CB30 RF Antenna Equivalent & Substitute Parts Reference

Part Overview

The CB30 is a 33MHz whip straight RF antenna manufactured by TE Connectivity Laird, designed for VHF frequency applications in the 30MHz to 35MHz band. This component features an NMO base mount termination and delivers 0dB gain with a VSWR of 2. The product is currently classified as obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and legacy equipment support.

Substiute Parts

CB30

TE Connectivity LairdIn Stock: 1003CB30 Datasheet

Current PartRFQ

C30

XP PowerIn Stock: 959C30 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Based on the provided input data, the C30 part number is listed as a substitute for the CB30. However, a critical incompatibility exists between these two components that prevents valid substitution:

CB30 Specifications:

• RF antenna component
• VHF frequency operation (30MHz – 35MHz)
• Antenna termination: NMO base mount
• Antenna type: Whip, straight
• RF transmission/reception application

C30 Specifications:

• DC-DC converter module
• High voltage non-isolated power conversion
• Input voltage: 11.5V – 16V
• Output voltage: 3000V
• Power supply application

These components operate in fundamentally different functional domains. The CB30 is an RF antenna for signal transmission and reception, while the C30 is a power conversion module. No electrical or mechanical parameters align between these parts, and substitution would result in system failure.

Parameter Comparison

Engineering Selection Recommendations

The C30 cannot serve as a substitute for the CB30 under any circumstances. These components belong to entirely different product categories with no overlapping electrical or mechanical functionality.

For CB30 replacement, the following approach is required:

Direct Equivalent Search: Identify RF antenna components from TE Connectivity Laird or equivalent manufacturers that match the following critical parameters:

• Frequency band: 30MHz – 35MHz
• Antenna type: Whip, straight configuration
• Termination: NMO base mount
• Gain: 0dB nominal
• VSWR: 2 or better

Compliance Verification: Ensure replacement antenna meets RoHS compliance requirements and maintains MSL Level 1 rating for storage and handling.

Physical Compatibility: Confirm mounting interface compatibility with existing base mount hardware and verify maximum height specification of 52.500" (133.35cm) fits system constraints.

Frequently Asked Questions (FAQ)

Q: Can the C30 DC-DC converter replace the CB30 antenna?

A: No. The C30 is a power conversion module designed for DC voltage transformation. The CB30 is an RF antenna for signal transmission and reception. These components serve completely different functions and are electrically and mechanically incompatible. Installation of a C30 in place of a CB30 will result in system failure.

Q: Why is the C30 listed as a substitute in the provided data?

A: The data listing appears to contain a classification error. The C30 and CB30 share only compliance ratings (RoHS and MSL) but no functional or electrical parameters. This listing should not be used for component selection decisions.

Q: What parameters must an antenna substitute match to the CB30?

A: A valid CB30 substitute must match: frequency range (30MHz – 35MHz), antenna type (whip, straight), termination type (NMO), mounting type (base mount), and impedance characteristics (VSWR 2). Gain specification (0dB) should also be verified.

Q: Is the CB30 still available for direct purchase?

A: The CB30 is classified as obsolete. However, 931 pieces are listed as in-stock inventory. For long-term system support, identification of active equivalent antenna models from TE Connectivity Laird or alternative manufacturers is recommended.

Q: What compliance certifications should a CB30 replacement maintain?

A: Replacement antennas should maintain RoHS compliance and MSL Level 1 rating to ensure compatibility with modern manufacturing and storage requirements.