onsemi BC337-016G

Overview

BC337-016G from onsemi is an NPN silicon general-purpose amplifier transistor in TO-92 package, rated for 45 V_CEO, 800 mA continuous collector current, and DC current gain (h_FE) of 100–250 at I_C = 100 mA, V_CE = 1.0 V - widely used in low-voltage switching and linear amplification stages of power supplies, LED drivers, and sensor interface circuits.

For engineers reviewing the BC337-016G datasheet, pinout, applications, or equivalent options, key selection criteria include verified h_FE binning (160 min), Pb-free TO-92 packaging, thermal resistance (R_JA = 200 °C/W), safe operating area up to 1000 mA at V_CE < 10 V, and compatibility with standard through-hole PCB assembly processes.

Technical Context

The BC337-016G operates as a medium-power NPN bipolar junction transistor optimized for linear amplification and saturated switching. Its h_FE binning (160–400) ensures consistent current gain across production lots, while V_CE(sat) ≤ 0.7 V at I_C = 500 mA / I_B = 50 mA supports efficient low-loss switching in 5–12 V systems.

Thermal design is constrained by R_JC = 83.3 °C/W and R_JA = 200 °C/W, requiring heatsinking only above ~300 mW dissipation in still air. The device exhibits f_T = 210 MHz and C_ob = 15 pF, enabling stable operation in audio-frequency and low-speed digital signal conditioning applications.

Key Specifications

Pinout & Package

BC337-016G uses the industry-standard TO-92 (Case 29, Style 17) plastic package with 3 leads: Collector (Pin 1), Base (Pin 2), Emitter (Pin 3), marked "7−16" on the package body. Lead spacing is 2.54 mm (0.100″), and overall dimensions are 4.45 × 5.20 × 4.19 mm (L × W × H).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC337-25G and MMBT3904LT1G, BC337-016G offers the best balance of guaranteed gain, current capability, and through-hole manufacturability - delivering 160–250 h_FE with 800 mA rating and TO-92 compatibility, making it ideal for cost-sensitive, medium-power discrete amplifier and switch designs where layout flexibility and thermal headroom matter.

Availability

BC337-016G is available at Aetrix Electronics and suitable for LED driver circuits, low-voltage power supply control, sensor signal amplification, and relay interface stages requiring stable component supply, long-term obsolescence management, and RoHS-compliant through-hole sourcing.

Supply support for BC337-016G 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The BC337-016G belongs to onsemi's legacy general-purpose transistor product line, designed specifically for cost-effective, reliable amplification and switching in industrial controls, power conversion, and signal conditioning applications where proven performance and long-lifecycle support are essential.

FAQ

What is the guaranteed DC current gain (h_FE) range for BC337-016G?

The BC337-016G is binned to guarantee h_FE ≥ 160 at I_C = 100 mA and V_CE = 1.0 V, with a typical maximum of 400 under those conditions. This binning ensures predictable base drive requirements across production lots, and the specification is validated per onsemi's BC337/D Rev. 5 datasheet - not extrapolated from other BC337 variants. BC337-016G maintains this gain performance across its full operating temperature range of −55°C to +150°C.

Is BC337-016G RoHS-compliant and lead-free?

Yes, BC337-016G is explicitly designated as Pb-free in onsemi's ordering information and package marking documentation. The "G" suffix indicates compliance with EU RoHS Directive 2011/65/EU, and the TO-92 package uses lead-free terminations qualified for standard lead-free reflow and wave soldering processes. This is confirmed in the "ORDERING INFORMATION" table on page 4 of the BC337/D datasheet, where BC337-016G is listed separately from non-Pb-free variants.

What is the maximum power dissipation for BC337-016G at room temperature?

At T_A = 25°C, BC337-016G has a total device dissipation rating of 625 mW with a derating factor of 5.0 mW/°C above 25°C. This value assumes standard PCB mounting (no heatsink) and is derived from the thermal resistance R_JA = 200 °C/W. Exceeding 625 mW risks junction temperature exceeding 150°C, triggering thermal shutdown or permanent degradation. For sustained operation above 300 mW, forced airflow or copper pour thermal relief is recommended.

Can BC337-016G be used in switching applications above 100 kHz?

BC337-016G has an f_T of 210 MHz and documented switching times (t_on/t_off) in the nanosecond range, but its usable switching frequency is limited by stored charge and minority carrier lifetime. In practice, BC337-016G performs reliably up to ~10 MHz in low-duty-cycle pulse applications, but for sustained PWM switching above 100 kHz (e.g., Class D audio or SMPS gate driving), MOSFETs or faster BJTs like the MMBT2222A are preferred. BC337-016G remains optimal for < 100 kHz logic-level switching and linear amplification.

How does BC337-016G differ from BC337-40G?

BC337-016G and BC337-40G share identical package, voltage, and current ratings, but differ in h_FE binning: BC337-016G guarantees h_FE ≥ 160, while BC337-40G guarantees ≥ 250. The higher-gain variant reduces base drive current but increases sensitivity to thermal drift and leakage - making BC337-016G more stable in temperature-varying environments and better suited for general-purpose switching where moderate gain consistency is prioritized over maximum amplification. Both are valid for BC337-016G replacement if circuit tolerances allow.