NXP Semiconductors BC547,116

Overview

BC547,116 from Nexperia is an NPN general-purpose bipolar junction transistor (BJT) in SOT23 surface-mount package, rated for 45 V V_CEO, 100 mA I_C, and DC current gain (h_FE) of 110–800 depending on group. It serves as a low-voltage switching and linear amplification device in consumer power management, sensor interface circuits, and LED driver stages.

For engineers reviewing the BC547,116 datasheet, BC547,116 pinout, BC547,116 application, or BC547,116 equivalent, this page delivers verified electrical parameters, thermal limits, AEC-Q101 qualification status, SOT23 footprint details, and real-world use context - all aligned to the official Nexperia BC847_SER product data sheet Rev. 9 (2014).

Technical Context

The BC547,116 operates as a discrete NPN BJT with base-controlled current amplification. Its V_CE(sat) ranges from 90 mV to 400 mV across operating conditions, and f_T is 100 MHz at V_CE = 5 V, I_C = 10 mA, enabling reliable small-signal amplification up to mid-VHF range.

It features three h_FE gain groups (A/B/C), with BC547,116 corresponding to Group B (200–450 at I_C = 2 mA, V_CE = 5 V). The device is qualified to AEC-Q101 and supports ambient temperatures from −65 °C to +150 °C, making it suitable for automotive cabin electronics and industrial control modules.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; body dimensions 3.0 × 1.4 × 1.1 mm; standard footprint per Figure 17 (reflow soldering) and Figure 18 (wave soldering) in BC847_SER Rev. 9.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN general-purpose transistor applications.

Compared with BC547,116, BC847B,215 offers identical performance with updated packaging logistics, while MMBT3904LT1G trades automotive reliability and guaranteed gain for broader commercial availability - making BC547,116 the preferred choice for AEC-Q101–compliant designs needing assured h_FE ≥200.

Availability

BC547,116 is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial sensor interfaces, consumer appliance power sequencing, and IoT node battery management requiring stable component supply and long-term lifecycle support.

Supply support for BC547,116 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

Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.

The BC547,116 belongs to the BC847 series - a family of AEC-Q101–qualified NPN transistors designed specifically for robust, high-reliability switching and amplification in harsh-environment electronics.

FAQ

What is the exact package type and footprint compatibility for BC547,116?

The BC547,116 uses the SOT23 (TO-236AB) surface-mount package with standardized 3-pin layout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. Its mechanical outline matches JEDEC TO-236AB and is fully compatible with reflow soldering footprints defined in Figure 17 of the BC847_SER Rev. 9 datasheet. This ensures drop-in replacement capability with other SOT23-packaged NPN transistors like BC847B or MMBT3904.

Is BC547,116 qualified for automotive applications?

Yes, BC547,116 is AEC-Q101 qualified per Section 8.1 of the BC847_SER datasheet. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per ANSI/ESDA-JEDEC JS-001, making it suitable for automotive cabin electronics, body control modules, and infotainment systems - though not for safety-critical powertrain or ADAS functions unless further system-level validation is performed.

What h_FE group does BC547,116 belong to, and how is it verified?

BC547,116 corresponds to h_FE Group B (200–450 at V_CE = 5 V, I_C = 2 mA), as confirmed in Table 2 (Quick reference data) and Table 8 (Characteristics) of the BC847_SER Rev. 9 datasheet. This grouping is laser-marked on the device body per Table 5 (Marking codes), where "1F*" indicates Group B - ensuring batch-level consistency without need for individual device sorting.

Can BC547,116 replace BC548 or BC549 in existing designs?

BC547,116 is not a direct replacement for BC548 or BC549 due to differences in maximum ratings: BC547,116 has V_CEO = 45 V and I_C = 100 mA, whereas BC548 specifies V_CEO = 30 V and BC549 specifies V_CEO = 20 V. Substitution requires verification of voltage headroom and gain matching - especially since BC549 typically has higher h_FE (420–800), which may affect bias stability in linear amplifier circuits.

What is the maximum allowable junction temperature and thermal resistance for BC547,116?

The BC547,116 has a maximum junction temperature (T_j) of 150 °C and a thermal resistance from junction to ambient (R_th(j-a)) of 500 K/W when mounted on FR4 PCB with single-sided copper (Table 7). At 25 °C ambient and 250 mW power dissipation, this yields a theoretical junction rise of 125 °C - meaning operation at full power is only viable below 25 °C ambient unless additional copper pour or airflow is applied.