Equivalent & Substitute Parts for 76RSB08

Part Overview

The 76RSB08 is an 8-position DIP rocker switch manufactured by Grayhill Inc., rated for 150mA at 30VDC with SPST circuit configuration. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The part features through-hole mounting with PC pin termination, copper alloy contacts with gold finish, and operates across -40°C to 85°C temperature range.

Substiute Parts

76RSB08

Grayhill Inc.In Stock: 70976RSB08 Datasheet

Current PartRFQ

76RSB08T

Grayhill Inc.In Stock: 606676RSB08T Datasheet

DirectRFQ

435668-7

TE Connectivity ALCOSWITCH SwitchesIn Stock: 991435668-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76RSB08 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Circuit configuration (SPST)
• Number of positions (8)
• Actuator type (Rocker)
• Mounting type (Through Hole)
• Termination style (PC Pin)
• Pitch (0.100" / 2.54mm)
• Contact material and finish (Copper Alloy, Gold)

Electrical Performance Criteria:

• Current rating must equal or exceed 150mA
• Voltage rating must equal or exceed 30VDC
• Operating temperature range must encompass -40°C to 85°C

Mechanical Compatibility Criteria:

• Height above board tolerance within specified dimensions
• Length compatibility (0.880" / 22.35mm)
• Mechanical and electrical life ratings of 2,000 cycles minimum

Substitutes are classified into two categories based on electrical parameter alignment with the original specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 76RSB08T (Grayhill Inc.)

The 76RSB08T is the direct active equivalent of the obsolete 76RSB08. This part maintains identical electrical ratings (150mA at 30VDC), mechanical configuration, and physical dimensions. The 76RSB08T is manufactured by the same supplier (Grayhill Inc.) and achieves ROHS3 compliance, addressing regulatory requirements for new production. Packaging is supplied in tube format rather than bulk. This substitute is suitable for direct replacement in all applications where the original 76RSB08 was specified.

Secondary Substitute: 435668-7 (TE Connectivity ALCOSWITCH)

The 435668-7 is an alternative from TE Connectivity ALCOSWITCH Switches (7100 series). This part shares identical mechanical and circuit configuration (SPST, 8-position, rocker actuator, through-hole mounting, PC pin termination, 0.100" pitch). Physical dimensions are equivalent within tolerance (height 0.290" vs. 0.292"). However, electrical ratings differ significantly: 60mA at 5VDC versus 150mA at 30VDC. The 435668-7 operates across an extended temperature range (-55°C to 105°C) and features glass-filled polyester body material. This substitute is applicable only to applications with reduced electrical requirements (≤60mA at ≤5VDC). The 435668-7 achieves ROHS3 compliance and is supplied in bulk packaging.

Compliance Considerations:

Both active substitutes achieve ROHS3 compliance, addressing environmental and regulatory requirements for modern production. The original 76RSB08 is RoHS non-compliant. Selection between 76RSB08T and 435668-7 must account for application electrical requirements and regulatory compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can the 76RSB08T directly replace the obsolete 76RSB08 in existing designs?

A: Yes. The 76RSB08T maintains identical electrical ratings (150mA at 30VDC), circuit configuration (SPST), position count (8), actuator type (rocker), mounting method (through-hole), termination style (PC pin), pitch (0.100"), and physical dimensions (0.292" height, 0.880" length). The primary difference is packaging format (tube versus bulk) and ROHS3 compliance status. No circuit modifications are required.

Q: Is the 435668-7 a suitable replacement for the 76RSB08?

A: The 435668-7 is mechanically and functionally compatible but electrically limited. It shares identical circuit topology (SPST), position count (8), actuator configuration (rocker), mounting type (through-hole), termination (PC pin), and pitch (0.100"). However, electrical ratings are reduced: 60mA at 5VDC versus the original 150mA at 30VDC. The 435668-7 is suitable only for applications requiring ≤60mA at ≤5VDC. Applications requiring the full 150mA at 30VDC rating must use the 76RSB08T.

Q: What are the key mechanical compatibility factors between these substitutes?

A: All three parts share identical mechanical specifications: 8-position SPST rocker actuator, through-hole mounting with PC pin termination, 0.100" (2.54mm) pitch, and 0.880" (22.35mm) length. Height above board is 0.292" for both Grayhill parts and 0.290" for the TE Connectivity part, a difference of 0.002" within standard PCB assembly tolerances. Contact material (copper alloy with gold finish) and mechanical life (2,000 cycles) are identical across all three parts.

Q: How do operating temperature ranges compare?

A: The 76RSB08 and 76RSB08T both operate from -40°C to 85°C. The 435668-7 extends this range to -55°C to 105°C, providing broader environmental capability. For applications within the -40°C to 85°C window, all three parts are functionally equivalent in this parameter. Applications requiring operation below -40°C or above 85°C must use the 435668-7, provided electrical requirements do not exceed 60mA at 5VDC.

Q: What packaging differences exist between these parts?

A: The 76RSB08 (obsolete) and 435668-7 are supplied in bulk packaging. The 76RSB08T (active Grayhill equivalent) is supplied in tube packaging. Packaging format does not affect electrical or mechanical performance; selection should be based on procurement and assembly process requirements.

Q: Are there RoHS compliance implications for substitute selection?

A: The original 76RSB08 is RoHS non-compliant. Both active substitutes (76RSB08T and 435668-7) achieve ROHS3 compliance. For new designs or production requiring RoHS compliance, either active substitute is acceptable. For legacy systems where RoHS compliance is not mandated, the 76RSB08T provides direct electrical and mechanical equivalence to the original part.