CMD-KEY4-433 Equivalent & Substitute Parts

Part Overview

The CMD-KEY4-433 is a 433MHz RF transmitter keyfob manufactured by TE Connectivity Linx, designed for remote control applications including garage openers and remote keyless entry (RKE) systems. This component operates using ASK/OOK modulation with a 4-button handheld interface and 750 ft. operating distance. The CMD-KEY4-433 is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production requirements.

Substiute Parts

CMD-KEY4-433

TE Connectivity LinxIn Stock: 895CMD-KEY4-433 Datasheet

Current PartRFQ

OTX-433-HH-KF4-HT

TE Connectivity LinxIn Stock: 1019OTX-433-HH-KF4-HT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMD-KEY4-433 is determined by the following critical parameters:

• Frequency: 433MHz (exact match required)
• Modulation/Protocol: ASK, OOK (exact match required)
• Function: Transmitter (exact match required)
• Interface: Handheld, 4 Button (exact match required)
• Voltage Supply Range: 2.1V ~ 3.6V (exact match required)
• Operating Distance: 750 ft. (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The OTX-433-HH-KF4-HT meets all substitution criteria and is classified as an active product, making it a direct equivalent for the obsolete CMD-KEY4-433.

Parameter Comparison

Engineering Selection Recommendations

The OTX-433-HH-KF4-HT is the direct substitute for the obsolete CMD-KEY4-433. Both components share identical electrical and mechanical specifications across all critical parameters. The OTX-433-HH-KF4-HT holds active product status with RoHS compliance certification, making it suitable for new designs and production continuity. Both parts maintain REACH Unaffected status and identical ECCN classification (5A991G), confirming regulatory equivalence for export and compliance purposes.

Frequently Asked Questions (FAQ)

Q: Can the OTX-433-HH-KF4-HT replace the CMD-KEY4-433 in existing designs?

A: Yes. Both components operate at 433MHz with ASK/OOK modulation, identical 4-button handheld interface, 750 ft. operating distance, and 2.1V ~ 3.6V supply voltage. Electrical and mechanical compatibility is complete.

Q: What is the difference in packaging between these parts?

A: The CMD-KEY4-433 is packaged in standard format, while the OTX-433-HH-KF4-HT is supplied in bulk packaging. Both maintain identical MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Why is the CMD-KEY4-433 obsolete?

A: The CMD-KEY4-433 has been discontinued by the manufacturer. The OTX-433-HH-KF4-HT is the active equivalent and should be used for all new procurement and design implementations.

Q: Are there compliance differences between these parts?

A: Both parts are REACH Unaffected and share identical ECCN classification. The OTX-433-HH-KF4-HT includes RoHS compliance certification, which is an additional compliance advantage for new designs.

Q: What inventory status should I expect?

A: The OTX-433-HH-KF4-HT is actively manufactured with current stock availability (913 Pcs reported). The CMD-KEY4-433 remains available from legacy inventory (824 Pcs) but should not be specified for new projects.