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SI4431 — qfn32 package (representative)
qfn32
Representative of package type
Silicon Labs

SI4431

RF Transceiver · 20-QFN · Wireless
Part Status: NRND
Manufacturer
Silicon Labs
Mfr Part #
SI4431
Series
Si443x
Category
RF Transceiver
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
Frequency Range240-930 MHz
ModulationGFSK/OOK
Tx Power+13 dBm
Physical & Thermal
Package / Case20-QFN
Mounting TypeSurface Mount
SeriesSi443x
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryRF Transceiver
TypeWireless
Part StatusNRND

ISM-band transceiver, 240-930 MHz, GFSK/OOK, +13 dBm

Environmental & Export Classifications

RoHS Status
RoHS Compliant
REACH Status
Moisture Sensitivity (MSL)
ECCN
HTSUS

Part Activity

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Engineering FAQ

answers from this part's real data
What are the key specifications of SI4431?
Frequency Range: 240-930 MHz; Modulation: GFSK/OOK; Tx Power: +13 dBm.
What package is SI4431 supplied in?
SI4431 is supplied in the 20-QFN package, surface mount, rated -40°C ~ 85°C.
Can ZDI source SI4431 beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
Source-country supplier analysis, rating & review
Incoming inspection, RoHS verification, bake, full lot traceability
ESD-controlled handling · authentic parts guaranteed

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