PE4576 RF Antenna 460MHz Yagi UHF Bracket Mount - Equivalent & Substitute Parts

Part Overview

The PE4576 is a 460MHz Yagi 6-Element RF antenna manufactured by TE Connectivity Laird, designed for UHF applications in the 450MHz to 470MHz frequency band. This antenna features an 8.2dBd gain rating and utilizes a UHF termination with bracket mount configuration. The product is currently classified as obsolete, making identification of equivalent substitute parts essential for system maintenance, repair, and component sourcing in active installations.

Substiute Parts

PE4576

TE Connectivity LairdIn Stock: 966PE4576 Datasheet

Current PartRFQ

Y4506

TE Connectivity LairdIn Stock: 767Y4506 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PE4576 is determined by the following critical parameters:

Frequency Compatibility: The substitute part must operate within or substantially overlap the 450MHz to 470MHz band. The PE4576 operates at a 460MHz center frequency.

Antenna Configuration: The substitute must maintain the same Yagi 6-Element antenna type to preserve radiation pattern characteristics and mechanical form factor.

Mounting Interface: The substitute must support bracket mount configuration to ensure compatibility with existing installation infrastructure.

Termination Type: While the PE4576 uses UHF termination, substitute parts may employ alternative termination types (such as N Type Female) provided the electrical interface can be accommodated through standard adapters or system redesign.

Frequency Range Overlap: The substitute frequency range must encompass or closely align with the operational band of the main part.

Based on these criteria, the Y4506 qualifies as a substitute part. The Y4506 operates at 465MHz (within 5MHz of the PE4576 center frequency) and covers the 450MHz to 480MHz band, which encompasses the PE4576 operating range. Both parts utilize 6-Element Yagi configuration and bracket mount design.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The PE4576 is classified as obsolete, while the Y4506 maintains active product status with current manufacturing support. Selection of the Y4506 ensures access to ongoing inventory, technical documentation, and manufacturer support.

Compliance and Certification: Both the PE4576 and Y4506 are RoHS Compliant and carry identical MSL ratings of 1 (Unlimited), indicating equivalent environmental compliance and handling requirements. Both parts are assigned ECCN 5A991G classification.

Frequency Band Alignment: The Y4506 operates at 465MHz with a 450MHz to 480MHz frequency range, which encompasses the PE4576 operating band of 450MHz to 470MHz. The 5MHz center frequency offset is within typical system design tolerances for UHF antenna applications.

Termination Interface: The primary technical difference is the termination type. The PE4576 uses UHF termination while the Y4506 uses N Type Female termination. System integration requires either a UHF-to-N Type Female adapter or modification of the RF transmission line interface.

Physical Dimensions: The Y4506 has a maximum height of 40.313" (102.40cm) compared to the PE4576 at 35.827" (910.00mm). Installation verification is required to confirm adequate clearance in the mounting location.

Performance Characteristics: The Y4506 provides enhanced performance specifications including 10.2dBd gain (versus 8.2dBd for PE4576), specified VSWR of 2, return loss of -10dB, and maximum power rating of 300W. These specifications are not provided for the PE4576.

Frequently Asked Questions (FAQ)

Q: Can the Y4506 directly replace the PE4576 without modifications?

A: Direct mechanical replacement is possible due to identical bracket mount configuration and 6-Element Yagi design. However, the termination type differs (N Type Female versus UHF). A UHF-to-N Type Female adapter is required for RF connection compatibility. Physical clearance must be verified due to the 4.486" height difference.

Q: What is the frequency compatibility between these two antennas?

A: The PE4576 operates at 460MHz with a 450MHz to 470MHz range. The Y4506 operates at 465MHz with a 450MHz to 480MHz range. The Y4506 frequency range fully encompasses the PE4576 operating band, with only a 5MHz center frequency offset. This offset is within acceptable tolerances for UHF antenna applications.

Q: Are there compliance or certification differences between the PE4576 and Y4506?

A: Both parts are RoHS Compliant with identical MSL ratings of 1 (Unlimited). Both carry the same ECCN classification (5A991G). No compliance or certification barriers exist for substitution.

Q: What is the significance of the gain difference between the two antennas?

A: The Y4506 provides 10.2dBd gain compared to 8.2dBd for the PE4576, representing a 2.0dBd improvement. This higher gain results in increased antenna directivity and improved signal reception/transmission efficiency. System design must account for this performance change.

Q: Why is the Y4506 taller than the PE4576?

A: The Y4506 maximum height is 40.313" (102.40cm) versus 35.827" (910.00mm) for the PE4576. The additional height contributes to the improved gain specification. Installation clearance verification is required before substitution.

Q: What does the Y4506 VSWR specification of 2 indicate?

A: VSWR (Voltage Standing Wave Ratio) of 2 indicates the impedance matching quality of the antenna. A lower VSWR value indicates better impedance matching. The PE4576 does not provide a specified VSWR value. The Y4506 specification of 2 is acceptable for most UHF applications.

Q: Is an adapter required to connect the Y4506 to existing PE4576 RF cabling?

A: Yes. The PE4576 uses UHF termination while the Y4506 uses N Type Female termination. A UHF-to-N Type Female adapter is required to connect the Y4506 to existing UHF-terminated RF transmission lines.

Q: What is the maximum power handling capability of these antennas?

A: The PE4576 does not specify a maximum power rating. The Y4506 is rated for 300W maximum power. System design must ensure RF power levels do not exceed the Y4506 300W specification.

Q: Are there inventory considerations for these parts?

A: The PE4576 is obsolete with 922 pieces reported in stock. The Y4506 is an active product with 743 pieces in stock. Long-term availability and support favor the Y4506 selection.