RF Attenuators 6803.01.A Equivalent & Substitute Parts

Part Overview

The 6803.01.A is an RF attenuator manufactured by Huber+Suhner, Inc., designed for inline attenuation applications in RF and microwave systems. This component provides 3dB attenuation across a frequency range of 0 Hz to 4 GHz with 50 Ohms impedance and 2W power handling capability. The BNC connector configuration enables direct integration into standard RF signal paths. The product maintains Active status and is REACH Unaffected, supporting continued availability for new designs and maintenance applications.

Equivalent substitute parts are identified based on matching electrical specifications and mechanical form factors. Substitute identification becomes necessary for supply chain continuity, inventory optimization, or when primary sources experience allocation constraints.

Substiute Parts

6803.01.A

Huber+Suhner, Inc.In Stock: 8686803.01.A Datasheet

Current PartRFQ

PE7437-3

PasternackIn Stock: 781PE7437-3 Datasheet

Parametric EquivalentRFQ

PE7438-3

PasternackIn Stock: 1008PE7438-3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF attenuators is determined by strict equivalence across five critical parameters: attenuation value, frequency range, power rating, impedance, and connector type. All identified substitutes must match these parameters exactly to ensure functional interchangeability without circuit redesign or performance degradation.

The 6803.01.A specifies 50 Ohms impedance as a core electrical requirement. Substitute parts must maintain this impedance specification to preserve system impedance matching and prevent signal reflection or insertion loss variation.

Frequency range, attenuation value, and power rating must be identical or exceed the original specification. The BNC In-Line Module package type is a mechanical requirement that ensures physical compatibility with existing RF signal paths and connector interfaces.

Parameter Comparison

Engineering Selection Recommendations

PE7437-3 (Pasternack) is a direct parametric equivalent to the 6803.01.A. This substitute matches all critical electrical specifications: 3dB attenuation, 0 Hz to 4 GHz frequency range, 2W power rating, and 50 Ohms impedance. The BNC In-Line Module package provides mechanical compatibility. PE7437-3 carries Active product status, RoHS Compliant certification, and REACH Unaffected designation, supporting regulatory compliance requirements equivalent to the original part.

PE7438-3 (Pasternack) shares identical attenuation, frequency range, power rating, and package specifications with the 6803.01.A. However, PE7438-3 specifies 75 Ohms impedance, which differs from the 50 Ohms requirement of the original part. This impedance mismatch creates incompatibility for direct substitution in 50 Ohms RF systems. PE7438-3 is suitable only for applications designed around 75 Ohms system impedance.

For direct substitution in existing 50 Ohms RF circuits, PE7437-3 is the appropriate equivalent. Both substitute and original part maintain Active status and REACH compliance, supporting uninterrupted supply chain operations.

Frequently Asked Questions (FAQ)

Q: Can PE7438-3 be used as a substitute for 6803.01.A?

A: No. While PE7438-3 matches the attenuation value, frequency range, power rating, and package type, it specifies 75 Ohms impedance instead of the required 50 Ohms. Direct substitution would introduce impedance mismatch, causing signal reflection and performance degradation in 50 Ohms systems.

Q: What makes PE7437-3 a valid equivalent for 6803.01.A?

A: PE7437-3 matches all critical parameters: 3dB attenuation, 0 Hz to 4 GHz frequency range, 2W power handling, 50 Ohms impedance, and BNC In-Line Module package. Both parts maintain Active product status and REACH Unaffected compliance, ensuring functional and regulatory equivalence.

Q: Are there any compliance differences between 6803.01.A and PE7437-3?

A: Both parts are Active products with REACH Unaffected status. PE7437-3 carries additional RoHS Compliant certification. Both parts support regulatory requirements for new designs and maintenance applications.

Q: Does the BNC connector type affect substitution eligibility?

A: Yes. The BNC In-Line Module package is a mandatory mechanical requirement for all substitutes. This connector type ensures physical compatibility with existing RF signal paths and interface standards. Substitutes must maintain identical connector configuration.

Q: Can impedance be adjusted during installation to make PE7438-3 compatible?

A: No. Impedance is an intrinsic electrical property of the attenuator design and cannot be modified during installation. PE7438-3 is designed for 75 Ohms systems and is not compatible with 50 Ohms applications without circuit redesign.