Omron Z-01H55 Equivalent & Substitute Parts

Part Overview

The Omron Z-01H55 is an SPDT snap action switch rated for 100mA at 125V AC and 30V DC, featuring a round pin plunger actuator and chassis mount configuration with solder lug termination. This component is currently active in production. Substitute parts are identified based on matching circuit topology (SPDT), switch function (On-Mom), mounting type (Chassis Mount), and compatible electrical ratings within the specified parameter ranges.

Substiute Parts

Z-01H55

Omron Automation and SafetyIn Stock: 1110Z-01H55 Datasheet

Current PartRFQ

BE-2R2425

Honeywell Sensing and Productivity SolutionsIn Stock: 916BE-2R2425 Datasheet

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BM-1R369-A41

Honeywell Sensing and Productivity SolutionsIn Stock: 989BM-1R369-A41 Datasheet

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BZ-3R

Honeywell Sensing and Productivity SolutionsIn Stock: 732BZ-3R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Z-01H55 are qualified based on the following criteria:

Required Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom
• Mounting type: Chassis Mount
• Actuator type: Round (Pin Plunger)
• Voltage rating (AC): 125V minimum
• RoHS compliance status

Allowable Parameter Variations:

• Current rating: Substitutes may exceed the 100mA specification, provided the application does not require the lower current rating as a design constraint
• Termination style: Solder lug or screw terminal are both acceptable for chassis mount applications
• Operating temperature range: Substitutes with wider or equivalent ranges are acceptable
• Mechanical life: All candidates meet or exceed 20,000,000 cycles

Substitutes Identified:

1. BE-2R2425 (Honeywell) – Higher current rating (25A AC), wider temperature range, screw terminal
2. BM-1R369-A41 (Honeywell) – Higher current rating (22A AC), matching operating position, screw terminal
3. BZ-3R (Honeywell) – Higher current rating (15A AC), dual voltage DC rating (125V), solder lug termination

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: BZ-3R

The BZ-3R is the preferred substitute for the Z-01H55. Both parts share active product status, identical operating position (0.625"), matching solder lug termination, and equivalent mechanical life ratings. The BZ-3R provides higher current capacity (15A AC vs. 100mA) and extended DC voltage rating (125V vs. 30V), making it suitable for applications requiring greater electrical headroom. Both parts are RoHS compliant and maintain the same chassis mount configuration with round pin plunger actuation.

Secondary Substitutes: BE-2R2425 and BM-1R369-A41

Both Honeywell parts are classified as obsolete but remain in inventory. These substitutes are electrically compatible with the Z-01H55 in terms of circuit topology and AC voltage rating. However, their obsolete status and screw terminal configuration require design consideration. The BM-1R369-A41 maintains the exact operating position (0.625") and offers a narrower operating force range (312–482gf) compared to the Z-01H55 (350gf nominal). The BE-2R2425 has a slightly different operating position (0.640" vs. 0.625"), which may affect mechanical fit in space-constrained applications.

Compliance Consideration:

All substitute parts maintain RoHS compliance and MSL Level 1 (Unlimited) moisture sensitivity, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the BZ-3R directly replace the Z-01H55 in my application?

A: Yes, provided your circuit design accommodates the higher current rating (15A AC vs. 100mA). The BZ-3R matches the Z-01H55 in circuit configuration (SPDT), switch function (On-Mom), operating position (0.625"), and termination style (solder lug). Both are active products with RoHS compliance.

Q: Why are the Honeywell BE and BM series listed as obsolete?

A: Product status reflects manufacturer lifecycle classification. Obsolete parts may still be available from inventory but are no longer in active production. For new designs, the active BZ-3R is recommended.

Q: What is the difference between solder lug and screw terminal termination?

A: Solder lug termination requires soldering to PCB pads or wire connections, while screw terminal termination uses mechanical fastening. The Z-01H55 and BZ-3R use solder lug; the BE-2R2425 and BM-1R369-A41 use screw terminals. Termination style affects assembly method and must be verified against your circuit board design.

Q: Can I use a substitute with a higher current rating in a low-current application?

A: Yes. A higher current-rated switch can operate safely at lower currents. The Z-01H55 (100mA) can be replaced with the BZ-3R (15A AC) in applications drawing less than 100mA without performance degradation.

Q: Are there DC voltage considerations when substituting?

A: Yes. The Z-01H55 is rated for 30V DC, while the BZ-3R is rated for 125V DC. If your application uses DC voltage, verify that the substitute's DC rating meets or exceeds your circuit requirements. The BE-2R2425 and BM-1R369-A41 do not specify DC ratings.

Q: What is the significance of operating position in substitution?

A: Operating position (travel distance) affects mechanical fit and actuation feel. The Z-01H55, BM-1R369-A41, and BZ-3R all have 0.625" operating position, ensuring mechanical compatibility. The BE-2R2425 has 0.640" position, which may require mechanical adjustment in space-constrained designs.

Q: Are all substitutes RoHS compliant?

A: Yes. The Z-01H55, BE-2R2425, BM-1R369-A41, and BZ-3R are all RoHS compliant with MSL Level 1 (Unlimited) moisture sensitivity, meeting standard environmental and regulatory requirements.