T5577 Card Supplier
RFIDAK supplies T5577 cards from our Shenzhen factory with 500 cards minimum order, 12-15 working days lead time, and full ISO/IEC 11784/11785 compliance — used for lf format migration and hid prox clone cards.
Quick spec — T5577 Card
Chip technical brief
T5577 (Atmel/Microchip) is a programmable 125 kHz LF chip with 7 blocks × 32 bits = 224 bits user memory plus configuration. It can emulate EM4100, EM4200, HID 26-bit Prox, AWID, Indala and other proprietary LF formats — making it the standard choice for "all-in-one universal LF clone card" applications. RFIDAK ships T5577 cards / keyfobs / wristbands as blank-encodable, with optional pre-configuration to specific format on request.
Buyer one-liner
Writable 125 kHz chip; emulates HID Prox, EM4100, AWID — universal LF clone format.
Typical use cases
- ▸ LF format migration
- ▸ HID Prox clone cards
- ▸ Universal building access cards
- ▸ Test / development credentials
Compatible readers
- ▸ Most 125 kHz programmers (Proxmark3, RFID Tools)
- ▸ All LF readers (after encoding)
Card manufacturing
The CR-80 card body is the ISO 7810 ID-1 standard at 85.6 × 54 × 0.84 mm and is the dominant form factor for contactless smart credentials. RFIDAK produces cards in PVC (default), PETG (recyclable), ABS (high-temperature for hotel locks that overheat), wood/bamboo (premium hospitality finish), and coated paper (single-use ticketing). The chip + antenna inlay is sandwiched between two laminated layers; full-color CMYK or 4-color silkscreen printing is applied before lamination. Common finishes include matte, gloss, magnetic stripe (HiCo or LoCo), signature panel, embossed numbering, and laser-engraved UID for tamper-evident applications. Cards ship in 200-piece cartons; standard MOQ is 1,000 cards.
Typical sizes
- • CR-80 (85.6 × 54 × 0.84 mm)
- • CR-79 (84 × 53 mm)
- • Custom shape
Materials
- • PVC (default)
- • PETG (recyclable)
- • ABS (high-temp)
- • Wood / bamboo (premium)
- • Coated paper (single-use)
Compliance
- • ISO 7810 ID-1
- • CE (cards used in EU markets)
- • FCC Part 15 (chip-level)
Why source T5577 cards from RFIDAK
T5577 is a multi-format programmable 125 kHz LF chip: modulation, bit rate, and block structure are field-configurable, so one card SKU can present EM4100 / EM4200-style output or other LF data formats expected by an installed legacy reader fleet. RFIDAK ships T5577 cards blank-encodable for customers who run their own programming workflow, and supports format configuration for credentials the buyer is authorized to issue on their own systems. The standard customer is a security integrator migrating between legacy LF reader fleets, a building manager standardizing credentials across mixed installations, or a development team needing flexible test / prototype credentials.
Buyer snapshot
Security integrators handling mixed reader fleets, building managers serving multi-vendor lock installations, and development teams needing flexible LF prototyping credentials.
Anonymized project examples
Example 1
A US security integrator standardized its replacement card stock on T5577 during a phased legacy LF reader migration, programming cards in-house to the formats its own installed readers expect instead of holding separate card inventory per reader brand.
Example 2
A multi-tenant office park in Germany standardized on T5577 cards for tenant access, supporting 4 different LF reader brands across 6 buildings with formats programmed by the integrator at issuance.
Compare with other cards
Other chips that work in card format. Use this as a quick selector before requesting samples — RFIDAK ships free 3-5 unit test packs across multiple chip options.
| Chip | Memory | Security | Typical Use | Cost Tier |
|---|---|---|---|---|
| T5577 (this page) | 330 bits user memory | 32-bit password protection | LF format migration | $$ |
| MIFARE Classic 1K | 1,024 bytes EEPROM | Crypto-1 (deprecated since 2008 | Hotel key cards (Saflok / VingCard / Onity legacy) | $ |
| MIFARE Classic 4K | 4,096 bytes EEPROM | Crypto-1 (deprecated | Legacy multi-app cards | $$ |
| MIFARE Plus S 2K | 2,048 bytes EEPROM | AES-128 in Security Level 3 | Migration from MIFARE Classic 1K | $$$ |
| MIFARE Plus X 4K | 4,096 bytes EEPROM | AES-128 with proximity-check, virtual-card support | Transit ticketing | $$$$ |
Recommended RFIDAK SKUs
These products in our catalog ship with T5577 as a chip option.
RFID Cards
RFID Card
An RFID smart card is a standard ISO 7810 CR-80 contactless credential (85.6 x 54 x 0.8-0.9 mm) used for access control, cashless payment, t…
RFID Keyfob
RFID Keyfob
An RFID keyfob is a compact keychain-mounted access credential housed in ABS, PPS, fiberglass, wood, or coconut shell, providing more durabl…
Frequently asked — T5577 cards
What is the minimum order quantity for T5577 cards? ▾
500 cards is the standard MOQ. Smaller pilot batches may be possible at +15-30% per unit. For 5,000+ orders, volume discounts of 5-10% typically apply; 50,000+ orders move to direct-import pricing tiers.
Which readers are tested compatible with RFIDAK T5577 cards? ▾
Most 125 kHz programmers (Proxmark3, RFID Tools), All LF readers (after encoding). RFIDAK ships free 3-5 unit test packs to integrators evaluating reader compatibility before bulk commitment.
Can RFIDAK pre-encode T5577 cards to our specification? ▾
Yes. For UID-only chips, customer-supplied EPC / NDEF / data-block content is written before shipment. Per-unit pre-encoding pricing is typically +$0.05-0.20 depending on complexity.
What lead time should I plan for T5577 cards to major export markets? ▾
12-15 working days production from artwork approval, then 4-6 days DHL air or 18-30 days sea freight. Total door-to-door is typically 18-22 days air or 30-45 days sea.
Are RFIDAK T5577 cards compliant with ISO 7810 ID-1? ▾
Yes. RFIDAK T5577 cards carry ISO 7810 ID-1, CE (cards used in EU markets), FCC Part 15 (chip-level) compliance. Test reports are available on request under NDA.
Ready to source T5577 cards?
Get pricing in 24 hours and free 3-5 unit samples to validate before bulk commitment. MOQ: 500 cards · Lead time: 12-15 working days.
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