{"id":9633,"date":"2026-07-04T13:55:51","date_gmt":"2026-07-04T13:55:51","guid":{"rendered":"https:\/\/materialparts.com\/rfm98w-433s2r\/"},"modified":"2026-07-04T13:55:51","modified_gmt":"2026-07-04T13:55:51","slug":"rfm98w-433s2r","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/rfm98w-433s2r\/","title":{"rendered":"RFM98W-433S2R"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The RFM98W-433S2R is a 433MHz ISM band LoRa transceiver module from RF Solutions based on the Semtech SX1272 transceiver chip. Using Chirp Spread Spectrum (LoRa) modulation, this module achieves up to 15km line-of-sight range with -148dBm receiver sensitivity at 18bps (SF=12). The module also supports FSK, GFSK, MSK, GMSK, and OOK modulation, communicating via SPI interface with the host, in a compact 16 x 16mm form factor.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Frequency<\/td>\n433 MHz ISM Band<\/td>\n<\/tr>\n
Modulation<\/td>\nLoRa, FSK, GFSK, MSK, GMSK, OOK<\/td>\n<\/tr>\n
Max Output Power<\/td>\n+20 dBm<\/td>\n<\/tr>\n
Receiver Sensitivity (LoRa)<\/td>\n-148 dBm @ 18bps (SF12)<\/td>\n<\/tr>\n
Receiver Sensitivity (FSK)<\/td>\n-119 dBm @ 1.2kbps<\/td>\n<\/tr>\n
Data Rate (LoRa)<\/td>\nUp to 37.5 kbps<\/td>\n<\/tr>\n
Data Rate (FSK)<\/td>\nUp to 250 kbps<\/td>\n<\/tr>\n
Range (LoS)<\/td>\nUp to 15 km<\/td>\n<\/tr>\n
Interface<\/td>\nSPI<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.8V to 3.6V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-20\u00b0C to +70\u00b0C<\/td>\n<\/tr>\n
Dimensions<\/td>\n16 x 16 x 1.8 mm<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • LoRa Chirp Spread Spectrum for extended range communication<\/li>\n
  • Ultra-high receiver sensitivity of -148dBm for deep penetration<\/li>\n
  • Up to 15km line-of-sight communication range<\/li>\n
  • Multiple modulation schemes: LoRa, FSK, GFSK, OOK<\/li>\n
  • Forward Error Correction (FEC) with selectable coding rate<\/li>\n
  • Packet engine up to 256 bytes with CRC<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automated meter reading (AMR)<\/li>\n
    • Home and building automation<\/li>\n
    • Wireless alarm and security systems<\/li>\n
    • Industrial monitoring and control<\/li>\n
    • Long-range IoT communication<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The RFM98W-433S2R is a 433MHz ISM band LoRa transceiver module from RF Solutions based on the Semtech SX1272 transceiver chip. Using Chirp Spread Spectrum (LoRa) modulation, this module achieves up to 15km line-of-sight range with -148dBm receiver sensitivity at 18bps (SF=12). The module also supports FSK, GFSK, MSK, GMSK, and OOK modulation, communicating […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[896],"chip_brand":[895],"class_list":["post-9633","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-rfm98w-433s2r","chip_brand-rf-solutions"],"acf":{"brief_explanation":"433MHz LoRa transceiver, -148dBm, +20dBm, SPI, 16x16mm, SX1272 based, up to 15km range","date_code":"","package_case":"SMD Module (16 x 16 x 1.8 mm)","in_stock":6870,"datasheet":"https:\/\/www.hoperf.com\/modules\/lora\/RFM98W.html","price":"$4.20 @ 1ku","product_introduction":"The RF Solutions RFM98W-433S2R is a high-performance LoRa transceiver module operating in the 433MHz ISM band, based on the Semtech SX1272 chipset. The module employs LoRa (Long Range) Chirp Spread Spectrum modulation technology to achieve exceptional communication range of up to 15km line-of-sight, with outstanding receiver sensitivity of -148dBm. This makes it ideal for applications requiring long-range, low-power wireless connectivity in challenging RF environments. In addition to LoRa modulation, the module supports conventional FSK, GFSK, MSK, GMSK, and OOK modulation schemes for compatibility with existing systems. The integrated packet engine handles CRC, FEC, and data packing up to 256 bytes, reducing host processor overhead. Communication with the host is via a standard SPI interface, and the module includes an integrated temperature sensor and low-battery indicator.","working_principle":"The RFM98W-433S2R operates as a half-duplex transceiver controlled via SPI by a host microcontroller. In LoRa mode, the SX1272 chipset uses Chirp Spread Spectrum (CSS) modulation where data symbols are encoded as chirp signals that sweep across the channel bandwidth. The spreading factor (SF7 to SF12) trades data rate for range: higher SF provides better sensitivity at lower data rates. The receiver uses a matched filter to correlate incoming chirps, achieving -148dBm sensitivity at SF12. In FSK mode, the carrier frequency is shifted between mark and space frequencies at data rates up to 250kbps. The 127dB dynamic range RSSI enables co-channel interference detection. Forward Error Correction (CR=4\/5 to 4\/8) adds redundancy bits to the payload for error correction without retransmission. The transmitter can output up to +20dBm with programmable PA boost and ramp control for spectral compliance.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Power<\/td>Ground connection<\/td><\/tr>
      2<\/td>MISO<\/td>Output<\/td>SPI master-in slave-out data<\/td><\/tr>
      3<\/td>MOSI<\/td>Input<\/td>SPI master-out slave-in data<\/td><\/tr>
      4<\/td>SCK<\/td>Input<\/td>SPI clock<\/td><\/tr>
      5<\/td>NSS<\/td>Input<\/td>SPI chip select (active low)<\/td><\/tr>
      6<\/td>RESET<\/td>Input<\/td>Module reset (active low)<\/td><\/tr>
      7<\/td>DIO5<\/td>I\/O<\/td>Configurable digital I\/O<\/td><\/tr>
      8<\/td>GND<\/td>Power<\/td>Ground connection<\/td><\/tr>
      9<\/td>ANT<\/td>I\/O<\/td>RF antenna connection (50\u03a9)<\/td><\/tr>
      10<\/td>GND<\/td>Power<\/td>Ground connection<\/td><\/tr>
      11<\/td>VDD<\/td>Power<\/td>Supply voltage (1.8-3.6V)<\/td><\/tr>
      12<\/td>DIO0<\/td>I\/O<\/td>Configurable digital I\/O (IRQ)<\/td><\/tr><\/table>","application_scenarios":"
      • Automated meter reading and smart utility infrastructure<\/li>
      • Home and building automation with long-range links<\/li>
      • Wireless alarm and security system communication<\/li>
      • Industrial monitoring and remote sensor networks<\/li>
      • Long-range IoT communication for smart agriculture<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        RF Solutions<\/td>RFM95W-868S2<\/td>16x16mm<\/td>868MHz variant<\/td><\/tr>
        RF Solutions<\/td>RFM95W-915S2<\/td>16x16mm<\/td>915MHz variant<\/td><\/tr>
        HopeRF<\/td>RFM95W-433S2<\/td>16x16mm<\/td>SX1276 based, 433MHz<\/td><\/tr>
        Semtech<\/td>SX1272MB2xAS<\/td>Shield<\/td>SX1272 evaluation board<\/td><\/tr>
        Dragino<\/td>LoRa1276<\/td>16x16mm<\/td>SX1276 based 433MHz module<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=9633"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9633\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9633"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}