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R413807115 RF Attenuator SMA 7dB 4GHz 2W Equivalent & Substitute Parts
Part Overview
The R413807115 is an RF attenuator manufactured by Radiall USA, Inc., designed for in-line attenuation applications in RF and microwave systems. This SMA-connectorized module provides 7dB attenuation across a 0 Hz to 4 GHz frequency range with 50-ohm impedance and 2-watt power handling capability. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or extended frequency range operation while maintaining core electrical specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Attenuation Value | 7dB | Core electrical specification; must match exactly |
| Frequency Range | 0 Hz ~ 4 GHz | Defines operational bandwidth; substitutes may exceed this range |
| Power Rating | 2W | Thermal and reliability specification; critical for power applications |
| Impedance | 50 Ohms | System matching requirement; must be maintained |
| Connector Type | SMA In-Line Module | Physical and electrical interface; must match for direct substitution |
| Package Type | SMA In-Line Module | Form factor and mounting compatibility |
Substitute Part Grouping Explanation
Substitute parts for the R413807115 are qualified based on the following criteria:
Primary Matching Parameters:
- Attenuation Value: 7dB (exact match required)
- Impedance: 50 Ohms (exact match required)
- Connector Type: SMA In-Line Module (exact match required)
- Power Rating: 2W (exact match or higher acceptable)
Secondary Considerations:
- Frequency Range: The R413807115 operates 0 Hz ~ 4 GHz. Substitute parts with extended frequency ranges (0 Hz ~ 6 GHz or 0 Hz ~ 18 GHz) remain functionally compatible within the original 4 GHz specification window and provide additional operational margin.
- Packaging: Bulk and Bag packaging formats are both acceptable for component-level substitution.
- Compliance: RoHS status and ECCN classification are provided for regulatory and export control reference.
All identified substitutes maintain the core electrical parameters necessary for direct functional replacement in 50-ohm RF systems requiring 7dB attenuation at 2-watt power levels.
Parameter Comparison
| Parameter | R413807115 (Radiall USA) | P1AT-SAMF-6G2W-7 (P1dB Inc) | M3933/25-72S (Cinch Connectivity) | M3933/25-72N (Cinch Connectivity) |
|---|---|---|---|---|
| Manufacturer | Radiall USA, Inc. | P1dB Inc | Cinch Connectivity Solutions Midwest Microwave | Cinch Connectivity Solutions Midwest Microwave |
| Attenuation Value | 7dB | 7dB | 7dB | 7dB |
| Frequency Range | 0 Hz ~ 4 GHz | 0 Hz ~ 6 GHz | 0 Hz ~ 18 GHz | 0 Hz ~ 18 GHz |
| Power Rating | 2W | 2W | 2W | Not specified |
| Impedance | 50 Ohms | 50 Ohms | 50 Ohms | Not specified |
| Connector Type | SMA In-Line Module | SMA In-Line Module | SMA In-Line Module | SMA In-Line Module |
| Package Type | Bulk | Bulk | Bag | Bag |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | RoHS non-compliant | RoHS non-compliant |
| Product Status | Active | Active | Active | Active |
| ECCN | EAR99 | EAR99 | EAR99 | EAR99 |
Engineering Selection Recommendations
Direct Substitution (Preferred):
The P1AT-SAMF-6G2W-7 (P1dB Inc) is the preferred substitute for the R413807115. This part maintains all critical electrical parameters: 7dB attenuation, 50-ohm impedance, 2-watt power rating, and SMA in-line module form factor. The extended frequency range (0 Hz ~ 6 GHz) provides additional operational margin beyond the original 4 GHz specification. Both parts are ROHS3 compliant and carry EAR99 classification. Packaging is Bulk format for both units, ensuring consistency in handling and inventory management.
Extended Frequency Range Substitutes:
The M3933/25-72S (Cinch Connectivity Solutions Midwest Microwave) provides full electrical compatibility with the R413807115 across all specified parameters: 7dB attenuation, 50-ohm impedance, 2-watt power rating, and SMA in-line module configuration. The frequency range extends to 18 GHz, providing significant operational margin. This part is RoHS non-compliant and carries MSL 1 (Unlimited) rating. Selection of this substitute is appropriate when extended frequency coverage is required and RoHS compliance is not a regulatory requirement.
Military-Grade Alternative:
The M3933/25-72N (Cinch Connectivity Solutions Midwest Microwave) is qualified to MIL-DTL-M3933 military specification. This part provides 7dB attenuation and SMA in-line module configuration with extended frequency range (0 Hz ~ 18 GHz). Power rating is not specified in available documentation. This substitute is appropriate for military or aerospace applications requiring MIL-DTL qualification. RoHS non-compliance and MSL 1 (Unlimited) rating apply.
Compliance Considerations:
Selection between ROHS3-compliant parts (R413807115, P1AT-SAMF-6G2W-7) and RoHS non-compliant alternatives (M3933/25-72S, M3933/25-72N) depends on end-application regulatory requirements. All parts carry EAR99 ECCN classification and HTSUS 8533.21.0090 tariff code.
Frequently Asked Questions (FAQ)
Q: Can the P1AT-SAMF-6G2W-7 be used as a direct replacement for the R413807115?
A: Yes. The P1AT-SAMF-6G2W-7 maintains all critical electrical specifications: 7dB attenuation, 50-ohm impedance, 2-watt power rating, and SMA in-line module connector. The extended frequency range (0 Hz ~ 6 GHz versus 0 Hz ~ 4 GHz) provides additional operational margin and does not affect compatibility within the original 4 GHz operating window.
Q: What is the difference between the M3933/25-72S and M3933/25-72N?
A: Both parts provide 7dB attenuation, SMA in-line module configuration, and extended frequency range (0 Hz ~ 18 GHz). The M3933/25-72S specifies 2-watt power rating and 50-ohm impedance. The M3933/25-72N is qualified to MIL-DTL-M3933 military specification; power rating is not specified in available documentation. The M3933/25-72N is appropriate for military or aerospace applications requiring formal military qualification.
Q: Are there packaging differences between substitute parts?
A: Yes. The R413807115 and P1AT-SAMF-6G2W-7 are supplied in Bulk packaging. The M3933/25-72S and M3933/25-72N are supplied in Bag packaging. Both packaging formats are acceptable for component-level substitution; packaging selection depends on inventory management and procurement procedures.
Q: Do all substitute parts meet RoHS compliance requirements?
A: No. The R413807115 and P1AT-SAMF-6G2W-7 are ROHS3 compliant. The M3933/25-72S and M3933/25-72N are RoHS non-compliant. Selection of RoHS-compliant parts is required for applications subject to RoHS directive requirements. Non-compliant parts are suitable for military, aerospace, and other applications where RoHS compliance is not mandated.
Q: Can the M3933/25-72N be used in commercial applications?
A: The M3933/25-72N is qualified to MIL-DTL-M3933 military specification and is appropriate for military and aerospace applications. Commercial applications requiring RoHS compliance should use the R413807115 or P1AT-SAMF-6G2W-7. Commercial applications without RoHS requirements may use the M3933/25-72N; however, the P1AT-SAMF-6G2W-7 is the preferred commercial substitute due to ROHS3 compliance and extended frequency range.
Q: What is the significance of the extended frequency range in substitute parts?
A: The R413807115 operates 0 Hz ~ 4 GHz. Substitute parts with extended frequency ranges (P1AT-SAMF-6G2W-7: 0 Hz ~ 6 GHz; M3933/25-72S and M3933/25-72N: 0 Hz ~ 18 GHz) provide additional operational margin and remain fully compatible within the original 4 GHz specification window. Extended frequency range does not affect performance at 4 GHz and below.
Q: Are all parts rated for 2-watt power handling?
A: The R413807115, P1AT-SAMF-6G2W-7, and M3933/25-72S are all rated for 2-watt power handling. The M3933/25-72N power rating is not specified in available documentation. For applications requiring confirmed 2-watt power rating, use the R413807115, P1AT-SAMF-6G2W-7, or M3933/25-72S.
Q: What is the impedance specification for all parts?
A: The R413807115, P1AT-SAMF-6G2W-7, and M3933/25-72S are all specified at 50-ohm impedance. The M3933/25-72N impedance is not specified in available documentation. For applications requiring confirmed 50-ohm impedance, use the R413807115, P1AT-SAMF-6G2W-7, or M3933/25-72S.
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