SZL-VL-G Equivalent & Substitute Parts Reference

Part Overview

The SZL-VL-G is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with screw terminal connections. This component features a 5A AC / 400mA DC current rating at 250V AC / 125V DC, with IP64 ingress protection suitable for dust-tight and water-resistant environments.

The SZL-VL-G is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this switch configuration.

Substiute Parts

SZL-VL-G

Honeywell Sensing and Productivity SolutionsIn Stock: 1190SZL-VL-G Datasheet

Current PartRFQ

SZL-VL-S-G-N-M

Honeywell Sensing and Productivity SolutionsIn Stock: 888SZL-VL-S-G-N-M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SZL-VL-G are identified within the SZL-VL product family based on compatibility across the following core parameters:

Mandatory Compatibility Parameters:

• Circuit configuration: SPDT (DB/DM)
• Switch function: On-Momentary
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Actuator type: Spring, Wire
• Mechanical life: 10,000,000 Cycles
• RoHS compliance status
• Manufacturer: Honeywell Sensing and Productivity Solutions

Variable Parameters (Application-Dependent):

• Current rating (AC/DC)
• Voltage rating (AC/DC)
• Ingress protection rating
• Operating temperature range
• Operating force
• Pretravel and overtravel specifications

The substitute part SZL-VL-S-G-N-M maintains identical circuit topology, mounting configuration, and termination method. However, it operates at different electrical ratings and environmental specifications, requiring application-level verification before deployment.

Parameter Comparison

Engineering Selection Recommendations

SZL-VL-G (Obsolete): The SZL-VL-G is classified as obsolete and no longer in active production. While 1,087 units remain in stock as new original inventory, this part number should not be selected for new designs or long-term production commitments.

SZL-VL-S-G-N-M (Active Substitute): The SZL-VL-S-G-N-M is an active product with 814 units in stock. Both parts are RoHS compliant and manufactured by the same supplier. The substitute part is suitable for applications where the following conditions are met:

• Circuit topology requirements: SPDT configuration with On-Momentary function
• Mounting and termination: Chassis mount with screw terminals
• Electrical requirements: Load current does not exceed 500mA AC or 50mA DC
• Voltage requirements: Supply voltage does not exceed 380V AC or 220V DC
• Environmental requirements: IP67 ingress protection is acceptable or beneficial
• Operating temperature: Application operates within -20°C to 70°C range
• Mechanical cycling: Application requires up to 10,000,000 mechanical cycles

The SZL-VL-S-G-N-M provides enhanced ingress protection (IP67 versus IP64) and extended temperature range, making it suitable for more demanding environmental conditions. However, it operates at reduced current and electrical life ratings compared to the original part.

Frequently Asked Questions (FAQ)

Q: Can the SZL-VL-S-G-N-M directly replace the SZL-VL-G in all applications?

A: No. While both parts share identical circuit topology, mounting configuration, and termination style, the SZL-VL-S-G-N-M has lower current ratings (500mA AC versus 5A AC; 50mA DC versus 400mA DC). Substitution is valid only when the application load current remains below these limits.

Q: What are the key differences between these two parts?

A: The primary differences are current rating, voltage rating, ingress protection class, operating temperature range, operating force, and electrical life. The SZL-VL-S-G-N-M provides higher voltage capability (380V AC versus 250V AC) and better environmental sealing (IP67 versus IP64), but lower current handling capacity.

Q: Why does the SZL-VL-G show as obsolete?

A: The SZL-VL-G is classified as obsolete by the manufacturer, indicating it is no longer in active production. The SZL-VL-S-G-N-M represents the active product line continuation within the SZL-VL family.

Q: Are both parts RoHS compliant?

A: Yes. Both the SZL-VL-G and SZL-VL-S-G-N-M are RoHS compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What is the difference between IP64 and IP67 ingress protection?

A: IP64 provides dust-tight protection and water resistance to splashing. IP67 provides dust-tight protection and waterproof capability for temporary immersion. The SZL-VL-S-G-N-M offers superior environmental sealing.

Q: Can I use the SZL-VL-S-G-N-M in a 5A application?

A: No. The SZL-VL-S-G-N-M is rated for 500mA AC maximum. Using it in a 5A application will exceed its current rating and may cause component failure or safety hazards.

Q: What is the packaging difference between these parts?

A: The SZL-VL-G packaging is listed as dash (not specified). The SZL-VL-S-G-N-M is supplied in bulk packaging.

Q: How do the mechanical life ratings compare?

A: Both parts are rated for 10,000,000 mechanical cycles, indicating equivalent mechanical durability and switch actuation lifespan.

Q: What does the operating force difference mean?

A: The SZL-VL-G requires 90gf (gram-force) to actuate, while the SZL-VL-S-G-N-M requires 204gf. The substitute part requires greater manual or mechanical force to trigger the switch action.