Nexperia USA Inc. BC807-25HR

Overview

BC807-25HR from Nexperia is a PNP general-purpose bipolar junction transistor in SOT23 package, rated for −45 V V_CEO, −500 mA continuous collector current, and DC current gain (h_FE) of 160–400 at V_CE = −1 V and I_C = −100 mA. It operates reliably up to 175 °C junction temperature and serves as a low-voltage switching or linear amplification device in power management and signal conditioning circuits.

For engineers reviewing the BC807-25HR datasheet, BC807-25HR pinout, BC807-25HR application, or BC807-25HR equivalent, this page delivers verified electrical parameters, thermal derating behavior, saturation voltage performance under defined I_C/I_B ratios, and real-world mounting conditions on FR4 PCBs - all critical for discrete BJT selection in industrial control and automotive subsystems.

Technical Context

The BC807-25HR implements a silicon planar epitaxial PNP structure optimized for stable DC current gain across wide temperature ranges (−55 °C to +175 °C) and exhibits low V_CE(sat) of ≤ −700 mV at I_C = −500 mA and I_B = −50 mA. Its transition frequency f_T reaches 80 MHz at V_CE = −5 V and I_C = −10 mA, supporting moderate-speed switching applications.

Thermal resistance R_th(j-a) varies from 280 K/W (4-layer FR4, 1 cm² collector pad) to 470 K/W (single-sided FR4, standard footprint), directly impacting power handling in thermally constrained layouts. Emitter and collector capacitances are specified at 45 pF and 7 pF respectively, enabling predictable high-frequency behavior in bias networks.

Key Specifications

Pinout & Package

SOT23 plastic surface-mounted package (TO-236AB), 3-lead, dimensions per Fig. 43: 2.9 mm × 1.3 mm × 0.95 mm, with standard reflow footprint per Fig. 44.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC807-25 and MMBT3906LT1G, the BC807-25HR provides the highest guaranteed current drive (−500 mA) and widest h_FE range (160–400), making it optimal for thermally demanding industrial switches where both gain consistency and conduction efficiency are design-critical.

Availability

BC807-25HR is available at Aetrix Electronics and suitable for industrial power switching, automotive body control, consumer audio biasing, and medical sensor signal conditioning requiring stable component supply across extended temperature ranges and high-volume production cycles.

Supply support for BC807-25HR 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 discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.

The BC807H series belongs to Nexperia's general-purpose transistor product line, engineered for robustness in harsh environments and designed to replace legacy BC807 variants with enhanced thermal performance and tighter parametric control.

FAQ

What is the maximum safe operating voltage for BC807-25HR in a common-emitter configuration?

The absolute maximum collector-emitter voltage (V_CEO) is −45 V with base open, per IEC 60134 limiting values. Operation above this risks permanent breakdown. For reliable design, maintain ≤ −36 V under transient conditions and apply ≥20% derating for long-term reliability in industrial applications.

How does thermal resistance vary with PCB construction for BC807-25HR?

R_th(j-a) ranges from 280 K/W (4-layer FR4, 1 cm² collector pad) to 470 K/W (single-sided FR4, standard footprint). This 68% difference means power dissipation must be reduced by nearly half on basic boards to avoid exceeding T_j(max) = +175 °C - verify layout using Fig. 1 derating curves.

Can BC807-25HR replace BC807-25 in existing designs without modification?

Yes - BC807-25HR shares identical electrical characteristics, pinout, and package dimensions with BC807-25. The 'R' suffix denotes tape-and-reel packaging compliant with JESD46, making it drop-in compatible for automated assembly while maintaining full functional equivalence in circuit operation.

What is the typical V_BE at I_C = −500 mA and 25 °C ambient?

Per Table 8, V_BE is ≤ −1.2 V at V_CE = −1 V and I_C = −500 mA. Measured data in Fig. 21 shows −1.15 V typical at 25 °C, confirming sufficient forward bias for reliable saturation when driven with I_B ≥ −50 mA - critical for minimizing switching losses.