MMA1250D Equivalent & Substitute Parts

Part Overview

The MMA1250D is a Z-axis analog accelerometer manufactured by NXP USA Inc., designed for motion sensing applications requiring ±5g acceleration measurement with 50Hz bandwidth. This component operates on a 4.75V to 5.25V supply and delivers analog voltage output with 400mV/g sensitivity. The MMA1250D is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

MMA1250D

NXP USA Inc.In Stock: 1363MMA1250D Datasheet

Current PartRFQ

MMA1250KEG

NXP SemiconductorsIn Stock: 895MMA1250KEG Datasheet

Parametric EquivalentRFQ

MMA1250KEG

NXP SemiconductorsIn Stock: 895MMA1250KEG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMA1250D is determined by strict equivalence across the following critical parameters:

• Acceleration Range: ±5g
• Sensitivity: 400 mV/g
• Bandwidth: 50 Hz
• Output Type: Analog Voltage
• Voltage Supply: 4.75V ~ 5.25V
• Operating Temperature Range: -40°C ~ 105°C
• Package / Case: 16-SOIC (0.295", 7.50mm Width)
• Axis: Z
• Mounting Type: Surface Mount

The MMA1250KEG qualifies as a parametric equivalent substitute, maintaining identical electrical specifications and mechanical compatibility while offering improved compliance status and automotive-grade qualification.

Parameter Comparison

Engineering Selection Recommendations

The MMA1250KEG serves as the direct parametric equivalent for the obsolete MMA1250D. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and functional interchangeability in existing circuit designs.

The MMA1250KEG offers two significant advantages over the MMA1250D:

1. Compliance Status: The MMA1250KEG is ROHS3 compliant, whereas the MMA1250D is RoHS non-compliant. This distinction is critical for applications subject to environmental regulations and supply chain requirements.

2. Automotive Qualification: The MMA1250KEG carries AEC-Q100 qualification and automotive-grade designation, providing additional reliability assurance for automotive and mission-critical applications.

Both components are classified as obsolete, indicating limited future availability. Selection between these equivalents should prioritize compliance requirements and application-specific qualification needs.

Frequently Asked Questions (FAQ)

Q: Can the MMA1250KEG replace the MMA1250D in existing designs?

A: Yes. The MMA1250KEG is a parametric equivalent with identical acceleration range (±5g), sensitivity (400 mV/g), bandwidth (50 Hz), supply voltage (4.75V ~ 5.25V), operating temperature range (-40°C ~ 105°C), and 16-SOIC package. Pin-for-pin compatibility is maintained.

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

A: The MMA1250KEG is ROHS3 compliant and carries AEC-Q100 automotive qualification, while the MMA1250D is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences?

A: Both components use the 16-SOIC (0.295", 7.50mm Width) package. The MMA1250KEG is supplied in tube packaging, while packaging information for the MMA1250D is not specified.

Q: Why is the MMA1250D classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed.

Q: Which part should be selected for new designs?

A: For new designs, the MMA1250KEG is the appropriate choice, as it provides equivalent functionality with improved compliance status and automotive-grade qualification.