Procurement Snapshot
| Procurement Field | Value |
|---|---|
| Exact MPN | SG90 |
| Manufacturer | Littelfuse |
| Package | 1812 |
| Availability | Request current stock and lead time by RFQ |
| Datasheet | Verified PDF |
Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Voltage – DC Spark Over (Nom) | 90V;500V |
| Impulse Discharge Current | 2kA |
| Operating Temperature Range | -40℃~+90℃ |
| Package | 1812 |
| Capacitance | 1pF |
| Number of Poles | 2 |
Product Overview
SG90 is a Gas Discharge Tube 90V 2kA 2 POLE Surface Mount 1812 from Littelfuse. The exact manufacturer order code is preserved for BOM, RFQ and incoming-inspection control. The verified package is 1812, and the verified functional category is Gas Discharge Tube Arresters (GDT). Confirmed selection data for this exact listing includes Voltage – DC Spark Over (Nom) 90V;500V, Impulse Discharge Current 2kA, Operating Temperature Range -40℃~+90℃, Package 1812.
Alternative Candidates
| MPN | Manufacturer | Package |
|---|---|---|
| K4532-090-LF | KUU | 1812 |
| 2051-09-SM-RPLF | BOURNS | 1812 |
| SMD4532-090NF | R+O | 1812 |
| JTS4532-090D | JDTfuse | 1812 |
| 4532-090 | R+O | 1812 |
| TPSMD4532-090NF | TECH PUBLIC | 1812 |
| SMD4532-090NF | Leiditech | 1812 |
| GSM090E | SPSEMI | 1812 |
| BTC900N | BORN | 1812 |
| SMD4532-090NB | BORN | 1812 |
These candidates are listed by LCSC. Verify electrical characteristics, pinout, package, qualification and application requirements before substitution.
For a lower DC breakdown option within Littelfuse’s 1812 SG gas-discharge-tube series, compare SG75 (75 V typical at 100 V/s) with SG90 (90 V typical at 100 V/s). Both are listed in the SG series datasheet, but the breakdown range differs; verify protection coordination rather than assuming equivalence.
Quality & RFQ Support
For quotation or inspection requirements, provide the exact MPN, quantity, destination, target Date Code if applicable, and any requested third-party testing before shipment.
