EM4100 In Stock

EM4100 125kHz Read-Only RFID Tag IC

Name: EM4100 125kHz Read-Only RFID Tag IC
Brand: EM Microelectronics
SKU: EM4100

The EM4100 is EM Microelectronics' classic 125kHz read-only LF RFID tag IC with a 64-bit laser-programmed unique ID (not field-rewritable), supporting Manchester/Biphase/PSK coding and RF/64, RF/32, RF/16 data rates. Fully passive, with an on-chip 74pF resonance capacitor, rectifier, and voltage limiter — ubiquitous in access cards, key fobs, and asset ID.

Type

Read-only LF RFID tag

Frequency

100~150 kHz (125 kHz)

Memory

64-bit, read-only

Coding

Manchester / Biphase / PSK

Features

Read-only 125kHz LF RFID transponder
64-bit laser-programmed unique ID
Manchester / Biphase / PSK coding
RF/64, RF/32, RF/16 data rates
Fully passive; on-chip 74pF resonance cap
100~150kHz; ubiquitous access-control tag

Specifications

Type	Read-only LF RFID tag
Frequency	100~150 kHz (125 kHz)
Memory	64-bit, read-only
Coding	Manchester / Biphase / PSK
Data Rate	RF/64, RF/32, RF/16
On-chip Cap	74 pF

Applications

RFID125kHzLF RFIDRead-OnlyAccess ControlEM4100

Order Info

Stock, pricing, lead time, and samples for EM4100 — we reply within one business day.

Request Quote Request datasheet / sample

EM Microelectronics

Switzerland

Ultra-Low Power ICs — Semiconductor brand of the Swatch Group

View all EM Microelectronics products → Official EM Microelectronics site

EM4100 — Frequently Asked Questions

Where can I buy EM4100?

JLink Technology is an authorized EM Microelectronics distributor serving Taiwan, Mainland China, and Hong Kong. Submit an RFQ for EM4100 and we will respond with pricing and lead time within one business day.

Is EM4100 in stock?

Stock and lead time for EM4100 vary by quantity. Send us your required quantity via the RFQ form and we will confirm current availability and delivery schedule.

Can I get the EM4100 datasheet and samples?

Yes. As an authorized EM Microelectronics distributor, JLink Technology can provide the official EM4100 datasheet, samples, and engineering support. Contact us to request them.

What is the minimum order quantity for EM4100?

We support orders from prototype samples to mass production. Tell us your target volume in the RFQ and we will quote accordingly.

Is there a pin-compatible alternative or second source for EM4100?

Tell us the part you need to replace and your application. As a multi-line authorized distributor, JLink Technology can suggest a verified cross-reference or second source related to EM4100 where one exists, and quote pricing, stock, and lead time.

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