NXP Semiconductors BC547C,112

Overview

BC547C,112 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 420–800 at V_CE = 5 V and I_C = 2 mA. It serves as a low-voltage switching or linear amplification device in discrete analog and digital interface circuits, commonly used in power supply enable logic, LED drivers, and sensor signal conditioning stages.

For engineers reviewing the BC547C,112 datasheet, BC547C,112 pinout, BC547C,112 application, or BC547C,112 equivalent, this page delivers verified electrical parameters, thermal limits, AEC-Q101 qualification status, SOT23 package dimensions, and real-world use context - all aligned to the official Nexperia BC847 series product data sheet Rev. 9 (2014).

Technical Context

The BC547C,112 belongs to the BC847 family of silicon NPN transistors optimized for general-purpose amplification and switching in consumer, industrial, and automotive electronics. Its h_FE group C designation guarantees minimum DC current gain of 420 under standard test conditions (V_CE = 5 V, I_C = 2 mA), with typical transition frequency f_T of 100 MHz and low V_CE(sat) ≤ 200 mV at I_C = 10 mA / I_B = 0.5 mA.

It operates across –65 °C to +150 °C ambient temperature range, supports peak collector current up to 200 mA (tp ≤ 1 ms), and features AEC-Q101 qualification for automotive-grade reliability. Thermal resistance R_th(j-a) is 500 K/W when mounted on FR4 PCB with single-sided copper.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package: 3-lead, 1.3 mm × 2.9 mm × 1.0 mm body, tin-plated terminations, standard footprint compatible with reflow and wave soldering per Nexperia Fig 17/18.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC547C,112, BC847C,215 offers identical performance in a higher-volume packaging format, while MMBT3904LT1G trades AEC-Q101 qualification and guaranteed high h_FE for broader commercial availability - making BC547C,112 the preferred choice for automotive-qualified, gain-critical designs.

Availability

BC547C,112 is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial sensor interfaces, and consumer appliance power sequencing requiring stable component supply, consistent h_FE binning, and AEC-Q101 traceability.

Supply support for BC547C,112 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 high-volume production of discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.

The BC547C,112 belongs to Nexperia's BC847 series of general-purpose NPN transistors, engineered for reliable switching and amplification in cost-sensitive, high-reliability applications where consistent gain, thermal stability, and qualification matter.

FAQ

What is the exact package type of BC547C,112?

The BC547C,112 uses the SOT23 (TO-236AB) surface-mount plastic package, measuring 2.9 mm × 1.3 mm × 1.0 mm with standard pin pitch and tin-plated leads. This is confirmed in Table 1 and Figure 13 of the Nexperia BC847 series datasheet Rev. 9, and matches JEDEC TO-236AB and JEITA SC-59 outlines.

Is BC547C,112 AEC-Q101 qualified?

Yes, BC547C,112 is explicitly AEC-Q101 qualified per Section 8.1 of the official Nexperia BC847 series datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and unbiased highly accelerated stress testing (UHAST), validating its use in automotive environments.

What is the guaranteed h_FE range for BC547C,112 at V_CE = 5 V and I_C = 2 mA?

The BC547C,112 is h_FE Group C, guaranteeing a DC current gain range of 420 to 800 under those conditions (Table 2, Quick Reference Data). This is distinct from Group A (110–220) and Group B (200–450), ensuring higher and more consistent gain for precision biasing.

Can BC547C,112 replace BC847C in existing designs?

Yes - BC547C,112 is functionally and physically identical to BC847C in SOT23 package, sharing identical electrical specifications, pinout, thermal characteristics, and marking code "1G*" (Table 5). The BC547 prefix reflects legacy Philips/NXP naming; both are manufactured and specified by Nexperia as part of the same BC847_SER family.

What is the maximum allowable junction temperature for BC547C,112?

The absolute maximum junction temperature (T_j) for BC547C,112 is 150 °C, as stated in Table 6 (Limiting Values). Operation beyond this risks permanent degradation; derating curves in the datasheet require thermal design to maintain T_j ≤ 150 °C under worst-case ambient and power dissipation.