CT10-2030-G2 Equivalent & Substitute Parts

Part Overview

The CT10-2030-G2 is a molded body reed switch manufactured by Coto Technology, configured as a single-pole single-throw normally open (SPST-NO) device. This component is designed for surface mount applications with a switching capacity of 500mA at 140V AC and 200V DC, rated for 10W power dissipation. The device operates across a temperature range of -40°C to 125°C with an activation range of 20 to 30AT (Ampere-Turns).

The product maintains Active status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for the application.

Key Parameters

Parameter	Value
Circuit Configuration	SPST-NO
Current - Switching (AC/DC)	500mA
Voltage - Switching AC	140V
Voltage - Switching DC	200V
Power - Rated	10W
Operate Range	20 ~ 30AT
Mounting Type	Surface Mount
Termination Style	Gull Wing
Operating Temperature	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CT10-2030-G2 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Circuit configuration must be SPST-NO
Switching voltage ratings must support minimum 140V AC and 200V DC
Switching current capacity must accommodate 500mA AC/DC operation
Rated power must be 10W or greater

Mechanical Compatibility Requirements:

Mounting type must be Surface Mount
Termination style must be Gull Wing
Package form factor must be compatible with PCB layout constraints

Compliance & Environmental Requirements:

RoHS3 compliance mandatory
Operating temperature range must encompass -40°C to 125°C or be suitable for the intended application thermal envelope

The substitute part 59165-1-T-00-D from Littelfuse Inc. meets these substitution criteria within the specified parameter boundaries.

Parameter Comparison

Parameter	CT10-2030-G2 (Coto Technology)	59165-1-T-00-D (Littelfuse Inc.)	Compatibility
Circuit Configuration	SPST-NO	SPST-NO	Equivalent
Current - Switching AC	500mA	350mA	Littelfuse rated lower for AC
Current - Switching DC	500mA	500mA	Equivalent
Voltage - Switching AC	140V	140V	Equivalent
Voltage - Switching DC	200V	200V	Equivalent
Power - Rated	10W	10W	Equivalent
Operate Range	20 ~ 30AT	15 ~ 20AT	Littelfuse operates at lower threshold
Mounting Type	Surface Mount	Surface Mount	Equivalent
Termination Style	Gull Wing	Gull Wing	Equivalent
Operating Temperature	-40°C ~ 125°C	-40°C ~ 105°C	Littelfuse upper limit 20°C lower
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Packaging	Bulk	Tape & Reel (TR)	Different packaging format

Engineering Selection Recommendations

Primary Part: CT10-2030-G2

The CT10-2030-G2 is the specified component and should be used when design parameters require the full 500mA AC switching current capacity, the extended operating temperature range to 125°C, and the 20 to 30AT activation threshold. This part is Active status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute Part: 59165-1-T-00-D

The 59165-1-T-00-D from Littelfuse Inc. is substitutable under the following conditions:

Application switching current does not exceed 350mA AC (500mA DC operation is supported)
Maximum operating temperature requirement does not exceed 105°C
Activation threshold of 15 to 20AT is acceptable for the application
Tape & Reel packaging format is compatible with assembly processes

Both parts maintain Active product status and full RoHS3 compliance. The substitute part offers higher DC current carry capacity (800mA versus 500mA) and lower operate time specifications (1 ms), which may provide operational advantages in specific DC-dominant applications.

Frequently Asked Questions (FAQ)

Q: Can the 59165-1-T-00-D replace the CT10-2030-G2 in all applications?

A: No. The substitute part has a reduced AC switching current rating of 350mA compared to the primary part's 500mA. Applications requiring 500mA AC switching must use the CT10-2030-G2. Additionally, the maximum operating temperature of the substitute is 105°C versus 125°C for the primary part.

Q: What is the significance of the different operate range specifications (20~30AT versus 15~20AT)?

A: The operate range defines the magnetic field strength (in Ampere-Turns) required to activate the reed switch. The CT10-2030-G2 requires a stronger magnetic field (20~30AT) compared to the 59165-1-T-00-D (15~20AT). This affects compatibility with the magnetic actuator or coil used in the application.

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

A: The CT10-2030-G2 supports operation to 125°C, making it suitable for higher temperature environments. The 59165-1-T-00-D is rated to 105°C maximum. For applications exceeding 105°C, the CT10-2030-G2 is required.

Q: What is the difference between the packaging formats?

A: The CT10-2030-G2 is supplied in bulk packaging, while the 59165-1-T-00-D is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated assembly processes, while bulk packaging is suitable for manual assembly or lower-volume applications.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the CT10-2030-G2 and 59165-1-T-00-D are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can the 59165-1-T-00-D be used in DC-only applications where the CT10-2030-G2 is specified?

A: Yes, for DC-only applications. The 59165-1-T-00-D supports 500mA DC switching current, matching the primary part. However, all other parameter constraints (temperature range, operate range, packaging) must still be evaluated for compatibility.

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