Hot Swap Controllers
Hot swap controllers and live-insertion protection ICs enable safe insertion and removal of circuit boards in powered backplanes and server systems by controlling inrush current and providing overcurrent/short-circuit protection. Available from TI, ADI (LTC), onsemi, and Microchip.
Product Series & Base Models
Navigate by model series to compare ordering variants and technical specifications within the Hot Swap Controllers family.
Browse Hot Swap Controllers Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| UCC3921D/81143G4 | Texas Instruments | — | 6,551 | |
| UCC3919PWTR | Texas Instruments | — | 5,100 | |
| UCC3921NG4 | Texas Instruments | — | 7,836 | |
| UCC3919PWTRG4 | Texas Instruments | — | 2,960 | |
| UCC3919PWG4 | Texas Instruments | — | 13 | |
| UCC3919DG4 | Texas Instruments | — | 1,671 | |
| UCC3919DTR | Texas Instruments | — | 30,000 | |
| UCC3919DTRG4 | Texas Instruments | — | 833 |
Top Hot Swap Controllers Manufacturers
onsemi
onsemi Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
28,226 productsRenesas
Renesas Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
74,605 products
Infineon Technologies
Infineon Technologies Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
20,310 products
NXP Semiconductors
NXP Semiconductors Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
20,288 products
Microchip Technology
Microchip Technology Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
67,462 products
Texas Instruments
Texas Instruments Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
84,045 products
Diodes Incorporated
Diodes Incorporated Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
16,703 products
Analog Devices
Analog Devices Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
82,970 products
STMicroelectronics
STMicroelectronics Hot Swap Controllers products are available for part-number review, stock checks, and RFQ support.
19,050 productsAbout Hot Swap Controllers
Hot Swap Controller ICs are specialized power management devices designed to allow circuit boards, line cards, or external drives to be safely inserted into and removed from a live, powered backplane or server chassis without causing voltage dips, electrical arcs, or destructive inrush current spikes. By driving an external N-channel power MOSFET to gradually ramp up the output voltage, hot swap controllers ensure complete system stability during live insertion.
These controllers are vital in high-availability systems such as data center servers, telecom base stations, and redundant industrial controllers. Key selection parameters include input voltage range (typically 3V to 80V+), programmable inrush current slew rate, short-circuit current limiting, power-good status outputs, latch-off vs. auto-retry fault behavior, and integrated dual-gate drive or current monitoring for advanced telemetry.
Browse and source hot swap controllers on Octatronics from industry leaders including Texas Instruments, Analog Devices (LTC and MAX series), onsemi, and Microchip. Compare specifications, verify package sizes, and submit your RFQ online for production volumes.
Frequently Asked Questions
Octatronics can help source a wide range of Hot Swap Controllers 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.