R413807121 RF Attenuator SMA 7dB 26.5GHz 2W Equivalent & Substitute Parts

Part Overview

The R413807121 is an RF attenuator manufactured by Radiall USA, Inc., designed for high-frequency signal attenuation applications. This SMA in-line module provides 7dB attenuation across a frequency range of 0 Hz to 26.5 GHz with 50 Ohm impedance and 2W power handling capability. The part is currently active in production and ROHS3 compliant. Substitute parts are identified when inventory constraints, lead time requirements, or specific application parameters necessitate alternative component selection while maintaining functional equivalence within defined electrical and mechanical specifications.

Substiute Parts

R413807121

Radiall USA, Inc.In Stock: 1044R413807121 Datasheet

Current PartRFQ

M3933/25-72N

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 880M3933/25-72N Datasheet

Parametric EquivalentRFQ

M3933/25-72S

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 1051M3933/25-72S Datasheet

Parametric EquivalentRFQ

P1AT-SAMF-6G2W-7

P1dB IncIn Stock: 829P1AT-SAMF-6G2W-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF attenuators is determined by matching the following critical parameters: attenuation value (7dB), package type (SMA In-Line Module), impedance (50 Ohms), and power rating (2W). The frequency range defines the operational bandwidth; substitutes with lower maximum frequency ratings are suitable only for applications operating within their specified frequency limits. All identified substitutes share the 7dB attenuation value and SMA in-line package configuration. Frequency range compatibility and power handling specifications must be evaluated against the specific application requirements. RoHS compliance status and qualification standards are secondary selection criteria based on regulatory and procurement requirements.

Parameter Comparison

Engineering Selection Recommendations

P1AT-SAMF-6G2W-7 (P1dB Inc) is suitable as a substitute for applications operating within the 0 Hz to 6 GHz frequency range. This part maintains full electrical equivalence with 7dB attenuation, 2W power handling, and 50 Ohm impedance. ROHS3 compliance matches the primary part specification. Frequency bandwidth limitation restricts use to sub-6 GHz applications only.

M3933/25-72S (Cinch Connectivity Solutions Midwest Microwave) is suitable for applications operating within the 0 Hz to 18 GHz frequency range. This part provides 7dB attenuation, 2W power handling, and 50 Ohm impedance matching. RoHS non-compliance requires evaluation against procurement and regulatory requirements. Frequency bandwidth extends to 18 GHz, providing broader coverage than the P1dB part but narrower than the primary R413807121 specification.

M3933/25-72N (Cinch Connectivity Solutions Midwest Microwave) is suitable for applications where power rating and impedance specifications are not critical design parameters. This part provides 7dB attenuation within the 0 Hz to 18 GHz frequency range. Military qualification under MIL-DTL-M3933 applies. RoHS non-compliance and unspecified power/impedance parameters require application-specific validation.

The R413807121 primary part remains the optimal selection for applications requiring full 26.5 GHz bandwidth coverage with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can M3933/25-72N be used as a direct substitute for R413807121?

A: M3933/25-72N shares the 7dB attenuation value and SMA in-line package configuration. However, power rating and impedance specifications are not provided for this part. Substitution is valid only when application requirements do not mandate specific power handling or impedance confirmation. Frequency range is limited to 18 GHz versus the primary part's 26.5 GHz capability.

Q: What is the frequency range limitation impact when using P1AT-SAMF-6G2W-7?

A: P1AT-SAMF-6G2W-7 operates within 0 Hz to 6 GHz. This part is suitable only for applications with maximum operating frequencies at or below 6 GHz. Applications requiring operation above 6 GHz must use M3933/25-72S (18 GHz maximum) or R413807121 (26.5 GHz maximum).

Q: Are there RoHS compliance differences between substitute parts?

A: R413807121 and P1AT-SAMF-6G2W-7 are both ROHS3 compliant. M3933/25-72N and M3933/25-72S are RoHS non-compliant. Procurement specifications requiring RoHS compliance restrict selection to R413807121 or P1AT-SAMF-6G2W-7.

Q: What packaging differences exist among these parts?

A: R413807121 and P1AT-SAMF-6G2W-7 are supplied in Bulk packaging. M3933/25-72N and M3933/25-72S are supplied in Bag packaging. Packaging format may affect inventory management and handling procedures but does not impact electrical performance.

Q: Do all substitute parts maintain 50 Ohm impedance and 2W power rating?

A: R413807121, P1AT-SAMF-6G2W-7, and M3933/25-72S all specify 50 Ohm impedance and 2W power rating. M3933/25-72N does not provide power rating or impedance specifications in available documentation. Confirmation of these parameters is required before substitution in applications where impedance matching and power handling are critical.

Q: Which substitute part provides the broadest frequency coverage?

A: M3933/25-72S provides the broadest frequency coverage among substitutes at 0 Hz to 18 GHz. The primary R413807121 part extends to 26.5 GHz. P1AT-SAMF-6G2W-7 is limited to 6 GHz maximum frequency.