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P4SMA150A
NextGen Components
TVS Diode 400W 150V UNI SMA
10400 Pcs New Original In Stock
207V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
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5.0 / 5.0
- (75 Ratings)
P4SMA150A
Product Overview
2051991
DiGi Electronics Part Number
P4SMA150A-DGManufacturer
NextGen Components
P4SMA150A
Description
TVS Diode 400W 150V UNI SMAInventory
10400 Pcs New Original In Stock
207V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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P4SMA150A Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
Tape & Reel (TR)
Series
SMA
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
128V
Voltage - Breakdown (Min)
143V
Voltage - Clamping (Max) @ Ipp
207V
Power - Peak Pulse
400W
Power Line Protection
No
Applications
General Purpose
Operating Temperature
-50°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
DO-214AC, SMA
Supplier Device Package
DO-214AC, SMA
Datasheet & Documents
HTML Datasheet
P4SMA150A-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-P4SMA150ATR
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
這次在迪吉電子的購物經驗非常棒，價格優惠，客服熱情，讓我感受到物超所值的購物樂趣。
Dec 02, 2025
Le service après-vente de DiGi Electronics est professionnel et toujours disponible.
Dec 02, 2025
The logistic support was very swift, and the staff was friendly and helpful.
Dec 02, 2025
Their approach to customer service reflects a deep understanding of client needs.
Dec 02, 2025
Their affordable prices don't sacrifice the integrity of packaging, which is remarkably sturdy.
Dec 02, 2025
I was impressed by the quick and reliable logistics; my order arrived much faster than expected.
Dec 02, 2025
Their ability to keep inventory fully stocked and support customers after sales is remarkable.
Dec 02, 2025
DiGi Electronics' inventory practices ensure smooth supply chain operations.
Dec 02, 2025
Shopping on their website is enjoyable due to their excellent user experience design and support.
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Frequently Asked Questions (FAQ)
Can the P4SMA150A be used for EOS protection in 125V AC rectified circuits, and what derating should I apply for reliable operation?
Yes, the P4SMA150A can protect circuits powered by rectified 125V AC (which peaks around 177V). The P4SMA150A has a min breakdown voltage of 143V and a max clamping voltage of 207V at peak pulse current, offering margin above the peak voltage. However, for reliable long-term performance, apply a 20% derating to the peak pulse power (320W effective vs 400W rated) and ensure the average power dissipation stays below 1W under repetitive transients. Monitor junction temperature, especially above 85°C ambient, as the P4SMA150A's SMA package has limited thermal mass. For high-surge environments, consider parallel TVS diodes or upgrading to a 600W device like the P6SMB150A.
How does the P4SMA150A compare to the SMAJ150A in PCB layout and clamping performance for automotive load dump protection?
While both the P4SMA150A and SMAJ150A are SMA-package 150V TVS diodes, the P4SMA150A has a tighter manufacturing control on dynamic resistance, resulting in slightly better clamping (207V max vs SMAJ150A's 212V). PCB layout must minimize trace inductance (<5 nH preferred) to prevent overshoot during fast transients. Use the same pad layout for both: 0.9mm thermal pad, short wide traces to GND. Note that neither device is rated for full ISO 7637-2 load dump (which can exceed 1kV/5A); instead, they're suitable for minor transients or complemented with a varistor. The P4SMA150A's RoHS compliance and MSL-1 rating offer better manufacturability in humid environments.
Is the P4SMA150A suitable as a drop-in replacement for the SMB15A150 in a failed surge protection circuit, and what footprint adjustments are needed?
No, the P4SMA150A is not a direct pin-to-pin replacement for the SMB15A150 due to different package sizes: P4SMA150A uses DO-214AC (SMA) vs. SMB15A150's DO-214AA (SMB). The SMA package has a smaller footprint (2.92mm x 1.98mm) than SMB (4.32mm x 2.92mm), so physical mounting may fail under mechanical stress. Even if soldered, the reduced PCB copper area in SMA limits heat dissipation, increasing thermal runaway risk during repeated surges. Replace with an SMA-compatible variant like the P6SMB150A, or redesign the layout to accommodate the smaller P4SMA150A only if surge duty is light and thermal vias are added.
What are the risks of using the P4SMA150A in a high-humidity industrial control system above 85°C ambient temperature?
Using the P4SMA150A in high-humidity, high-temperature environments risks long-term parametric drift and delamination. While the P4SMA150A is MSL-1 rated and RoHS compliant, prolonged exposure above 85°C reduces MTBF due to accelerated moisture diffusion and increased junction leakage. The max TJ is 150°C, so ensure derating: at 105°C ambient, power dissipation must be limited to <1.5W. Add conformal coating to prevent surface leakage currents, and avoid locations near heat sources like power relays. For such conditions, consider hermetically sealed or larger package TVS options like the 5KP series for better thermal performance.
How do I verify that the P4SMA150A will survive repetitive ESD events in a USB-powered device with shared ground planes?
To ensure the P4SMA150A survives repetitive ESD in a USB-powered system, verify that Ipp remains below 1.93A (calculated from 400W / 207V clamping). For IEC 61000-4-2 ±8kV contact discharge, use transmission line pulsing (TLP) data if available, or simulate with a 330Ω test network. Route ESD paths directly from the connector to the P4SMA150A with minimal loop area; avoid daisy-chaining through ground planes to prevent voltage gradients. Use a local ground island under the P4SMA150A connected via multiple vias to chassis ground. Also, confirm that downstream ICs have ESD ratings below 207V to ensure the P4SMA150A activates first. Monitor for parametric shifts during HALT testing at -40°C and 85°C.
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.
P4SMA150A CAD Models
NextGen Components P4SMA150A PCB symbols & footprints
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