Equivalent & Substitute Parts for Grayhill 94HBB10 Rotary DIP Switch

Part Overview

The Grayhill 94HBB10 is a 10-position rotary DIP switch with BCD encoding, rated for 100mA at 50VDC. This component is classified as Obsolete and is no longer in active production. The 94HBB10 features a through-hole mounting configuration with a rotary shaft actuator, sealed design, and gold-plated copper alloy contacts suitable for industrial control and instrumentation applications.

Due to its obsolete status, locating replacement inventory from original sources becomes increasingly difficult. Active equivalent models are available to ensure design continuity and supply chain reliability.

Substiute Parts

94HBB10

Grayhill Inc.In Stock: 101494HBB10 Datasheet

Current PartRFQ

94HBB10T

Grayhill Inc.In Stock: 623294HBB10T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 94HBB10 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters:

• BCD circuit configuration (10-position encoding)
• 100mA current rating
• 50VDC voltage rating

Mechanical Parameters:

• Rotary shaft actuator with raised actuator level
• Through-hole mounting with PC pin termination
• 0.100" (2.54mm) pitch spacing
• Height of 0.495" (12.57mm) above PCB
• Sealed design with washable capability

Material & Environmental:

• Copper alloy contacts with gold finish
• Operating temperature range -40°C to 85°C
• ROHS3 compliance
• MSL 1 (Unlimited moisture sensitivity level)

The 94HBB10T meets all these criteria and is classified as a direct equivalent within the Grayhill 94H series.

Parameter Comparison

Engineering Selection Recommendations

The 94HBB10T is the direct active equivalent for the obsolete 94HBB10. All electrical specifications, mechanical dimensions, contact materials, and environmental ratings are identical. The primary distinction is product status: the 94HBB10T is in active production with established supply chain availability, while the 94HBB10 is obsolete.

Compliance & Certifications: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system maintenance. The EAR99 export classification and HTSUS code 8536.50.9065 remain consistent.

Supply Chain Consideration: The 94HBB10T is available in tube packaging with significantly higher inventory levels (6189 units in stock versus 998 units for the obsolete variant). For new production runs or system replacements, the 94HBB10T is the appropriate selection.

Functional Interchangeability: No design modifications are required when substituting the 94HBB10T for the 94HBB10. PCB footprint, electrical performance, and mechanical fit are identical. The parts are pin-for-pin and functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can the 94HBB10T be used as a direct replacement for the 94HBB10 without PCB modifications?

A: Yes. The 94HBB10T is a direct equivalent with identical electrical ratings (100mA, 50VDC, BCD 10-position), mechanical dimensions (0.495" height, 0.100" pitch), and contact specifications (gold-plated copper alloy). No PCB layout changes are required.

Q: What is the difference between the 94HBB10 and 94HBB10T?

A: The primary difference is product status and packaging. The 94HBB10 is obsolete and supplied in bulk packaging. The 94HBB10T is an active production part supplied in tube packaging. All electrical and mechanical specifications are identical.

Q: Are there any environmental or compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and rated for -40°C to 85°C operation. MSL rating is 1 (Unlimited) for both variants. Export classification (EAR99) and tariff codes (HTSUS 8536.50.9065) are identical.

Q: What is the mechanical life expectancy for these switches?

A: Both the 94HBB10 and 94HBB10T are rated for 10,000 mechanical cycles. This specification applies to the rotary shaft actuator and internal contact mechanism under normal operating conditions.

Q: Is the sealed design maintained in the 94HBB10T?

A: Yes. The 94HBB10T retains the sealed design and washable capability of the original 94HBB10. Both parts are suitable for applications requiring environmental protection and cleaning processes.

Q: What packaging options are available?

A: The 94HBB10 was supplied in bulk packaging. The 94HBB10T is supplied in tube packaging, which provides improved component protection and handling efficiency for production environments.