MCS1806GS-3-30-Z Equivalent & Substitute Parts

Part Overview

The MCS1806GS-3-30-Z is a 3KVRMS isolated Hall-effect current sensor manufactured by Monolithic Power Systems Inc. This component is designed for AC/DC current measurement applications requiring differential, bidirectional sensing capability. The device operates as a ratiometric voltage output sensor with ±30A sensing range and is housed in an 8-SOIC surface mount package.

The MCS1806GS-3-30-Z maintains Active product status and is ROHS3 compliant. Substitute parts are identified based on identical electrical specifications and mechanical compatibility to ensure direct functional replacement in existing circuit designs.

Key Parameters

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

Substitute Part Grouping Explanation

The MCS1806GS-3-30-Z has one identified parametric equivalent: MCS1806GS-3-30-P. Both parts are manufactured by Monolithic Power Systems Inc. and share identical electrical and mechanical specifications.

Substitution eligibility is determined by the following critical parameters:

Current sensing range: ±30A
Sensor type: Hall Effect, Differential
Output configuration: Ratiometric, Voltage
Sensitivity: 44mV/A
Frequency response: 100kHz
Linearity tolerance: ±0.5%
Accuracy: ±2.5%
Supply voltage range: 3V ~ 3.6V
Response time: 5µs
Operating temperature range: -40°C ~ 125°C
Package: 8-SOIC (0.154", 3.90mm Width)
Isolation voltage: 3KVRMS
Compliance: ROHS3, REACH Unaffected

The distinction between MCS1806GS-3-30-Z and MCS1806GS-3-30-P is packaging format only: the Z suffix denotes Tape & Reel packaging, while the P suffix also denotes Tape & Reel packaging. Both variants are functionally and electrically identical.

Parameter Comparison

Parameter	MCS1806GS-3-30-Z	MCS1806GS-3-30-P	Match
Manufacturer	Monolithic Power Systems Inc.	Monolithic Power Systems Inc.	✓
Current Sensing	±30A	±30A	✓
Sensor Type	Hall Effect, Differential	Hall Effect, Differential	✓
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	✓
Number of Channels	1	1	✓
Isolation Voltage	3KVRMS	3KVRMS	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Active	Active	✓

Engineering Selection Recommendations

Both MCS1806GS-3-30-Z and MCS1806GS-3-30-P are suitable for direct substitution in applications requiring isolated Hall-effect current sensing with ±30A bidirectional measurement capability.

Selection between these parts should be based on:

Product Availability: MCS1806GS-3-30-Z currently has 3609 units in stock, while MCS1806GS-3-30-P has 1220 units available. Choose based on procurement lead time requirements and inventory availability.

Compliance Requirements: Both parts maintain Active product status and are ROHS3 compliant and REACH unaffected, satisfying regulatory requirements for industrial and consumer applications.

Packaging Logistics: Both parts are supplied in Tape & Reel format suitable for automated assembly processes. No mechanical or electrical differences exist between the two variants.

Circuit Integration: Identical electrical specifications ensure pin-for-pin compatibility and identical circuit behavior. No design modifications are required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Are MCS1806GS-3-30-Z and MCS1806GS-3-30-P pin-compatible?

A: Yes. Both parts use the 8-SOIC package with identical pinout and electrical characteristics. Direct substitution is possible without circuit modification.

Q: What is the difference between the Z and P suffix designations?

A: Both suffixes indicate Tape & Reel packaging format. The parts are electrically and mechanically identical. The suffix distinction relates to internal manufacturing or distribution tracking only.

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

A: Yes. Both MCS1806GS-3-30-Z and MCS1806GS-3-30-P are specified for AC/DC current measurement with bidirectional sensing capability across the ±30A range.

Q: What is the isolation voltage rating?

A: Both parts provide 3KVRMS isolation, suitable for applications requiring galvanic isolation between the primary current path and the output signal.

Q: Are these parts suitable for high-temperature applications?

A: Yes. Both parts operate across the -40°C to 125°C temperature range, supporting industrial and automotive applications within this thermal envelope.

Q: What output signal type do these sensors provide?

A: Both parts provide ratiometric voltage output with 44mV/A sensitivity, directly compatible with standard analog-to-digital converter inputs.

Q: Is moisture sensitivity a concern for PCB assembly?

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

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