CEP-1162 Equivalent & Substitute Parts

Part Overview

The CEP-1162 is an externally driven piezo buzzer transducer manufactured by CUI Devices, rated for 10V operation with a sound pressure level of 80dB @ 10V, 10cm. This through-hole component is designed for applications requiring audible signaling in industrial and consumer electronics. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameter ranges for this buzzer category.

Substiute Parts

CEP-1162

CUI DevicesIn Stock: 1895CEP-1162 Datasheet

Current PartRFQ

PT-1240PQ

Mallory Sonalert Products Inc.In Stock: 1689PT-1240PQ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PT-1240PQ from Mallory Sonalert Products Inc. is identified as a substitute based on the following substitution criteria:

Matching Parameters:

• Driver Circuitry: Transducer, Externally Driven
• Technology: Piezo
• Sound Pressure Level: 80dB @ 10cm (equivalent acoustic output)
• Mounting Type: Through Hole
• Termination: PC Pins
• Input Type: Peak-Peak Signal
• Operating Mode: Single Tone
• RoHS3 Compliance: Both parts meet ROHS3 requirements
• REACH Status: Both parts are REACH Unaffected

Allowable Parameter Variations:

• Voltage - Rated: 5V (PT-1240PQ) vs 10V (CEP-1162) — within the 20V maximum range for both parts
• Current - Supply: 2mA (PT-1240PQ) vs 7mA (CEP-1162) — lower current consumption acceptable for equivalent SPL
• Size / Dimension: 0.543" Dia (13.80mm) vs 0.551" Dia (14.00mm) — within mechanical tolerance for through-hole mounting
• Height - Seated: 0.335" (8.50mm) vs 0.295" (7.50mm) — acceptable height variation for PCB layout
• Operating Temperature: -20°C ~ 70°C (PT-1240PQ) vs -20°C ~ 85°C (CEP-1162) — substitute suitable for standard industrial range

Parameter Comparison

Engineering Selection Recommendations

Both the CEP-1162 and PT-1240PQ maintain Active product status with full regulatory compliance. Selection between these parts depends on circuit voltage requirements and thermal operating range constraints.

The CEP-1162 is specified for 10V rated operation with extended temperature range to 85°C, suitable for applications requiring higher voltage drive signals and broader thermal performance margins.

The PT-1240PQ operates at 5V rated voltage with lower current consumption (2mA vs 7mA), making it suitable for battery-powered or low-power applications. The operating temperature range extends to 70°C, which covers standard industrial and consumer electronics environments.

Both parts deliver equivalent 80dB sound pressure level at their respective rated voltages and maintain identical through-hole PC pin termination for direct PCB mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can PT-1240PQ replace CEP-1162 in a 10V circuit?

A: The PT-1240PQ is rated for 5V operation but has a maximum voltage range of 1–20V. While it can tolerate 10V, the part is optimized for 5V drive. Use PT-1240PQ only if circuit design permits operation at the substitute's rated voltage or if acoustic output at higher voltage is acceptable for the application.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts use through-hole PC pin termination with similar diameters (14.00mm vs 13.80mm). The PT-1240PQ has a slightly greater seated height (8.50mm vs 7.50mm). Verify PCB clearance and component spacing before substitution.

Q: What is the frequency difference between these parts?

A: The CEP-1162 does not specify a frequency parameter. The PT-1240PQ operates at 4.1kHz. Frequency specification is provided only for the substitute part.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CEP-1162 and PT-1240PQ are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes.

Q: Which part should I use for high-temperature applications?

A: The CEP-1162 supports operating temperatures to 85°C, while PT-1240PQ is rated to 70°C. For applications exceeding 70°C, the CEP-1162 is the appropriate selection.