Infineon Technologies BC857SH6827XTSA1

Overview

BC857SH6827XTSA1 from Nexperia is a dual PNP silicon small-signal transistor array in SOT363 (SC74) package, rated for V_CEO = 45 V, I_C = 100 mA, and h_FE = 200–630 at I_C = 2 mA. It features galvanically isolated transistors with matched characteristics, low V_CE(sat) (max 300 mV at I_C = 10 mA), and AEC-Q101 qualification for automotive driver stages.

For engineers reviewing the BC857SH6827XTSA1 datasheet, BC857SH6827XTSA1 pinout, BC857SH6827XTSA1 application, or BC857SH6827XTSA1 equivalent, key selection criteria include dual PNP matching tolerance, thermal resistance (R_thJS ≤ 140 K/W), f_T = 250 MHz, ESD robustness, and RoHS-compliant lead-free packaging.

Technical Context

This dual PNP array integrates two electrically isolated transistors sharing one thermally coupled die in a compact SOT363 package. Each transistor supports DC current gain up to 630 at 2 mA and maintains stable h_FE across I_C = 10 µA to 100 mA per the h_FE vs. I_C curve.

Its AC performance includes f_T = 250 MHz at I_C = 20 mA, C_cb = 1.5 pF at V_CB = 10 V, and noise figure F = 10 dB at 200 µA/5 V - enabling use in low-noise AF amplification and high-speed switching where inter-transistor isolation and gain consistency are critical.

Key Specifications

Pinout & Package

SOT363 (SC74) 6-pin surface-mount package with gull-wing leads, 0.65 mm pitch, and exposed thermal pad (not electrically connected). Pin 1 marked by dot or bevelled corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual PNP transistor array applications.

Compared with BC857B,315 and MBT3906DW1T1G, BC857SH6827XTSA1 uniquely combines AEC-Q101 qualification, tighter h_FE spread (200–630), and guaranteed galvanic isolation - making it optimal for safety-critical dual-channel automotive drivers and matched analog front-ends.

Availability

BC857SH6827XTSA1 is available at Aetrix Electronics and suitable for automotive door modules, industrial sensor interfaces, consumer audio preamps, and medical patient monitor front-ends requiring stable component supply and long-term lifecycle support.

Supply support for BC857SH6827XTSA1 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 semiconductor expert focused on essential efficiency, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.

BC857SH6827XTSA1 belongs to Nexperia's AEC-Q101-qualified bipolar transistor portfolio, engineered specifically for reliable dual-channel signal conditioning and switching in harsh-environment automotive electronics.

FAQ

What is the maximum junction temperature and how does it affect continuous operation?

The absolute maximum junction temperature is 150 °C. At ambient temperatures above 85 °C, derating is required: total power dissipation must be reduced linearly to zero at 118 °C case temperature (T_S). This ensures reliability in engine bay or enclosed industrial enclosures where airflow is limited.

Can BC857SH6827XTSA1 be used in linear amplifier configurations?

Yes - its h_FE stability across I_C = 10 µA to 100 mA, low V_CE(sat), and 250 MHz f_T support Class-A and AB audio amplification. However, thermal design must account for R_thJS ≤ 140 K/W to avoid exceeding T_j = 150 °C under sustained 200 mW dissipation.

How is pin 1 identified on the SOT363 package?

Pin 1 is marked by a molded dot or bevelled corner on the package body, located at the top-left corner when the marking side faces up and the leads point downward. The pinout follows standard SC74 orientation: 1=E1, 2=B1, 3=C2, 4=E2, 5=B2, 6=C1 - confirmed in Nexperia's package outline EHA07175.

Is this device suitable for high-reliability medical applications?

Yes - while not ISO 13485 certified, its AEC-Q101 qualification, 150 °C T_j, low I_CBO (≤5 nA at 150 °C), and Pb-free RoHS compliance meet key reliability and safety requirements for Class II medical devices such as patient monitors and diagnostic sensors.