DB2CA1LB Snap Action Switch SPDT Equivalent & Substitute Parts

Part Overview

The DB2CA1LB is a snap action switch manufactured by ZF Electronics, featuring SPDT (Single Pole Double Throw) circuit configuration with On-Momentary switching function. This chassis-mounted switch is rated for 10A at 125V AC with a straight lever actuator and solder lug termination. The part is currently active in production status and RoHS3 compliant.

Substitute parts are identified when equivalent electrical ratings, mechanical mounting compatibility, and circuit configuration align with the main part specifications. Alternative models may be required due to component availability, manufacturing discontinuation, or specific application requirements within the allowed parameter ranges.

Key Parameters

Parameter	DB2CA1LB Value
Manufacturer	ZF Electronics
Circuit Configuration	SPDT
Switch Function	On-Momentary
Current Rating	10A (AC)
Voltage Rating - AC	125V
Actuator Type	Lever, Straight
Mounting Type	Chassis Mount
Termination Style	Solder Lug
Operating Temperature Range	-40°C to 120°C
Ingress Protection	IP50 - Dust Protected
RoHS Status	RoHS3 Compliant
Mechanical Life	10,000,000 Cycles

Substitute Part Grouping Explanation

Substitution eligibility for the DB2CA1LB is determined by the following critical parameters:

Circuit configuration must be SPDT
Switch function must be On-Momentary
Mounting type must be Chassis Mount
Actuator type must be Lever, Straight
Termination style must be Solder Lug
Operating temperature range must encompass or exceed -40°C to 120°C
Current and voltage ratings must meet or exceed application requirements

Substitute parts are grouped based on electrical compatibility (current and voltage ratings) and mechanical interchangeability (mounting, actuator, and termination). Parts with lower current ratings or different termination styles are included when they satisfy the core substitution criteria, as they represent valid alternatives for applications with reduced electrical demands or where termination compatibility permits.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage Rating - AC	Voltage Rating - DC	Actuator Type	Termination Style	Operating Temperature	Mechanical Life	RoHS Status	Product Status
DB2CA1LB	ZF Electronics	10A (AC)	125V	—	Lever, Straight	Solder Lug	-40°C to 120°C	10,000,000	RoHS3	Active
111SM1-H58	Honeywell	5A (AC/DC)	250V	30V	Lever, Straight	Quick Connect - 0.058"	-55°C to 125°C	10,000,000	RoHS	Active
111SM115-H58	Honeywell	5A (AC/DC)	250V	30V	Lever, Straight	Quick Connect - 0.058"	-55°C to 125°C	10,000,000	RoHS	Active
1HM1	Honeywell	5A (DC)	—	28V	Lever, Straight	Solder Lug	-65°C to 121°C	—	RoHS	Active
311SM4-H58	Honeywell	5A (AC/DC)	250V	30V	Lever, Simulated Roller	Quick Connect - 0.058"	-55°C to 125°C	10,000,000	RoHS	Active
ABS1411503	Panasonic Electric Works	2A (AC/DC)	125V	30V	Lever, Straight	Solder Lug	-40°C to 85°C	5,000,000	RoHS	Active
ABS1411513	Panasonic Electric Works	100mA (AC/DC)	125V	30V	Lever, Straight	Solder Lug	-40°C to 85°C	5,000,000	RoHS3	Active
ABS1411549	Panasonic Electric Works	100mA (DC)	—	30V	Lever, Straight	Solder Lug	-40°C to 85°C	5,000,000	RoHS3	Active
ZM50D10B01	Honeywell	5A (AC)	125V	—	Lever, Straight	Solder Lug	-40°C to 120°C	10,000,000	RoHS	Active
ZV50E10B01	Honeywell	6A (AC)	125V	—	Lever, Straight	Solder Lug	-40°C to 120°C	10,000,000	RoHS	Obsolete

Engineering Selection Recommendations

Selection of substitute parts must account for the following factors based on provided specifications:

Electrical Compatibility: The DB2CA1LB operates at 10A, 125V AC. Substitute parts with equal or higher current ratings at equivalent or higher voltage ratings maintain full electrical compatibility. Parts with lower current ratings (5A, 2A, 100mA) are suitable only for applications with reduced electrical demands.

Termination Compatibility: The main part uses Solder Lug termination. Substitutes with identical termination (ZM50D10B01, ZV50E10B01, ABS series) provide direct mechanical compatibility. Parts with Quick Connect termination (111SM series, 311SM4-H58) require circuit board or connector modifications.

Temperature Range: The DB2CA1LB operates from -40°C to 120°C. Substitute parts with equal or extended temperature ranges maintain thermal compatibility. ABS series parts are limited to -40°C to 85°C, restricting use in applications requiring the full -40°C to 120°C range.

Product Status: ZV50E10B01 is marked Obsolete and should be avoided for new designs. All other substitute parts maintain Active status.

Compliance: All substitute parts are RoHS compliant. The DB2CA1LB and ABS1411513, ABS1411549 are RoHS3 compliant, providing enhanced environmental compliance for regulated applications.

Mechanical Life: The DB2CA1LB and most Honeywell substitutes (111SM series, 311SM4-H58, ZM50D10B01, ZV50E10B01) are rated for 10,000,000 mechanical cycles. Panasonic ABS series parts are rated for 5,000,000 cycles, suitable for applications with lower cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the 111SM1-H58 directly replace the DB2CA1LB?

A: The 111SM1-H58 shares SPDT circuit configuration, On-Momentary function, and Lever Straight actuator. However, it uses Quick Connect termination instead of Solder Lug, requiring circuit board modifications. Current rating is 5A versus 10A, and voltage rating is 250V AC versus 125V AC. Electrical compatibility is maintained, but mechanical integration differs.

Q: What is the difference between ZM50D10B01 and ZV50E10B01?

A: Both parts feature identical mounting, actuator, and termination specifications. ZM50D10B01 is rated 5A at 125V AC with Active product status. ZV50E10B01 is rated 6A at 125V AC but carries Obsolete product status. For new applications, ZM50D10B01 is the preferred choice due to active manufacturing support.

Q: Are Panasonic ABS series parts suitable for high-cycle applications?

A: Panasonic ABS series parts are rated for 5,000,000 mechanical cycles, compared to 10,000,000 cycles for the DB2CA1LB and most Honeywell alternatives. Selection depends on application cycle requirements. For applications exceeding 5,000,000 cycles, Honeywell ZM50D10B01 or equivalent is recommended.

Q: Can low-current parts like ABS1411549 (100mA) substitute for the DB2CA1LB (10A)?

A: ABS1411549 maintains SPDT configuration, On-Momentary function, Lever Straight actuator, and Solder Lug termination. However, 100mA current rating is significantly lower than 10A. Substitution is valid only for applications with current demands below 100mA. Voltage rating is limited to 30V DC, further restricting application scope.

Q: What temperature range limitations exist for substitute parts?

A: The DB2CA1LB operates -40°C to 120°C. Honeywell parts (111SM series, 1HM1, 311SM4-H58, ZM50D10B01, ZV50E10B01) maintain or exceed this range. Panasonic ABS series parts are limited to -40°C to 85°C, unsuitable for applications requiring operation above 85°C or the full upper temperature range of 120°C.

Q: Is the 1HM1 compatible with AC applications?

A: The 1HM1 is rated 5A DC at 28V only. It lacks AC voltage rating and is unsuitable for AC applications. Selection is restricted to DC circuits operating at 28V or below.

Q: How does actuator type affect substitution?

A: The DB2CA1LB uses Lever Straight actuator. Most substitutes maintain this specification. The 311SM4-H58 uses Lever Simulated Roller actuator, which may affect actuation force and travel characteristics. Mechanical compatibility must be verified for specific mounting and actuation requirements.

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