Semtech Corporation MPN encoding patterns, LoRa transceiver decoding, ESD protection, and handler guidance. Use when working with Semtech components or SemtechHandler.
Semtech has several product lines with different MPN structures:
SX[SERIES][VARIANT]-[PACKAGE]
| | | |
| | | +-- Package (QFN, etc.)
| | +-- Variant (frequency band, features)
| +-- Series (127x, 126x, 130x)
+-- Semtech Transceiver prefix
LR[SERIES][VARIANT]-[PACKAGE]
| | | |
| | | +-- Package code
| | +-- Variant (GNSS, features)
| +-- Series (1110, 1120, 1121)
+-- Long Range prefix
[FAMILY][SPEC][PACKAGE]
| | |
| | +-- Package suffix (P=SOT-23, T=SC70)
| +-- Clamping voltage/channels
+-- RCLAMP, SLVU, SM series
SX1276IMLTRT
| | | ||
| | | |+-- T = Tape and Reel
| | | +-- R = Reel packaging
| | +-- IMLT = IMLT package
| +-- 1276 = 868/915 MHz transceiver
+-- SX = Semtech Transceiver
RCLAMP0524P
| | |
| | +-- P = SOT-23 package
| +-- 0524 = 5V, 24A clamp
+-- RCLAMP = Rail clamp ESD protection
| Part | Frequency | Features |
|---|---|---|
| SX1276 | 868/915 MHz | High performance |
| SX1277 | 868/915 MHz | Lower power |
| SX1278 | 433/470 MHz | Lower frequency |
| SX1279 | 433/470 MHz | Variant |
| Part | Frequency | Features |
|---|---|---|
| SX1261 | 868/915 MHz | Low power, +15 dBm |
| SX1262 | 868/915 MHz | High power, +22 dBm |
| SX1268 | 433/490 MHz | Low frequency bands |
| Part | Description |
|---|---|
| SX1301 | 8-channel digital baseband (legacy) |
| SX1302 | 8-channel, lower power |
| SX1303 | 8-channel with enhanced features |
| Part | Features |
|---|---|
| LR1110 | LoRa + GNSS + WiFi scanning |
| LR1120 | Multi-band LoRa transceiver |
| LR1121 | Enhanced LR1120 |
| Part | Description |
|---|---|
| LLCC68 | Cost-optimized LoRa transceiver |
Rail clamp ESD protection for high-speed interfaces.
| Part | Channels | Clamping |
|---|---|---|
| RCLAMP0502A | 2 | 5V |
| RCLAMP0524P | 2 | 5V, 24A |
TVS diode arrays for data lines.
| Part | Description |
|---|---|
| SLVU2.8-4 | 2.8V, 4-channel |
TVS protection diodes.
| Part | Description |
|---|---|
| SM712 | TVS for RS-485 |
| SM15T33A | 33V TVS |
| Code | Package | Notes |
|---|---|---|
| QFN | QFN | Standard QFN |
| QFN24 | QFN-24 | 24-pin QFN |
| QFN32 | QFN-32 | 32-pin QFN |
| TQFN | TQFN | Thin QFN |
| SOT23 | SOT-23 | 3-pin SOT |
| SOT23L | SOT-23-6 | 6-pin SOT |
| SC70 | SC70 | Small package |
| DFN8 | DFN-8 | 8-pin DFN |
| IMLT | IMLT | LoRa module package |
| IMLTR | IMLT-TR | IMLT, tape and reel |
| TR | Tape & Reel | Packaging option |
| TRG | Tape & Reel (Green) | RoHS packaging |
// Package embedded in MPN suffix
RCLAMP0524P -> P = SOT-23
RCLAMP0524T -> T = SC70
| Prefix | Description |
|---|---|
| GN | ClearEdge clock/data |
| GS | Signal conditioners |
| Part | Description |
|---|---|
| GN2033 | Quad LVDS repeater |
| GS12090 | 12G video redriver |
| Part | Description |
|---|---|
| SC4238 | Buck converter |
| SC5501 | LED driver |
| Part | Description |
|---|---|
| SY8089 | Sync buck regulator |
| SY8113 | 3A sync buck |
// LoRa transceivers - extract full series (6 chars)
// SX1276IMLTRT -> SX1276
if (upperMpn.startsWith("SX127")) {
return extractUpToDigitsOrDash(upperMpn, 6);
}
// ESD protection - extract family name
// RCLAMP0524P -> RCLAMP
if (upperMpn.startsWith("RCLAMP")) {
return "RCLAMP";
}
// Extract from suffix after last hyphen
// SX1262-QFN24 -> QFN-24
// ESD parts encode package in MPN
// RCLAMP0524P -> P -> SOT-23
The handler supports multiple component types:
ComponentType.IC - for all Semtech ICsComponentType.RF_IC_SKYWORKS - for LoRa transceivers (RF)ComponentType.ESD_PROTECTION_NEXPERIA - for ESD protection devicesSX127x family - NOT compatible with SX126x (different API)
SX1261 <-> SX1262 - Compatible (different power output)
SX1262 <-> SX1268 - Compatible for overlapping frequencies
SX1302 <-> SX1303 - Gateway chips, compatible
LR11xx family - Compatible within family
isOfficialReplacement() Logic// Same series with different packages are compatible
// SX1261 and SX1262 are compatible (power difference)
// SX1302 and SX1303 are compatible (gateway chips)
// LR11xx series are compatible within family
// Different generations (SX127x vs SX126x) are NOT directly compatible
manufacturers/SemtechHandler.javaIC, RF_IC_SKYWORKS, ESD_PROTECTION_NEXPERIA| MPN | Description | Application |
|---|---|---|
| SX1276IMLTRT | 868/915 MHz LoRa | Long range IoT |
| SX1262IMLTRT | 868/915 MHz LoRa | Low power IoT |
| SX1302CSS | LoRa gateway | 8-channel gateway |
| LR1110IMLTRT | LoRa + GNSS | Asset tracking |
| LLCC68 | Low-cost LoRa | Consumer IoT |
| RCLAMP0524P | ESD protection | USB interfaces |
| SM712 | RS-485 TVS | Industrial comm |