Import 24c16 Contact Card — Buy in wholesale FOB from Supplier in China

The 24C16 contact card from Omt Smart Card Technology (Hk) Co., Ltd. is an ISO/IEC 7816-compliant memory card built around the AT24C16 or equivalent I2C serial EEPROM, providing 16 kilobits (2,048 bytes) of non-volatile storage accessed through a physical contact interface. The card follows the ID-1 format, 85.60 mm by 53.98 mm by 0.76 mm, the standard credit-card dimension that ensures compatibility with standard readers and dispensers. Eight contact pads (C1-C8) on the module surface provide power, ground, clock, reset, and serial data connections under the ISO 7816-2 layout. The 24C16 designation refers specifically to the memory organisation: 2048 bits arranged in 256-byte pages with 8-bit addressing, typical for low-cost access control and identification applications.

The card body is manufactured from PVC, PET, or composite materials, with the source noting durable construction for extended operational life. The EEPROM typically operates at 5 V with clock frequencies up to 1 MHz in fast mode, though supply voltage range and write endurance cycles should be confirmed directly with the supplier. Memory access follows the I2C two-wire protocol with device select bits, allowing up to eight devices on the same bus. Data retention is typically ten years or more, with write endurance of 1,000,000 cycles per byte for standard CMOS EEPROM processes. Surface printing options include offset, screen, or digital processes for logos, photographs, and variable data encoding.

Primary applications include employee ID badges, membership cards, campus access systems, and event credentialing where simple, cost-effective secure storage suffices without the cryptographic capabilities of microcontroller-based smart cards. The supplier indicates customisable artwork and bulk order availability. Buyers should confirm whether the card is supplied with magnetic stripe, RFID hybrid, or pure contact-only configuration. Memory capacity of 2 KB suits applications storing identification numbers, access privileges, or small credential datasets. Payment terms, MOQ, and lead time are not specified in the source and require direct confirmation with Omt Smart Card Technology.

Omt Smart Card Technology (Hk) Co., Ltd. is located at Room D-1401, Cuihu Business Center, Dahe Road, Longhua New District, Shenzhen, 518109, China. The supplier operates from Shenzhen, a major electronics manufacturing hub, though the company name includes a Hong Kong designation suggesting a holding or trading structure common in the Pearl River Delta region. Trust tier is listed as harbour, with a response rate of 0.00% and zero average response hours in the source data. No factory size, year of establishment, employee count, or named certifications appear in the provided information, so buyers should conduct due diligence on manufacturing capability and quality system registration directly.

The source description emphasises customisable design, durable materials, and compatibility with various access control systems, positioning the 24C16 contact card for corporate, educational, and event applications. The supplier mentions flexible MOQ and efficient packaging, though no specific figures are provided. There is no mention of in-house chip encapsulation, card personalisation, or whether production is outsourced to a separate lamination and embedding facility. Buyers should clarify the supplier's role in the value chain, direct manufacturing versus trading, and request factory audit evidence or third-party quality accreditation before committing to volume orders.