CEP-1160 Equivalent & Substitute Parts

Part Overview

The CEP-1160 is an externally driven piezo buzzer transducer rated at 10V with a 14mm through-hole form factor. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The CEP-1160 delivers 76dB sound pressure level at 10V with 10mA supply current and is designed for applications requiring compact, through-hole mounted audio signaling.

Key Parameters

Parameter	Value
Manufacturer Part Number	CEP-1160
Manufacturer	CUI Devices
Driver Circuitry	Transducer, Externally Driven
Technology	Piezo
Voltage - Rated	10V
Voltage Range (Max)	20V
Current - Supply	10mA
Sound Pressure Level	76dB @ 10V, 10cm
Operating Mode	Single Tone
Mounting Type	Through Hole
Termination	PC Pins
Size / Dimension	0.551" Dia (14.00mm)
Height - Seated (Max)	0.315" (8.00mm)
Operating Temperature	-20°C ~ 60°C
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the CEP-1160 is determined by the following critical parameters: driver circuitry type (externally driven transducer), technology (piezo), mounting method (through hole with PC pins), and electrical compatibility within the specified voltage and current ranges.

The substitute parts identified are:

CPE-164 (CUI Devices): Shares identical driver circuitry, technology, mounting type, and termination. Operates at the same rated voltage (10V) with matching current supply (10mA). Dimensional variance is minimal (13.7mm vs. 14.0mm diameter). Product status is active, providing long-term availability. Operating temperature range extends to 70°C.

PT-1240PQ (Mallory Sonalert Products Inc.): Operates at a different rated voltage (5V vs. 10V) with reduced current supply (2mA vs. 10mA). Shares externally driven piezo transducer architecture, through-hole mounting, and PC pin termination. Voltage range compatibility (1–20V) permits operation at 10V, though this exceeds the rated specification. Dimensional similarity (13.8mm diameter) supports mechanical interchangeability. Product status is active.

Parameter Comparison

Parameter	CEP-1160	CPE-164	PT-1240PQ
Manufacturer	CUI Devices	CUI Devices	Mallory Sonalert Products Inc.
Driver Circuitry	Transducer, Externally Driven	Transducer, Externally Driven	Transducer, Externally Driven
Technology	Piezo	Piezo	Piezo
Voltage - Rated	10V	10V	5V
Voltage Range (Max)	20V	20V	20V
Current - Supply	10mA	10mA	2mA
Sound Pressure Level	76dB @ 10V, 10cm	80dB @ 10V, 10cm	80dB @ 5V, 10cm
Operating Mode	Single Tone	Single Tone	Single Tone
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	PC Pins	PC Pins	PC Pins
Size / Dimension	0.551" Dia (14.00mm)	0.539" Dia (13.70mm)	0.543" Dia (13.80mm)
Height - Seated (Max)	0.315" (8.00mm)	0.319" (8.10mm)	0.335" (8.50mm)
Operating Temperature	-20°C ~ 60°C	-20°C ~ 70°C	-20°C ~ 70°C
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

CPE-164 is the primary substitute for CEP-1160 applications. Both components share identical electrical ratings (10V, 10mA), driver architecture, and mounting specifications. The CPE-164 provides superior sound output (80dB vs. 76dB) and extended operating temperature range (-20°C to 70°C). Active product status ensures long-term availability and supply chain stability. Dimensional differences are negligible for through-hole PCB applications.

PT-1240PQ serves as an alternative substitute where reduced power consumption is acceptable. The 5V rated voltage and 2mA current supply represent a significant departure from CEP-1160 specifications. Operation at 10V is within the PT-1240PQ voltage range but exceeds its rated specification. This substitution is suitable only for applications where the circuit can be redesigned to operate at the PT-1240PQ rated voltage or where overvoltage operation is explicitly validated. Active product status and ROHS3 compliance support procurement viability.

Frequently Asked Questions (FAQ)

Q: Can CPE-164 directly replace CEP-1160 without circuit modification?

A: Yes. The CPE-164 shares identical voltage rating (10V), current supply (10mA), driver circuitry, mounting type, and termination. Dimensional variance (13.7mm vs. 14.0mm diameter) is within typical PCB through-hole tolerance. No circuit redesign is required.

Q: What are the limitations of using PT-1240PQ as a substitute?

A: The PT-1240PQ is rated at 5V with 2mA supply current, differing from the CEP-1160 specification of 10V and 10mA. While the PT-1240PQ voltage range extends to 20V, operation at 10V exceeds its rated specification. This substitution requires circuit redesign to operate at 5V or explicit validation of overvoltage operation.

Q: Are there packaging differences between these parts?

A: CEP-1160 is supplied in standard packaging. CPE-164 is packaged in trays. PT-1240PQ is supplied in bulk. All three components use through-hole PC pin termination suitable for standard PCB assembly.

Q: How do sound pressure levels compare?

A: CPE-164 and PT-1240PQ both deliver 80dB at their respective rated voltages (10V and 5V, 10cm distance). CEP-1160 delivers 76dB at 10V. CPE-164 provides 4dB higher output at equivalent voltage.

Q: What is the impact of extended operating temperature range?

A: CPE-164 and PT-1240PQ both support -20°C to 70°C operation, extending 10°C beyond the CEP-1160 range (-20°C to 60°C). This provides additional thermal margin for applications in elevated ambient conditions.

Q: Are all three parts RoHS compliant?

A: Yes. CEP-1160 is RoHS Compliant. CPE-164 and PT-1240PQ are ROHS3 Compliant, representing current regulatory compliance standards.

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