Diodes Incorporated DZ9F6V2S92-7

Overview

DZ9F6V2S92-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 6.2 V (±5% tolerance), 5 mA test current, 60 Ω maximum zener impedance at 5 mA, and 110 pF capacitance at 1 MHz/0 V. It operates within −65°C to +150°C and dissipates up to 200 mW on FR-4 PCB with recommended pad layout. It serves as precision voltage reference or overvoltage clamp in space-constrained power management circuits.

For engineers reviewing the DZ9F6V2S92-7 datasheet, DZ9F6V2S92-7 pinout, DZ9F6V2S92-7 application, or DZ9F6V2S92-7 equivalent, key selection criteria include zener voltage stability across temperature (TC = +0.4 mV/°C), low leakage (<1 µA at 3 V), thermal resistance (625 °C/W), and SOD923 package compatibility with high-density PCB layouts.

Technical Context

This Zener diode functions in reverse-biased breakdown mode to regulate or clamp voltage at 6.2 V with tight tolerance (5.89–6.51 V) and low dynamic impedance (60 Ω @ 5 mA). Its flat-lead SOD923 package enables visible solder joint inspection without X-ray, supporting automated optical inspection in high-volume manufacturing.

Thermal performance is defined for mounting on FR-4 with Diodes' recommended pad layout: 200 mW max power at 25°C, derating linearly at 2.0 mW/°C above ambient. Junction-to-ambient thermal resistance is 625 °C/W - critical for thermal design in compact DC-DC feedback paths or I/O protection networks.

Key Specifications

Pinout & Package

Package: SOD923 - ultra-small flat-lead surface-mount package with cathode band marking. Dimensions: 1.0 mm length × 0.6 mm width × 0.37 mm height; lead width 0.2 mm; weight ≈ 0.001 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B6V2 and MMSZ4687T1G, DZ9F6V2S92-7 offers the smallest footprint (SOD923), lowest thermal resistance among comparables, and best temperature coefficient (+0.4 mV/°C), making it optimal for miniaturized, thermally sensitive voltage reference applications.

Availability

DZ9F6V2S92-7 is available at Aetrix Electronics and suitable for USB Type-C port protection, wearable battery monitoring, and industrial sensor signal conditioning requiring stable component supply and consistent SOD923 packaging.

Supply support for DZ9F6V2S92-7 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, headquartered in Plano, Texas, serving industrial, computing, consumer, and communications markets since 1959.

DZ9F6V2S92-7 belongs to the DZ9F series of ultra-miniature Zener diodes designed specifically for high-density PCB applications where space, thermal performance, and visual solder inspection are critical constraints.

FAQ

What is the maximum reverse voltage this Zener can withstand before breakdown?

The DZ9F6V2S92-7 has a nominal zener voltage of 6.2 V with a guaranteed breakdown range of 5.89 V to 6.51 V at 5 mA test current. It does not specify a separate "maximum reverse voltage" rating - operation above 6.51 V in reverse bias will enter controlled breakdown, limited by power dissipation and external current limiting.

Can this part be used in place of a standard 1N4735A?

No - the 1N4735A is a 6.2 V, 1 W through-hole Zener in DO-41 package, while DZ9F6V2S92-7 is a 200 mW, SOD923 surface-mount device. They differ in power rating, package, thermal behavior, and impedance (1N4735A Z_ZT ≈ 7 Ω). Substitution requires verifying current limiting, PCB layout, and thermal design.

Is the SOD923 package compatible with standard 0402 reflow profiles?

Yes - the SOD923 package uses matte tin annealed terminals and is rated for standard lead-free reflow profiles (J-STD-020 Level 1 moisture sensitivity). Its 0.2 mm lead width and flat-lead geometry support reliable solder joint formation using typical 0402 stencil apertures and reflow ramp rates.

Does this Zener diode require a heatsink in normal operation?

No - with a 200 mW power rating and 625 °C/W thermal resistance, the DZ9F6V2S92-7 remains within safe junction temperature limits (<150°C) when dissipating ≤200 mW on FR-4 with Diodes' recommended pad layout. No external heatsink is needed or feasible given its 0.37 mm height.