Imagine a water meter buried in a concrete pit, still reporting its levels every hour for five years. Or a fleet of containers crossing a border, each one pinging its location without a GPS chip.
It takes Semtech’s LLCC68 — the industry’s trusted LoRa core—and wraps it with a discrete power amplifier (PA) and a low-noise amplifier (LNA). The result: you can transmit at +33 dBm (2 W) while still hearing signals down to -148 dBm. In plain English: it shouts loud enough to reach a gateway 15 km away in open country, and it listens softly enough to catch the faintest reply from a sensor at the edge of the farm.
The module covers all major Sub-1GHz ISM bands (169, 433, 868, 915 MHz) and plays perfectly with LoRaWAN® stacks. Use it in gateways that need to cover a whole city, or in end‑nodes that must run for years on a single battery.
33 dBm Output + -148 dBm Sensitivity
That’s a link budget that chews through concrete, trees, and distance. Whether you’re in a dense urban canyon or a rural valley, the link stays up.
LoRaWAN® Ready
The physical layer is pure LoRa, so hooking it to The Things Network, ChirpStack, or any LoRaWAN server is plug‑and‑play.
RF Design You Can Trust
We used a 4‑layer PCB with controlled impedance and a shielded can. No weird harmonics, no spurious emissions—just clean, reliable RF.
Full Access to the LLCC68
Every pin is broken out. You want to tweak the sleep states, bit‑bang a custom protocol, or add an external sensor? Go ahead.
Sleeps at 0.2 µA
That’s practically off. Your battery won’t even notice it’s there between transmissions.
| Parameter | Value |
|---|---|
| Core IC | Semtech LLCC68 |
| 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 | 1200 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 |
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.
| Order Code | Core | Frequency | Power | Best For |
|---|---|---|---|---|
| N427BS-169M | LLCC68 | 160–175 MHz | +33 dBm | EU telemetry, 169 MHz apps |
| N427BS-433M | LLCC68 | 410–510 MHz | +33 dBm | Global IoT, 433 MHz ISM |
| N427BS-868M | LLCC68 | 860–880 MHz* | +33 dBm | EU LoRaWAN®, 868 MHz |
| N427BS-915M | LLCC68 | 910–930 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 × N427BS module (tape & reel available for volume)
Quick start guide
Link to online docs and example code
| 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.
| 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 LLCC68 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 |
Not sure which LLCC68 module fits your project? Here’s how they stack up.
| Model | Power | PA+LNA | Form Factor | Best Use Case |
|---|---|---|---|---|
| N401BS | +22 dBm | No | SMD | Battery‑powered short‑range sensors |
| N425BS | +27 dBm | No | SMD | Cost‑sensitive end‑nodes, basic gateways |
| N426BS | +30 dBm | Yes | SMD | Long‑range end‑nodes, budget gateways |
| N427BS | +33 dBm | Yes | SMD | Long‑range gateways, high‑performance end‑nodes |
| N428BS | +37 dBm | Yes | SMD + shielding | Harsh industrial, extreme range |
All modules: SPI interface, IPEX + stamp‑hole antenna, full SDK access.
Short range, ultra‑low power sensor? → N401BS
Balancing cost and range for an end‑node? → N426BS
Need maximum range with full developer control? → N427BS (this one)
Industrial environment with high EMI? → N428BS
📄 Download the N427BS datasheet (PDF)
📘 LLCC68 reference manual & design guide
🧪 Order samples or an evaluation board
📞 Talk to a technical sales engineer
Specifications subject to change. Real-world performance depends on antenna, environment, and system design.