AN6520-245
rainsun
Needs validationmedium risk
AN6520-245 is a same-band SMD chip antenna candidate for AN2051-245 with layout review.
Best Alternatives to AN2051-245
AN2051-245 is a 2.45GHz SMD chip antenna. Alternatives should be treated as RF layout candidates, not drop-in replacements.
AI replacement insight
Electrical riskmedium
band matches on best candidate, but tuning may shift
Package riskhigh
target footprint and pinout are incomplete
Firmware risklow
passive RF antenna
Sourcing riskmedium
target lifecycle not stated
Can it be replaced directly?
No pin-compatible replacement is proven from the available data.
Best replacement path
Start with AN6520-245, then verify footprint, keepout, matching and RF performance.
Main risk
Antenna footprint and matching network are not verified.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | AN2051-245 | AN6520-245 | PRO-OB-440 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Application | 2.45GHz BT/WLAN | 2.4GHz wireless | Wi-Fi/BT/BLE/ZigBee | 2.4GHz wireless / Wi-Fi/BT/BLE/ZigBee — same RF band; PRO-OB-440: same use band | |
| Package | SMD, 5.1x2.0x1.2 | SMD, 6.5x2.2x1.0 | SMD, 13.75x5.23x3.53 | SMD, 6.5x2.2x1.0 / SMD, 13.75x5.23x3.53 — larger footprint likely; PRO-OB-440: much larger | |
| Pinout | missing | 3 pins | missing | 3 pins / missing — cannot verify pads; PRO-OB-440: no pin proof | |
| Temperature | missing | -40 to +85C | -40 to +125C | -40 to +85C / -40 to +125C — target not listed; PRO-OB-440: target not listed | |
| Lifecycle | - | - | Active | Active — not stated active; PRO-OB-440: active listing |
Application & sourcing insights
Questions & answers
AN6520-245 is the closest listed candidate, but it needs footprint, keepout and RF tuning review.