Vishay BZM55-Series Manual
Summary
These Vishay BZM55-Series Zener Diodes are specialized components designed for precise, stable voltage regulation in small signal circuits. Ideal for engineers requiring robust performance in limited space, these diodes feature hermetic sealing and high reliability across wide temperature ranges. The documentation details comprehensive electrical characteristics, including dynamic test data, current coefficients (Z(T)), and thermal parameters, enabling accurate circuit design and optimization for mission-critical electronics applications.
Page 1 Text Content
BZM55-Series Vishay Semiconductors
Small Signal Zener Diodes
Features Saving space Hermetic sealed parts
Electrical data identical with the devices BZT55..Series / TZM..Series Fits onto SOD323/SOD110 footprints Very sharp reverse characteristic Low reverse current level Very high stability Low noise Available with tighter tolerances Lead (Pb)-free component Component in accordance to Ro HS 2002/95/EC and WEEE 2002/96/EC
Applications Mechanical Data Voltage stabilization Case: Micro MELF
Weight: approx. 12 mg Packaging codes/options: TR / 2.5 k per 7" reel, 12.5 k/box TR3 / 10 k per 13" reel, 10 k/box
Absolute Maximum Ratings Tamb = 25 °C, unless otherwise specified
Parameter Test condition Symbol Value Unit
Power dissipation Rth JA ≤ 300 K/W PV m W
Z-current IZ PV/VZ m A Junction temperature Tj °C Storage temperature range Tstg - 65 to + 175 °C
Thermal Characteristics Tamb = 25 °C, unless otherwise specified
Parameter Test condition Symbol Value Unit
Junction to ambient air mounted on epoxy-glass hard Rth JA K/W
tissue, Fig. 1
Junction tie point Rth JL K/W
35 µm copper clad, 0.9 mm2 copper area per electrode
Electrical Characteristics Tamb = 25 °C, unless otherwise specified
Parameter Test condition Symbol Min Typ. Max Unit
Forward voltage IF = 200 m A VF 1.5
Document Number 85597 www.vishay.com Rev. 1.9, 10-Mar-06
Page Summary Contents For Vishay BZM55-Series Manual
Manual Details
| Brand | Vishay |
|---|---|
| Pages | 8 |
| File Size | 149.26 KB |
| Published | May 30, 2026 |
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Frequently Asked Questions
Are these zener diodes suitable for life-sustaining medical equipment?
No, they are not designed for use in life-saving or life-sustaining applications. Use at your own risk.
What footprints does the BZM55 series component fit?
The components are specified to fit onto SOD323 and SOD110 footprints.
Is this component environmentally compliant?
Yes, it is a Lead (Pb)-free component and complies with RoHS and WEEE standards.
What is the absolute maximum power dissipation allowed?
The maximum rated power dissipation (P) is 500 mW when tested at 25 °C.