R413810150 RF Attenuator SMA 10dB Equivalent & Substitute Parts

Part Overview

The R413810150 is a precision RF attenuator manufactured by Radiall USA, Inc., designed for in-line attenuation applications across broadband frequency ranges. This SMA-connectorized module provides 10dB attenuation with 2W power handling capability and 50-ohm impedance matching. The part is currently active in production status with 748 units in stock. Equivalent and substitute parts are identified when they share the same attenuation value, impedance, power rating, and connector type, while operating within compatible or overlapping frequency ranges. Alternative models may be required due to inventory availability, frequency-specific application requirements, or compliance certifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	R413810150
Manufacturer	Radiall USA, Inc.
Attenuation Value	10dB
Frequency Range	0 Hz ~ 23 GHz
Power Rating	2W
Impedance	50 Ohms
Package / Case	SMA In-Line Module
Product Status	Active
ECCN	EAR99

Substitute Part Grouping Explanation

Substitute parts for the R413810150 are classified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

Attenuation Value: 10dB (exact match required)
Impedance: 50 Ohms (exact match required)
Power Rating: 2W (exact match required)
Connector Type: SMA In-Line Module (exact match required)

Secondary Compatibility Criteria:

Frequency Range: Substitutes must operate within or encompass the application frequency band. Parts with frequency ranges of 0 Hz ~ 18 GHz, 0 Hz ~ 6 GHz, or 0 Hz ~ 40 GHz are compatible with applications requiring operation up to 23 GHz when the specific application frequency does not exceed the substitute's upper limit.

Compliance Considerations:

RoHS Status and REACH compliance are noted for regulatory environments requiring specific certifications
Military qualification (MIL-DTL-M3933) is available for applications requiring military-grade components

Substitutes are sourced from manufacturers including Amphenol RF, Cinch Connectivity Solutions Midwest Microwave, P1dB Inc, and Fairview Microwave, all providing equivalent electrical performance within the specified parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation (dB)	Frequency Range (GHz)	Power (W)	Impedance (Ohms)	Package Type	Product Status	RoHS Status
R413810150	Radiall USA, Inc.	10	0 ~ 23	2	50	SMA In-Line Module	Active	Not Specified
R411810121	Radiall USA, Inc.	10	0 ~ 18	2	50	SMA In-Line Module	Active	ROHS3 Compliant
R413810115	Radiall USA, Inc.	10	0 ~ 4	2	50	SMA In-Line Module	Active	RoHS Compliant
ATS-1M1F-10DB2W	Amphenol RF	10	0 ~ 6	2	50	SMA In-Line Module	Active	ROHS3 Compliant
M3933/25-78N	Cinch Connectivity Solutions Midwest Microwave	10	0 ~ 18	Not Specified	Not Specified	SMA In-Line Module	Active	RoHS non-compliant
M3933/25-78S	Cinch Connectivity Solutions Midwest Microwave	10	0 ~ 18	2	50	SMA In-Line Module	Active	RoHS non-compliant
P1AT-29MF-40G2W-10	P1dB Inc	10	0 ~ 40	2	50	2.92mm In-Line Module	Active	ROHS3 Compliant
P1AT-SAMF-18G2W-10	P1dB Inc	10	0 ~ 18	2	50	SMA In-Line Module	Active	ROHS3 Compliant
P1AT-SAMF-6G2W-10	P1dB Inc	10	0 ~ 6	2	50	SMA In-Line Module	Active	ROHS3 Compliant
SA18E-10	Fairview Microwave	10	0 ~ 18	2	50	SMA In-Line Module	Active	ROHS3 Compliant
SA18H-10	Fairview Microwave	10	0 ~ 18	2	50	SMA In-Line Module	Active	ROHS3 Compliant

Engineering Selection Recommendations

Full-Range Equivalents (0 Hz ~ 23 GHz Coverage):

The R413810150 operates across the widest frequency range among available substitutes. No substitute part provides identical 0 Hz ~ 23 GHz coverage with SMA connectors. The P1AT-29MF-40G2W-10 from P1dB Inc exceeds the frequency range but uses 2.92mm connectors rather than SMA, making it incompatible for direct mechanical substitution.

SMA-Connectorized Substitutes with Extended Frequency Coverage (0 Hz ~ 18 GHz):

The following parts provide full SMA compatibility with 10dB attenuation, 2W power, and 50-ohm impedance across 0 Hz ~ 18 GHz:

R411810121 (Radiall USA, Inc.) – ROHS3 Compliant, REACH Affected
M3933/25-78S (Cinch Connectivity Solutions Midwest Microwave) – RoHS non-compliant, MIL-DTL-M3933 qualified
P1AT-SAMF-18G2W-10 (P1dB Inc) – ROHS3 Compliant, REACH Unaffected
SA18E-10 (Fairview Microwave) – ROHS3 Compliant
SA18H-10 (Fairview Microwave) – ROHS3 Compliant

These parts are suitable for applications operating up to 18 GHz. Applications requiring operation above 18 GHz up to 23 GHz must use the original R413810150 or evaluate frequency-limited alternatives for specific application bands.

Frequency-Limited Substitutes (0 Hz ~ 6 GHz):

For applications operating only within 0 Hz ~ 6 GHz:

ATS-1M1F-10DB2W (Amphenol RF) – ROHS3 Compliant, REACH Affected
P1AT-SAMF-6G2W-10 (P1dB Inc) – ROHS3 Compliant, REACH Unaffected

Military-Grade Option:

M3933/25-78S provides MIL-DTL-M3933 qualification for military applications, though RoHS compliance is not maintained.

Compliance-Driven Selection:

For RoHS3 and REACH compliance requirements, select from Radiall, P1dB, or Fairview products. For applications without RoHS requirements, Cinch Connectivity Solutions Midwest Microwave M3933/25-78S offers military qualification.

Frequently Asked Questions (FAQ)

Q: Can R411810121 replace R413810150 in all applications?

A: R411810121 is suitable only for applications operating within 0 Hz ~ 18 GHz. Applications requiring operation between 18 GHz and 23 GHz must use R413810150 or evaluate alternative connector types. Both parts share identical attenuation, power, and impedance specifications.

Q: What is the difference between M3933/25-78N and M3933/25-78S?

A: M3933/25-78S specifies 2W power rating and 50-ohm impedance, matching the R413810150 electrical parameters. M3933/25-78N does not specify power or impedance values. M3933/25-78S is the appropriate substitute for the R413810150.

Q: Why is P1AT-29MF-40G2W-10 listed if it uses 2.92mm connectors?

A: P1AT-29MF-40G2W-10 is included for reference as a frequency-extended alternative with identical electrical specifications (10dB, 2W, 50 ohms). However, the 2.92mm connector type is mechanically incompatible with SMA-based systems. Direct substitution requires SMA-connectorized parts.

Q: Are all listed substitutes in active production?

A: All substitute parts listed carry active product status. Inventory levels vary by manufacturer and part number, ranging from 18 units to over 18,000 units in stock.

Q: Which substitute offers the best RoHS and REACH compliance?

A: P1dB Inc parts (P1AT-SAMF-18G2W-10 and P1AT-SAMF-6G2W-10) are ROHS3 Compliant and REACH Unaffected. Radiall R411810121 is ROHS3 Compliant and REACH Affected. Fairview Microwave SA18E-10 and SA18H-10 are ROHS3 Compliant with unspecified REACH status.

Q: Can frequency-limited parts be used in broadband systems?

A: Frequency-limited substitutes (0 Hz ~ 6 GHz or 0 Hz ~ 4 GHz) are suitable only for systems operating entirely within their specified frequency range. Broadband systems requiring full 0 Hz ~ 23 GHz coverage must use R413810150 or 0 Hz ~ 18 GHz alternatives with documented frequency limitations.

Q: What is the significance of MIL-DTL-M3933 qualification?

A: MIL-DTL-M3933 qualification indicates the M3933/25-78S meets military specification standards for RF attenuators. This certification is required for military and defense applications but is not necessary for commercial or industrial use.

Q: Are connector gender configurations identical across all SMA substitutes?

A: All listed SMA In-Line Module substitutes use standard SMA connectors. Fairview Microwave parts (SA18E-10 and SA18H-10) are described as plug-jack configurations. Verify specific connector gender (male/female) requirements for your application before selection.

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