Security camera and IoT electronics for United States makers hit two walls on the board: the radio and the power rail. We counted Walsin’s 38 antennas: only 9 cover 5 GHz and only 2 of 12 chip antennas do. On a 100 V PoE rail, the 0603 X7R range holds 8 parts at 100 nF or more, and none above 100 nF.
Venatech Limited, an authorised Walsin distributor in Hong Kong, holds the Walsin Technology (Walsin) export files for antennas and MLCC, and this post is for a design engineer or sourcing lead at a United States maker of network cameras, doorbells, sensors or gateways who is re-checking a bill of materials after a year of federal rule changes. It asks what a Hong Kong source can offer on the radio and the PoE input. It makes no statement about any maker’s status under any rule, and it says nothing about where any part is made. Every part number below is real and every count is ours. The rule statements come from named documents that we read on 23 October 2026.
What did the FCC do in June 2026, and what does it not say about components?
It barred the continued import and marketing of previously authorized equipment on the Covered List, and it speaks of equipment, not of capacitors or antennas. FCC Public Notice DA 26-635, released on 26 June 2026, prohibits continued importation and marketing of previously authorized covered equipment added to the Covered List in 2024 or earlier, with the prohibition taking effect ten days after Federal Register publication.
The notice leaves existing authorizations in place and does not affect the continued use of equipment already bought. It also makes some 2021 entries use-based: they are covered only when marketed for public safety, government facilities, surveillance of critical infrastructure or other national security purposes, and the critical-infrastructure purpose is suspended until the FCC defines the term. A camera vendor’s customer notice, last updated on 15 July 2026, dates the Federal Register publication to 6 July 2026 and the start of the bar to 16 July 2026, and says sales for ordinary home and business security continue. Akin Gump (7 August 2026) adds that on 22 December 2025 the FCC extended the Covered List to video surveillance equipment named in section 1709(a)(1) of the FY2025 National Defense Authorization Act, and proposed further limits on previously authorized items.
Our view, labelled as ours: a rule written about finished equipment still pushes a design team to re-read its bill of materials, and a second source on a passive is the cheapest line on it to prepare. The sources do not say that.
How many Walsin antennas cover 5 GHz for a dual-band camera?
Nine of 38, and only two of the 12 chip antennas. We parsed every real row of the Walsin antenna export, 44 rows less 6 cable assemblies and connectors: 27 antennas sit in the Wi-Fi and Bluetooth bands, 18 of them at 2.4 GHz only, 7 at both 2.4 and 5 GHz, and 2 at 5 GHz only.
The 12 chip antennas are the part a small camera or sensor wants. Ten of them list 2.4 to 2.5 GHz only, and two list 2.4 to 2.5 GHz plus 4.9 to 5.9 GHz: RFANT6050110L0T and RFANT6050110L1T, both 5.9 × 5.1 × 1.1 mm. We have not seen this counted anywhere: the smallest 5 GHz-capable chip antenna is 30.09 mm² against 5.12 mm² for the smallest 2.4 GHz chip, 5.9 times the board area. The export lists a peak gain of 4 dBi for the two dual-band chips and 2 dBi for the 2.4 GHz ones.
| Walsin part | Type | Bands (export) | Size (mm) | Peak gain (export) | Match / mismatch (dual-band 2.4 and 5 GHz camera) |
|---|---|---|---|---|---|
RFANT6050110L0T |
Chip | 2.4 to 2.5 and 4.9 to 5.9 GHz | 5.9 × 5.1 × 1.1 | 4 dBi | Match on both bands |
RFANT3216120A1T |
Chip | 2.4 to 2.5 GHz | 3.2 × 1.6 × 1.2 | 2 dBi | Mismatch: no 5 GHz |
RFPCA430805IMLB301 |
PCB, IPEX | 2.4 to 2.5 and 5.15 to 5.85 GHz | 43 × 8.3 × 2.1 | above 3 and above 6 dBi | Match on both bands; mismatch on size |
RFDPA191315IMLB301 |
Dipole, IPEX | 2.4 to 2.5 and 5.15 to 5.85 GHz | 191.92 × 9.35 × 12.95 | 5 dBi | Match on both bands; mismatch for a small housing |
RFPCA201018IM5B301 |
PCB, IPEX | 5.x GHz | 20.1 × 10 × 3 | above 5 dBi | Mismatch: no 2.4 GHz |
The export carries gain, size and band, and not a radiation pattern, an efficiency or a matching network. We hold no antenna datasheet, so confirm every figure against the Walsin datasheet when we obtain it, and tune on your own board. Our post on chip antenna selection shows the crowding at 2.4 GHz.
Which capacitor voltage does a PoE camera rail need?
The 100 V rung, because the 50 V rung is too close to the source. We parsed the Rated Voltage field of all 23,601 distinct MLCC part numbers: the rungs run 50 V then 100 V with 6,514 parts at 50 V and 3,089 at 100 V, and a 57 V PoE source at an 80% working limit needs 71.25 V, so the first rung that clears is 100 V.
The 57 V figure is our assumption for the upper end of a 48 V nominal PoE source, and the 80% limit is also ours. Your PHY vendor and your derating policy decide both. The counts in the next section use X7R only, in the four cases a camera board uses on the PoE input.
What happens to a 100 nF capacitor as the case shrinks?
It runs out of parts at 0603, and out of the range at 0402. We counted X7R parts rated 100 V: 32 at 0402, none of them at 100 nF or more, 180 at 0603, 8 of them at 100 nF or more and none above 100 nF, 212 at 0805, 23 at 100 nF or more up to 470 nF, and 200 at 1206, 67 at 100 nF or more up to 2.2 µF.
| Case | X7R parts at 100 V | At 100 nF or more | Largest | At 100 nF or more on the shelf | Match / mismatch (100 nF, 100 V, X7R) |
|---|---|---|---|---|---|
| 0402 | 32 | 0 | 4.7 nF | 0 | Mismatch: the range ends at 4.7 nF |
| 0603 | 180 | 8 | 100 nF | 1 | Match on the 8, stocked on one (0603B104K101) |
| 0805 | 212 | 23 | 470 nF | 3 | Match, with room above 100 nF |
| 1206 | 200 | 67 | 2.2 µF | 4 | Match, with room above 100 nF |
The eight at 0603 are 0603B104K101, 0603B104J101, 0603B104M101, SH18B104K101, MT18B104K101, ST18B104J101, ST18B104K101 and ST18B104M101. Only 0603B104K101 is in our snapshot of 23 September 2026. The four automotive-range parts are AEC-Q200 compliant and the SH part is a soft termination part, so they differ from the general purpose ones in grade and termination. Our post on the 48 V bus and the missing 63 V and 80 V rungs explains why there is nothing between 50 V and 100 V.
What do we hold on the shelf, and what do we not hold for cameras?
One stocked 0603 part at this rating and nothing in the antenna range. We counted our stock snapshot dated 23 September 2026, 1,125 part numbers: 0 of the 44 antenna rows are on it, 1 of the 8 parts at 0603 and 100 nF is, and none of the 28 Walsin datasheets we hold, 451 pages, contains the words camera, surveillance, Wi-Fi or Power over Ethernet.
Of the 28 datasheets, 26 are MLCC and 2 are chip resistor, so no antenna datasheet is in the documents we hold, and every antenna in this post is a factory order for which we state no lead time. Venatech holds neither ISO 9001 nor IATF 16949. We state no country of origin, because the documents we hold name none. The ready stock page shows what is held in Hong Kong now, and we quote part-number counts, never piece counts.
How can Venatech help a United States camera or IoT maker?
By crossing the part you already use, stating the differences, and telling you what is missing. Venatech Limited is an authorised Walsin distributor in Hong Kong. Walsin is our only authorised line, and the other lines we supply are Stackpole and Viking.
- Cross-reference. Paste your incumbent number into the free cross-reference tool, which decodes 18 manufacturers’ part numbers across 800,000+ crossable parts, and read each Walsin candidate with match and mismatch stated field by field.
- BOM check. Upload a camera or gateway bill of materials to /bom/ and have each line checked against the same engine.
- Ready stock. The ready stock list is a Hong Kong snapshot dated 23 September 2026, never live-synced.
- Service. Hong Kong-based, small lots, cross-referencing help, and a quote requested through the site. Our address is Unit 207, 2/F, Sun Ling Plaza, 30 On Kui Street, Fanling, N.T., Hong Kong, telephone (852) 2628 4777.
A worked example from our own export: a 100 nF, 100 V, X7R, 0603 capacitor on a PoE input maps to 0603B104K101, which is stocked, and a 5 GHz-capable chip antenna maps to RFANT6050110L0T, which is not. Our antenna range lists the families. Confirm against both datasheets and qualify in your own circuit.
The short version
The FCC’s notice DA 26-635 took effect in July 2026 and concerns equipment, not components. For a dual-band camera, 9 of 38 Walsin antennas cover 5 GHz and 2 of 12 chips do, and a 100 V PoE rail has 8 X7R parts at 0603, none above 100 nF, with one on our shelf.
Send us the antenna and the PoE capacitor from one camera board and we will return the Walsin candidates with the differences stated. If your next board adds 5 GHz, which part gives way first, the footprint or the rail?
Where did we read the news items?
Fetched 23 October 2026. The rule statements above are taken from these pages; the part data comes from our own Walsin export and stock list.
- Federal Communications Commission, Public Notice DA 26-635, released 26 June 2026: https://docs.fcc.gov/public/attachments/DA-26-635A1.txt
- A United States camera vendor’s customer notice on the FCC rule, last updated 15 July 2026: https://www.lorex.com/pages/fcc-notice-regarding-certain-legacy-surveillance-equipment
- Akin Gump, “FCC seeks comment on limiting continued importation and marketing of certain previously authorized equipment”, 7 August 2026: https://www.akingump.com/en/insights/alerts/fcc-seeks-comment-on-limiting-continued-importation-and-marketing-of-certain-previously-authorized-equipment-added-to-the-fccs-covered-list-on-december-22-2025
Frequently asked questions
<!– wp:rank-math/faq-block {"questions":[{"id":"faq-question-01","title":"What did the FCC decide in June 2026 about covered equipment?","content":"FCC Public Notice DA 26-635, released on 26 June 2026, prohibits continued importation and marketing of previously authorized covered equipment added to the Covered List in 2024 or earlier. It leaves existing authorizations and equipment already bought untouched. It concerns equipment, not components, and your compliance team should confirm scope.","visible":true},{"id":"faq-question-02","title":"How many Walsin antennas cover both 2.4 and 5 GHz?","content":"Seven of 38 cover both, two more cover 5 GHz only, and 18 cover 2.4 GHz only. Of the 12 chip antennas, onlyRFANT6050110L0T and RFANT6050110L1T list a 5 GHz band, at 5.9 × 5.1 × 1.1 mm. We hold no antenna datasheet, so confirm each figure against Walsin’s.”,”visible”:true},{“id”:”faq-question-03″,”title”:”Which MLCC voltage does a PoE camera input need?”,”content”:”At our assumed 57 V source and an 80% working limit, a PoE input needs 71.25 V, and the first Walsin rung above it is 100 V. There is no rung between 50 V and 100 V. Your PHY vendor and your derating policy decide the numbers.”,”visible”:true},{“id”:”faq-question-04″,”title”:”Can I get a 100 nF, 100 V X7R capacitor in 0603?”,”content”:”Yes, at 100 nF and no higher. We counted 8 such parts, and only 0603B104K101 is in our snapshot dated 23 September 2026. At 0805 the range reaches 470 nF and at 1206 it reaches 2.2 µF. The ready stock page shows what is held now.”,”visible”:true},{“id”:”faq-question-05″,”title”:”Do you hold antennas in Hong Kong stock?”,”content”:”No. As at 23 September 2026 none of the 44 antenna-range rows is in our stock list of 1,125 part numbers, so each antenna is a factory order and we state no lead time. We hold no antenna datasheet, and we say so before you design one in.”,”visible”:true},{“id”:”faq-question-06″,”title”:”Can you tell me where these parts are made?”,”content”:”No. None of the 28 Walsin datasheets we hold names a manufacturing site or country, so we state no origin. If your programme needs one, ask us and we will pass the request to Walsin. Customs and origin questions belong with your compliance team, because we give no legal or customs advice.”,”visible”:true}],”listStyle”:””,”titleWrapper”:”h3″,”titleCssClasses”:””,”contentCssClasses”:””,”sizeSlug”:””} –>
What did the FCC decide in June 2026 about covered equipment?
FCC Public Notice DA 26-635, released on 26 June 2026, prohibits continued importation and marketing of previously authorized covered equipment added to the Covered List in 2024 or earlier. It leaves existing authorizations and equipment already bought untouched. It concerns equipment, not components, and your compliance team should confirm scope.
How many Walsin antennas cover both 2.4 and 5 GHz?
Seven of 38 cover both, two more cover 5 GHz only, and 18 cover 2.4 GHz only. Of the 12 chip antennas, only RFANT6050110L0T and RFANT6050110L1T list a 5 GHz band, at 5.9 × 5.1 × 1.1 mm. We hold no antenna datasheet, so confirm each figure against Walsin’s.
Which MLCC voltage does a PoE camera input need?
At our assumed 57 V source and an 80% working limit, a PoE input needs 71.25 V, and the first Walsin rung above it is 100 V. There is no rung between 50 V and 100 V. Your PHY vendor and your derating policy decide the numbers.
Can I get a 100 nF, 100 V X7R capacitor in 0603?
Yes, at 100 nF and no higher. We counted 8 such parts, and only 0603B104K101 is in our snapshot dated 23 September 2026. At 0805 the range reaches 470 nF and at 1206 it reaches 2.2 µF. The ready stock page shows what is held now.
Do you hold antennas in Hong Kong stock?
No. As at 23 September 2026 none of the 44 antenna-range rows is in our stock list of 1,125 part numbers, so each antenna is a factory order and we state no lead time. We hold no antenna datasheet, and we say so before you design one in.
Can you tell me where these parts are made?
No. None of the 28 Walsin datasheets we hold names a manufacturing site or country, so we state no origin. If your programme needs one, ask us and we will pass the request to Walsin. Customs and origin questions belong with your compliance team, because we give no legal or customs advice.