Equivalent & Substitute Parts for Honeywell 101HS1 Snap Action Switch

Part Overview

The Honeywell 101HS1 is a Single Pole Double Throw (SPDT) snap action switch with chassis mount configuration and screw terminal termination. This switch is rated for 1A AC at 115V and 20A DC at 28V, featuring a hermetically sealed design with lever straight actuator. The product maintains Active status with full RoHS compliance and unlimited moisture sensitivity rating.

Substitute parts are identified based on equivalent electrical circuit topology (SPDT), compatible mounting methodology (chassis mount), matching termination style (screw terminal), and overlapping operational voltage and current specifications within acceptable engineering tolerances.

Substiute Parts

101HS1

Honeywell Sensing and Productivity SolutionsIn Stock: 1027101HS1 Datasheet

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A-20GV22-B7-K

Omron Automation and SafetyIn Stock: 946A-20GV22-B7-K Datasheet

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TZ-1G

Omron Automation and SafetyIn Stock: 1058TZ-1G Datasheet

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Z-15GW2277-B7-K

Omron Automation and SafetyIn Stock: 1029Z-15GW2277-B7-K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 101HS1 is determined by the following mandatory criteria:

Circuit Topology: All substitute parts must maintain SPDT configuration to preserve electrical switching functionality.

Mounting and Termination: Chassis mount configuration with screw terminal termination ensures mechanical and electrical compatibility within the same installation footprint.

Voltage Compatibility: Substitute parts must support minimum 115V AC operation (primary rating of 101HS1). DC voltage ratings of 28V or higher satisfy the 28V DC specification.

Current Capacity: Substitute parts must support minimum 1A AC rating. Parts with higher current ratings (20A AC, 15A AC) remain compatible as they exceed the minimum requirement.

Switch Function: On-Momentary function must be preserved across all substitutes.

Compliance: All identified substitutes maintain RoHS compliance and MSL-1 rating, matching the original part's environmental and regulatory status.

The three identified substitutes (A-20GV22-B7-K, TZ-1G, Z-15GW2277-B7-K) satisfy all mandatory criteria while offering variations in actuator type, current capacity, and operational characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Electrical Equivalence (1A AC Rating):

The TZ-1G (Omron) provides the closest electrical match with 1A AC/DC rating at 125V AC and 30V DC. This substitute maintains identical current capacity to the 101HS1 while exceeding voltage specifications. The TZ-1G features ROHS3 compliance, exceeding the RoHS requirement of the original part. Temperature range extends to -65°C to 400°C, providing superior thermal performance. Actuator type differs (round pin plunger versus lever straight), requiring mechanical verification for installation compatibility.

For Higher Current Capacity Applications:

The A-20GV22-B7-K (Omron) supports 20A AC at 125V, matching the DC current capacity of the 101HS1 while providing significantly higher AC current handling. This part is suitable for applications requiring increased AC current margin. The roller lever actuator differs from the straight lever design.

The Z-15GW2277-B7-K (Omron) provides 15A AC rating at 125V, offering intermediate current capacity between the 101HS1 and A-20GV22-B7-K. Mechanical life rating reaches 10,000,000 cycles, exceeding other substitutes.

Compliance Verification:

All substitute parts maintain Active product status and unlimited MSL-1 rating. RoHS compliance is confirmed across all options. ECCN classification remains EAR99 for all parts, preserving export compliance status.

Frequently Asked Questions (FAQ)

Q: Can the TZ-1G replace the 101HS1 in all applications?

A: The TZ-1G satisfies all electrical substitution criteria (SPDT circuit, 1A AC rating, 125V AC, 30V DC, screw terminal, chassis mount, On-Momentary function). However, the actuator type differs (round pin plunger versus lever straight). Mechanical installation compatibility must be verified for the specific application before substitution.

Q: What is the primary difference between the three substitute options?

A: Current capacity and actuator type distinguish the substitutes. The TZ-1G matches the 1A AC rating with pin plunger actuation. The A-20GV22-B7-K provides 20A AC with roller lever actuation. The Z-15GW2277-B7-K offers 15A AC with roller lever actuation. All three maintain SPDT topology, chassis mount configuration, and screw terminal termination.

Q: Are there packaging differences between the 101HS1 and its substitutes?

A: Yes. The 101HS1 is supplied in Bulk packaging. The A-20GV22-B7-K, TZ-1G, and Z-15GW2277-B7-K are supplied in Tray packaging (except Z-15GW2277-B7-K which is Bulk). Packaging affects handling, storage, and component management but does not affect electrical or mechanical function.

Q: Does the 101HS1 have superior temperature performance compared to substitutes?

A: The 101HS1 operates from -54°C to 121°C. The TZ-1G extends this range to -65°C to 400°C, providing superior low and high temperature capability. The A-20GV22-B7-K and Z-15GW2277-B7-K operate from -25°C to 80°C, which is narrower than the 101HS1. Application temperature requirements determine which substitute is appropriate.

Q: Are all substitutes RoHS compliant?

A: Yes. The 101HS1 is RoHS Compliant. The A-20GV22-B7-K and Z-15GW2277-B7-K are RoHS Compliant. The TZ-1G is ROHS3 Compliant, which exceeds the RoHS requirement. All parts maintain MSL-1 (Unlimited) moisture sensitivity rating.

Q: What determines whether a higher current-rated substitute can be used?

A: Substitutes with higher current ratings (A-20GV22-B7-K at 20A AC, Z-15GW2277-B7-K at 15A AC) are electrically compatible with the 101HS1 (1A AC) because they exceed the minimum current requirement. However, mechanical installation space, actuator force characteristics, and operational position differences must be evaluated for the specific application.

Q: Can the 101HS1 be used in DC-only applications?

A: The 101HS1 is rated for 20A DC at 28V, making it suitable for DC applications. However, the TZ-1G (1A AC/DC) and other substitutes have lower DC current ratings (6A DC for A-20GV22-B7-K and Z-15GW2277-B7-K). For DC-only applications requiring 20A capacity, the 101HS1 remains the appropriate choice among the listed options.