Infineon Technologies BC80725E6327

Overview

BC807-25 from Infineon Technologies is a PNP silicon general-purpose audio-frequency transistor in SOT-23 package, rated for 45 V V_CEO, 500 mA I_C, and 330 mW P_tot at T_S ≤ 79 °C, with h_FE = 160–250 (IC = 100 mA, V_CE = 1 V), V_CE(sat) ≤ 0.7 V (IC = 500 mA, IB = 50 mA), and f_T = 200 MHz - used in low-voltage switching and linear amplification stages of automotive body control modules.

For engineers reviewing the BC807-25 datasheet, BC807-25 pinout, BC807-25 application, or BC807-25 equivalent, key selection criteria include guaranteed h_FE group 25 performance across temperature, low saturation voltage under high-current drive, AEC-Q101 qualification for automotive use, and complementary pairing with BC817-25 NPN transistors in push-pull output stages.

Technical Context

This PNP bipolar junction transistor operates in active, saturation, and cutoff regions with DC current gain specified per h_FE group (25) and validated over -40 °C to 150 °C junction temperature range. Its low V_CE(sat) and high I_C capability support efficient switching in 12 V automotive loads.

The device features thermally optimized SOT-23 packaging with R_thJS ≤ 215 K/W, enabling stable operation in space-constrained PCB layouts where thermal dissipation is limited. Complementary NPN pairing (BC817-25) allows matched gain and thermal tracking in differential or totem-pole configurations.

Key Specifications

Pinout & Package

SOT-23 plastic surface-mount package with gull-wing leads, 1.3 mm × 2.9 mm footprint, 1.1 mm height, and standard JEDEC MO-215 outline.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC807-25, BC807-25LT1G offers identical gain and pinout but reduced thermal robustness, while MMBT3906 trades gain consistency and saturation performance for broader availability and lower unit cost in non-automotive designs.

Availability

BC807-25 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and medical device power sequencing requiring stable component supply, AEC-Q101 compliance, and consistent h_FE binning.

Supply support for BC807-25 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949.

The BC807 series belongs to Infineon's discrete bipolar transistor product line, designed specifically for automotive-grade general-purpose switching and amplification where reliability, thermal stability, and gain consistency are critical.

FAQ

Is BC807-25 suitable for high-frequency RF applications?

No. Although its f_T is 200 MHz, the BC807-25 is characterized and qualified for audio-frequency and switching applications only. It lacks RF-specific parameters like noise figure, S-parameters, or gain flatness above 10 MHz, and its SOT-23 package introduces parasitic inductance unsuitable for impedance-matched RF circuits.

What is the maximum allowable base current for continuous operation?

The absolute maximum rated base current is 100 mA, but for reliable long-term operation at 25 °C ambient, the recommended continuous base current is ≤50 mA. This limit ensures junction temperature remains within 150 °C even with worst-case h_FE and thermal resistance, preventing secondary breakdown or parameter drift.

Can BC807-25 replace BC807-16 in an existing design?

Yes, with verification of gain-dependent biasing. The BC807-25 has higher minimum h_FE (160 vs. 100), which may increase collector current in fixed-base-resistor bias networks. Recalculate base resistor value to maintain target I_C; otherwise, saturation depth and thermal loading may exceed original design margins.

Does BC807-25 require a heatsink in typical SOT-23 mounting?

No heatsink is required for operation ≤330 mW at T_S ≤ 79 °C. With standard 1 oz copper pad (≥10 mm²) and no airflow, junction temperature stays below 150 °C up to ~250 mW. For sustained 500 mA switching at elevated ambient (>70 °C), reduce duty cycle or increase copper area rather than adding mechanical heatsinking.