Linx Technologies
  • Home
  • AntennasToggle Dropdown
    • Cellular
    • NB-IoT and LTE-M
    • Sub 1 GHz ISM and LoRaWAN®
    • 2.4 GHz (Bluetooth, Zigbee, Thread)
    • WiFi/WLAN (2.4 GHz, 5 GHz, 6 GHz)
    • GPS/GNSS
    • Evaluation Kits
  • ConnectorsToggle Dropdown
    • RF Connectors
    • RF Adapters
    • Cable Assemblies
    • Battery Holders
    • Lightning Arresters
  • Modules & RemotesToggle Dropdown
    • Wireless Remotes
    • Wireless UART RF Modules
    • Remote Control RF Modules
    • Transparent RF Modules
    • GPS & GNSS Modules
    • Remote Control Integrated Circuits
    • Interface Modules
    • RF Module Evaluation & Development Kits
    • End of Life RF Modules & Development Kits
  • Contact UsToggle Dropdown
    • Ask a Question
    • Employment
    • Distributor Network
    • Manufacturer’s Rep Network
    • Press
  • AboutToggle Dropdown
    • About Linx
    • Management Team
    • Privacy Policy
    • Terms of Use
    • Terms and Conditions
HT Keyfob Transmitter

HT Keyfob Transmitter

Basic Remote Control with Cut-Trace Addressing

Get a Quote See Data Sheets Ask a Question

The keyfob is recommended for legacy products already based on Holtek® chips. It is not recommended for new designs

  • Description
  • Specifications
  • Application Examples
  • Downloads
  • Complementary Products
  • Similar Products

The HT Keyfob transmitter is ideal for general-purpose remote control and command applications requiring a small form factor transmitter. The small transmitter has a line of sight range of up to 750 feet (230m). It is available in 418 (standard) and 433.92MHz. It has been pre-certified for FCC Part 15, Industry Canada, and European CE (433MHz only) compliance, reducing costs and time to market.

Addressing is based on 10 address lines that are set with cut traces, which offers 1,022 unique addresses. The address lines should be set the same on the receiver to enable communication. If the addresses are not the same, then the decoder ignores the transmission.

The protocol is based on the Holtek® HT640 encoder and is completely backwards compatible with older generation transmitters and systems based on the HT658 decoder. The transmission can be decoded using a KH3 series receiver / decoder, or an LR Series receiver or LT Series transceiver paired with a DS Series decoder or custom microcontroller. The transmitter can be configured with 1 to 5 buttons and the keypad and labeling can be customized with an NRE and minimum order. It uses a single 3V CR2032 lithium button cell.

Ordering

PartDescriptionDocumentationStocking
OTX-418-HH-KF#-HT418MHz HT Keyfob Transmitter Datasheet
OTX-433-HH-KF#-HT433MHz HT Keyfob Transmitter Datasheet
EVAL-418-HH-KF-HT418MHz HT Keyfob Transmitter Basic Evaluation Kit Datasheet
EVAL-433-HH-KF-HT433MHz HT Keyfob Transmitter Basic Evaluation Kit Datasheet

Modal title

Text goes here

Stocking and pricing information based on available distributor data and is for reference only. Visit distributor website for purchasing information.

Get a Quote from Linx

To order, please call +1 (800) 736-6677 or +1 (541) 471-6256 for callers outside the United States.

OTX-418-HH-KF#-HTOTX-433-HH-KF#-HT
Frequency418MHz433MHz
Operating voltage2.3 – 3.6VDC 3.0VDC typical2.3 – 3.6VDC 3.0VDC typical
Supply current12.63mA typical12.63mA typical
Power down current1.5µA typical1.5µA typical
Operating temperature0 – 70°C0 – 70°C
Buttons1 – 51 – 5

Application Examples

  • General remote control
  • Remote keyless entry (RKE)
  • Lighting Control
  • Home / industrial automation
  • Call systems

Downloads

Manuals & Datasheets

  • OTX-fff-HH-KF#-HT Data Guide
  • EVAL-fff-HH-KF-HT User's Guide
  • EVAL-fff-HH-KF-HT Quick Start Reference
  • RXM-fff-LR Data Guide
  • LICAL-EDC-DS001 Data Guide

Application Notes

  • Guide to Wireless Regulations in the United States (FCC Resource Document)
  • Modulation Techniques for Low-Cost RF Data Links (AN-00130)
  • The FCC Road: Part 15: From Concept to Approval (AN-00140)
  • Considerations for Sending Data over a Wireless Link (AN-00160)
  • Addressing Linx OEM Products (AN-00300)
  • Encoder and Decoder Comparison (AN-00310)
  • The Basics of Remote Control and Remote Keyless Entry (AN-00320)

Complementary Products

HT Keyfob Transmitter Evaluation Kit
HT Keyfob Transmitter Evaluation Kit
CW Series Antennas
CW Series Antennas
RH Series Reduced-Height Antennas
RH Series Reduced-Height Antennas
uSP Series microSplatch® Antennas
uSP Series microSplatch® Antennas
SP Series Splatch® Antennas
SP Series Splatch® Antennas
RP-SMA Connectors
RP-SMA Connectors

Similar Products

Compact Handheld Transmitter
Compact Handheld Transmitter
Long-Range Handheld Transmitter
Long-Range Handheld Transmitter
MS Keyfob Transmitter
MS Keyfob Transmitter

Products

  • Antennas
  • Connectors
  • RF Modules
  • GPS & GNSS Modules
  • Wireless Remotes

Support

  • Get Support
  • Application Notes
  • FAQ
  • Software & Drivers
  • Blog
  • Notices
  • Quality & Environment

About Us

  • About Linx
  • Management Team
  • Press Releases
  • Brands & Trademarks
  • Privacy Policy
  • Terms of Use
  • Terms & Conditions

Contact Us

  • Contact Us
  • Get a Quote
  • Distributor Network
  • Manufacturer’s Rep Network
  • Employment

Linx Technologies

159 Ort Lane
Merlin, OR, US 97532
Toll Free: 1-800-736-6677
Intl: 1-541-471-6256
Fax: 1-541-471-6251
contact@linxtechnologies.com
  • LinkedIn

Copyright © 2022 Linx Technologies · Log in

Manage Cookie Consent

The Linx Technologies website uses cookies for essential services and an improved user experience. By using our website, you consent to our Privacy Policy and Terms of Use.

Functional cookies Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage vendors Read more about these purposes
View preferences
{title} {title} {title}