Diodes Incorporated BC847BV-7

Overview

BC847BV-7 from Diodes Incorporated is an NPN dual small-signal surface-mount transistor in SOT-563 package, rated for 45 V V_CEO, 100 mA I_C, and 150 mW P_D, used in low-power switching and amplification circuits in portable audio and sensor interface modules.

For engineers reviewing the BC847BV-7 datasheet, BC847BV-7 pinout, BC847BV-7 application, or BC847BV-7 equivalent, key selection criteria include h_FE range (200–450), V_CE(SAT) ≤ 300 mV at I_C = 100 mA, f_T = 100 MHz, thermal resistance R_JA = 833 °C/W, and SOT-563 footprint compatibility with space-constrained PCB layouts.

Technical Context

The BC847BV-7 integrates two matched NPN epitaxial transistors in a single ultra-small SOT-563 package, enabling compact dual-gain-stage or complementary-pair biasing without discrete placement. Its 6 V V_EBO and 50 V V_CBO support moderate-voltage signal routing while maintaining low leakage (I_CBO ≤ 15 nA at 30 V).

Designed for stable DC amplification and fast switching up to 100 MHz, it operates across –55°C to +150°C with normalized h_FE retention >80% at 150°C ambient, and exhibits <10 dB noise figure at 1 kHz for low-noise preamplifier use.

Key Specifications

Pinout & Package

Package: SOT-563 - ultra-small 6-pin surface-mount plastic package (UL 94V-0), 1.60 mm × 1.20 mm × 0.60 mm body, matte tin-plated terminals, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual NPN small-signal transistor applications.

Compared with BC847B,215 and MBT3904DW1T1G, the BC847BV-7 uniquely balances ultra-compact SOT-563 size, high h_FE consistency, and sub-300 mV saturation-making it optimal for space-limited, low-power analog signal chains where thermal margin is secondary to footprint.

Availability

BC847BV-7 is available at Aetrix Electronics and suitable for portable audio preamps, IoT sensor signal conditioning, and industrial logic-level translation requiring stable component supply and long-term manufacturability.

Supply support for BC847BV-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, cost-optimized components for consumer, industrial, and automotive markets.

The BC847BV-7 belongs to Diodes' BC847 family of dual small-signal transistors, engineered specifically for miniaturized analog signal processing and low-power switching in space-constrained applications.

FAQ

Is BC847BV-7 pin-compatible with BC847B in SOT-23-6?

No. BC847BV-7 uses SOT-563 (1.6 mm × 1.2 mm), while BC847B uses SOT-23-6 (2.9 mm × 1.3 mm). Pin assignments differ: SOT-563 has E-B-C-C-B-E sequence, whereas SOT-23-6 follows E-B-C-E-B-C. PCB redesign and footprint validation are required for substitution.

What is the maximum operating temperature for continuous use?

The BC847BV-7 is rated for continuous operation from –55°C to +150°C junction temperature. At 150°C ambient, derated power dissipation is ~50 mW per transistor based on R_JA = 833 °C/W and T_J(max) = 150°C, confirmed in Figure 1 of DS30432 Rev. 1–2.

Does BC847BV-7 support lead-free reflow soldering?

Yes. It features matte tin-plated terminals compliant with J-STD-020A Level 1 moisture sensitivity and qualified for standard Pb-free reflow profiles (peak 260°C, 10-second dwell), as documented in Diodes' AP02007 packaging specification.

Can both transistors be used in parallel for higher current handling?

Not recommended. While electrically possible, mismatched V_BE and h_FE between the two die can cause current imbalance, leading to thermal runaway. For >100 mA loads, use a single-transistor solution like MMBT3904 or dedicated power switches.