Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
P4SMA16A
NextGen Components
TVS Diode 400W 16V UNI SMA
66541 Pcs New Original In Stock
22.5V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (462 Ratings)
P4SMA16A
Product Overview
2052366
DiGi Electronics Part Number
P4SMA16A-DGManufacturer
NextGen Components
P4SMA16A
Description
TVS Diode 400W 16V UNI SMAInventory
66541 Pcs New Original In Stock
22.5V Clamp Ipp Tvs Diode Surface Mount DO-214AC, SMA
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
P4SMA16A Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
-
Series
SMA
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
13.6V
Voltage - Breakdown (Min)
15.2V
Voltage - Clamping (Max) @ Ipp
22.5V
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
P4SMA16A-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-P4SMA16ATR
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Leurs processus logistiques sophistiqués assurent une livraison à la hauteur des attentes.
Dec 02, 2025
Reliability is key for my gaming rig, and DiGi Electronics never lets me down.
Dec 02, 2025
Shopping at DiGi Electronics means I don’t have to compromise on speed or cost.
Dec 02, 2025
The professional packaging process reflected the quality standards of the company.
Dec 02, 2025
DiGi Electronics combines affordability with high standards of quality effortlessly.
Dec 02, 2025
Support team was very helpful and responded promptly to my request.
Dec 02, 2025
Reliable after-sales service has fostered a strong trust in DiGi Electronics.
Dec 02, 2025
The quality of their offerings is outstanding, ensuring my DIY creations are both functional and long-lasting. I truly trust their products for my hobby.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
When designing in the P4SMA16A for overvoltage protection in an industrial sensor circuit, what are the key risks if the reverse standoff voltage (13.6V typ) is too close to the normal operating voltage?
When using the P4SMA16A in a circuit where the normal operating voltage approaches 13.6V, there's a risk of leakage current increase due to near-breakdown conditions, leading to power loss or signal distortion. Always ensure at least a 10-15% margin between the maximum operating voltage and the 13.6V reverse standoff to prevent premature conduction. For example, if your system operates at 12V, transients or ripple could momentarily exceed 13.6V, causing the P4SMA16A to partially conduct. Consider using a P4SMA18A for 12V systems to increase design headroom while maintaining similar clamping performance under fault conditions.
Can the P4SMA16A be used as a direct replacement for the SMAJ16A in a high-temperature automotive application, and what design-in considerations should be evaluated?
While both the P4SMA16A and SMAJ16A have similar voltage ratings and 400W peak pulse power, they are not always interchangeable due to potential differences in dynamic resistance, clamping performance under surge, and manufacturer process variations. When replacing SMAJ16A with P4SMA16A in automotive environments, verify that the clamping voltage (22.5V max @ Ipp) does not exceed downstream IC tolerances under ISO 7637-2 load dump simulations. Additionally, validate long-term reliability at temperatures above 125°C, as different manufacturing processes may affect thermal stability even within the same DO-214AC package.
How does the P4SMA16A perform in repetitive ESD events in a consumer USB interface, and what are the reliability concerns over time?
The P4SMA16A can handle repetitive ESD strikes up to its rated 400W peak pulse, but repeated exposure near maximum clamping levels (e.g., multiple 8kV IEC 61000-4-2 discharges) may degrade the Zener junction over time due to cumulative thermal stress. For USB interfaces with frequent plugging/unplugging, monitor junction temperature rise and consider adding a series current-limiting resistor to reduce peak stress on the P4SMA16A. For high-cycle applications, evaluation boards should be life-tested under real-world ESD conditions to confirm sustained clamping performance and avoid latent failures.
What layout and thermal considerations should be addressed when integrating the P4SMA16A in a compact PCB with limited copper area?
In compact PCBs with minimal copper, the P4SMA16A’s ability to dissipate transient energy is reduced, increasing the risk of thermal runaway during sustained surges. To mitigate this, maximize copper traces connected to both terminals of the P4SMA16A, use thermal vias under the pads if possible, and avoid placing it near other heat-generating components. If board space limits copper area, consider derating the peak pulse power to 200-250W in design calculations. The DO-214AC package relies heavily on PCB conduction for heat dissipation, so insufficient layout support can cause premature failure even at levels below the rated 400W.
How does the clamping voltage (22.5V max) of the P4SMA16A impact compatibility with 16V-rated downstream components, such as MOSFETs or regulators?
The P4SMA16A clamps transients up to 22.5V, which poses a risk to 16V-rated components like low-voltage MOSFETs (e.g., IRLML6344) or 16V-tolerant ICs that may fail at voltages above 20V. Always verify that downstream devices have a voltage tolerance exceeding 22.5V, even briefly. If not, consider using a lower-clamping alternative like the P4SMA15A or adding secondary protection (e.g., a low-capacitance TVS in parallel) or current-limiting elements to reduce the stress duration. The P4SMA16A is suitable only when all protected components can safely withstand its maximum clamping level during transient events.
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.
P4SMA16A CAD Models
NextGen Components P4SMA16A PCB symbols & footprints
productDetail
