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Home > Products > Integrated Circuits (ICs) > Specialized ICs > SOMC-1403-220G
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SOMC-1403-220G

Manufacturer Part Number:
SOMC-1403-220G
Manufacturer / Brand
VISHAY
Part of Description:
VISHAY SMD
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 3900 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number SOMC-1403-220G
Manufacturer / Brand VISHAY
Stock Quantity 3900 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description VISHAY SMD
Lead Free Status / RoHS Status: RoHS Compliant
Condition New Original Stock
Warranty 100% Perfect Functions
Lead Time 2-3days after payment.
Payment Credit Card / PayPal / Telegraphic Transfer (T/T) / Western Union
Shipping by DHL / Fedex / UPS / TNT
Port HongKong
RFQ Email Info@IC-Components.com

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

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Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can the VISHAY SOMC-1403-220G be used in a high-vibration industrial environment without additional mechanical reinforcement?
The VISHAY SOMC-1403-220G is an SMD resistor network designed for standard surface-mount applications. While it meets typical board-level reliability standards, prolonged exposure to high vibration may lead to solder joint fatigue over time. For industrial environments with sustained mechanical stress, consider using conformal coating or underfill to enhance mechanical stability, and verify long-term performance through accelerated life testing under expected conditions.
What are the key thermal considerations when placing multiple SOMC-1403-220G devices in close proximity on a high-density PCB?
The SOMC-1403-220G has a power rating of 0.125 W per resistor and a thermal resistance that increases with component density. When placing multiple units near each other, localized heat accumulation can reduce effective derating and affect resistance stability. Maintain at least 2 mm spacing between adjacent devices and ensure adequate copper pour or thermal vias to dissipate heat, especially in enclosed or poorly ventilated enclosures.
Is the VISHAY SOMC-1403-220G suitable for 5V digital logic pull-up applications in a mixed-voltage system with 3.3V and 5V domains?
Yes, the SOMC-1403-220G can be used in 5V pull-up applications, but care must be taken when interfacing with 3.3V logic inputs. The 220 Ω resistance value results in a pull-up current of approximately 22.7 mA at 5V, which may exceed the input current tolerance of some 3.3V CMOS devices. Use level-shifting circuitry or verify input current specifications to prevent damage or signal integrity issues.
Can the SOMC-1403-220G be directly replaced with a Bourns 4610X-101-221LF in a legacy design without redesigning the PCB footprint?
The Bourns 4610X-101-221LF has a similar 220 Ω resistance value and SMD package, but its pinout and pad layout differ slightly from the VISHAY SOMC-1403-220G. Direct drop-in replacement is not recommended without verifying footprint compatibility. A PCB layout review is required to ensure proper solder joint formation and electrical connectivity, especially in high-reliability applications.
How does the tolerance and temperature coefficient of the SOMC-1403-220G affect signal integrity in precision analog signal conditioning circuits?
The SOMC-1403-220G typically features ±2% tolerance and a TCR of ±100 ppm/°C. In precision analog applications such as differential amplifiers or sensor interfaces, mismatched resistor values can degrade common-mode rejection ratio (CMRR) and introduce gain errors. For such use cases, consider using tighter-tolerance, low-TCR alternatives or perform system-level calibration to compensate for drift over temperature.
What are the long-term reliability risks of using the SOMC-1403-220G in a high-humidity environment without protective coating?
In high-humidity environments, moisture ingress can lead to electrochemical migration or corrosion at the terminations of the SOMC-1403-220G, especially under DC bias. This may result in increased leakage current or eventual open-circuit failure. For operation above 85% relative humidity, apply a conformal coating such as acrylic or silicone to protect the device and maintain long-term reliability.
Can the VISHAY SOMC-1403-220G be used in a 12V automotive power rail for current sensing or LED driving applications?
The SOMC-1403-220G is rated for a maximum working voltage of 70 V and can technically handle 12V rails. However, in automotive environments, transient spikes (e.g., load dump) can exceed nominal voltages. Without external transient suppression, repeated exposure to voltage surges may degrade the resistor network. Use TVS diodes or clamping circuits to protect the SOMC-1403-220G in such applications.
What design precautions should be taken when using the SOMC-1403-220G in a high-speed digital bus termination scheme?
When used for bus termination (e.g., I2C, SPI), the 220 Ω value of the SOMC-1403-220G may not provide optimal impedance matching for high-speed signals. Additionally, parasitic inductance from the SMD package can introduce signal reflections at frequencies above 50 MHz. Evaluate signal integrity through simulation or TDR measurements, and consider lower-inductance alternatives or distributed termination strategies for frequencies beyond 100 MHz.
Is it advisable to use the SOMC-1403-220G in a safety-critical circuit requiring redundancy or fault tolerance?
The SOMC-1403-220G is a passive resistor network without built-in fault detection or redundancy. In safety-critical systems (e.g., ISO 26262 or IEC 61508), single-point failures in pull-up or termination networks can lead to system malfunctions. For such applications, implement dual-channel designs with independent components or use diagnostic-capable alternatives to meet functional safety requirements.
How does the aging behavior of the SOMC-1403-220G compare to thin-film alternatives in a 10-year industrial deployment?
The SOMC-1403-220G uses thick-film technology, which typically exhibits higher resistance drift over time compared to thin-film counterparts—especially under elevated temperature and humidity. Over a 10-year lifespan, resistance shift may exceed 1% under continuous load. For applications requiring long-term stability, evaluate thin-film resistor networks with lower aging rates, even if they come at a higher initial cost.

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