SC648ANP Equivalent & Substitute Parts

Part Overview

The SC648ANP is an internally driven piezo buzzer manufactured by Mallory Sonalert Products Inc., designed for panel mount applications with screw terminal and quick connect tab termination. This component operates across a 10–48V range with a 2.9kHz frequency and generates 80dB sound pressure level at 10V measured at 61cm. The part is currently active in production with 1,078 units in stock. Alternative models may be required due to inventory constraints, compliance requirements, or specific application needs for enhanced sound output or updated regulatory certifications.

Substiute Parts

SC648ANP

Mallory Sonalert Products Inc.In Stock: 1111SC648ANP Datasheet

Current PartRFQ

SC648ANPR

Mallory Sonalert Products Inc.In Stock: 1016SC648ANPR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SC648ANPR qualifies as a direct substitute for the SC648ANP based on the following critical parameters that remain constant across both parts:

• Manufacturer and series consistency (Mallory Sonalert Products Inc., SC series)
• Identical piezo technology and internal driver circuitry
• Matching voltage range (10–48V) and frequency (2.9kHz)
• Identical current supply specification (4–26mA)
• Matching mechanical dimensions (1.692" diameter, 1.330" height)
• Identical mounting type (panel mount) and termination style (screw terminal, quick connect tab)
• Identical operating temperature range (–30°C to 65°C)
• Matching operating mode and pulse duration parameters

The SC648ANPR differs in sound pressure level output (91dB @ 10V, 61cm versus 80dB) and input type specification (AC only versus AC/DC), representing a higher-output variant with narrower input compatibility.

Parameter Comparison

Engineering Selection Recommendations

Selection between SC648ANP and SC648ANPR depends on application-specific requirements and regulatory compliance mandates:

The SC648ANP remains the appropriate choice for applications requiring dual AC/DC input capability and where RoHS non-compliance is acceptable within the design framework. This part maintains active production status with adequate inventory availability (1,078 units).

The SC648ANPR is the preferred alternative for applications demanding ROHS3 compliance and higher acoustic output (91dB versus 80dB at 10V, 61cm). This variant is limited to AC input operation and carries active product status with 960 units in stock. Selection of this part requires confirmation that the application circuit supplies AC input exclusively.

Both parts share identical mechanical and electrical core specifications, ensuring direct functional interchangeability within the constraints of input type and compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can SC648ANPR replace SC648ANP in all applications?

A: Direct replacement is possible only when the application circuit supplies AC input exclusively. The SC648ANP accepts both AC and DC inputs, while SC648ANPR accepts AC input only. Verify circuit input type before substitution.

Q: What is the primary difference between these two parts?

A: The SC648ANPR produces 91dB sound pressure level compared to the SC648ANP's 80dB output at identical measurement conditions (10V, 61cm). Additionally, SC648ANPR is ROHS3 compliant while SC648ANP is RoHS non-compliant. Input type differs: SC648ANP supports AC/DC while SC648ANPR supports AC only.

Q: Are the physical dimensions identical?

A: Yes. Both parts share identical panel mount dimensions (1.692" diameter, 1.330" maximum seated height) and termination configuration (screw terminal with 0.250" quick connect tab), ensuring mechanical interchangeability.

Q: Do these parts operate at the same frequency and voltage range?

A: Yes. Both operate at 2.9kHz frequency across the 10–48V voltage range with identical current supply specifications (4–26mA).

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements and acoustic output needs. For designs requiring ROHS3 compliance and higher sound output, specify SC648ANPR. For applications where RoHS non-compliance is acceptable and AC/DC input flexibility is required, SC648ANP remains valid.

Q: Are there any temperature or operating mode differences?

A: No. Both parts operate identically across the –30°C to 65°C temperature range with matching pulse and fast operating modes at 2–10 PPS duration.