Vishay BZT55C

BZT55C variants from Vishay

BZT55C Datasheet

Variants

Mfr

Vishay

Lifecycle

Active

BZT55C Overview

What changes between part numbers, and what to check before you lock the BOM — Zener Diodes.

Key Features

Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
17 distinct suffix patternsExamples: 10-GS08, 12-GS08, 15-GS08, 18-GS08, 20-GS08 (+12 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Zener Diodes — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 17 BZT55C part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Manufacturer	Lifecycle	RoHS	Availability	Action
BZT55C10-GS08	Zener Diode Single 10V 6% 15Ohm 500mW Automotive 2-Pin Quadro MELF SOD-80 T/R	Vishay	Active	Compliant	In Stock	RFQ
BZT55C12-GS08	Diode Zener Single 12V 5% 500mW 2-Pin Quadro MELF SOD-80 T/R	Vishay	Active	Compliant	In Stock	RFQ
BZT55C15-GS08	BZT55 Series 15 V 500 mW SMT Small Signal Zener Diode - QuadroMELF SOD-80	Vishay	Active	Compliant	In Stock	RFQ
BZT55C18-GS08	BZT55C18-GS08 Zener Diode, 18V 6% 0.5 W SMT 2-Pin SOD-80 \| Siliconix / Vishay BZT55C18-GS08	Vishay	Active	Compliant	In Stock	RFQ
BZT55C20-GS08	Zener Diodes 20 Volt 0.5W 5%	Vishay	Active	Compliant	In Stock	RFQ
BZT55C27-GS08	Zener Diodes 27 Volt 0.5W 5%	Vishay	Active	Compliant	In Stock	RFQ
BZT55C33-GS08	Zener Diodes 33 Volt 0.5W 5%	Vishay	Active	Compliant	In Stock	RFQ
BZT55C3V3-GS08	Diode Zener Single 3.3V 6% 500mW Automotive 2-Pin Quadro MELF SOD-80 T/R	Vishay	Active	Compliant	In Stock	RFQ
BZT55C3V9-GS08	Zener Diodes 3.9 Volt 0.5W 5%	Vishay	Active	Compliant	In Stock	RFQ
BZT55C43-GS08	Zener Diodes 43 Volt 0.5W 5%	Vishay	Active	Compliant	In Stock	RFQ
BZT55C4V7-GS08	Diode Zener Single 4.7V 6% 500mW Automotive 2-Pin Quadro MELF SOD-80 T/R	Vishay	Active	Compliant	In Stock	RFQ
BZT55C5V1-GS08	Zener Diode Single 5.1V 6% 60Ohm 500mW Automotive 2-Pin Quadro MELF SOD-80 T/R	Vishay	Active	Compliant	In Stock	RFQ
BZT55C5V6-GS08	BZT55 Series 500 mW 5.6 V Surface Mount Voltage Regulator Diode - SOD-80	Vishay	Active	Compliant	In Stock	RFQ
BZT55C6V2-GS08	Zener Diodes 6.2 Volt 0.5W 5%	Vishay	Active	Compliant	In Stock	RFQ
BZT55C6V8-GS08	Diode Zener Single 6.8V 6% 500mW Automotive 2-Pin Quadro MELF SOD-80 T/R	Vishay	Active	Compliant	In Stock	RFQ
BZT55C7V5-GS08	Zener Diode, single, Two Terminal, 7.5V V(Z), 6.7%, do-213Aa \|Vishay BZT55C7V5-GS08	Vishay	Active	Compliant	In Stock	RFQ
BZT55C9V1-GS08	Zener Diodes 9.1 Volt 0.5W 5%	Vishay	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on BZT55C map to package, grade, and reel options.

How to Choose the Right BZT55C Zener Diodes

📦

Match the footprint first

Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For BZT55C, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "BZT55C" — include the full suffix (e.g. 10-GS08, 12-GS08, 15-GS08). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for BZT55C product family

Identity

Base Model

BZT55C

Manufacturer

Vishay

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source BZT55C with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 17 ordering variants from Vishay. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View Vishay Browse all base models →

Frequently Asked Questions

Common technical questions about the BZT55C product family.

Is BZT55C a single part I can order, or a family prefix?

BZT55C is a base / family code from Vishay. You order a full MPN such as BZT55C10-GS08, BZT55C12-GS08, BZT55C15-GS08. The variant table lists 17 orderable lines with different suffixes.

What do the suffix letters on BZT55C part numbers mean?

Listed suffix fragments include: 10-GS08, 12-GS08, 15-GS08, 18-GS08, 20-GS08, 27-GS08. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the Vishay datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of BZT55C variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on BZT55C?

Full manufacturer MPN (not just BZT55C), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.

Where is the BZT55C datasheet?

Use the datasheet link in the page header. Cross-check electrical curves (SOA, saturation voltage, etc.) against your operating point — the table summarizes order codes, not every graph in the PDF.