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P6SMB68A
NextGen Components
TVS Diode 600W 68V UNI SMB
32262 Pcs New Original In Stock
92V Clamp Ipp Tvs Diode Surface Mount SMB (DO-214AA)
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5.0 / 5.0
- (506 Ratings)
P6SMB68A
Product Overview
2056813
DiGi Electronics Part Number
P6SMB68A-DGManufacturer
NextGen Components
P6SMB68A
Description
TVS Diode 600W 68V UNI SMBInventory
32262 Pcs New Original In Stock
92V Clamp Ipp Tvs Diode Surface Mount SMB (DO-214AA)
Quantity
Minimum 1
Minimum 1
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P6SMB68A Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
Tape & Reel (TR)
Series
SMB
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
58.1V
Voltage - Breakdown (Min)
64.6V
Voltage - Clamping (Max) @ Ipp
92V
Power - Peak Pulse
600W
Power Line Protection
No
Applications
General Purpose
Operating Temperature
-65°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
DO-214AA, SMB
Supplier Device Package
SMB (DO-214AA)
Datasheet & Documents
HTML Datasheet
P6SMB68A-DG
Environmental & Export Classification
RoHS Status
RoHS Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
3372-P6SMB68ATR
Standard Package
6,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
친절한 상담과 함께 훌륭한 제품을 받을 수 있어서 행복했어요.
Dec 02, 2025
고객의 요구를 빠르게 파악하고, 신속하게 해결해주는 서비스가 정말 만족스럽습니다.
Dec 02, 2025
The website design is clean and modern, enhancing overall shopping satisfaction.
Dec 02, 2025
I’ve always received my orders quickly, and their products are remarkably durable.
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Frequently Asked Questions (FAQ)
When designing in the P6SMB68A for industrial surge protection, what PCB layout considerations help ensure reliable clamping performance during ESD events?
To ensure reliable clamping performance with the P6SMB68A during ESD or transient events, minimize trace inductance by keeping the path between the protected line and ground as short and wide as possible. Use vias close to the SMB pads to connect to ground planes directly, reducing loop area. Avoid daisy-chaining other components in the protection path, and ensure the TVS is the first component after the connector. Poor layout can increase clamping voltage beyond the rated 92V, risking downstream IC damage despite the P6SMB68A's specified performance.
Can the P6SMB68A replace the SMAJ68A in a 48V DC power rail protection circuit, and what are the key differences affecting reliability?
Yes, the P6SMB68A can generally replace the SMAJ68A in a 48V DC rail application, but note that the P6SMB68A is housed in an SMB (DO-214AA) package versus the SMA (DO-214AC), resulting in lower power dissipation capability under sustained overstress. While both have similar standoff and clamping voltages, the smaller SMB package of the P6SMB68A may overheat during repetitive transients. Use the P6SMB68A only if transient energy levels are within 600W peak pulse and duty cycle is low. For higher energy surges, consider derating or upgrading to a larger package.
What are the risks of using the P6SMB68A in a high-temperature automotive under-hood environment near 140°C?
The P6SMB68A is rated for junction temperatures up to 150°C, making it technically suitable for high-temp environments. However, at 140°C ambient, thermal derating must be carefully evaluated—especially if the device sees frequent transients. Leakage current increases significantly near max temperature, potentially causing false triggering or loading on the protected line. Ensure adequate PCB copper for heatsinking and verify system-level thermal performance during surge events to prevent premature aging or parametric drift in the P6SMB68A over time.
How does the unidirectional design of the P6SMB68A impact circuit integration in bidirectional signal lines like RS-485?
The P6SMB68A is a unidirectional TVS, meaning it only protects against positive transients relative to ground. Using it on a bidirectional signal line like RS-485 without additional protection can leave the negative half of the waveform unprotected. For full protection, pair the P6SMB68A with a second diode or use a dedicated bidirectional TVS such as the P6SMB68CA. Misapplication here can lead to undetected failure during negative surges, risking transceiver damage despite apparent protection.
What design trade-offs should be considered when selecting the P6SMB68A over the P6KE68A for surface-mount surge protection?
The P6SMB68A (SMB) offers a smaller footprint than the axial-lead P6KE68A (DO-41), beneficial for space-constrained designs. However, the P6KE68A can handle higher surge currents due to better thermal dissipation. The P6SMB68A’s 600W peak pulse rating may require stricter transient energy profiling—simulate worst-case surge conditions to confirm it won’t exceed Ipp. Use the P6SMB68A only when PCB space is limited and transient levels are moderate; otherwise, the P6KE68A offers superior ruggedness in harsh environments.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
P6SMB68A CAD Models
NextGen Components P6SMB68A PCB symbols & footprints
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