SMHEB Series: Unidirectional ESD and Surge Defense in a Slim SOD-323HE-B Package
MCC is excited to introduce the SMHEB series, including the SMHEB15A and SMHEB30A, a new line of unidirectional TVS diodes designed to protect DC power rails from fast ESD strikes and high-energy surges. These transients can overstress PMICs, voltage regulators, and other sensitive components. Designers need compact, reliable protection that fits into height-constrained spaces without compromising performance or adding complexity.
The SMHEB series offers protection across a wide voltage range, from 6.5 V to 58 V, with fast clamping action and a 200 W peak pulse rating (10/1000 μs waveform). This helps absorb high-energy transients and safeguard downstream circuitry. Housed in the ultra-compact SOD-323HE-B package, these diodes are ideal for placement near connectors or loads, improving clamping effectiveness while conserving PCB space.
With low leakage current and low capacitance, the SMHEB series minimizes impact on power efficiency and regulator stability during normal operation. The unidirectional configuration is optimized for DC power lines in industrial, telecom, consumer, and data center applications.
Features & Benefits:
- Ultra-compact, low-profile SOD-323HE-B package for space-constrained designs
- Wide working voltage range: 6.5 V to 58 V for flexible rail protection
- 200 W peak pulse power (10/1000 μs) to absorb high-energy transients
- Unidirectional design optimized for DC power rails
- Fast response time for effective ESD and surge suppression
- Low leakage current to preserve power efficiency
- Low capacitance for minimal impact on control and power lines
Product Highlights
SMHEB Series TVS Diodes
1
Compact Board Design
SMHEB Series TVS Diodes
2
Design Flexibility
SMHEB Series TVS Diodes
3
Improved System Robustness
SMHEB Series TVS Diodes
4
Stable, Efficient Operation
Applications
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Industrial |
Telecommunications |
Consumer Electronics |
Enterprise & Data Center |
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Product Attributes, Parametrics & Datasheet
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Product |
Type |
Package |
Peak Pulse |
Reverse |
Peak Pulse |
Mounting Type |
Datasheet |
|
TVS |
SOD-323HE-B |
200 |
15 |
8.2 |
Surface mount |
||
|
TVS |
SOD-323HE-B |
200 |
30 |
4.13 |
Surface mount |
Now available, purchase directly from MCC or through our authorized distributors.
For technical inquiries or sample requests, contact MCC for support.
For a deeper dive into TVS diode applications and best practices, check out our comprehensive guide.







