CT3353-06 RF Attenuator Equivalent & Substitute Parts

Part Overview

The CT3353-06 is a 6dB RF attenuator manufactured by Cal Test Electronics, designed for inline attenuation applications across 0 Hz to 4 GHz frequency range. This BNC-connectorized module operates at 50 Ohms impedance with 2W power handling capability. The part is currently active in production with full ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical parameters and mechanical packaging are maintained across the specified operational range.

Substiute Parts

CT3353-06

Cal Test ElectronicsIn Stock: 1132CT3353-06 Datasheet

Current PartRFQ

CT3369A-06

Cal Test ElectronicsIn Stock: 871CT3369A-06 Datasheet

Parametric EquivalentRFQ

PE7437-6

PasternackIn Stock: 945PE7437-6 Datasheet

Parametric EquivalentRFQ

PE7438-6

PasternackIn Stock: 1130PE7438-6 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: attenuation value (6dB), frequency range (0 Hz ~ 4 GHz), power rating (2W), package type (BNC In-Line Module), and connector interface. The CT3353-06 accepts substitutes that maintain these electrical and mechanical specifications. Impedance is a critical parameter that must match exactly for direct substitution without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

CT3369A-06 is a direct parametric equivalent to CT3353-06, maintaining identical electrical specifications and impedance matching. Both parts are ROHS3 compliant and manufactured by Cal Test Electronics with active product status.

PE7437-6 is a parametric equivalent with matching 50 Ohm impedance, attenuation, frequency range, and power rating. This Pasternack part maintains RoHS compliance and active production status, suitable for direct substitution in 50 Ohm systems.

PE7438-6 operates at 75 Ohm impedance and is not suitable as a direct substitute for the CT3353-06 in 50 Ohm circuits. This part requires circuit impedance redesign and is applicable only to 75 Ohm system architectures.

Frequently Asked Questions (FAQ)

Q: Can PE7438-6 replace CT3353-06 in my application? A: No. PE7438-6 operates at 75 Ohm impedance while CT3353-06 requires 50 Ohm impedance. Direct substitution will cause impedance mismatch and circuit performance degradation.

Q: Are CT3369A-06 and CT3353-06 interchangeable? A: Yes. Both parts are identical in electrical parameters, impedance, frequency range, power rating, and BNC In-Line Module packaging. They are manufactured by the same supplier with equivalent compliance certifications.

Q: Can I use PE7437-6 instead of CT3353-06? A: Yes. PE7437-6 matches all critical parameters: 6dB attenuation, 0 Hz ~ 4 GHz frequency range, 50 Ohm impedance, 2W power rating, and BNC In-Line Module package. Both parts maintain active production status and RoHS compliance.

Q: What is the primary difference between the substitute options? A: CT3369A-06 and PE7437-6 are both direct substitutes with identical electrical specifications. The selection between them depends on supplier availability, lead time, and procurement preferences. PE7438-6 is not a substitute due to its 75 Ohm impedance specification.

Q: Are all substitute parts RoHS compliant? A: Yes. CT3353-06 is ROHS3 compliant, CT3369A-06 is ROHS3 compliant, and both Pasternack parts (PE7437-6 and PE7438-6) are RoHS compliant. All parts meet environmental compliance requirements.