Circuit Protection
Circuit protection devices safeguard electronic systems against overcurrent, overvoltage, electrostatic discharge (ESD), and transient voltage spikes that can damage sensitive ICs and cause system failures. Octatronics catalogs fuses, TVS diodes, varistors, gas discharge tubes (GDTs), PTC resettable fuses, and ESD suppressors from Littelfuse, Bourns, Vishay, Nexperia, and onsemi.
Explore Circuit Protection Subcategories
Product Series & Base Models
Navigate by model series to compare ordering variants and technical specifications within the Circuit Protection family.
Browse Circuit Protection Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| SZESD9X3.3ST5G | onsemi | ESD Protection Diode, 8000-REEL | 83 | |
| SZESD9X12ST5G | onsemi | ESD Protection Diode, SOD-923, 1.0x0.6, 0.43 Max Height, 8000-REEL | 288,000 | |
| SZESD9R3.3ST5G | onsemi | TVS Diode, 3.3V, 0.9pF, Unidirectional, SOD-923 | 200 | |
| SZESD9B5.0ST5G | onsemi | ESD Protection Diodes, Bidirectional, SOD-923, 1.0x0.6, 0.40 Max Height, 8000-REEL | 360 | |
| SZESD9B3.3ST5G | onsemi | ESD Protection Diodes, Bidirectional, 8000-REEL | 7,093 | |
| SZESD9902MLT1G | onsemi | LC ESD DUAL, 100V TRIGGER IN SOT | 55 | |
| SZESD9101P2T5G | onsemi | TVS Diode, Low Capacitance, ESD Protection, High Speed | 7,630 | |
| SZESD8551MXWT5G | onsemi | TVS DIODE 3.3VWM 16VC 2X2DFNW | 432,000 | |
| SZESD8472MUT5G | onsemi | Ultra-Low Capacitance RF ESD Protection Ultra-Low Capacitance RF ESD Protection, 10000-REEL | 85 | |
| SZESD8351XV2T1G | onsemi | Unidirectional SCR ESD Protection, 3000-REEL | 378,000 |
How to Choose Circuit Protection
A practical selection framework for Circuit Protection covering specifications, packaging, lifecycle, and sourcing on Octatronics.
Define electrical and environmental requirements
Start with the required function and operating conditions for Circuit Protection, then lock in critical parameters such as electrical ratings, package footprint, temperature grade, and compliance requirements. Match these against datasheet limits, not catalog summaries alone.
Validate package and land pattern compatibility
Confirm the Circuit Protection package matches your PCB footprint, pick-and-place constraints, and moisture sensitivity handling. Verify reel/tape or tube packaging for production.
Check lifecycle, compliance, and alternates
Review lifecycle status (Active, NRND, EOL), RoHS, and approved alternate sources for Circuit Protection before committing to high-volume builds. Use Octatronics cross-reference data when a drop-in replacement is needed.
Compare manufacturers and request pricing
Filter Circuit Protection by manufacturers such as onsemi and ROHM, compare key specs side by side, then submit an RFQ with quantity, target delivery, and traceability requirements.
Top Circuit Protection Manufacturers
onsemi
onsemi Circuit Protection products are available for part-number review, stock checks, and RFQ support.
28,226 productsROHM
ROHM Circuit Protection products are available for part-number review, stock checks, and RFQ support.
3,980 productsTE Connectivity
TE Connectivity Circuit Protection products are available for part-number review, stock checks, and RFQ support.
6,241 productsVishay
Vishay Circuit Protection products are available for part-number review, stock checks, and RFQ support.
9,347 products
Nexperia
Nexperia Circuit Protection products are available for part-number review, stock checks, and RFQ support.
3,317 productsPanjit
Panjit Circuit Protection products are available for part-number review, stock checks, and RFQ support.
687 products
Infineon Technologies
Infineon Technologies Circuit Protection products are available for part-number review, stock checks, and RFQ support.
20,310 products
NXP Semiconductors
NXP Semiconductors Circuit Protection products are available for part-number review, stock checks, and RFQ support.
20,288 products
Microchip Technology
Microchip Technology Circuit Protection products are available for part-number review, stock checks, and RFQ support.
67,462 products
Texas Instruments
Texas Instruments Circuit Protection products are available for part-number review, stock checks, and RFQ support.
84,045 productsAbout Circuit Protection
Frequently Asked Questions
Octatronics can help source a wide range of Circuit Protection from major manufacturers worldwide, including active production parts, long-lead-time items, and hard-to-find components.
Yes. You can submit a single part number or upload a BOM with multiple parts. Our team will check stock, date code, lead time, and pricing for each item.
Availability depends on the specific part number and supplier source. For important orders, buyers can request packaging photos, labels, date code information, and traceability documents.
Yes. Octatronics supports sourcing for active, end-of-life, obsolete, and hard-to-find components through our global supplier network.
Please provide the part number, manufacturer, quantity, required date code, target price, delivery country, and whether original packaging or COC is required.