PB1-3PYZQ Equivalent & Substitute Parts

Part Overview

The PB1-3PYZQ is an APEM Inc. pushbutton switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 6A at 125V AC and 7A at 30V DC. This component features a standard panel mount rear configuration with a round plunger actuator and solder lug termination. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

PB1-3PYZQ

APEM Inc.In Stock: 796PB1-3PYZQ Datasheet

Current PartRFQ

E112SYZQE

C&KIn Stock: 950E112SYZQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PB1-3PYZQ is determined by the following critical parameters:

• Circuit Configuration: Must be SPDT to maintain electrical functionality
• Switch Function: Must be On-Mom (momentary) operation
• Mounting Type: Must be Panel Mount, Rear to ensure mechanical compatibility
• Actuator Type: Must be Round, Plunger for form factor compatibility
• Termination Style: Must be Solder Lug for connection compatibility
• Panel Cutout Dimensions: Must be Circular - 6.35mm Dia for panel integration
• Voltage Rating (AC): Must support minimum 125V AC
• Current Rating: Must support minimum 4A AC or equivalent DC rating
• Regulatory Compliance: Must maintain ROHS3 compliance

The E112SYZQE from C&K meets these substitution criteria with the following considerations: it maintains identical circuit, mounting, actuator, termination, and panel cutout specifications. Current and voltage ratings are within acceptable operational parameters for most applications, though the lower electrical life rating (40,000 cycles versus 100,000 cycles) and reduced operating temperature maximum (-30°C to 75°C versus -30°C to 85°C) represent functional differences that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The E112SYZQE qualifies as a functional substitute for the PB1-3PYZQ based on matching circuit topology, mounting configuration, and mechanical form factor. Both components maintain ROHS3 compliance and unlimited moisture sensitivity ratings, supporting equivalent environmental handling requirements.

Selection of the E112SYZQE should account for the following parameter differences:

• Current Capacity: The substitute is rated at 4A AC/DC versus the original 6A AC and 7A DC. Applications requiring current levels above 4A are not suitable for this substitute.
• Operating Temperature: The substitute maximum operating temperature is 75°C versus 85°C for the original. Applications with sustained operating temperatures above 75°C require the original component or alternative substitutes.
• Electrical Life: The substitute provides 40,000 cycles versus 100,000 cycles for the original. Applications with high cycle count requirements may require evaluation of long-term reliability implications.
• Product Status: The E112SYZQE is active production status, ensuring ongoing availability and supply chain continuity compared to the obsolete PB1-3PYZQ.

Frequently Asked Questions (FAQ)

Q: Can the E112SYZQE directly replace the PB1-3PYZQ in existing designs?

A: Direct mechanical and electrical replacement is possible for applications operating at or below 4A current levels and 75°C maximum temperature. Panel cutout dimensions, mounting configuration, and circuit topology are identical. Applications exceeding these parameters require alternative component selection.

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

A: The primary differences are current rating (6A/7A versus 4A), maximum operating temperature (85°C versus 75°C), and electrical life (100,000 versus 40,000 cycles). All other functional parameters including circuit configuration, mounting type, actuator style, and termination method are identical.

Q: Why is the PB1-3PYZQ listed as obsolete?

A: Obsolete status indicates the component is no longer in active production by APEM Inc. The E112SYZQE from C&K provides an active production alternative with equivalent mechanical and electrical characteristics for most applications.

Q: Are there packaging differences between these components?

A: The PB1-3PYZQ is packaged with standard packaging notation, while the E112SYZQE is supplied in bulk packaging. Both components use identical solder lug termination and panel mount configuration.

Q: What compliance certifications apply to both components?

A: Both the PB1-3PYZQ and E112SYZQE maintain ROHS3 compliance and REACH unaffected status. Both components carry MSL rating of 1 (unlimited moisture sensitivity level), indicating no special moisture handling requirements during storage or assembly.