Infineon Technologies BC848BE6433HTMA1

Overview

BC848BE6433HTMA1 from Nexperia is an NPN silicon general-purpose bipolar junction transistor (BJT) designed for audio-frequency input stages and driver circuits. It features a DC current gain (h_FE) of 200–450 at I_C = 2 mA, V_CE = 5 V; V_CEO = 45 V; V_CE(sat) ≤ 250 mV at I_C = 10 mA, I_B = 0.5 mA; and low noise (F = 1.2–4 dB) in the 1 kHz band - enabling high-fidelity signal amplification in compact consumer audio preamps.

For engineers reviewing the BC848BE6433HTMA1 datasheet, BC848BE6433HTMA1 pinout, BC848BE6433HTMA1 application, or BC848BE6433HTMA1 equivalent, key selection criteria include its AEC-Q101 qualification for automotive-grade reliability, SOT23 package compatibility with high-density PCB layouts, low V_CE(sat) for efficient switching in discrete logic interfaces, and h_FE group B grading for predictable gain matching in differential pairs.

Technical Context

This transistor operates as a linear amplifier or saturated switch in low-voltage analog and digital interface circuits. Its h_FE group B (200–450) ensures consistent current amplification across production lots, while the 250 MHz transition frequency (f_T) supports stable operation up to mid-audio frequencies without phase distortion.

The device exhibits low base-emitter saturation voltage (V_BE(sat) ≤ 900 mV at I_C = 100 mA, I_B = 5 mA) and tight thermal resistance (R_thJS ≤ 240 K/W), enabling reliable performance in thermally constrained spaces such as portable audio codecs and automotive body control modules.

Key Specifications

Pinout & Package

BC848BE6433HTMA1 is housed in a standard SOT23 plastic surface-mount package (3-pin, 1.3 mm × 2.9 mm × 0.95 mm), optimized for automated placement and reflow soldering in high-volume manufacturing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC848B,215 and MMBT3904LT1G, BC848BE6433HTMA1 delivers superior automotive reliability, tighter h_FE distribution for matched designs, and lower thermal resistance - making it optimal for new designs targeting automotive or high-reliability industrial use.

Availability

BC848BE6433HTMA1 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interfaces, and USB-C power management requiring stable component supply and long-term lifecycle assurance.

Supply support for BC848BE6433HTMA1 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 high-volume, high-reliability essential semiconductors - delivering robust discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.

BC848BE6433HTMA1 belongs to Nexperia's BC846–BC850 family of AEC-Q101-qualified general-purpose transistors, engineered specifically for automotive signal conditioning, discrete switching, and audio-frequency amplification where reliability and parametric consistency are critical.

FAQ

What is the maximum operating temperature for BC848BE6433HTMA1?

The junction temperature (T_j) rating is 150°C, and the storage temperature range is −65°C to +150°C. Derating begins at case temperatures above 71°C, where total power dissipation drops linearly to zero at 150°C - confirmed by the P_tot vs. T_S curve in the official Nexperia datasheet Rev. 03.

Is BC848BE6433HTMA1 pin-compatible with BC847B or BC849B?

Yes - all three share identical SOT23 pinout (Emitter-Base-Collector on pins 1-2-3) and mechanical footprint. However, BC848B has V_CEO = 45 V (vs. 65 V for BC847B and 30 V for BC849B), so substitution requires verification of voltage margin in the target circuit.

Does BC848BE6433HTMA1 support pulsed operation beyond its DC ratings?

Yes - it supports peak collector current (I_CM) of 200 mA for pulse widths ≤10 ms, with duty cycle ≤2%. The permissible pulse load curve (P_tot(max)/P_tot(DC) vs. t_p) confirms safe operation up to 5× DC power for short transients, provided average power remains within thermal limits.

How does the "E6433" suffix in BC848BE6433HTMA1 relate to packaging or testing?

The "E6433" is Nexperia's internal tape-and-reel marking code indicating 3,000-unit reels, Pb-free plating, and AEC-Q101 qualification. "HTMA1" denotes moisture sensitivity level 1 (MSL1), halogen-free material, and standard SOT23 packaging - fully documented in Nexperia's product change notice PCN-2019-001.