CEP-1123 Equivalent & Substitute Parts

Part Overview

The CEP-1123 is an externally driven piezo buzzer transducer rated at 12V with a 24.6mm diameter form factor. This component is designed for applications requiring audible signaling with feedback capability. The part is currently in active production status with 804 units in stock. Substitute parts may be required due to inventory constraints, specific application requirements, or design optimization needs.

Substiute Parts

CEP-1123

CUI DevicesIn Stock: 819CEP-1123 Datasheet

Current PartRFQ

PT-2130FPQ

Mallory Sonalert Products Inc.In Stock: 2087PT-2130FPQ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PT-2130FPQ from Mallory Sonalert Products Inc. qualifies as a direct substitute based on the following critical parameters:

Matching Parameters:

• Driver Circuitry: Transducer, Externally Driven
• Input Type: DC
• Voltage - Rated: 12 V
• Technology: Piezo (with Feedback)
• Operating Mode: Single Tone
• Mounting Type: Through Hole
• Termination: PC Pins
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Allowable Variations:

• Diameter: 24.60mm (CEP-1123) vs. 24.00mm (PT-2130FPQ) — within acceptable mechanical tolerance for through-hole mounting
• Height: 10.95mm (CEP-1123) vs. 9.70mm (PT-2130FPQ) — both fit standard PCB clearance requirements
• Frequency: 3.2kHz (CEP-1123) vs. 3kHz (PT-2130FPQ) — both within audible range for signaling applications
• SPL: 74dB (CEP-1123) vs. 80dB (PT-2130FPQ) — PT-2130FPQ provides higher output
• Current: 7mA (CEP-1123) vs. 12mA (PT-2130FPQ) — PT-2130FPQ requires higher supply current
• Voltage Range: 3~28V (CEP-1123) vs. 1.5~30V (PT-2130FPQ) — PT-2130FPQ supports wider input range

Parameter Comparison

Engineering Selection Recommendations

Both CEP-1123 and PT-2130FPQ are active production components with equivalent regulatory compliance. Selection between these parts depends on application-specific requirements:

Select CEP-1123 when:

• Lower current consumption is critical (7mA vs. 12mA)
• Exact frequency match at 3.2kHz is required
• Compact height is preferred (10.95mm)

Select PT-2130FPQ when:

• Higher sound output is required (80dB vs. 74dB)
• Wider voltage range operation is needed (1.5~30V)
• Slightly smaller height is acceptable (9.70mm)
• Larger inventory availability is a factor (1982 units vs. 804 units)

Both parts meet ROHS3 and REACH compliance requirements and are suitable for through-hole PCB assembly with PC pin termination.

Frequently Asked Questions (FAQ)

Q: Can PT-2130FPQ be used as a direct replacement for CEP-1123 in existing designs?

A: Yes, PT-2130FPQ is mechanically and electrically compatible for through-hole mounting. The 0.5mm diameter increase (24.00mm vs. 24.60mm) and 1.25mm height reduction (9.70mm vs. 10.95mm) are within acceptable tolerances for standard PCB layouts. However, the increased current requirement (12mA vs. 7mA) must be verified against the driving circuit's current capacity.

Q: What are the key differences in electrical performance?

A: PT-2130FPQ provides 6dB higher sound output (80dB vs. 74dB) and operates across a wider voltage range (1.5~30V vs. 3~28V). The frequency difference (3kHz vs. 3.2kHz) is negligible for audible signaling applications. The primary trade-off is increased current consumption (12mA vs. 7mA).

Q: Are both parts suitable for the same operating temperature range?

A: CEP-1123 specifies -30°C to 85°C operation. PT-2130FPQ does not provide an operating temperature specification in the available data. Verify PT-2130FPQ temperature ratings with the manufacturer if operation outside standard industrial ranges is required.

Q: What packaging considerations apply to these parts?

A: CEP-1123 is supplied in Tray packaging, while PT-2130FPQ is supplied in Bulk packaging. Both use through-hole PC pin termination suitable for standard PCB assembly processes.