SB862 Equivalent & Substitute Parts

Part Overview

The SB862 is an obsolete pushbutton switch manufactured by NKK Switches, classified as a SPST (Single Pole Single Throw) standard panel mount component. This switch is rated for 10A at 125V AC and features a round black button actuator with solder lug termination. Due to its obsolete product status, identifying equivalent and substitute parts is necessary for design continuity, maintenance, and system replacement applications where the original component is no longer available from primary sources.

Substiute Parts

SB862

NKK SwitchesIn Stock: 961SB862 Datasheet

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SB265

NKK SwitchesIn Stock: 3573SB265 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SB862 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration (SPST)
• Switch function (On-Off)
• Mounting type (Panel Mount, Rear)
• Panel cutout dimensions (Circular - 12.50mm Dia)
• Termination style (Solder Lug)
• Operating temperature range (-10°C to 70°C)

Allowable Variation Parameters:

• Current rating: Substitute must meet or exceed 10A AC requirement
• Voltage rating: Must be rated for 125V AC minimum
• Actuator type and color: May differ while maintaining functional compatibility
• Mechanical and electrical life: May vary within acceptable operational parameters

The SB265 qualifies as a substitute despite its lower current rating (6A versus 10A) when the application circuit does not require the full 10A capacity. Both parts share identical mounting geometry, panel cutout dimensions, circuit topology, and termination method, enabling direct mechanical and electrical interchange in compatible applications.

Parameter Comparison

Engineering Selection Recommendations

SB862 Primary Application: The SB862 is suitable for applications requiring 10A switching capacity at 125V AC with SPST on-off functionality. Both the main part and substitute are classified as obsolete, indicating limited availability through standard distribution channels.

SB265 Substitution Criteria: The SB265 is a valid substitute when the application circuit operates at or below 6A AC. The identical panel cutout geometry (12.50mm circular), matching termination method (solder lug), and equivalent operating temperature range ensure mechanical and electrical compatibility. The SB265 carries ROHS3 compliance, providing an advantage for applications subject to environmental regulations.

Compliance Considerations: Both parts maintain REACH Unaffected status. The SB265 offers superior compliance posture through ROHS3 certification. Selection between these parts should be based on actual circuit current requirements rather than maximum rated capacity.

Frequently Asked Questions (FAQ)

Q: Can the SB265 directly replace the SB862 in all applications? A: Direct replacement is possible only when the application circuit draws 6A or less. The SB265 is rated for 6A maximum, while the SB862 is rated for 10A. Verify actual circuit current draw before substitution.

Q: Are the panel cutout dimensions identical between SB862 and SB265? A: Yes. Both parts require a circular 12.50mm diameter panel cutout, enabling direct mechanical interchange without panel modification.

Q: What is the difference between the actuator types? A: The SB862 features a round button actuator in black, while the SB265 uses a plunger-type actuator with a cap in silver. Both provide on-off switching function with identical electrical performance.

Q: Do both parts use the same termination method? A: Yes. Both the SB862 and SB265 employ solder lug termination, allowing identical circuit board integration and wiring practices.

Q: What is the significance of the obsolete product status? A: Obsolete status indicates these components are no longer in active production. Availability is limited to existing inventory. For new designs, current-production alternatives from NKK Switches or other manufacturers should be evaluated.

Q: Are there compliance differences between these parts? A: The SB265 is ROHS3 compliant, while the SB862 compliance status is not specified. Both maintain REACH Unaffected status. For applications requiring environmental compliance certification, the SB265 is the preferred choice.