PLC1666N Equivalent & Substitute Parts

Part Overview

The PLC1666N is a 170MHz Yagi, 6-Element RF antenna manufactured by TE Connectivity Laird with N Type Female termination and bracket mount configuration. This VHF antenna operates across the 166MHz to 174MHz frequency range with 7.1dBi gain and 400W maximum power handling. The PLC1666N is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing system support and component procurement.

Substiute Parts

PLC1666N

TE Connectivity LairdIn Stock: 1062PLC1666N Datasheet

Current PartRFQ

Y1503

TE Connectivity LairdIn Stock: 928Y1503 Datasheet

MFR RecommendedRFQ

Y1505

TE Connectivity LairdIn Stock: 1001Y1505 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PLC1666N is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Frequency Range Overlap: Substitute must operate within or encompass the 166MHz – 174MHz band
• Termination Type: N Type Female required for direct connector compatibility
• Mounting Configuration: Bracket mount required for mechanical compatibility
• Frequency Group: VHF classification (f < 300MHz)

Performance Parameters:

• Gain: Substitute gain values must be evaluated against application requirements
• Power Handling: Substitute maximum power rating must meet or exceed system requirements
• Antenna Element Configuration: Yagi antenna type with element count affecting directional characteristics

The substitute parts Y1503 and Y1505 both satisfy the mandatory compatibility parameters. Both operate within the 150MHz – 174MHz frequency range, which encompasses the PLC1666N operating band. Both feature N Type Female termination, bracket mount configuration, and VHF classification. The primary differences lie in element count, gain characteristics, and power handling capacity.

Parameter Comparison

Engineering Selection Recommendations

Y1503 Selection Criteria: The Y1503 is an active product with ROHS3 compliance, providing continuity of supply compared to the obsolete PLC1666N. The Y1503 operates within the required 150MHz – 174MHz frequency range and maintains N Type Female termination and bracket mount configuration. The 3-Element Yagi configuration produces 7.1dBd gain, comparable to the PLC1666N gain specification. The Y1503 maximum power rating of 300W is lower than the PLC1666N 400W specification. The Y1503 physical height of 39.250" is significantly reduced compared to the PLC1666N 64.016" height, which may affect installation space requirements.

Y1505 Selection Criteria: The Y1505 is an active product with RoHS compliance, providing continuity of supply compared to the obsolete PLC1666N. The Y1505 operates within the required 150MHz – 174MHz frequency range and maintains N Type Female termination and bracket mount configuration. The 5-Element Yagi configuration produces 9.2dBd gain, which exceeds the PLC1666N gain specification. The Y1505 maximum power rating of 300W is lower than the PLC1666N 400W specification. The Y1505 physical height of 39.500" is significantly reduced compared to the PLC1666N 64.016" height, which may affect installation space requirements.

Both substitute parts provide active product status and regulatory compliance advantages over the obsolete PLC1666N. Selection between Y1503 and Y1505 depends on gain requirements and directional characteristics needed for the specific application.

Frequently Asked Questions (FAQ)

Q: Can Y1503 or Y1505 directly replace PLC1666N in existing installations?

A: Both Y1503 and Y1505 share identical termination (N Type Female) and mounting type (Bracket Mount), enabling direct mechanical and electrical connection. However, the reduced physical height (39.250" and 39.500" respectively versus 64.016") may require installation space evaluation. The lower maximum power rating (300W versus 400W) must be assessed against system power requirements.

Q: What is the frequency compatibility between PLC1666N and the substitute parts?

A: The PLC1666N operates across 166MHz – 174MHz. Both Y1503 and Y1505 operate across 150MHz – 174MHz, which encompasses the PLC1666N band. Both substitutes are compatible with the PLC1666N frequency range.

Q: How do the gain specifications differ between PLC1666N and substitutes?

A: The PLC1666N specifies 7.1dBi gain. The Y1503 specifies 7.1dBd gain. The Y1505 specifies 9.2dBd gain. Note that dBi and dBd are different gain reference standards. The Y1505 provides higher directional gain compared to both the PLC1666N and Y1503.

Q: What is the significance of the element count difference?

A: The PLC1666N is a 6-Element Yagi antenna. The Y1503 is a 3-Element Yagi antenna. The Y1505 is a 5-Element Yagi antenna. Element count affects directional characteristics, gain, and physical dimensions. The Y1505 5-Element configuration provides a compromise between the PLC1666N 6-Element and Y1503 3-Element designs.

Q: Are there power handling limitations with the substitute parts?

A: The PLC1666N supports 400W maximum power. Both Y1503 and Y1505 support 300W maximum power. Applications requiring power levels between 300W and 400W must evaluate whether the reduced power rating is acceptable.

Q: What are the regulatory compliance differences?

A: The PLC1666N is RoHS Compliant. The Y1503 is ROHS3 Compliant. The Y1505 is RoHS Compliant. Both substitutes meet current regulatory requirements and provide improved compliance status compared to the obsolete PLC1666N.

Q: How do physical dimensions affect installation?

A: The PLC1666N height is 64.016" (162.60cm). The Y1503 height is 39.250" (996.95mm). The Y1505 height is 39.500" (100.33cm). The substitute parts are approximately 38% shorter, which may reduce wind loading and installation space requirements but could affect radiation pattern characteristics.