Nexperia USA Inc. BZB984-C8V2,115

Overview

BZB984-C8V2,115 from Nexperia is a dual Zener voltage regulator diode in SOT663 package, configured as two cathodes (K1, K2) sharing a common anode (CA), with nominal 8.2 V regulation at 5 mA, ±5% tolerance, and 40 Ω typical differential resistance. It delivers ESD/surge protection and low-power voltage reference in space-constrained consumer and industrial PCBs.

For engineers reviewing the BZB984-C8V2,115 datasheet, BZB984-C8V2,115 pinout, BZB984-C8V2,115 application, or BZB984-C8V2,115 equivalent, this device serves as a compact dual-Zener solution for bidirectional clamping, rail-to-rail voltage stabilization, and precision reference generation where thermal resistance to solder point (125 K/W, 2-diode loaded) and low reverse leakage (≤0.7 μA at 6.6 V) are critical.

Technical Context

This double-Zener diode integrates two independent Zener junctions sharing a common anode terminal, enabling symmetrical clamping across positive/negative transients or dual-rail referencing. Its 8.2 V nominal working voltage is specified at I_Z = 5 mA with 4.3 mV/K temperature coefficient and 150 pF capacitance at 0 V.

Thermal performance is defined for FR4 PCB mounting: total power dissipation is 425 mW when both diodes are active, with junction-to-solder-point thermal resistance of 125 K/W (2-diode loaded), supporting reliable operation up to 150 °C junction temperature.

Key Specifications

Pinout & Package

SOT663 is an ultra-small flat plastic surface-mount package (1.7 × 1.5 × 0.5 mm) with three leads, optimized for high-density PCB layouts and reflow soldering only.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-Zener voltage regulation applications.

Compared with DMN2016LFG-7 and BZX84-C8V2,215, the BZB984-C8V2,115 uniquely integrates dual 8.2 V Zeners in one SOT663 package with shared anode, reducing component count by 50%, minimizing interconnect inductance for fast transient response, and enabling true bidirectional clamping without layout compromise.

Availability

BZB984-C8V2,115 is available at Aetrix Electronics and suitable for USB interface protection, low-power sensor reference, and industrial IO module clamp requiring stable component supply, consistent parametric performance, and long-term obsolescence management.

Supply support for BZB984-C8V2,115 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 leading semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components, headquartered in Nijmegen, Netherlands.

The BZB984 series belongs to Nexperia's precision Zener diode product line, engineered for compact, reliable voltage regulation and ESD protection in space-constrained, thermally demanding applications.

FAQ

What is the maximum non-repetitive peak reverse power the BZB984-C8V2,115 can handle?

The device supports 40 W non-repetitive peak reverse power dissipation (P_ZSM) at t_p = 100 μs and T_amb = 25 °C, as defined in Table 5 of the datasheet. This rating applies to single-pulse events and must not be exceeded even once without verifying junction temperature rise using R_th(j-a) = 294 K/W (free air, 2-diode loaded).

Can the BZB984-C8V2,115 be used for bidirectional TVS protection?

Yes - its common-anode dual-cathode structure allows direct implementation of bidirectional clamping: applying transient voltage between K1 and K2 creates opposing Zener conduction paths through CA, limiting differential swing to ~16.4 V (8.2 V + 8.2 V) with sub-nanosecond response, confirmed by Figure 1 pulse power curves.

How does the 4.3 mV/K temperature coefficient affect regulation accuracy over temperature?

At 8.2 V nominal, +4.3 mV/K yields +0.42 V drift from −40 °C to +105 °C (145 K range), resulting in ~5.1% total shift. This is within the ±5% initial tolerance band and matches typical use cases where moderate tempco is acceptable for cost-optimized references.

Is the SOT663 package compatible with standard reflow profiles?

Yes - Nexperia specifies reflow soldering as the only recommended method, with footprint dimensions in Figure 10 (2.45 × 1.6 mm land pattern). The package withstands JEDEC J-STD-020D-compliant peak temperatures up to 260 °C, and its 0.5 mm height ensures compatibility with automated optical inspection (AOI) systems.