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P6SMB250CA
NextGen Components
TVS Diode 600W 250V BI SMB
17342 Pcs New Original In Stock
344V Clamp Ipp Tvs Diode Surface Mount SMB (DO-214AA)
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5.0 / 5.0
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P6SMB250CA
Product Overview
2056770
DiGi Electronics Part Number
P6SMB250CA-DGManufacturer
NextGen Components
P6SMB250CA
Description
TVS Diode 600W 250V BI SMBInventory
17342 Pcs New Original In Stock
344V Clamp Ipp Tvs Diode Surface Mount SMB (DO-214AA)
Quantity
Minimum 1
Minimum 1
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P6SMB250CA Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
Tape & Reel (TR)
Series
SMB
Product Status
Active
Type
Zener
Bidirectional Channels
1
Voltage - Reverse Standoff (Typ)
214V
Voltage - Breakdown (Min)
237V
Voltage - Clamping (Max) @ Ipp
344V
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
P6SMB250CA-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-P6SMB250CATR
Standard Package
6,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Leur souci de la qualité est évident, chaque produit est parfait.
Dec 02, 2025
Schnelle Lieferungen verbunden mit einem exzellenten Service – genau das, was man sich wünscht.
Dec 02, 2025
Wir sind begeistert von der effizienten Bearbeitung unserer Bestellungen, die stets pünktlich geliefert werden.
Dec 02, 2025
Receiving quality products from DiGi Electronics is always a pleasant experience.
Dec 02, 2025
Their price points are perfect for those who need dependable tech without high costs.
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Frequently Asked Questions (FAQ)
Can the P6SMB250CA TVS diode safely handle repeated 344V clamping events during long-term operation, and what derating or thermal management steps are needed to avoid premature failure?
The P6SMB250CA is rated for a 600W peak pulse power, but this is based on a 10/1000µs transient waveform—not continuous operation. Repeated clamping near 344V can cause cumulative heating due to energy absorption (E = V_clamp × I_pp × t). Without adequate PCB copper area for heat dissipation or airflow, junction temperature may exceed 150°C, accelerating wear. To mitigate risk, ensure transient duty cycle stays below 0.1%, use thermal vias under the SMB package, and consider parallel redundancy or higher-power alternatives like the 1.5KE250CA if transients are frequent or longer than 1ms.
Is the P6SMB250CA a suitable drop-in replacement for the Littelfuse SMBJ250CA in a 240V AC line protection circuit, and what key differences should I evaluate before making the swap?
While both the P6SMB250CA (NextGen Components) and SMBJ250CA (Littelfuse) share similar SMB packaging and ~250V standoff ratings, critical differences exist: the SMBJ250CA has a tighter breakdown voltage tolerance (min 278V vs. 237V for P6SMB250CA) and lower typical clamping voltage (~338V vs. 344V). In a 240V AC application, the P6SMB250CA’s lower breakdown could lead to earlier conduction during voltage surges, potentially increasing stress on downstream components. Verify your system’s surge immunity requirements (e.g., IEC 61000-4-5) and ensure the P6SMB250CA’s response time and leakage current meet your design margins before substitution.
How does the bidirectional nature of the P6SMB250CA affect its use in protecting unidirectional DC power rails, and could it introduce unintended leakage or noise issues?
The P6SMB250CA is a bidirectional TVS diode, meaning it clamps both positive and negative transients symmetrically around ground. On a unidirectional DC rail (e.g., +24V), this means it will also conduct during negative-going transients below -214V—which may not be relevant in most DC systems. However, its reverse leakage current (typically a few µA at 214V) flows regardless of polarity and can slightly increase quiescent power loss. More critically, if your system has sensitive analog circuitry referenced to the same ground, the bidirectional clamping action might couple noise during asymmetric surges. For pure DC rails, consider a unidirectional alternative like the P6SMB250A to minimize ground disturbance and leakage.
What layout practices are essential when placing the P6SMB250CA on a high-impedance signal line to prevent parasitic capacitance from degrading signal integrity?
Although the P6SMB250CA has relatively low junction capacitance (typically <100pF), on high-impedance or high-frequency signal lines (e.g., sensor inputs, communication buses), even this can form an RC low-pass filter that attenuates or distorts signals. Place the diode as close as possible to the connector or entry point of the protected line to minimize stub inductance. Use short, wide traces to the ground plane—avoid long return paths that increase loop area and EMI susceptibility. If signal bandwidth exceeds 10MHz, simulate the impact of the TVS capacitance using SPICE models, or evaluate lower-capacitance alternatives like the PESD250CA series, which trade surge power for signal fidelity.
Given the P6SMB250CA’s MSL-1 rating, can it be stored indefinitely without dry packing, and does this affect reliability in humid environments during assembly or field operation?
Yes, the P6SMB250CA’s Moisture Sensitivity Level 1 (MSL-1) rating means it is considered 'unlimited floor life' under JEDEC standards—no dry packing or bake-out is required before reflow. However, this only pertains to solderability and popcorning risk during assembly. In field operation, especially in high-humidity or condensing environments, surface mount devices remain vulnerable to electrochemical migration if contamination (e.g., flux residue, ionic deposits) is present. Always follow IPC-J-STD-001 cleaning guidelines post-assembly, and consider conformal coating in harsh environments to prevent dendrite formation that could short the TVS or adjacent traces, compromising long-term reliability.
Quality Assurance (QC)
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P6SMB250CA CAD Models
NextGen Components P6SMB250CA PCB symbols & footprints
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