RF Power Divider 4J0266 — Equivalent & Substitute Parts

Part Overview

The 4J0266 is an RF power divider module designed for 2 GHz to 4 GHz frequency applications, manufactured by TTM Technologies, Inc. This component provides signal distribution with a minimum isolation of 20 dB and an insertion loss of 0.4 dB. The part is currently obsolete, making identification of functionally equivalent alternatives necessary for system maintenance, repair, and redesign applications where continued operation or component replacement is required.

Substiute Parts

4J0266

TTM Technologies, Inc.In Stock: 7154J0266 Datasheet

Current PartRFQ

PWD-5512-02-SMA-79

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 1048PWD-5512-02-SMA-79 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4J0266 is determined by electrical performance parameters and physical form factor compatibility. The critical parameters for equivalent functionality are:

• Frequency range: 2 GHz to 4 GHz operation
• Insertion loss: 0.4 dB maximum
• Isolation specification: Minimum 20 dB
• Package configuration: Module form factor
• Connector type and physical dimensions: Compatible with existing mounting and interface requirements

The PWD-5512-02-SMA-79 meets all electrical performance criteria and maintains module packaging, establishing it as a functional equivalent for the obsolete 4J0266.

Parameter Comparison

Engineering Selection Recommendations

The PWD-5512-02-SMA-79 is the manufacturer-recommended substitute for the obsolete 4J0266. Both components share identical electrical specifications across frequency range, insertion loss, and isolation parameters. The PWD-5512-02-SMA-79 maintains active product status, ensuring availability and ongoing manufacturer support.

Physical dimensions differ slightly between the two modules. The 4J0266 measures 3.000" L × 1.450" W × 0.370" H, while the PWD-5512-02-SMA-79 measures 3.000" L × 2.000" W. Length and height remain consistent; width increases by 0.550". Mechanical integration must account for this dimensional change in existing enclosures or mounting structures.

The PWD-5512-02-SMA-79 is RoHS non-compliant, whereas RoHS status for the 4J0266 is not specified. Applications subject to RoHS requirements must evaluate this compliance difference against system-level requirements.

Both components carry identical ECCN classification (EAR99) and share the same moisture sensitivity level (MSL 1), eliminating concerns regarding export control or handling procedures.

Frequently Asked Questions (FAQ)

Q: Can the PWD-5512-02-SMA-79 directly replace the 4J0266 in existing designs?

A: Electrical performance is identical across all specified parameters. Physical dimensions differ in width (1.450" versus 2.000"), requiring verification that the larger module fits within existing mechanical constraints, mounting brackets, and enclosure space.

Q: What is the significance of the frequency range 2 GHz to 4 GHz?

A: This range defines the operational bandwidth of the RF power divider. Both the 4J0266 and PWD-5512-02-SMA-79 are limited to this frequency band. Applications requiring operation outside this range require alternative components.

Q: Why is insertion loss specification critical?

A: Insertion loss of 0.4 dB represents signal attenuation through the divider. This parameter directly affects system gain and noise figure. The matching insertion loss between components ensures equivalent signal distribution performance.

Q: What does 20 dB minimum isolation mean?

A: Isolation specifies the degree to which output ports are decoupled from one another. A 20 dB minimum isolation ensures that signals present at one output port are attenuated by at least 20 dB before appearing at other output ports, maintaining signal integrity in multi-channel applications.

Q: Are there connector type differences between the 4J0266 and PWD-5512-02-SMA-79?

A: The PWD-5512-02-SMA-79 designation includes "SMA" in the part number, indicating SMA connector configuration. Connector compatibility must be verified against the original 4J0266 design to ensure proper interface integration.

Q: What does MSL 1 (Unlimited) indicate?

A: Moisture Sensitivity Level 1 with unlimited shelf life indicates the component has minimal moisture absorption risk and does not require special dry-pack storage or baking procedures prior to assembly. Both components share this classification.

Q: Is the PWD-5512-02-SMA-79 available in the same packaging format?

A: Both components are supplied as modules. The PWD-5512-02-SMA-79 is available in bulk packaging, whereas the 4J0266 packaging format is not specified. Packaging format may affect procurement quantities and handling procedures.