SCA1020-D14 Equivalent & Substitute Parts

Part Overview

The SCA1020-D14 is a dual-axis accelerometer manufactured by Murata Electronics, designed for motion sensing applications requiring Y and Z axis acceleration measurement at ±1.7g range with analog and SPI output options. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement planning. The 12-SMD surface mount package and 50Hz bandwidth specification define its operational envelope for legacy and new designs requiring comparable performance characteristics.

Substiute Parts

SCA1020-D14

Murata ElectronicsIn Stock: 742SCA1020-D14 Datasheet

Current PartRFQ

SCA3300-D01-1

Murata ElectronicsIn Stock: 2162SCA3300-D01-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCA1020-D14 is determined by the following critical parameters:

• Acceleration Range Compatibility: The SCA1020-D14 operates at ±1.7g. Substitute parts must support this range or provide selectable ranges that include ±1.7g operation.
• Output Interface: The original part supports both analog and SPI outputs. Substitute parts must provide at least one compatible output type.
• Measurement Axes: The SCA1020-D14 measures Y and Z axes. Substitute parts with X, Y, Z tri-axial capability remain compatible as they encompass the required axes.
• Supply Voltage: The original part requires 4.75V ~ 5.25V. Substitute parts with different voltage requirements necessitate circuit redesign.
• Mounting and Package: Surface mount technology and physical footprint compatibility affect PCB integration feasibility.
• Product Status and Compliance: Active product status with current certifications (RoHS, REACH) ensures long-term availability and regulatory compliance.

The SCA3300-D01-1 qualifies as a substitute based on its selectable acceleration range capability (±1.5g, 3g, 6g includes ±1.7g operation envelope), SPI digital output compatibility, tri-axial measurement (encompassing Y and Z requirements), and active product status with full compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Supply Voltage Redesign

The SCA3300-D01-1 operates at 3V ~ 3.6V, compared to the SCA1020-D14's 4.75V ~ 5.25V specification. This voltage differential requires power supply circuit modification and is the primary design constraint for substitution. Systems currently powered at 5V must implement voltage regulation or redesign power distribution to accommodate the lower voltage requirement of the substitute part.

Acceleration Range Selection

The SCA3300-D01-1 provides selectable acceleration ranges (±1.5g, 3g, 6g). For applications requiring ±1.7g measurement, the ±1.5g range setting is not sufficient; the ±3g or ±6g range must be selected, which affects measurement resolution and sensitivity (1350 LSB/g at ±6g versus 5400 LSB/g at ±1.5g).

Output Interface Compatibility

Both parts support SPI digital output, enabling direct interface compatibility at the communication protocol level. Applications relying exclusively on analog output from the SCA1020-D14 require firmware or hardware modification to process SPI digital data from the substitute.

Product Status and Availability

The SCA3300-D01-1 is actively manufactured with 2100 units in stock, ensuring long-term procurement viability. The SCA1020-D14's obsolete status limits future availability to existing inventory (653 units reported). For new designs or long-term production, the SCA3300-D01-1 is the recommended path forward.

Compliance and Regulatory

The SCA3300-D01-1 carries RoHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The SCA1020-D14's obsolete classification may present compliance challenges for new product certifications or market entry in regions with strict RoHS enforcement.

Frequently Asked Questions (FAQ)

Q: Can the SCA3300-D01-1 directly replace the SCA1020-D14 without circuit modifications?

A: No. The SCA3300-D01-1 requires a different supply voltage (3V ~ 3.6V versus 4.75V ~ 5.25V), necessitating power supply circuit redesign. Additionally, the output interface differs (SPI digital versus analog/SPI hybrid), requiring firmware adaptation for analog-dependent applications.

Q: What acceleration range should be selected on the SCA3300-D01-1 to match the SCA1020-D14's ±1.7g specification?

A: The SCA3300-D01-1's ±1.5g range is insufficient for ±1.7g measurement. The ±3g or ±6g selectable range must be used. The ±3g range provides better resolution (2700 LSB/g) compared to ±6g (1350 LSB/g) while accommodating the ±1.7g requirement.

Q: Are the physical packages compatible for PCB layout?

A: The SCA1020-D14 uses a 12-SMD Gull Wing package, while the SCA3300-D01-1 uses a nonstandard package. Physical footprint compatibility cannot be confirmed without detailed package drawings. PCB layout redesign may be necessary.

Q: Does the SCA3300-D01-1 include the temperature sensor feature of the SCA1020-D14?

A: The provided specifications for the SCA3300-D01-1 do not document a temperature sensor feature. If temperature measurement is required, this functionality must be verified against the complete datasheet or implemented through alternative components.

Q: What is the impact of the SCA3300-D01-1's tri-axial measurement (X, Y, Z) compared to the SCA1020-D14's dual-axis (Y, Z)?

A: The additional X-axis measurement capability does not negatively impact substitution. Applications requiring only Y and Z axis data can ignore the X-axis output. The tri-axial design provides flexibility for future enhancements or system upgrades.

Q: Is the SCA3300-D01-1 suitable for designs requiring the 50Hz bandwidth of the SCA1020-D14?

A: The SCA3300-D01-1 specifications do not document bandwidth information. Bandwidth compatibility must be verified against the complete datasheet. If 50Hz bandwidth is a critical requirement, this parameter must be confirmed before design implementation.

Q: What inventory considerations apply to substitution?

A: The SCA1020-D14 has 653 units in stock (obsolete status). The SCA3300-D01-1 has 2100 units available (active product). For production quantities exceeding available SCA1020-D14 inventory, the SCA3300-D01-1 is the only viable long-term source.