HV-AT(4)-PJ RF Attenuator Equivalent & Substitute Parts

Part Overview

The HV-AT(4)-PJ is an RF attenuator manufactured by Hirose Electric Co Ltd, designed for high-frequency applications requiring 4dB attenuation across a broad frequency spectrum. This component operates from 0 Hz to 67 GHz with 50 Ohm impedance and 1W power handling capability in a 1.85mm in-line module format. The part is designated as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure continued availability and supply chain continuity for applications currently utilizing this component.

Substiute Parts

HV-AT(4)-PJ

Hirose Electric Co LtdIn Stock: 1130HV-AT(4)-PJ Datasheet

Current PartRFQ

PE7403-4

PasternackIn Stock: 1222PE7403-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF attenuators is determined by the following critical parameters: attenuation value, frequency range coverage, impedance matching, power handling capacity, and physical package compatibility. The PE7403-4 qualifies as a direct substitute based on matching attenuation value (4dB), impedance (50 Ohms), power rating (1W), and module-based package format. The frequency range of the substitute (0 Hz ~ 65 GHz) provides coverage across the operational bandwidth required by the HV-AT(4)-PJ, with the primary difference being a 2 GHz reduction in upper frequency limit. Both components maintain equivalent electrical performance within their respective frequency specifications and are suitable for applications where the full 67 GHz upper limit is not required.

Parameter Comparison

Engineering Selection Recommendations

The PE7403-4 is qualified as a direct substitute for the HV-AT(4)-PJ based on electrical parameter equivalence and active product status. The substitute maintains identical attenuation, impedance, and power specifications. Both components are RoHS compliant, with the PE7403-4 meeting ROHS3 standards and the original part meeting RoHS requirements. The frequency range difference (65 GHz vs 67 GHz) represents a 2 GHz variance at the upper limit and does not impact performance for applications operating within the 0 Hz to 65 GHz band. The PE7403-4 is currently in active production status, providing assured long-term availability compared to the Last Time Buy status of the original component.

Frequently Asked Questions (FAQ)

Q: What determines if PE7403-4 can replace HV-AT(4)-PJ? A: Substitution is valid when attenuation value, impedance, power rating, and frequency range coverage are equivalent. Both components meet these criteria with matching 4dB attenuation, 50 Ohm impedance, and 1W power handling. The frequency range difference (65 GHz vs 67 GHz) is acceptable for applications not requiring operation above 65 GHz.

Q: Are there package compatibility considerations? A: Both components are module-based packages. The HV-AT(4)-PJ uses a 1.85mm in-line module format, while the PE7403-4 is specified as a module. Physical dimensions and connector compatibility should be verified against application-specific mechanical requirements before implementation.

Q: Why is the HV-AT(4)-PJ marked Last Time Buy? A: Last Time Buy status indicates the manufacturer has discontinued production. The PE7403-4 is an active product from Pasternack, ensuring continued supply availability for equivalent functionality.

Q: Do both parts meet current compliance standards? A: Yes. The HV-AT(4)-PJ is RoHS Compliant. The PE7403-4 meets ROHS3 Compliant standards, representing current regulatory requirements. Both components are suitable for applications requiring RoHS compliance.

Q: What is the frequency range impact of the 2 GHz difference? A: The PE7403-4 operates to 65 GHz versus the HV-AT(4)-PJ at 67 GHz. This difference is relevant only for applications requiring operation above 65 GHz. For applications with maximum frequency requirements at or below 65 GHz, the substitute provides equivalent performance.