What are the key specifications of the 2R300SM-G?

It features a 300V DC spark-over voltage, 2kA impulse discharge current, 0.5pF maximum capacitance, and a compact 4.5mm x 3.2mm x 2.7mm SMD package.

What is the pinout of 2R300SM-G?

Use the 2R300SM-G datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about 2R300SM-G pinout to locate pins, power rails, and interface signals before layout.

2R300SM-G Datasheet, Specs, Alternatives & ECAD | Liown

AI summary

The 2R300SM-G is a 300V surface-mount Gas Discharge Tube (GDT) designed for transient voltage protection in communication and alarm systems.

Best for

Telecommunications
Data communication equipment
Alarm systems

Avoid if

High-voltage power lines exceeding GDT ratings

Check before use

Peak surge current requirements
Operating voltage margins

Key specifications

DC Spark-over Voltage: 300V
Impulse Discharge Current: 2kA
Capacitance: ≤0.5pF

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: 1
ECCN: -
HTSUS: -

Application

TelecommunicationsAlarm Systems

Datasheet

fcad8d74b5ad23d0cadcdf6012d10acb_2306011003_Liown-2R300SM-G_C6936436.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 2R300SM-G: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Part	Details	Match
2R470SM-GManufacturer	2R470SM-G is a Conditional Drop-in for 2R300SM-G, because output current rating covers the original; review the narrower temperature rating.	Has caveats

2RL600M-6-SManufacturer	URL can't contain control characters. '/component/docs/cf4f37547b83417f381a64371f431281_2201131100_Brightking-2RL600M-6-S_C769887.pdf, https://s3.lax.sharktech.net/viassion/datasheets/hqonline/ab2664cb6ad910ca8f3d3a9bfedab460.pdf, https://file.elecfans.com/web2/M00/44/98/poYBAGKF-mqAV0trAAUINH1z3R0527.pdf' (found at least ' ')	Has caveats
2RP470M-8Manufacturer	'ascii' codec can't encode characters in position 64-67: ordinal not in range(128)	Has caveats
BF122MManufacturer	Expecting ',' delimiter: line 142 column 8 (char 4869)	Has caveats
BM471MManufacturer	URL can't contain control characters. '/component/docs/69f70b1628f95109ff83d287cbc93af3_2110250930_Bencent-BM471M_C2909703.pdf, https://s3.lax.sharktech.net/viassion/datasheets/hqonline/58ba83e6653a7e03d202af5de8dac016.pdf, https://file.elecfans.com/web2/M00/21/B3/pYYBAGGkon2AM0k6AAQ3llX4rEk768.pdf' (found at least ' ')	Has caveats
SX50-152XSMDTManufacturer	Expecting ',' delimiter: line 64 column 6 (char 2345)	Has caveats
SX50-800X-SGManufacturer	Expecting ',' delimiter: line 131 column 4 (char 4808)	Has caveats
SXH80-600XManufacturer	Expecting ',' delimiter: line 133 column 6 (char 4368)	Has caveats

Design and risk insights

Questions & answers

It is a 2-electrode Gas Discharge Tube (GDT) from Liown, used for protecting sensitive electronic equipment from transient voltage surges.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the 2R300SM-G?+×

What are the key specifications of the 2R300SM-G?+×

What is the pinout of 2R300SM-G?+×