TK4100 (EM4100 compatible) Card Supplier
RFIDAK can source TK4100 (EM4100 compatible) cards for a specified reader and application. MOQ guidance for this format: 500 pieces baseline; confirm the selected card. Confirm the exact chip, finished construction, applicable standards, sample terms and production schedule in a written quote.
Quick spec — TK4100 (EM4100 compatible) Card
- Chip
- TK4100 (EM4100 compatible)
- Frequency
- 125 kHz
- Standards
- EM4100-compatible LF format; verify the supplied chip and reader protocol
- Memory
- Read-only identifier; confirm transmitted data format
- Security
- None (read-only UID)
- Form Factor
- Card (ID-1 / CR-80 face size (85.6 × 54 mm); approve thickness)
- Materials
- PVC / PETG / ABS
- MOQ
- 500 pieces baseline; confirm the selected card
- Lead Time
- Confirm production and transit dates in the quote
Chip technical brief
TK4100 is a read-only LF chip commonly supplied for EM4100-style access credentials. A shared 125 kHz carrier does not make every LF reader compatible: the modulation, transmitted format, identifier mapping and access-controller settings must match. Do not specify a TK4100 access credential as an ISO/IEC 11784/11785 animal-identification implant without separate evidence for the finished transponder and required registration workflow. Confirm the actual supplied chip and test it on the installed reader before ordering.
Buyer one-liner
Read-only EM4100-style LF credential; verify reader format and identifier mapping.
Typical use cases
- ▸Existing EM4100-compatible access systems
- ▸Gym lockers with a verified LF reader
- ▸Parking with a verified LF reader
- ▸Time attendance with a verified LF reader
Reader requirements to validate
Confirm the exact reader model, firmware, antenna, supported protocol and application or credential data with the system owner. Test the finished sample on the installed setup; a chip datasheet or shared frequency does not establish compatibility.
Card construction and approval
A contactless card combines a selected chip and antenna with a card body. Start with the system-approved chip, data format and reader, then confirm face dimensions, finished thickness, material, print method and any magnetic-stripe or contact-chip option. Material names do not establish heat resistance, printer fit, recyclability or lock compatibility. For custom artwork and numbering, agree a proof and an encoded sample before production. The card MOQ in the company policy is a baseline; quantities, packing, chip availability and production timing belong in the configuration-specific quotation.
Typical sizes
- • ID-1 / CR-80 face size (85.6 × 54 mm); approve thickness
- • Other card sizes and shapes subject to drawing and tooling review
Materials
- • PVC
- • PETG
- • ABS
- • Wood or bamboo
- • Coated paper
Document scope to verify
Request current documents for the exact finished article, materials and destination. A form-factor name does not establish a certification or IP rating.
Why source TK4100 (EM4100 compatible) cards from RFIDAK
TK4100 cards can be evaluated for an installed LF reader system that accepts the exact identifier and data format supplied by the chosen chip variant. Matching 125 kHz frequency or a white card appearance does not establish compatibility with a reader, controller or credential program. TK4100 should not be described as an ISO 11784/11785 animal transponder or a universal replacement for another LF format. Ask the system owner to confirm authorized enrollment, sample acceptance and any security limitations before ordering.
Buyer snapshot
Operators and integrators replenishing an approved LF access or identification system. They should provide the exact reader, controller and identifier requirements rather than relying on a generic 125 kHz label.
Planning examples
Illustrative evaluation plans, not reported customer results.
Example 1
Illustrative property test (not a customer case): an authorized administrator compares a candidate TK4100 sample with the approved credential and checks the exact value received by the controller. It verifies enrollment, allowed and denied doors, and revocation before placing a repeat order.
Example 2
Illustrative gym reorder (not a customer case): the operator records the installed reader and software versions, tests new samples on the intended doors or lockers, and confirms how replacement identifiers are allocated before approving print and quantity.
Compare with other cards
Compare chip-level differences for the same form factor. Check the exact reader, credential format, finished construction and available samples before selecting a configuration.
| Chip | Memory | Security | Typical Use | Quote basis |
|---|---|---|---|---|
| TK4100 (EM4100 compatible) (this page) | Read-only identifier; confirm transmitted data format | None (read-only UID) | Existing EM4100-compatible access systems | Confirm chip availability, construction and quantity in the quote |
| EM4200 | 64-, 96- or 128-bit laser-programmed ROM option; identifier layout depends on format | None (read-only UID) | EM4100/4102-compatible access systems after sample testing | Confirm chip availability, construction and quantity in the quote |
| MIFARE Classic 1K | 1,024 bytes EEPROM | Crypto-1 (deprecated since 2008 | Hotel key cards (Saflok / VingCard / Onity legacy) | Confirm chip availability, construction and quantity in the quote |
| MIFARE Classic 4K | 4,096 bytes EEPROM | Crypto-1 (deprecated | Legacy multi-app cards | Confirm chip availability, construction and quantity in the quote |
| MIFARE Plus S 2K | 2,048 bytes EEPROM | AES-128 in Security Level 3 | Migration from MIFARE Classic 1K | Confirm chip availability, construction and quantity in the quote |
Recommended RFIDAK SKUs
These catalog formats are candidates for a TK4100 (EM4100 compatible) build. Confirm chip availability and the finished configuration in the quote.
RFID Cards
Custom PVC RFID Card
Custom PVC RFID cards combine a printable card body with a selected chip and antenna for access control, hotel credentials, membership or NF…
RFID Keyfob
RFID Keyfob
Custom RFID keyfobs for access control in ABS, silicone, epoxy and leather. Match LF, HF or NFC chips, logo printing, encoding, samples and …
RFID Tags
RFID Glass Tag
An RFID glass tag encloses a passive LF transponder in a compact glass capsule for selected embedded or identification projects. Frequency, …
Frequently asked — TK4100 (EM4100 compatible) cards
What is the minimum order quantity for TK4100 (EM4100 compatible) cards?▾
MOQ guidance for this format: 500 pieces baseline; confirm the selected card. Pilot size and unit price depend on chip availability, format, encoding, artwork and quantity; request a written quote for the exact specification.
How should I check reader compatibility with TK4100 (EM4100 compatible) cards?▾
Check the exact installed reader and controller model, firmware, credential profile and application data requirements. A frequency or protocol match alone does not prove compatibility. Have the system owner test a representative finished sample before authorizing production.
Can RFIDAK pre-encode TK4100 (EM4100 compatible) cards to our specification?▾
Writable EPC, NDEF or user-memory content may be encoded to an approved specification, depending on the chip and access rights. Factory-programmed UIDs normally cannot be changed. Secure credential provisioning needs an agreed key-custody process; never submit secret keys in a public inquiry form. Confirm feasibility and price for the exact data format.
What lead time should I plan for TK4100 (EM4100 compatible) cards to major export markets?▾
Confirm a production-ready date after the specification and sample are approved, then obtain a separate freight and import timeline for the destination. Ask for dated milestones in the project quote rather than relying on a form-factor average.
Which documents apply to TK4100 (EM4100 compatible) cards?▾
Document scope depends on the exact material, chip, reader and destination market. Ask RFIDAK to identify the applicable certificate or test report for the quoted SKU; a company certificate or another product's report does not automatically certify this configuration.
Ready to source TK4100 (EM4100 compatible) cards?
Send the chip preference, reader and application requirements, quantity, and destination. Confirm availability, sample terms, unit pricing and production schedule for the proposed configuration. Standard form-factor MOQ baseline: 500 pieces baseline; confirm the selected card.
Request a Configuration QuoteTest RFID Samples Before You Order
Free stock samples (up to 5 pieces) — buyer covers DHL/FedEx freight ($25–60), refunded 1:1 against the first production order over $500. Custom samples may cost extra. Confirm the sample configuration, availability and dispatch date before shipment.
Request the RFIDAK product catalog (PDF). Our team will reply by email.
We'll only use your email to send the catalog and reply to your inquiry.