MCS1802GS-30-P Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The MCS1802GS-30-P is a 3.3V linear Hall-effect current sensor manufactured by Monolithic Power Systems Inc., designed for bidirectional AC/DC current measurement applications. This surface-mount device operates in the 8-SOIC package and provides ratiometric voltage output with ±30A sensing capability. The part is currently active in production and widely available in inventory.

Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or equivalent performance specifications across the same product family.

Key Parameters

Parameter	Value
Sensor Type	Hall Effect
Current Sensing Range	±30A
Number of Channels	1
Output Type	Ratiometric, Voltage
Sensitivity	44mV/A
Supply Voltage	3V ~ 3.6V
Frequency Response	100kHz
Linearity	±0.5%
Accuracy	±2.5%
Response Time	5µs
Operating Temperature Range	-40°C ~ 125°C (TJ)
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Polarization	Bidirectional
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

The MCS1802GS-30-P and its identified substitute share identical electrical and mechanical specifications across all critical parameters. Substitution is valid based on the following matching criteria:

Electrical Parameters:

Current sensing range: ±30A
Supply voltage: 3V ~ 3.6V
Output configuration: Ratiometric voltage
Sensitivity: 44mV/A
Frequency response: 100kHz
Linearity: ±0.5%
Accuracy: ±2.5%
Response time: 5µs
Operating temperature: -40°C ~ 125°C

Mechanical Parameters:

Package: 8-SOIC (0.154", 3.90mm Width)
Mounting: Surface Mount
Polarization: Bidirectional

Compliance & Environmental:

RoHS3 Compliant
Moisture Sensitivity Level 1
REACH Unaffected
ECCN: EAR99

The substitute part differs only in packaging designation (Tape & Reel specification), which does not affect functional performance or circuit compatibility.

Parameter Comparison

Parameter	MCS1802GS-30-P	MCS1802GS-30-Z	Match
Manufacturer	Monolithic Power Systems Inc.	Monolithic Power Systems Inc.	✓
Sensor Type	Hall Effect	Hall Effect	✓
Current Sensing	±30A	±30A	✓
Number of Channels	1	1	✓
Output	Ratiometric, Voltage	Ratiometric, Voltage	✓
Sensitivity	44mV/A	44mV/A	✓
Frequency	100kHz	100kHz	✓
Linearity	±0.5%	±0.5%	✓
Accuracy	±2.5%	±2.5%	✓
Supply Voltage	3V ~ 3.6V	3V ~ 3.6V	✓
Response Time	5µs	5µs	✓
Supply Current (Max)	10.5mA	10.5mA	✓
Operating Temperature	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	✓
Polarization	Bidirectional	Bidirectional	✓
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓

Engineering Selection Recommendations

Both the MCS1802GS-30-P and MCS1802GS-30-Z are active production parts from Monolithic Power Systems Inc. with full ROHS3 compliance and REACH unaffected status. Selection between these parts is based on availability and supply chain requirements rather than functional or performance differences.

MCS1802GS-30-P is suitable for applications where standard tape and reel packaging meets procurement specifications and inventory availability is adequate.

MCS1802GS-30-Z serves as a direct functional equivalent when supply constraints on the primary part number necessitate alternative sourcing. Both parts maintain identical electrical performance, thermal characteristics, and environmental compliance certifications.

No design modifications, circuit alterations, or performance trade-offs are required when substituting between these part numbers. Pin configuration, package footprint, and signal characteristics remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can MCS1802GS-30-Z be used as a direct replacement for MCS1802GS-30-P in existing designs?

A: Yes. Both parts are electrically and mechanically identical. No circuit modifications, PCB layout changes, or firmware adjustments are required. The parts are pin-for-pin compatible with identical package dimensions and mounting requirements.

Q: What is the difference between MCS1802GS-30-P and MCS1802GS-30-Z?

A: The parts differ only in packaging designation. Both are manufactured by Monolithic Power Systems Inc. and share identical electrical specifications, performance characteristics, and compliance certifications. The designation suffix reflects internal packaging or distribution channel classification.

Q: Are both parts RoHS compliant?

A: Yes. Both MCS1802GS-30-P and MCS1802GS-30-Z are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the operating temperature range for these sensors?

A: Both parts operate across -40°C to 125°C junction temperature (TJ), suitable for industrial and automotive applications requiring extended temperature performance.

Q: Can these sensors measure both AC and DC current?

A: Yes. Both parts are rated for AC/DC current measurement with bidirectional sensing capability across the ±30A range, providing ratiometric voltage output proportional to sensed current.

Q: What is the package footprint for these sensors?

A: Both parts use the 8-SOIC package with 0.154" (3.90mm) width. This surface-mount package is standard for automated PCB assembly processes.

Q: What is the sensitivity specification for these current sensors?

A: Both parts provide 44mV/A sensitivity with ±0.5% linearity and ±2.5% accuracy, enabling precise current measurement across the full ±30A sensing range.

Q: Is the moisture sensitivity level a concern for storage or handling?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage, handling, or assembly processes.

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