Murata Electronics 7BB-20-6 Equivalent & Substitute Parts

Part Overview

The Murata Electronics 7BB-20-6 is a standard buzzer element operating at 6.3 kHz with a 20mm diameter form factor and 350 Ohms impedance. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for applications requiring continued supply or for new designs seeking compatible alternatives with current product availability and active manufacturer support.

Substiute Parts

7BB-20-6

Murata ElectronicsIn Stock: 199847BB-20-6 Datasheet

Current PartRFQ

CEB-20FD64

CUI DevicesIn Stock: 8518CEB-20FD64 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7BB-20-6 is determined by the following critical parameters:

• Physical Compatibility: Identical 20mm diameter form factor ensures mechanical fit in existing designs
• Frequency Range: Operating frequency within acceptable tolerance of 6.3 kHz (substitute operates at 6.4 kHz, representing a 1.6% deviation)
• Impedance Compatibility: Impedance values within acceptable range for circuit integration (350 Ohms to 400 Ohms)
• Capacitance Specification: Matching capacitance at 1kHz frequency (10000pF @ 1kHz for both parts)
• Regulatory Compliance: ROHS3 compliance maintained across substitution

The CEB-20FD64 from CUI Devices meets these substitution criteria while offering active product status and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The CEB-20FD64 is the designated substitute for the 7BB-20-6 based on the following engineering criteria:

• Product Status Alignment: The CEB-20FD64 maintains Active product status, ensuring continued availability and manufacturer support, whereas the 7BB-20-6 is classified as Not For New Designs
• Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying environmental and regulatory requirements
• Physical Compatibility: Identical 20mm diameter packaging ensures direct mechanical substitution in existing mechanical assemblies
• Electrical Compatibility: Frequency deviation of 1.6% (6.3 kHz to 6.4 kHz) and impedance variation of 50 Ohms fall within acceptable tolerances for buzzer element applications
• Certification Alignment: Both parts carry identical ECCN (EAR99) and HTSUS (8531.80.9041) classifications

Frequently Asked Questions (FAQ)

Q: Can the CEB-20FD64 directly replace the 7BB-20-6 in existing applications?

A: The CEB-20FD64 is mechanically and electrically compatible for substitution. Both parts share identical 20mm diameter form factors, matching capacitance specifications (10000pF @ 1kHz), and ROHS3 compliance. The frequency difference of 1.6% and impedance variation of 50 Ohms are within acceptable tolerances for standard buzzer element applications.

Q: What is the primary difference between the 7BB-20-6 and CEB-20FD64?

A: The 7BB-20-6 is a standard buzzer element with Not For New Designs status, while the CEB-20FD64 is a feedback buzzer element with Active product status. The CEB-20FD64 includes specified voltage rating (30V p-p) and operating temperature range (-20°C ~ 70°C), and features wire lead termination compared to the 7BB-20-6 which has no specified termination.

Q: Are there packaging differences between these parts?

A: Yes. The 7BB-20-6 is supplied in Bulk packaging, while the CEB-20FD64 is supplied in Bag packaging. Both maintain identical physical dimensions (0.787" Dia / 20.00mm).

Q: Do both parts meet the same regulatory requirements?

A: Both the 7BB-20-6 and CEB-20FD64 are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8531.80.9041) classifications. The CEB-20FD64 is REACH Unaffected, while the 7BB-20-6 is REACH Affected.