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SMF100CA
Diotec Semiconductor
TVS SOD123FL 100V 200W BIDIR
225249 Pcs New Original In Stock
162V Clamp 1.23A Ipp Tvs Diode Surface Mount SOD-123F (SMF)
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5.0 / 5.0
- (152 Ratings)
SMF100CA
Product Overview
9446671
DiGi Electronics Part Number
SMF100CA-DGManufacturer
Diotec Semiconductor
SMF100CA
Description
TVS SOD123FL 100V 200W BIDIRInventory
225249 Pcs New Original In Stock
162V Clamp 1.23A Ipp Tvs Diode Surface Mount SOD-123F (SMF)
Quantity
Minimum 1
Minimum 1
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SMF100CA Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
-
Series
-
Product Status
Active
Type
Zener
Bidirectional Channels
1
Voltage - Reverse Standoff (Typ)
100V
Voltage - Breakdown (Min)
111V
Voltage - Clamping (Max) @ Ipp
162V
Current - Peak Pulse (10/1000µs)
1.23A
Power - Peak Pulse
200W
Power Line Protection
No
Applications
General Purpose
Capacitance @ Frequency
-
Operating Temperature
-50°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
SOD-123F
Supplier Device Package
SOD-123F (SMF)
Datasheet & Documents
HTML Datasheet
SMF100CA-DG
Environmental & Export Classification
RoHS Status
Not applicable
Moisture Sensitivity Level (MSL)
Not Applicable
REACH Status
Vendor Undefined
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
2796-SMF100CATR
Standard Package
3,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Les options de livraison sont variées et très rapides, ce qui me laisse une grande liberté.
Dec 02, 2025
Their after-sales support is responsive and solves problems quickly, which I value highly.
Dec 02, 2025
The durability of the product is apparent from its solid feel and build quality.
Dec 02, 2025
The packaging kept everything secure, and the product itself has proven to be very resilient.
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Frequently Asked Questions (FAQ)
When designing in the SMF100CA for automotive load dump protection, what are the key risks related to its 162V clamping voltage and how does it compare to the Littelfuse SMAJ100A in high-energy transients?
When using the SMF100CA for automotive applications involving load dump transients, its 162V clamping voltage at 1.23A (10/1000µs) may be too high for 100V-rated downstream components, risking insulation breakdown or MOSFET gate damage. The Littelfuse SMAJ100A offers a lower clamping voltage of 150V under similar conditions, providing better protection margin. Always verify that the protected IC's maximum transient voltage rating exceeds 162V; otherwise, consider a lower-voltage TVS or cascaded protection. The SMF100CA is suitable for general transients but may not suffice in high-energy automotive scenarios without additional circuit margin analysis.
Can the SMF100CA be reliably used in parallel to increase peak pulse power handling in a 100V industrial power supply, and what are the associated failure risks?
Parallel use of SMF100CA TVS diodes to increase peak power handling is not recommended due to potential current imbalance caused by slight variations in breakdown voltage (min 111V) and dynamic impedance. One device may conduct earlier, exceeding its 200W peak pulse rating and leading to thermal runaway. Instead, use a single higher-rated device like the SMAJ100CA (400W) or consider a robust transient filter stage upstream. For critical designs, validate clamping behavior under fault conditions using transient simulation tools to avoid premature SMF100CA failure.
How does the SOD-123F package of the SMF100CA impact thermal performance in high ambient temperature environments up to 125°C, and what PCB layout practices minimize thermal stress?
The SOD-123F package of the SMF100CA has limited thermal mass; in environments above 100°C, repeated transient events can accumulate junction temperature near its 150°C max limit, increasing failure risk. To reduce thermal stress, use wide copper traces (≥2mm), multiple vias to ground planes, and minimize trace length between the SMF100CA and protected node. Avoid placing near heat sources like switching regulators. Validate thermal performance with pulsed Ipp testing at elevated temperature to ensure long-term SMF100CA reliability in industrial control systems.
Is the SMF100CA a suitable drop-in replacement for the Bourns CDSOT23-SM100C in bidirectional ESD protection on communication lines operating at 90V DC?
The SMF100CA can replace the Bourns CDSOT23-SM100C in bidirectional ESD protection for 90V DC lines, but caution is required due to differences in clamping behavior and package robustness. Both have similar standoff voltages (100V), but the CDSOT23-SM100C is optimized for lower-capacitance high-speed data lines, while the SMF100CA lacks specified capacitance and is better suited for lower-frequency or power-related signals. Verify signal integrity and ESD recovery; in high-speed designs, the SMF100CA might introduce unintended transient response or ringing due to uncontrolled parasitics.
What are the long-term reliability concerns when operating the SMF100CA near its maximum junction temperature of 150°C in intermittent surge conditions, and how can derating improve lifespan?
Operating the SMF100CA near its 150°C TJ limit during repeated surges accelerates degradation due to thermal cycling and increased leakage current. To improve reliability, apply a 20% derating rule—limit the maximum expected junction temperature to 120°C. This reduces thermal stress on the Zener junction and bond wires. Implement thermal monitoring, increase copper area for heatsinking, and ensure surge events are spaced to allow cooling. Derating significantly enhances SMF100CA lifespan, especially in industrial motor drives or solar inverters with frequent transients.
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.
SMF100CA CAD Models
Diotec Semiconductor SMF100CA PCB symbols & footprints
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