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Grayhill 76RGB08T DIP Switch Rocker SPST 8-Position Equivalent & Substitute Parts
Part Overview
The Grayhill 76RGB08T is an 8-position DIP switch with rocker actuator, rated for 150mA at 30VDC, designed for through-hole PCB mounting. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing production and maintenance applications. The 76RGB08T remains available in inventory but is no longer actively manufactured, making substitute part identification critical for long-term supply chain planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Circuit Configuration | SPST (Single Pole Single Throw) |
| Number of Positions | 8 |
| Current Rating | 150mA |
| Voltage Rating | 30VDC |
| Actuator Type | Rocker |
| Actuator Level | Flush, Recessed |
| Mounting Type | Through Hole |
| Pitch | 0.100" (2.54mm) |
| Height Above Board | 0.292" (7.41mm) |
| Operating Temperature Range | -40°C to 85°C |
| Mechanical Life | 2,000 Cycles |
| Electrical Life | 2,000 Cycles |
Substitute Part Grouping Explanation
Substitution eligibility for the 76RGB08T is determined by strict equivalence across the following parameters:
Critical Matching Parameters:
- Circuit configuration: SPST
- Number of positions: 8
- Current rating: 150mA minimum
- Voltage rating: 30VDC minimum
- Actuator type: Rocker
- Mounting type: Through hole
- Pitch: 0.100" (2.54mm)
- Height above board: 0.292" (7.41mm)
- Operating temperature range: -40°C to 85°C minimum
The Grayhill 76RSB08T meets all critical electrical and mechanical parameters required for direct substitution. Both parts share identical circuit topology, position count, current and voltage ratings, physical dimensions, and thermal operating range. The primary distinction between these parts is product status and packaging configuration.
Parameter Comparison
| Parameter | 76RGB08T (Main Part) | 76RSB08T (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | Grayhill Inc. | Grayhill Inc. | Identical |
| Circuit Configuration | SPST | SPST | Identical |
| Number of Positions | 8 | 8 | Identical |
| Current Rating (Amps) | 150mA | 150mA | Identical |
| Voltage Rating | 30VDC | 30VDC | Identical |
| Actuator Type | Rocker | Rocker | Identical |
| Actuator Level | Flush, Recessed | Flush, Recessed | Identical |
| Contact Material | Copper Alloy | Copper Alloy | Identical |
| Contact Finish | Gold | Gold | Identical |
| Height Above Board | 0.292" (7.41mm) | 0.292" (7.41mm) | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Termination Style | PC Pin | PC Pin | Identical |
| Pitch | 0.100" (2.54mm), Full | 0.100" (2.54mm), Full | Identical |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | Identical |
| Mechanical Life | 2,000 Cycles | 2,000 Cycles | Identical |
| Electrical Life | 2,000 Cycles | 2,000 Cycles | Identical |
| Body Material | Thermoplastic | Thermoplastic | Identical |
| Length | 0.880" (22.35mm) | 0.880" (22.35mm) | Identical |
| Product Status | Obsolete | Active | Different |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Compatible |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Packaging | Bulk | Tube | Different |
Engineering Selection Recommendations
The Grayhill 76RSB08T is a direct functional equivalent to the 76RGB08T across all critical electrical and mechanical parameters. Selection of the 76RSB08T is supported by the following factors:
Product Status: The 76RSB08T maintains active product status with Grayhill Inc., ensuring continued availability and manufacturing support. The 76RGB08T is classified as obsolete, presenting supply continuity risk.
Regulatory Compliance: Both parts maintain REACH unaffected status. The 76RSB08T carries ROHS3 compliance, which supersedes the RoHS compliance designation of the 76RGB08T, indicating alignment with current regulatory requirements.
Electrical and Mechanical Equivalence: All functional parameters—circuit configuration, position count, current and voltage ratings, actuator characteristics, mounting configuration, and thermal operating range—are identical between the two parts.
Packaging Consideration: The 76RSB08T is supplied in tube packaging, whereas the 76RGB08T is supplied in bulk. Packaging format does not affect electrical or mechanical performance and is determined by procurement and assembly requirements.
Frequently Asked Questions (FAQ)
Q: Can the 76RSB08T be used as a direct replacement for the 76RGB08T in existing designs?
A: Yes. The 76RSB08T is electrically and mechanically equivalent to the 76RGB08T. All functional parameters, including circuit topology, position count, current and voltage ratings, physical dimensions, and thermal operating range, are identical. No design modifications are required.
Q: What is the difference between the 76RGB08T and 76RSB08T?
A: The primary differences are product status and packaging. The 76RGB08T is obsolete and supplied in bulk packaging. The 76RSB08T is an active product supplied in tube packaging. Both parts are manufactured by Grayhill Inc. and share identical electrical and mechanical specifications.
Q: Does the tube packaging of the 76RSB08T affect compatibility?
A: No. Packaging format is a logistics and assembly consideration only. Tube packaging does not alter the electrical performance, mechanical fit, or functional characteristics of the component. The part itself is identical.
Q: Are there any compliance differences between these parts?
A: Both parts maintain REACH unaffected status. The 76RSB08T carries ROHS3 compliance, which represents a current regulatory standard. The 76RGB08T carries RoHS compliance. ROHS3 compliance is compatible with applications requiring RoHS compliance.
Q: What parameters must match for a part to substitute for the 76RGB08T?
A: Critical matching parameters include SPST circuit configuration, 8-position count, 150mA current rating, 30VDC voltage rating, rocker actuator type, through-hole mounting, 0.100" pitch, 0.292" height above board, and -40°C to 85°C operating temperature range.
Q: Is the 76RSB08T available in inventory?
A: Yes. The 76RSB08T is an active product with 5,966 pieces in new original stock. The 76RGB08T remains available with 695 pieces in new original stock, though it is classified as obsolete.
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