ATS-1M1F-02DB2W RF Attenuator Equivalent & Substitute Parts

Part Overview

The ATS-1M1F-02DB2W is an RF attenuator manufactured by Amphenol RF, designed for RF signal attenuation applications requiring 2dB reduction across a 0 Hz to 6 GHz frequency range. This SMA in-line module operates at 50 Ohms impedance with 2W power handling capability. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits operation across extended frequency ranges while maintaining core electrical specifications.

Key Parameters

Parameter	Value
Attenuation Value	2dB
Frequency Range	0 Hz ~ 6 GHz
Impedance	50 Ohms
Power Rating	2W
Package Type	SMA In-Line Module
Manufacturer	Amphenol RF
Product Status	Active
RoHS Compliance	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the ATS-1M1F-02DB2W are qualified based on the following core electrical and mechanical parameters:

Primary Substitution Criteria:

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

Secondary Consideration:

Frequency Range: The main part operates 0 Hz ~ 6 GHz. Substitute parts with extended frequency ranges (0 Hz ~ 12.4 GHz, 0 Hz ~ 18 GHz) remain functionally compatible within the main part's operating band and provide additional operational flexibility.

All identified substitutes maintain the core electrical specifications (2dB attenuation, 50 Ohm impedance, 2W power handling) and physical form factor (SMA in-line module configuration) required for direct replacement in circuit applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation (dB)	Frequency Range	Impedance (Ohms)	Power (W)	Package Type	RoHS Status	Inventory (Pcs)
ATS-1M1F-02DB2W	Amphenol RF	2	0 Hz ~ 6 GHz	50	2	SMA In-Line Module	ROHS3 Compliant	660
M3933/25-28N	Cinch Connectivity Solutions Midwest Microwave	2	0 Hz ~ 12.4 GHz	50	2	SMA In-Line Module	RoHS Non-Compliant	1019
M3933/25-62S	Cinch Connectivity Solutions Midwest Microwave	2	0 Hz ~ 18 GHz	50	2	SMA In-Line Module	RoHS Non-Compliant	739
P1AT-SAMF-18G2W-2	P1dB Inc	2	0 Hz ~ 18 GHz	50	2	SMA In-Line Module	ROHS3 Compliant	1053
SF0929-6200-02	Amphenol SV Microwave	2	0 Hz ~ 18 GHz	50	2	SMA In-Line Module	ROHS3 Compliant	846

Engineering Selection Recommendations

ROHS3 Compliant Substitutes (Preferred for Regulated Applications):

The P1AT-SAMF-18G2W-2 (P1dB Inc) and SF0929-6200-02 (Amphenol SV Microwave) maintain ROHS3 compliance matching the original ATS-1M1F-02DB2W specification. Both parts provide extended frequency operation to 18 GHz while preserving all core electrical parameters. The P1AT-SAMF-18G2W-2 offers the highest inventory availability at 1053 pieces. The SF0929-6200-02 provides an alternative from the Amphenol family with 846 pieces in stock.

RoHS Non-Compliant Substitutes (Legacy Applications):

The M3933/25-28N and M3933/25-62S (Cinch Connectivity Solutions Midwest Microwave) are functionally equivalent but do not meet ROHS3 compliance. These parts are suitable for applications where RoHS compliance is not required. The M3933/25-62S extends frequency coverage to 18 GHz, while the M3933/25-28N operates to 12.4 GHz.

Compliance Considerations:

Applications subject to ROHS3 regulatory requirements must use P1AT-SAMF-18G2W-2, SF0929-6200-02, or the original ATS-1M1F-02DB2W. Applications without RoHS compliance mandates may utilize any substitute part based on availability and frequency range requirements.

Frequently Asked Questions (FAQ)

Q: Can M3933/25-28N or M3933/25-62S be used as direct replacements for ATS-1M1F-02DB2W?

A: Yes, from an electrical and mechanical standpoint. Both parts maintain 2dB attenuation, 50 Ohm impedance, 2W power rating, and SMA in-line module packaging. However, these Cinch parts are RoHS non-compliant, whereas the original part is ROHS3 compliant. Substitution is permissible only in applications where RoHS compliance is not a regulatory requirement.

Q: What is the advantage of substitutes with extended frequency ranges?

A: Substitutes rated to 12.4 GHz or 18 GHz provide operational flexibility beyond the original 6 GHz specification. These parts function identically within the 0 Hz to 6 GHz band and enable use in higher-frequency applications without component redesign. Extended frequency rating does not affect performance in lower-frequency circuits.

Q: Are there packaging differences between the main part and substitutes?

A: The main part (ATS-1M1F-02DB2W) is supplied in Bulk packaging. Substitute M3933/25-28N and M3933/25-62S are supplied in Bag packaging. The P1AT-SAMF-18G2W-2 and SF0929-6200-02 are supplied in Bulk packaging, matching the original. Packaging format does not affect electrical performance or mechanical compatibility.

Q: Which substitute offers the best compliance profile?

A: Both P1AT-SAMF-18G2W-2 and SF0929-6200-02 are ROHS3 compliant and REACH unaffected, matching or exceeding the compliance status of the original part. The P1AT-SAMF-18G2W-2 provides the highest inventory availability at 1053 pieces.

Q: Can substitutes be mixed in the same circuit or assembly?

A: Yes. All substitute parts maintain identical electrical specifications (2dB attenuation, 50 Ohm impedance, 2W power handling) and physical form factor (SMA in-line module). Multiple substitute parts can be used interchangeably within the same design without performance degradation.

Q: What is the ECCN classification for these parts?

A: The original ATS-1M1F-02DB2W and all identified substitutes (M3933/25-28N, M3933/25-62S, SF0929-6200-02) are classified as EAR99. The P1AT-SAMF-18G2W-2 classification was not provided in the available data.

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