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KB15RKG01-6B-JB Equivalent & Substitute Parts
Part Overview
The KB15RKG01-6B-JB is a pushbutton switch manufactured by NKK Switches, classified as SPDT (Single Pole Double Throw) with 0.4VA rating at 28V. This illuminated panel mount switch features a rectangular button actuator with white LED illumination and solder lug termination. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and component sourcing in legacy applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | KB15RKG01-6B-JB |
| Manufacturer | NKK Switches |
| Series | KB |
| Product Status | Obsolete |
| Circuit Configuration | SPDT |
| Switch Function | On-Mom |
| Current Rating | 0.4VA (AC/DC) |
| Voltage Rating (AC/DC) | 28V |
| Mounting Type | Panel Mount, Front |
| Illumination | LED, White, 3.3VDC |
| Termination Style | Solder Lug |
| Panel Cutout Diameter | 12.30mm |
| Operating Temperature | -25°C to 50°C |
| Mechanical Life | 100,000 Cycles |
| Electrical Life | 100,000 Cycles |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the KB15RKG01-6B-JB is determined by strict alignment of the following electrical and mechanical parameters:
Critical Matching Parameters:
- Circuit configuration: SPDT
- Switch function: On-Mom
- Current rating: 0.4VA (AC/DC)
- Voltage rating: 28V (AC and DC)
- Illumination type and color: LED, White
- Illumination voltage: 3.3VDC
- Operating temperature range: -25°C to 50°C
- Mounting type: Panel Mount, Front
- Actuator type: Rectangular, Button
- Color: Clear with White Filter/Diffuser
Parameters Allowing Variation:
- Termination style (solder lug vs. quick connect)
- Panel cutout diameter (mechanical accommodation required)
- Mechanical and electrical life ratings (higher values acceptable)
- Product status (active substitutes preferred for obsolete parts)
The YB15RKG01-6B-JB qualifies as a substitute based on matching all critical electrical parameters and core mechanical specifications, despite differences in termination style and panel cutout dimensions.
Parameter Comparison
| Parameter | KB15RKG01-6B-JB (Main) | YB15RKG01-6B-JB (Substitute) |
|---|---|---|
| Manufacturer | NKK Switches | NKK Switches |
| Product Status | Obsolete | Active |
| Circuit Configuration | SPDT | SPDT |
| Switch Function | On-Mom | On-Mom |
| Current Rating | 0.4VA (AC/DC) | 0.4VA (AC/DC) |
| Voltage Rating (AC) | 28V | 28V |
| Voltage Rating (DC) | 28V | 28V |
| Mounting Type | Panel Mount, Front | Panel Mount, Front |
| Actuator Type | Rectangular, Button | Rectangular, Button |
| Color - Actuator/Cap | Clear (White Filter/Diffuser) | Clear (White Filter/Diffuser) |
| Illumination Type, Color | LED, White | LED, White |
| Illumination Voltage | 3.3VDC | 3.3VDC |
| Operating Temperature | -25°C to 50°C | -25°C to 50°C |
| Mechanical Life | 100,000 Cycles | 1,000,000 Cycles |
| Electrical Life | 100,000 Cycles | 100,000 Cycles |
| Termination Style | Solder Lug | Solder, Quick Connect - 0.110" (2.8mm) |
| Panel Cutout Diameter | 12.30mm | 16.00mm |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The YB15RKG01-6B-JB is the qualified substitute for the obsolete KB15RKG01-6B-JB based on the following engineering criteria:
Compliance and Certification Alignment: Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility in existing applications.
Electrical Equivalence: Identical circuit configuration (SPDT), switch function (On-Mom), current rating (0.4VA AC/DC), and voltage rating (28V AC/DC) ensure direct functional replacement in electrical circuits.
Illumination Compatibility: Matching LED white illumination at 3.3VDC nominal voltage maintains visual feedback consistency in panel-mounted applications.
Product Status Advantage: The YB15RKG01-6B-JB is currently active in production, providing supply chain continuity and long-term availability compared to the obsolete KB15RKG01-6B-JB.
Mechanical Considerations: The substitute features a larger panel cutout diameter (16.00mm vs. 12.30mm) and enhanced mechanical life rating (1,000,000 cycles vs. 100,000 cycles). Panel modification is required to accommodate the larger cutout diameter. Termination style differs (quick connect vs. solder lug), requiring circuit board connection method adjustment.
Frequently Asked Questions (FAQ)
Q: Can the YB15RKG01-6B-JB directly replace the KB15RKG01-6B-JB without modifications?
A: Electrical substitution is direct. Mechanical integration requires panel cutout enlargement from 12.30mm to 16.00mm diameter. Termination connection method differs; solder lug connections must be adapted to accommodate quick connect terminals.
Q: Are the electrical ratings identical between these parts?
A: Yes. Both parts share identical SPDT circuit configuration, On-Mom switch function, 0.4VA current rating, and 28V voltage rating (AC/DC). Illumination specifications are also identical: LED white at 3.3VDC nominal.
Q: What is the significance of the different mechanical life ratings?
A: The KB15RKG01-6B-JB is rated for 100,000 mechanical cycles, while the YB15RKG01-6B-JB is rated for 1,000,000 cycles. The substitute provides extended mechanical durability. Both maintain identical 100,000-cycle electrical life rating.
Q: Why is the panel cutout diameter different?
A: The KB15RKG01-6B-JB requires a 12.30mm circular cutout, while the YB15RKG01-6B-JB requires 16.00mm. This is a mechanical design difference between the KB and YB series. Panel modification is necessary for physical installation.
Q: Are both parts RoHS compliant?
A: Yes. Both the KB15RKG01-6B-JB and YB15RKG01-6B-JB are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.
Q: What is the difference in termination style?
A: The KB15RKG01-6B-JB uses solder lug termination for direct PCB soldering. The YB15RKG01-6B-JB provides both solder and quick connect (0.110" / 2.8mm) termination options, offering connection flexibility.
Q: Is the YB15RKG01-6B-JB available in stock?
A: The YB15RKG01-6B-JB is an active product with 1,076 pieces in new original stock, providing reliable supply availability compared to the obsolete KB15RKG01-6B-JB.
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