Key Fob RFID

Product introduction:

Part No.: KF-T5577
Chip: ATA5577 (T5577 compatible)
Frequency: 125KHz
Housing: ABS blue (red, yellow, green, black in stock at same price)
Size: 35×28×4mm (excluding ring)
Metal ring: 304 stainless steel φ30mm
Unit weight: 6.6g ±0.3g

Chip specifications
Memory: 330bit user area
Blocks: 11 (block 0 for configuration, remaining 10 can be locked individually)
Modulation: FSK/PSK/Manchester/Biphase
Data retention: 10 years
Write cycles: ≥100,000
Anti-collision: single tag only
Reference standard: ISO 11784/11785 + common access control formats

Read range
10mW reader: 3-5cm
50mW reader: 5-8cm
Operating temperature: -40°C to +75°C
Storage temperature: -50°C to +85°C
Protection: IP68 (fully sealed, long-term immersion proof)

Factory default setting
Block 0: standard configuration word written (Manchester, 125KHz)
Block 1-7: 00000000 (ready for direct ID copy)
All blocks unlocked – writable with any T5577 writer (RRG, Proxmark3, ACR122, etc.)

Packing

100 pcs per anti-static zip bag
2,500 pcs per carton (52×28×30cm, gross weight 16.8kg)

Delivery terms
Blue/red/yellow/green/black: over 50,000 pcs in stock, same-day dispatch for orders paid before 16:00
Other colours (grey, white, orange, purple, etc.): MOQ 5,000 pcs, lead time 7 days
Surface options: glossy (standard), matte, laser numbering (+0.25 RMB per digit), silk-screen logo (min 5,000 pcs, +0.6 RMB per colour)
Sample policy: 5 unmarked samples sent by SF Express collect before bulk order
Each carton includes 100% electrical test report

Related items in same series
T5577 ID thick card 85.6×54×1.8mm
T5577 epoxy card
125KHz glass tube tag 2×12mm & 3×15mm
T5577 livestock ear tag 30mm round

Company
Located in Changsha, Hunan Province. Registered in 2006. Current staff ≈160. Plant area 6,800 m². Main markets: Eastern Europe 35%, Domestic China 20%, Western Europe 15%, North America 10%, South America 10%, Oceania 10%.

For pricing, samples or annual contracts please contact us directly. Price quoted includes VAT and domestic shipping.

Hot Tags: Key Fob RFID, China, manufacturers, suppliers, factory, customized, cheap, low price, free sample