Ø1.25 × 7 mm
Ø1.25 × 7 mm
Glass body dimensions; define chip and use case separately. [1]
RFID Tags · RFIDAK
Sealed glass transponder capsules are available in eight published body sizes from Ø1.25 × 7 mm to Ø4 × 20 mm. These are LF components: chip protocol and encapsulation requirements must be selected independently of capsule size.

Technical reference
Model-specific data and source scope are shown together.
Choose a reference
Choose a model or format to include it in your quote or sample request.
Ø1.25 × 7 mm
Glass body dimensions; define chip and use case separately. [1]
Ø1.4 × 8.5 mm
Glass body dimensions; define chip and use case separately. [1]
Ø1.5 × 8 mm
Glass body dimensions; define chip and use case separately. [1]
Ø2.12 × 8 mm
Glass body dimensions; define chip and use case separately. [1]
Ø2.12 × 12 mm
Glass body dimensions; define chip and use case separately. [1]
Ø3 × 15 mm
Glass body dimensions; define chip and use case separately. [1]
Ø3 × 18 mm
Glass body dimensions; define chip and use case separately. [1]
Ø4 × 20 mm
Glass body dimensions; define chip and use case separately. [1]
Appearance & construction
Open a picture to inspect the original file. Dimensions are taken from the cited references.
Application & selection
No. FDX-B animal identification needs the appropriate 134.2 kHz chip configuration and coding. A 125 kHz EM4200 capsule is not made FDX-B by using the same glass housing.
Glass components need support inside the final assembly and protection from impact. A finished product should be evaluated after potting, molding or insertion because installation can stress the capsule.
Sources & documents
Published specifications identify the reference model. They do not replace the final order drawing or a model-specific test report.
Manufacturer reference · reviewed 2026-09-20
Custom orders & samples
Choose the reference, then add quantity, destination, chip or reader details and any artwork on the enquiry page.
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