Nexperia USA Inc. BC817-16QC-QZ

Overview

BC817-16QC-Q from Nexperia is a 45 V, 500 mA NPN general-purpose transistor in a leadless DFN1412D-3 (SOT8009) package with side-wettable flanks, rated for automotive applications per AEC-Q101, featuring h_FE = 100–250 at I_C = 100 mA and V_CE = 1 V, V_CE(sat) ≤ 700 mV at I_C = 500 mA/I_B = 50 mA, and 0.5 mm profile for space-constrained PCB layouts.

For engineers reviewing the BC817-16QC-Q datasheet, BC817-16QC-Q pinout, BC817-16QC-Q application, or BC817-16QC-Q equivalent, this device supports high-density automotive body control modules, low-voltage DC-DC bias circuits, and AOI-compatible power switching where thermal performance on FR4 and precise current gain binning are critical selection criteria.

Technical Context

This NPN bipolar junction transistor operates as a linear amplifier or saturated switch with defined breakdown limits: V_CEO = 45 V, V_CBO = 50 V, and V_EBO = 5 V. Its pulsed peak collector current reaches 1 A (t_p ≤ 1 ms), supporting short-duration load driving without thermal runaway under transient conditions.

The DFN1412D-3 package delivers R_th(j-a) = 329 K/W (35 μm Cu) or 261 K/W (70 μm Cu), enabling stable operation up to T_j = 150 °C. Base-emitter saturation voltage remains ≤1.2 V at I_C = 500 mA, ensuring predictable drive requirements in digital logic interfacing.

Key Specifications

Pinout & Package

DFN1412D-3 (SOT8009) is a 3-terminal, leadless, ultra-thin (0.48 mm height) plastic package with side-wettable flanks for automated optical inspection (AOI) of solder joints. Dimensions: 1.4 mm × 1.2 mm × 0.48 mm, 0.8 mm pitch, FR4-compatible footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC817-16QC-Q, BC817-16LT1G sacrifices thermal performance and AOI capability for footprint familiarity, while MMBT3904LT1G trades automotive qualification and voltage margin for broader availability and lower unit cost in non-automotive designs.

Availability

BC817-16QC-Q is available at Aetrix Electronics and suitable for automotive body electronics, USB-C power management, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for BC817-16QC-Q 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-enhancing components, delivering high-performance, reliable, and scalable discrete and logic devices.

BC817-16QC-Q belongs to the BC817QC-Q series of AEC-Q101-qualified NPN transistors designed specifically for space-constrained, thermally demanding automotive and industrial switching and amplification applications.

FAQ

Is BC817-16QC-Q pin-compatible with standard SOT-23 NPN transistors?

No. BC817-16QC-Q uses the DFN1412D-3 (SOT8009) leadless package with three terminals arranged in a 1.4 mm × 1.2 mm footprint and side-wettable flanks. It is not mechanically or solder-reflow compatible with SOT-23 or SC-70 packages due to different pad layout, absence of leads, and thermal pad integration.

What is the maximum allowable PCB copper thickness for optimal thermal performance?

Optimal thermal performance is achieved with 70 μm (2 oz) FR4 copper, yielding R_th(j-a) = 261 K/W. With 35 μm (1 oz) copper, R_th(j-a) rises to 329 K/W. Layout must follow Nexperia's recommended solder land pattern (Fig. 17) and include thermal vias under the exposed emitter pad for best results.

Does the "QC-Q" suffix indicate tape-and-reel packaging or a functional variant?

The "QC-Q" suffix denotes the AEC-Q101-qualified version in DFN1412D-3 packaging with side-wettable flanks and automotive-grade process control. It is not a packaging indicator-ordering code BC817-16QC-Q specifies both the device grade and package type, distinct from commercial-grade BC817-16 variants in SOT-23.

Can BC817-16QC-Q be used in linear regulator pass transistor applications?

Yes, but with strict thermal derating. At I_C = 300 mA and V_CE = 5 V, power dissipation reaches 1.5 W-far exceeding its 380–480 mW rating. It is suitable only for low-dropout, low-current linear regulation (e.g., <100 mA at <2 V drop) with aggressive PCB copper and thermal vias.