AS3955-ASWF-I4

AS3955-ASWF-I4

  • Description:IC RFID TRANSP 13.58MHZ 12WLCSP
  • Series:-
  • Mfr:ams-OSRAM USA INC.
  • Package:Tape & Reel (TR)

SKU:549eafd28366 Category: Brand:

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Product Detailed Parameters

  • Description:IC RFID TRANSP 13.58MHZ 12WLCSP
  • Series:-
  • Mfr:ams-OSRAM USA INC.
  • Package:Tape & Reel (TR)
  • Type:RFID Transponder
  • Frequency:13.58MHz
  • Standards:ISO 14443, NFC
  • Interface:I2C
  • Voltage - Supply:1.65V ~ 5.5V
  • Operating Temperature:-40°C ~ 125°C
  • Mounting Type:Surface Mount
  • Package / Case:12-UFBGA, WLCSP
  • Supplier Device Package:12-WLCSP (2.13x1.42)
  • Grade:-
  • Qualification:-

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AS3955-ASWF-I4

Buying Guide
Summary

ams-OSRAM USA INC. AS3955-ASWF-I4 is evaluated in RFID, RF Access, Monitoring ICs category when frequency coverage and integration details must hold up in the real enclosure. Key specs include Description (IC RFID TRANSP 13.58MHZ 12WLCSP), Temperature (-40°C ~ 125°C), Package/case (12-UFBGA, WLCSP), Mounting (Surface Mount), and Packaging (Tape & Reel (TR)).

Selection Notes
  • For AS3955-ASWF-I4, double-check the data interface (I2C) for integration and verification planning.
  • Verify the operating temperature range (-40°C ~ 125°C) and derate as needed in your application.
  • Verify Standards (ISO 14443, NFC) and compare it against your reference design limits.
Alternates & Substitutions
  • In RFID, RF Access, Monitoring ICs designs, define acceptance criteria up front so alternates can be qualified and repeated in production.
  • For substitutions, match the footprint-related items first: package/case 12-UFBGA, WLCSP, supplier package 12-WLCSP (2.13x1.42), mounting Surface Mount.
  • For RF substitutions, match the operating band and interface, then validate insertion loss and return loss in your real signal path.
  • Always compare the datasheet test conditions behind key specs (load, frequency, temperature) to avoid swapping in a part that was characterized differently.
FAQ

What is the package/case of AS3955-ASWF-I4?
12-UFBGA, WLCSP

Which supply voltage range is specified for AS3955-ASWF-I4?
1.65V ~ 5.5V

What is the packaging of AS3955-ASWF-I4?
Tape & Reel (TR)

Can you confirm the Interface for AS3955-ASWF-I4?
I2C

Application Scenarios

For many RFID, RF Access, Monitoring ICs designs, ams-OSRAM USA INC. AS3955-ASWF-I4 is vetted against electrical margins, thermal headroom, and mechanical integration before the BOM is frozen. They shape RF performance by controlling gain, matching, filtering, routing, and isolation in high-frequency signal paths. Teams generally focus on layout discipline, controlled impedance, grounding, and shielding to prevent spurs, desense, and compliance failures. In practice, removing integration uncertainty is what keeps schedules predictable and field reliability high. In consumer wireless products, compact RF integration must still meet coexistence and compliance targets. Across outdoor sensors, moisture and condensation change RF conditions, so robustness is validated under real weather exposure. In real deployments, across consumer routers, stable RF performance reduces returns caused by marginal range and intermittent throughput under heavy load. That discipline usually improves system uptime by reducing intermittent faults and hard-to-reproduce issues.

Compatibility Advice
  • Verify supply cleanliness and grounding near the RF block, because conducted noise often shows up as desense or emissions before committing to volume builds.
  • In qualification work, confirm power supply isolation so conducted noise does not translate into emissions or desense in real deployments before release to production.
Project Fit
  • Most suitable when you can bench-verify ams-OSRAM USA INC. AS3955-ASWF-I4 for RFID, RF Access, Monitoring ICs integration under realistic load and noise, and you can control layout, shielding, and the antenna environment.
AS3955-ASWF-I4AS3955-ASWF-I4

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