lower Vi(on) (~0.9 V) |
| MMBT3904LT1G | No built-in resistors; requires external RB and RBE; hFE = 100–300 | Greater design flexibility but increases component count and layout complexity | Choose when precise bias tuning or higher hFE consistency is required across temperature |
Compared with PDTC115EUF, PDTC114EU offers tighter input threshold control at the cost of reduced noise immunity, while MMBT3904LT1G provides full bias customization but demands additional passives and layout space - making PDTC115EUF optimal for fixed-ratio, space-constrained digital switching.
Availability
PDTC115EUF is available at Aetrix Electronics and suitable for microcontroller I/O buffering, LED driver interfaces, logic-level translation, and power supply enable switching requiring stable component supply and long-term industrial availability.
Supply support for PDTC115EUF 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.
PDTC115EUF belongs to NXP's resistor-equipped transistor (RET) product line, engineered specifically to reduce discrete component count in digital interface and switching circuits while maintaining robust parametric performance across wide temperature ranges.
FAQ
What is the exact pin configuration of PDTC115EUF in the SOT323 package?
PDTC115EUF uses standard SOT323 pinning: Pin 1 is Base (internally connected to both R1 and R2), Pin 2 is Emitter (connected to R2 ground node), and Pin 3 is Collector (output current sink). This matches JEDEC SC-70 outline and is confirmed in NXP's 2004 datasheet Figure 11.
Can PDTC115EUF replace a standard BJT like BC847 in existing designs?
Yes, but only if the circuit relies on external base biasing - PDTC115EUF integrates R1 and R2, so direct substitution requires removing those two resistors. Its Vi(on) and Vi(off) thresholds differ from bare BJTs, making it ideal for logic-driven switching rather than analog amplification.
Is reflow soldering mandatory for PDTC115EUF?
Yes - NXP explicitly states in Section 4 of the datasheet that reflow soldering is the *only recommended* method. Wave or hand soldering may exceed thermal limits due to its SOT323 package construction and internal resistor tolerances.
Does PDTC115EUF support 5 V tolerant input when used with 3.3 V microcontrollers?
No - its absolute maximum input voltage (VI) is +40 V, but its Vi(on) range (1.5–3.0 V) and Vi(off) (≤0.5 V) are specified for 3.3 V logic compatibility. For true 5 V-tolerant input, a series current-limiting resistor or level-shifter IC is required.
PDTC115EUF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 20 mA
- Voltage - Collector Emitter Breakdown (Max):
- -
- 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:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTC115EUF FAQ
1.How can I place an order for PDTC115EUF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC115EUF 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 PDTC115EUF reliable?
The price and inventory of PDTC115EUF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC115EUF is usually 5 days.
3.What payment methods are accepted for PDTC115EUF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC115EUF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC115EUF?
PDTC115EUF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC115EUF 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 PDTC115EUF?
For technical support, including PDTC115EUF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC115EUF requirements.
6.How does Aetrix verify that PDTC115EUF is sourced from the original manufacturer or authorized distributors?
All PDTC115EUF 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 PDTC115EUF meets industry standards.
7.What is the process for return or replacement of PDTC115EUF?
All PDTC115EUF units undergo pre-shipment inspection (PSI). If there is an issue with PDTC115EUF, 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 PDTC115EUF part is unused and in its original packaging.
Return procedure for PDTC115EUF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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