LF Card Inlay (125 kHz)
Are you laminating, converting, or embedding RFID into your own final product?
- MOQ
- 1,000 sheets
- Lead time
- 12–20 days
- Samples
- Stock or custom
Entry tier. Then: samples available.
Standard; rush possible on request.
Fees, freight and credits follow the sample policy.
Use this inlay or prelam when your team handles the lamination, die-cutting, or embedding step in-house. Confirm antenna geometry, chip family, pitch / roll format, and release-liner compatibility with your laminator before ordering sample rolls.
- Exact quote within 24 hours (Mon–Fri, GMT+8)
- Artwork PDF proof — bulk production starts only after your sign-off
- Stock and custom sample terms are confirmed before shipment
What buyers usually confirm first
swipe →Spec Check
What to confirm in the spec sheet
These specifications help buyers decide whether the product belongs on the sample shortlist before they move into deeper review.
| Product Name | LF Card Inlay (125KHz Prelam) |
| Operating Frequency | 125KHz (LF) |
| Standards | ISO 11784/11785 |
| Chip Options | TK4100, EM4200, EM4305, T5577, Hitag 1/2/S |
| Substrate | Brand-new PVC or PET |
| Thickness | 0.50-0.55 mm |
| Antenna | Multi-turn wound copper coil |
| Layouts | 2-5, 5-5 (standard or completely flat) |
| Quality Control | 100% electrical performance test per inlay; ISO 9001: 2015 |
| Print Markings | Trimmed reference edges, optional printed cross marks |
| MOQ | 1,000 sheets (production); samples available |
| Lead Time | 12-20 business days |
Shortlist Logic
Why buyers keep this option in play
These product traits often decide whether the format should move from browsing into a real sample plan.
Use Cases
Where this product format usually fits
These common deployments help buyers judge whether the product belongs in the right sample batch.
Building access control and door-entry cards (EM4200 / TK4100)
Time-and-attendance and staff ID cards
T5577 rewritable and multi-protocol emulation cards
Animal identification and livestock cards (ISO 11784/11785)
Hotel and residential-compound legacy access
Loyalty and membership cards on 125KHz systems
LF Card Inlay (125 kHz) Types
1LF inlay specifications
Operating frequency 125KHz (ISO 11784/11785). Chips TK4100, EM4200, EM4305, T5577, Hitag. Substrate brand-new PVC or PET. Thickness 0.50-0.55 mm (the thicker LF antenna needs more depth than a 13.56MHz inlay). Layouts 2-5 and 5-5, standard or completely flat. Trimmed reference edges with optional cross marks.
2Why LF inlay supply is scarce
Low-frequency antennas need many turns of copper wire to reach 125KHz, and most wire-planting machines cannot lay them cleanly, so many factories stopped making LF prelam. RFIDAK kept the capability and supplies consistent LF inlay worldwide, which is why buyers with legacy EM/TK4100 programs often source LF inlay here when other suppliers only offer HF.
3Why the 125KHz coil is the hard part
To resonate at 125KHz an antenna needs many turns of fine copper wire — far more than a 13.56MHz loop. Most automatic wire-planting machines cannot lay that many turns cleanly, which is why a lot of factories quietly dropped LF prelam and now only quote HF.
The wire itself is the constraint: stable impedance, uniform diameter, quick to soften and harden so it demoulds cleanly. Uneven wire gives you coils that sit proud, cards that show a coil print, and read range that varies across the sheet.
4Wound automatically, not by hand
Hand-laid coils deform, sit unevenly and leave a visible print on the finished card. Automatic implanting places every turn with the same gap, which is what makes 125KHz read performance repeatable from the first sheet of a run to the last.
LF inlays are also thicker than HF for this reason — 0.50–0.55 mm against 0.40–0.50 mm — because the coil simply needs the depth. Layouts are 2×5 and 5×5, in normal-standard or completely flat form.
5From PVC sheet to tested prelam — six stages
Same line, same gates, same 100% electrical test as our HF and UHF prelam.
6What we check on an LF inlay
TK4100, EM4200, EM4305, T5577 and Hitag chips are each read back on the test platform before the sheet is released. Thickness matters more on LF than on any other format, because the extra coil depth is exactly what jams a press if it drifts.
| What is checked | Instrument | Coverage |
|---|---|---|
| Chip response and read/write | Multi-chip test platform with reader and terminal | 100% of units |
| Antenna resonance frequency | Bode 100 vector network analyser | Setup + in-process |
| Inlay thickness | Digital height gauge | Per sheet lot |
| Chip-to-antenna bond strength | Push-force instrument | Per shift |
| Bond joint condition | Stereo microscope | Per shift |
| Substrate identity and density | Precision density balance | Incoming material (IQC) |
| Ageing and lamination survival | Constant temperature and humidity chamber | Qualification + periodic |
How Ordering Works
From inquiry to delivered lf card inlay (125 khz) in four steps
The same process every order follows — you always see a proof and approve it before anything goes to production.
- 1Within 24 hours
Send your inquiry
Share quantity, chip and application — or send the configuration straight from the estimate above. We reply with an exact quote and a chip / format recommendation.
- 21–3 days
Samples & artwork proof
Stock samples may be free under the sample policy; freight, custom-sample fees and any credits are confirmed before shipment. Test compatibility and finish before bulk approval.
- 3You control the clock
Approve the proof
Bulk production starts only after your written sign-off on the proof, chip encoding plan and numbering / UID list. Revisions before approval are free.
- 47–15 business days
Production & delivery
Standard lead time for stock tooling (custom molds add time — confirmed on your quote), then door-to-door express with tracking to your office or warehouse.
Details in writing:sample policy ·shipping & Incoterms ·quality control process
Supplier Fit
Why buyers source LF Card Inlay (125 kHz) from RFIDAK
Once the format is right, most teams still need confidence in manufacturing control, sample support, and repeat-order reliability.
Quality-focused manufacturing and sample support for custom RFID projects.
RFID manufacturing experience across cards, tags, labels, wristbands and readers.
Test compatibility before bulk approval; stock and custom sample terms follow the published sample policy.
Next Reading
What to read before you lock the sample path
These references help buyers move from broad browsing into a tighter shortlist before they send project details.
Nearby Options
Compare nearby options before you narrow the shortlist
These related products help buyers keep close alternatives in view before they commit to a sample direction.
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Compare this optionBefore You Order
Procurement guides every Card Inlay buyer reads first
Five short reads on the procurement-side topics every B2B RFID buyer wants answered before signing a quote — MOQ thresholds, lead time reality, pricing transparency, sample policy, and how to audit a Chinese factory before your first order.
Buyer Questions
Questions buyers usually ask before sample approval
These FAQs cover the points that usually come up between a first shortlist and a real sample or quote request.
What is the minimum order quantity (MOQ) for LF Card Inlay (125 kHz)?+
For LF Card Inlay (125 kHz), the published MOQ is 1,000 sheets (production); samples available. Exact MOQ and unit pricing are quoted per project once chip, customization and packaging are confirmed.
Does RFIDAK provide free samples of LF Card Inlay (125 kHz)?+
Yes. Stock card inlay samples of LF Card Inlay (125 kHz) are typically free; we only ask buyers to cover DHL/FedEx express shipping. Samples ship in 1–3 business days after your order is confirmed and arrive in 2–5 days to most countries. Custom samples (new chip, new size, printed artwork) usually take 3–7 additional days.
What is the production lead time for LF Card Inlay (125 kHz)?+
Published lead time for LF Card Inlay (125 kHz) is 12–20 business days. The clock starts at PO confirmation and artwork approval, not at your first inquiry. Rush production is available on request for time-sensitive launches; confirm MOQ and artwork early to protect the timeline.
Can LF Card Inlay (125 kHz) be customized for my brand or project?+
Yes. LF Card Inlay (125 kHz) supports end-to-end customization: full-color CMYK / silk-screen / UV printing, laser engraving, serial numbering, custom chip encoding (UID write, NDEF, sector locking), custom shape / size (subject to tooling MOQ), and packaging. Share your artwork, chip requirement and quantity and we will return a spec sheet + price within 24 hours.
Which RFID chips are supported for LF Card Inlay (125 kHz)?+
LF Card Inlay (125 kHz) supports TK4100, EM4200, EM4305, T5577, Hitag 1/2/S. Before ordering, share your reader model or current credential so we can confirm the exact chip variant (e.g., MIFARE Classic 1K vs DESFire EV3, NTAG213 vs 215) and avoid compatibility issues after lamination.
What certifications and quality control does RFIDAK apply to LF Card Inlay (125 kHz)?+
RFIDAK operates under ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 management systems, certified by Anhui Certification and Inspection Co., Ltd. LF Card Inlay (125 kHz) is subject to incoming material inspection, in-process QC at every lamination / bonding / encoding step, and 100% electrical performance testing before shipment. Products meet CE, FCC, RoHS and REACH as applicable by market. Full test reports are available on request for buyer audits.
Can LF Card Inlay (125 kHz) be pre-encoded or printed with my artwork before shipment?+
Yes. LF Card Inlay (125 kHz) can ship with UID range assignment, NDEF URL encoding (for NFC), sector-locked user data, serial numbering, and CMYK / silk-screen / UV printing of your artwork. Provide an AI/PDF artwork file at 300 dpi with 3 mm bleed and a chip-encoding spec; we return a digital proof for approval before production.
How does RFIDAK ship LF Card Inlay (125 kHz) internationally?+
RFIDAK ships LF Card Inlay (125 kHz) via DHL / FedEx / UPS (door-to-door, 3–5 days to most countries), air cargo (5–7 days for heavier orders), or sea freight (20–35 days for bulk over 500 kg). Standard Incoterms are EXW, FOB Shenzhen and DDP; choose based on customs clearance preferences. Commercial invoice, packing list and CoC / MSDS are included automatically.
How does RFIDAK handle repeat orders of LF Card Inlay (125 kHz)?+
For repeat buyers, RFIDAK locks tooling, artwork and chip encoding on file so subsequent POs ship faster — typically 5–10 business days for stock chip types at previously-run quantities. Price is adjusted transparently per chip market rate and FX movement; we flag any chip shortage (e.g., DESFire EV3) before quotation so the project plan stays realistic.
What are the technical specifications of LF Card Inlay (125 kHz)?+
Key LF Card Inlay (125 kHz) specs: frequency 125 kHz (LF). A full technical datasheet including read range, chip memory map, IP / temperature rating and compliance certificates is available on request; attach your reader model and target environment so we can confirm suitability before quoting.
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