Paul Pickle
Analyst · Baird
Thank you, Mark. Semtech reported fourth quarter financial performance generally within my expectations with net sales slightly above the midpoint of guidance. I'll provide a bit more color on end-market performance and note end-market consumption sequentially increased in each of our end-markets. For the fourth quarter, Infrastructure net sales were $39.4 million, a sequential decline of 9% and largely driven by an expected pause in North American hyperscale data center deployment, and our intent to normalize channel inventories. For the fourth quarter, infrastructure POS sequentially increased approximately 14% and channel inventories declined as anticipated. In data center, we had strong market interest to continue for our FiberEdge TIAs and laser drivers for 400-gig and 800-gig optical modules.
Our market-leading 200 gig per lane product started production in Q1, with support from key hyperscalers, and we continue to support customers undertaking 1.6 optical module designs using our FiberEdge offerings. We are pleased to report design and activity for our newly announced Direct Edge platform of TIAs and laser drivers, enabling 800 gig linear pluggable optics or LPO modules. We demonstrated these products at the Optical Fiber Communication Conference this week with favorable market feedback, and we expect to begin shipping these products at the end of FY '25. In addition to recent advances in our data center optical portfolio, we are pleased with growing demand for our copper-edge linear re-drivers for 800-gig active copper cables, supporting AI and machine learning data center build-outs. Compared to DSP-based active electrical cables, our linear copper edge power requirements are over 80% lower, operates with significantly lower latency, and offers a cost advantage.
We are currently sampling our 200 gig per lane copper edge chips and are very excited to be partnering on designs into 1.6 T ACC applications. We expect 1.6 T design-in activity for both ACCs and optical modules to support leading edge, AI and ML data center deployments. Based on current design schedules and engagements with data centers, as well as with cable and module manufacturers, we expect shipments to begin to ramp for these 1.6 T designs at the end of FY '25. Moving to passive optical networks, we saw increased PON demand in the quarter, accelerating off of fairly low levels following the release of bidding tenders in the China market. Fourth quarter POS increased sequentially. And based on the first weeks of first quarter activity, average weekly POS is nearing FY '23 levels. Based on our analysis of recent tenders, PON demand includes both XG-PON and XGS-PON, supporting optical line terminal and optical network unit build-outs. Continued transition to 10 gig and higher speeds benefit Semtech based on our first-to-market position, our technical leadership and our superior product performance.
We expect the global transition to 10 gig and higher speed PON will partially offset the slowdown in real estate development in China. We are also pleased with our engagements to support XGS-PON deployments in North America. And though we are still in early innings, we expect demand trends requiring higher and higher speed access to the cloud will result in long-term market opportunities for Semtech in North America and EMEA. Regarding other products in the infrastructure end-market, wireless demand remains muted, though we are leveraging our expertise in data center market with demos at OFC aimed at 5G Advance, including Tri-Edge 50-gig combo drivers and copper-edge 50-gig ACCs. We are currently participating in qualifications of 50-gig front-haul systems and expect sales in the latter half of FY '25 for these products.
Further, we believe our recently announced products in the FiberEdge family for 100-gig ZR will provide groundbreaking improvements in network power efficiency and performance. For the first quarter of fiscal year 2025, we expect net sales from the infrastructure end-market to increase sequentially with PON applications leading to growth. For the fourth quarter, high-end consumer net sales were $32.1 million, a sequential decrease of 15%, coming off of a third quarter seasonal high for TVS products. Encouragingly, high-end consumer POS increased nominally in the fourth quarter compared to the third quarter, with proximity sensing offsetting an expected decrease in consumer TVS from smartphone seasonality. On a year-over-year basis, high-end consumer POS increased approximately 28%. Revenue and POS trends indicate normalizing channel inventory levels, though we would like to see further reductions, primarily through expectations for stronger end-market demand.
We believe market share for our consumer TVS products, particularly in USB Type C applications has increased as validated by fourth quarter POS levels that grew over 30% year-over-year, and exceeded both the first and second quarters of FY '24. Proximity sensing products benefited from specific absorption rate standards that went into effect in China at the beginning of the year. And what was expected to be a seasonally down quarter for handset production, fourth quarter proximity sensing sales and POS both increased sequentially, and year-over-year, indicating market adoption of Semtech's industry-leading per se sensing solution. Fourth quarter proximity sensing bookings were at their highest points in the fiscal year. In Chinese handset manufacturers, we believe we have a majority of the SAM for sensing products, and a substantially higher percentage in their high-end smartphone models.
For the first quarter, we expect net sales from the high-end consumer market to be flat to slightly up as we continue to evaluate channel inventory health. For the fourth quarter, industrial net sales were $121.5 million, up 1% sequentially and within expectations. IoT Systems reported fourth quarter net sales of $65.5 million, up 11% sequentially. Encouragingly, fourth quarter net sales for modules were up over 20% sequentially, benefiting from customer-requested shipments on certain end-of-life models and higher LPWA sales into smart metering and asset tracking applications. U.S. government focus on suppliers into critical infrastructure is also garnering attention in the European market where we have increased opportunities in markets such as smart metering and payment processing. We believe Semtech's advantages in ultra-low power consumption, scalability through our selection of worldwide bands and high transmit power, supplements our position as a trusted North American supplier.
Module and customer inventories and many applications remained elevated, though and visibility remains limited. As such, we believe time to meaningful recovery in this market will be extended. We continue to invest in the portfolio, though, expanding our 5G and Cat 1 bus offerings in the middle of FY '25. For the fourth quarter, router net sales were down about 13% sequentially as we work to address elevated channel inventories. Consistent with last quarter, lack of a U.S. federal budget freezes spending on all projects, federal and local, not deemed essential and mission-critical. As such, a typical uptick in fourth quarter agency spending was muted. In the fourth quarter, consumption was at the high point for the fiscal year. And at the end of the quarter, channel inventory at the low point of the fiscal year. That said, we believe our router business is still moving toward a recovery stays in the second half of fiscal '25 as we continue to monitor channel inventory health.
We are encouraged with the positive feedback on our recent launch of the XR 60, the world's smallest rugged 5G router, and builds on our core markets of industrial and public safety. Pipeline for the XR 60 is strong, and we expect this product to contribute to revenue growth in fiscal '25 and beyond. We are also encouraged from feedback at DistribuTECH in the utility space where our product solutions support private networking spectrum and have resulted in sales and pipeline development. IoT Connected Services reported fourth quarter net sales of $24.2 million, flat sequentially, and also within expectations for this relatively stable stream of recurring revenue. We continue to invest in our service platform, delivering reliable, high-quality connectivity and cloud-based services, including smart connectivity, device control, data insights and fully managed solutions.
Net sales of our RF industrial products, including LoRa-enabled solutions declined about 14% sequentially, but POS increased approximately 13%, consistent with our goal of healthier channel inventories. Bookings in the fourth quarter sequentially increased over 30%, and has increased for the last 6 sequential quarters. Lastly, hearing aid applications, which integrate LoRa into custom SOCs are expected to result in meaningful revenue in FY '25. ITA-TVS faced a headwind from elevated channel inventory, but we are pleased with the progress of search switch with customer count across a broad spectrum of industrial, medical and automotive companies more than doubling in the last year. Our strategy leverages customer engagement and adoption of our best-in-class consumer products to capture meaningful SAM, we are pleased with healthy fourth quarter sequential growth in POS for ITA-TVS. Similarly, we are engaged in the industrial and automotive space for our sensing products and are encouraged by design wins in the fourth quarter. Our consumer products are gradually providing incremental momentum to the ITA flywheel. For the first quarter, we expect industrial net sales to be down with continued inventory digestion in modules and routers, and the aforementioned public sector headwind, but stable net sales from our managed connectivity offerings and growing lower net sales. Now, I'll turn the call back over to Mark.