Wireless RF Modules and dongles for IoT | Coral RF

N427CS is a LoRa module based on the SX1261, with discrete PA and LNA. +33 dBm output (2 W), –148 dBm sensitivity, 15 km range in open terrain. Covers 169, 433, 868, 915 MHz ISM bands, LoRaWAN‑compatible.Suited for city‑wide gateways and battery‑powered nodes – water meters, asset trackers – running years on a single cell.

Key Features – What Makes It Different

N427CS delivers +33 dBm and –148 dBm sensitivity on a shielded 4‑layer PCB.
LoRaWAN‑compatible, all SX1261 pins accessible, 10 µA standby.
Reliable RF for gateways and battery‑sensing nodes.

Technical Specifications

Parameter	Value
Core IC	Semtech SX1261
Frequency Bands	169 MHz, 433 MHz, 868 MHz, 915 MHz (variant dependent)
Max Output Power	+33 dBm
RX Sensitivity	-148 dBm (LoRa®, typ.)
Data Rate	0 – 62.5 kbps (LoRa®)
Modulation	LoRa®, (G)FSK, BPSK
Supply (Core)	3.3 V
Supply (PA)	5.0 V (4.5 V – 5.5 V)
TX Current @33 dBm	1000 mA (peak – lasts only milliseconds)
RX Current	15 mA (typ.)
Standby Current	10 µA
Interface	SPI
Antenna Connection	50Ω pad or IPEX connector
PCB	4‑layer, impedance controlled
Dimensions	36 mm × 24 mm × 3 mm
Operating Temp	-40°C to +80°C

Where Would You Use It?

LoRaWAN® Gateways – Need a gateway that covers a whole town? This module gives you the range.
Smart Meters (AMR/AMI) – Water, gas, electricity meters that phone home from basements and pits.
Industrial Sensors – Tank levels, vibration monitors, air quality sensors in remote locations.
Asset Trackers – Follow containers, pallets, or vehicles across continents without a cellular bill.
Smart Agriculture – Soil moisture, livestock tracking, irrigation control across thousands of acres.
Smart City – Parking sensors buried in asphalt, waste bins that report when they’re full.

Ordering Information

Order Code	Core	Frequency	Power	Best For
N427CS-169M	SX1261	160–175 MHz	+33 dBm	EU telemetry, 169 MHz apps
N427CS-433M	SX1261	410–510 MHz	+33 dBm	Global IoT, 433 MHz ISM
N427CS-868M	SX1261	860–960 MHz*	+33 dBm	EU LoRaWAN®, 868 MHz
N427CS-915M	SX1261	860–960 MHz*	+33 dBm	Americas LoRaWAN®, 915 MHz

Typical centre frequency: 868 MHz or 915 MHz – please specify when ordering.

What’s in the Box

1 × N427CS module (tape & reel available for volume)
Quick start guide
Link to online docs and example code

Regulatory & Compliance

Region	Standards	Status
EU	EN 300 220, EN 301 489, EN 60950	Compliant
US	FCC Part 15	Pre‑scanned, modular approval pending
Global	RoHS, REACH	Compliant

Need certification support? Contact our compliance team.

Why Engineers Choose the N427CS

What matters	How we deliver it
Range	+33 dBm PA + -148 dBm LNA – link budget that works
Battery life	10 µA sleep current – years between battery changes
Design flexibility	Full SX1261 pinout – no black boxes
Global use	One module, four frequency variants – simplify inventory
Toughness	-40°C to +80°C, 4‑layer PCB, shielded
Cost	Value‑engineered for high‑volume deployment

Compare the Family

Not sure which SX1261 module fits your project? Here’s how they stack up.

Model	Power	PA+LNA	Form Factor	Best Use Case
N401CS	+22 dBm	No	SMD	Battery‑powered short‑range sensors
N426CS	+30 dBm	Yes	SMD	Long‑range end‑nodes, budget gateways
N427CS	+33 dBm	Yes	SMD	Long‑range gateways, high‑performance end‑nodes
N428CS	+37 dBm	Yes	SMD + shielding	Harsh industrial, extreme range