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SC628ADP Equivalent & Substitute Parts
Part Overview
The SC628ADP 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 6–28V range at 2kHz frequency, delivering 60dB sound pressure level at 7.5V over a 61cm distance. The part is currently active in production and maintains 993 units in new original stock inventory.
Finding equivalent and substitute parts becomes necessary when addressing supply chain constraints, design revisions requiring updated compliance standards, or inventory optimization across manufacturing batches.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Mallory Sonalert Products Inc. |
| Series | SC |
| Technology | Piezo |
| Driver Circuitry | Indicator, Internally Driven |
| Voltage Range | 6–28V |
| Frequency | 2kHz |
| Current Supply | 6–20mA |
| Sound Pressure Level | 60dB @ 7.5V, 61cm |
| Operating Mode | Pulse, Fast |
| Duration | 2–10 PPS |
| Mounting Type | Panel Mount |
| Termination | Screw Terminal, Quick Connect Tab – 0.250" (6.35mm) |
| Size / Dimension | 1.687" Dia (42.85mm) |
| Height – Seated (Max) | 1.399" (35.54mm) |
| Operating Temperature | –30°C to 65°C |
| Input Type | AC, DC |
Substitute Part Grouping Explanation
The SC628ADPR qualifies as a direct substitute for the SC628ADP based on identical electrical and mechanical parameters. Both parts share the same manufacturer (Mallory Sonalert Products Inc.), series designation (SC), and all critical functional specifications including voltage range (6–28V), frequency (2kHz), current supply (6–20mA), sound pressure level (60dB @ 7.5V, 61cm), mounting configuration (panel mount), termination style (screw terminal with 0.250" quick connect tab), and physical dimensions (1.687" diameter, 1.399" maximum seated height).
The substitution is valid across all electrical operating parameters: input type (AC/DC), operating mode (pulse, fast), duration (2–10 PPS), and temperature range (–30°C to 65°C). Mechanical compatibility is confirmed through identical mounting type, port location (top), and termination specifications.
Parameter Comparison
| Parameter | SC628ADP | SC628ADPR |
|---|---|---|
| Manufacturer | Mallory Sonalert Products Inc. | Mallory Sonalert Products Inc. |
| Series | SC | SC |
| Technology | Piezo | Piezo |
| Driver Circuitry | Indicator, Internally Driven | Indicator, Internally Driven |
| Voltage Range | 6–28V | 6–28V |
| Frequency | 2kHz | 2kHz |
| Current Supply | 6–20mA | 6–20mA |
| Sound Pressure Level | 60dB @ 7.5V, 61cm | 60dB @ 7.5V, 61cm |
| Operating Mode | Pulse, Fast | Pulse, Fast |
| Duration | 2–10 PPS | 2–10 PPS |
| Mounting Type | Panel Mount | Panel Mount |
| Termination | Screw Terminal, Quick Connect Tab – 0.250" (6.35mm) | Screw Terminal, Quick Connect Tab – 0.250" (6.35mm) |
| Size / Dimension | 1.687" Dia (42.85mm) | 1.687" Dia (42.85mm) |
| Height – Seated (Max) | 1.399" (35.54mm) | 1.399" (35.54mm) |
| Operating Temperature | –30°C to 65°C | –30°C to 65°C |
| Input Type | AC, DC | AC, DC |
| Product Status | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8531.80.9041 | 8531.80.9041 |
| Inventory | 993 Pcs New Original In Stock | 1098 Pcs New Original In Stock |
Engineering Selection Recommendations
Both SC628ADP and SC628ADPR are active production parts with identical electrical and mechanical specifications. The primary distinction lies in regulatory compliance status: SC628ADPR carries ROHS3 compliance, while SC628ADP is RoHS non-compliant. Both parts maintain REACH Unaffected status and share identical ECCN (EAR99) and HTSUS (8531.80.9041) classifications.
Selection between these parts should be based on regulatory requirements applicable to the end application. Applications requiring RoHS3 compliance mandate use of SC628ADPR. Applications without RoHS compliance constraints may utilize either part. Both parts are currently in active production with adequate inventory availability (SC628ADP: 993 units; SC628ADPR: 1098 units).
Frequently Asked Questions (FAQ)
Q: Are SC628ADP and SC628ADPR electrically interchangeable? A: Yes. Both parts operate identically across all electrical parameters: 6–28V input range, 2kHz frequency, 6–20mA current supply, 60dB sound pressure level, and AC/DC input capability.
Q: Are these parts mechanically interchangeable? A: Yes. Both parts share identical physical dimensions (1.687" diameter, 1.399" maximum seated height), mounting type (panel mount), and termination configuration (screw terminal with 0.250" quick connect tab).
Q: What is the key difference between SC628ADP and SC628ADPR? A: The SC628ADPR is ROHS3 compliant, while the SC628ADP is RoHS non-compliant. All other specifications are identical.
Q: Which part should I select for new designs? A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance, specify SC628ADPR. For applications without RoHS compliance mandates, either part is acceptable based on availability and supply chain considerations.
Q: Are there any temperature or operating mode differences? A: No. Both parts operate across the identical temperature range (–30°C to 65°C) and support the same operating modes (pulse, fast) with identical duration specifications (2–10 PPS).
Q: Can I use these parts in AC or DC circuits? A: Yes. Both SC628ADP and SC628ADPR accept AC and DC input across the 6–28V range.
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