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High-Power-Density Surface-Mount TRANSZORB® Transient Voltage Suppressors
Key Benefits:
 Available with a variety of peak pulse power ratings (10/1000 µs waveform)
500-W peak pulse power capability for SMA with both uni- and bi-directional polarity compared to industry standard 400 W
800-W peak pulse power for SMB with bidirectional polarity compared to industry standard 600 W
1000-W peak pulse power for SMB with unidirectional polarity compared to industry standard 600 W
Available in stand-off voltages from 5.0 V to 40 V
Feature low-profile package with built-in strain relief for surface-mounted applications
Feature a glass-passivated junction
Rated for an operating temperature range of −55 °C to +150 °C
Provide excellent clamping capability with low incremental surge resistance
Low leakage current
Offer very fast response time
Housed in a plastic package with Underwriters Laboratory Flammability Classification 94V-0
Peak pulse power rating for |
New TRANSZORB devices |
Typical industry-standard |
SMA-packaged devices with both uni- and bi-directional polarity |
500 W |
400 W |
SMB-packaged devices with bidrectional polarity |
800 W |
600 W |
SMB-packaged devices with unidirectional polarity |
1000 W |
600 W |
Key Applications:
Protection of sensitive components such as CMOS, bipolar, ECL, TTL, DTL circuits, and ICs
Protection from switching transients and induced RF
ESD protection of data lines in accordance with IEC 1000-4-2 (IEC801-2)
EFT protection of data lines in accordance with IEC 1000-4-4 (IEC801-4)
End products include power supply, switching mode power supply (SMPS), automotive, and telecom systems.
The Perspective:
High-power-density TRANSZORB® transient voltage suppressors in the SMA and SMB packages are designed to protect a variety of voltage-sensitive components from destruction or degradation by transient overvoltages. Their instantaneous response to transient overvoltages makes these devices particularly suited to protect voltage-sensitive devices such as MOS technology and low-voltage-supplied ICs. Vishay offers devices with peak pulse power of 500 W and various voltage options in the SMA package, as well as 1000-W unidirectional and 800-W bidirectional devices in various voltages in the SMB package. The new transient voltage suppressors are ideal for power supply, SMPS, telecom, and automotive voltage-protection applications.
Specification Summary Table
Availability:
Samples and production quantities are available
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