Diodes Incorporated BZT52C8V2S-7

Overview

BZT52C8V2S-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 8.2 V zener voltage (7.7–8.7 V range at 5 mA), 200 mW power dissipation, and SOD323 package. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for industrial sensors and automotive control modules.

For engineers reviewing the BZT52C8V2S-7 datasheet, BZT52C8V2S-7 pinout, BZT52C8V2S-7 application, or BZT52C8V2S-7 equivalent, key selection criteria include zener voltage tolerance (±6.1%), low reverse leakage (0.5 µA at 6.2 V), temperature coefficient (+3.2 mV/°C), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under controlled current conditions. Its planar die construction ensures consistent breakdown characteristics, while the SOD323 package supports high-density PCB layouts and automated reflow assembly.

The device exhibits a typical zener impedance of 15 Ω at 5 mA test current and 80 Ω at 1 mA knee current, enabling predictable regulation performance across load variations. Its thermal resistance (625 °C/W) and operating range (−65 to +150 °C) support use in thermally constrained environments without derating below 25 °C ambient.

Key Specifications

Pinout & Package

Package: SOD323 - surface-mount plastic case with matte tin-plated alloy 42 leadframe, UL 94V-0 flammability rating, and moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMSZ5236BS-7-F and BZX384-C8V2, BZT52C8V2S-7 offers optimal balance of automotive qualification, low-impedance regulation (15 Ω), and compact SOD323 footprint-making it ideal for space-constrained, high-reliability 8.2 V reference nodes where leakage (<0.5 µA) and tempco (+3.2 mV/°C) are design-critical.

Availability

BZT52C8V2S-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply and long-term lifecycle assurance.

Supply support for BZT52C8V2S-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, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The BZT52C series belongs to Diodes' standard Zener diode product line, engineered specifically for cost-effective, high-volume voltage regulation and protection in automotive, industrial, and consumer applications.

FAQ

What is the maximum reverse voltage (V_R) at which BZT52C8V2S-7 maintains specified leakage current?

The datasheet specifies 0.5 µA maximum reverse current at V_R = 6.2 V. At the nominal zener voltage of 8.2 V, the device enters full breakdown; therefore, V_R = 6.2 V is the rated test condition for leakage, not an absolute maximum. The absolute maximum reverse voltage before avalanche onset is defined by the 7.7 V minimum V_Z.

Can BZT52C8V2S-7 be used in parallel for higher power dissipation?

No-Zener diodes exhibit negative temperature coefficients and mismatched V_Z tolerances, causing current hogging when paralleled. Even with matched units, thermal runaway risk remains. For >200 mW requirements, use a single higher-power Zener or active regulation instead.

Is the SOD323 package compatible with standard reflow profiles for lead-free soldering?

Yes-the SOD323 package uses matte tin-plated leads qualified per MIL-STD-202, Method 208, and supports JEDEC J-STD-020 Class 1 moisture sensitivity. Standard lead-free reflow profiles (peak 260 °C, 60–90 sec above 217 °C) are fully compatible with its thermal design.

Does the "-7" suffix indicate tape-and-reel packaging only, or does it affect electrical performance?

The "-7" suffix denotes 3,000-unit tape-and-reel packaging per the ordering information table. It has no effect on electrical specifications, thermal performance, or reliability-only logistics and handling. All electrical parameters remain identical to the base part number.