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LB15SKW01-28-JB Equivalent & Substitute Parts
Part Overview
The LB15SKW01-28-JB is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 3A/125V AC rating. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The primary distinction between this part and its active substitute lies in the illumination technology and corresponding voltage requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | NKK Switches |
| Series | LB |
| Circuit Configuration | SPDT |
| Switch Function | On-Mom (Momentary) |
| Current Rating | 3A (AC/DC) |
| Voltage Rating - AC | 125V |
| Voltage Rating - DC | 30V |
| Mounting Type | Panel Mount, Snap-In |
| Actuator Type | Square, Button |
| Panel Cutout Dimensions | Square - 16.20mm x 16.20mm |
| Mechanical Life | 1,000,000 Cycles |
| Electrical Life | 100,000 Cycles |
| Operating Temperature | -25°C ~ 50°C |
| Termination Style | Solder, Quick Connect - 0.110" (2.8mm) |
Substitute Part Grouping Explanation
The LB15SKW01-28-JB has one identified substitute: LB15SKW01-6B-JB. Both parts share the same base product number (LB15SKW01) and maintain electrical and mechanical compatibility across all critical parameters:
Matching Parameters (Substitution Basis):
- Circuit configuration: SPDT
- Switch function: On-Mom
- Current rating: 3A (AC/DC)
- Voltage ratings: 125V AC / 30V DC
- Mounting type: Panel Mount, Snap-In
- Actuator type: Square, Button
- Panel cutout dimensions: 16.20mm x 16.20mm
- Mechanical life: 1,000,000 Cycles
- Electrical life: 100,000 Cycles
- Operating temperature range: -25°C ~ 50°C
- Termination style: Solder, Quick Connect - 0.110" (2.8mm)
Differentiating Parameter:
- Illumination technology and voltage: LB15SKW01-28-JB uses Incandescent illumination at 28 VAC/DC; LB15SKW01-6B-JB uses LED illumination at 3.3 VDC
Parameter Comparison
| Parameter | LB15SKW01-28-JB (Main) | LB15SKW01-6B-JB (Substitute) |
|---|---|---|
| Manufacturer | NKK Switches | NKK Switches |
| Product Status | Obsolete | Active |
| Series | LB | LB |
| Circuit Configuration | SPDT | SPDT |
| Switch Function | On-Mom | On-Mom |
| Current Rating | 3A (AC/DC) | 3A (AC/DC) |
| Voltage Rating - AC | 125V | 125V |
| Voltage Rating - DC | 30V | 30V |
| Mounting Type | Panel Mount, Snap-In | Panel Mount, Snap-In |
| Actuator Type | Square, Button | Square, Button |
| Actuator Color | Clear (White Filter/Diffuser) | Clear (White Filter/Diffuser) |
| Panel Cutout Dimensions | Square - 16.20mm x 16.20mm | Square - 16.20mm x 16.20mm |
| Illumination Type | Incandescent, White | LED, White |
| Illumination Voltage | 28 VAC/DC | 3.3 VDC |
| Mechanical Life | 1,000,000 Cycles | 1,000,000 Cycles |
| Electrical Life | 100,000 Cycles | 100,000 Cycles |
| Operating Temperature | -25°C ~ 50°C | -25°C ~ 50°C |
| Termination Style | Solder, Quick Connect - 0.110" (2.8mm) | Solder, Quick Connect - 0.110" (2.8mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The LB15SKW01-6B-JB is the active equivalent for the obsolete LB15SKW01-28-JB. Both parts maintain identical electrical and mechanical specifications, ensuring direct functional compatibility in panel mount applications requiring SPDT momentary pushbutton switches rated for 3A/125V AC operation.
The primary consideration for selection is illumination voltage compatibility. The substitute part transitions from incandescent illumination (28 VAC/DC) to LED illumination (3.3 VDC), requiring verification that the circuit design can accommodate the lower LED voltage requirement. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The active product status of LB15SKW01-6B-JB ensures ongoing availability and supply chain continuity.
Frequently Asked Questions (FAQ)
Q: Can LB15SKW01-6B-JB directly replace LB15SKW01-28-JB in existing designs?
A: Mechanical and electrical compatibility is confirmed across all switch parameters. The illumination voltage differs (28 VAC/DC versus 3.3 VDC), requiring circuit design verification to ensure the power supply can deliver the lower LED voltage.
Q: What is the primary difference between these two parts?
A: The illumination technology and corresponding voltage requirement. LB15SKW01-28-JB uses incandescent illumination at 28 VAC/DC, while LB15SKW01-6B-JB uses LED illumination at 3.3 VDC. All other electrical and mechanical parameters are identical.
Q: Are both parts available in the same packaging?
A: LB15SKW01-28-JB is supplied in standard packaging with 1108 pieces in stock. LB15SKW01-6B-JB is supplied in bulk packaging with 1073 pieces in stock. Both use identical termination styles and panel cutout dimensions.
Q: Do both parts meet current compliance standards?
A: Yes. Both LB15SKW01-28-JB and LB15SKW01-6B-JB are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level).
Q: What is the mechanical compatibility between these parts?
A: Both parts feature identical panel mount snap-in configuration with 16.20mm x 16.20mm square cutout dimensions and 0.110" (2.8mm) quick connect termination. They are mechanically interchangeable.
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