NXP Semiconductors PDTB113ZK,115

Overview

PDTB113ZK from NXP Semiconductors is a PNP resistor-equipped transistor (RET) designed for digital switching in automotive and industrial control circuits, featuring built-in bias resistors R1 = 1.0 kΩ and R2 = 10 kΩ, −50 V collector-emitter voltage rating, −500 mA DC output current capability, and ±10 % R2/R1 ratio tolerance.

For engineers reviewing the PDTB113ZK datasheet, PDTB113ZK pinout, PDTB113ZK application, or PDTB113ZK equivalent, this device serves as a cost-optimized, surface-mount alternative to discrete BJT + resistor networks in load switching, IC input control, and low-power logic interfacing where simplified layout and reduced component count are critical.

Technical Context

The PDTB113ZK integrates two precision thin-film resistors (R1 = 1.0 kΩ, R2 = 10 kΩ) directly into a PNP bipolar transistor die, enabling single-component base biasing without external components. Its R2/R1 ratio of 10:1 ensures stable saturation under varying temperature and process conditions.

Designed for operation with V_CE ≤ −50 V and I_O ≤ −500 mA, it delivers V_CE(sat) ≤ −0.3 V at I_C = −50 mA / I_B = −2.5 mA and supports input voltage ranges from −10 V (negative VI) to +5 V (positive VI), making it suitable for 3.3 V/5 V logic-level driven switching.

Key Specifications

Pinout & Package

SOT346 (SC-59A / TO-236) surface-mount package: 3-pin, compact footprint (3.0 × 1.7 mm), optimized for automated assembly and thermal performance up to 250 mW at T_amb ≤ 25 °C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.

Compared with BC807-40,115, the PDTB113ZK reduces component count and improves ESD immunity via integrated biasing; compared with PDTD113ZK, it provides PNP polarity essential for high-side or common-emitter sink configurations in 12 V/24 V systems.

Availability

PDTB113ZK is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC outputs, and consumer appliance control boards requiring stable component supply, long-term lifecycle support, and RoHS-compliant SMT packaging.

Supply support for PDTB113ZK 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 PDTB113Z series belongs to NXP's resistor-equipped transistor product line, engineered to replace discrete BJT-resistor combinations in cost-sensitive, high-volume digital switching applications while maintaining automotive-grade reliability and thermal performance.

FAQ

What is the maximum continuous collector current rating for PDTB113ZK?

The PDTB113ZK has a maximum DC output current (I_O) rating of −500 mA, verified under standard FR4 PCB mounting conditions with single-sided copper. This rating applies across its full operating ambient temperature range (−65 °C to +150 °C), with derating required above T_amb = 25 °C per the thermal resistance specification (R_th(j-a) = 500 K/W).

Does PDTB113ZK require external bias resistors for basic switching operation?

No, the PDTB113ZK does not require external bias resistors. It integrates R1 = 1.0 kΩ and R2 = 10 kΩ internally, forming a complete base bias network. This allows direct connection of a logic-level signal to Pin 1 (input/base), with Pin 2 (emitter) grounded and Pin 3 (collector) connected to the load, eliminating two discrete components per switch instance.

What is the pin configuration of PDTB113ZK in the SOT346 package?

The PDTB113ZK in SOT346 uses a 3-pin configuration: Pin 1 is the input (base), Pin 2 is GND (emitter), and Pin 3 is the output (collector). This differs from through-hole variants like SOT54 (Pin 1 = input, Pin 2 = collector, Pin 3 = emitter) and must be accounted for in PCB layout to avoid functional failure.

Can PDTB113ZK be used as a direct replacement for BC807-40 in existing designs?

The PDTB113ZK is positioned as a cost-saving alternative to the BC807 series in digital applications, but it is not a pin-to-pin or drop-in replacement. Unlike the BC807-40, the PDTB113ZK integrates bias resistors and uses different pinout (SOT346: 1=input, 2=emitter, 3=collector), requiring schematic and layout revision to accommodate the altered terminal roles and polarity.

What is the typical V_CE(sat) of PDTB113ZK under standard operating conditions?

The typical collector-emitter saturation voltage (V_CE(sat)) of PDTB113ZK is −0.3 V when operated at I_C = −50 mA and I_B = −2.5 mA, measured at T_amb = 25 °C. This low saturation voltage reduces conduction losses and thermal stress, supporting efficient operation in thermally constrained applications such as sealed appliance control modules.