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NHDS06T DIP Switch Equivalent & Substitute Parts
Part Overview
The NHDS06T is a 6-position surface mount DIP switch manufactured by APEM Inc., designed for applications requiring low-current switching at 24VDC. This component features a slide actuator with gold-plated copper alloy contacts and is rated for 25mA at 24VDC. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Circuit Configuration | SPST (Single Pole Single Throw) |
| Number of Positions | 6 |
| Current Rating | 25mA |
| Voltage Rating | 24VDC |
| Actuator Type | Slide (Standard) |
| Mounting Type | Surface Mount |
| Termination Style | Gull Wing |
| Pitch | 0.050" (1.27mm), Half |
| Contact Material | Copper Alloy with Gold Finish |
| Operating Temperature Range | -40°C to 85°C |
| Mechanical Life | 1,000 Cycles |
| Electrical Life | 1,000 Cycles |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the NHDS06T is determined by strict equivalence across the following critical parameters:
- Circuit configuration (SPST)
- Number of positions (6)
- Current and voltage ratings (25mA at 24VDC)
- Actuator type and actuation method (Slide, Standard)
- Mounting technology (Surface Mount)
- Termination style (Gull Wing)
- Pitch spacing (0.050", Half)
- Contact material and finish (Copper Alloy, Gold)
- Operating temperature range (-40°C to 85°C)
- Mechanical and electrical life ratings (1,000 Cycles)
The Grayhill Inc. 97C06ST meets all these criteria and qualifies as a direct substitute for the obsolete NHDS06T.
Parameter Comparison
| Parameter | NHDS06T (APEM Inc.) | 97C06ST (Grayhill Inc.) |
|---|---|---|
| Circuit Configuration | SPST | SPST |
| Number of Positions | 6 | 6 |
| Current Rating | 25mA | 25mA |
| Voltage Rating | 24VDC | 24VDC |
| Actuator Type | Slide (Standard) | Slide (Standard) |
| Actuator Level | Flush, Recessed | Flush, Recessed |
| Contact Material | Copper Alloy | Copper Alloy |
| Contact Finish | Gold | Gold |
| Height Above Board | 0.062" (1.57mm) | 0.063" (1.60mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Termination Style | Gull Wing | Gull Wing |
| Pitch | 0.050" (1.27mm), Half | 0.050" (1.27mm), Half |
| Washable | Yes | Yes |
| Features | Tape Seal | Tape Seal |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C |
| Body Material | Thermoplastic | Polyamide (PA), Nylon |
| Length | 0.348" (8.85mm) | 0.348" (8.85mm) |
| Mechanical Life | 1,000 Cycles | 1,000 Cycles |
| Electrical Life | 1,000 Cycles | Not specified |
| Product Status | Obsolete | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8536.50.9065 | 8536.50.9065 |
Engineering Selection Recommendations
The 97C06ST from Grayhill Inc. is a qualified substitute for the obsolete NHDS06T. Both components are ROHS3 compliant, REACH unaffected, and carry identical export classification (EAR99). The 97C06ST maintains active product status, ensuring ongoing availability and supply chain continuity. The height differential of 0.001" (0.03mm) between the two components is within typical PCB assembly tolerances and does not impact functional performance or board-level compatibility. Both components support identical electrical specifications, mechanical cycling life, and operating temperature ranges required for 24VDC switching applications.
Frequently Asked Questions (FAQ)
Q: Can the 97C06ST directly replace the NHDS06T in existing designs?
A: Yes. The 97C06ST meets all electrical and mechanical specifications of the NHDS06T. Both components feature identical circuit configuration (SPST), position count (6), current and voltage ratings (25mA at 24VDC), actuator type (Slide Standard), mounting method (Surface Mount), and termination style (Gull Wing). The minimal height variance (0.001") does not affect PCB assembly or functional operation.
Q: What is the significance of the body material difference between the two parts?
A: The NHDS06T uses thermoplastic while the 97C06ST uses polyamide (PA) nylon. Both materials provide equivalent mechanical and thermal performance within the specified operating range (-40°C to 85°C). This difference does not impact electrical performance, reliability, or compatibility.
Q: Are there any compliance or certification differences between these parts?
A: No. Both the NHDS06T and 97C06ST are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Both carry identical HTSUS classification (8536.50.9065).
Q: What packaging is available for the 97C06ST?
A: The 97C06ST is supplied in tube packaging, suitable for automated assembly processes and component handling.
Q: Why is the NHDS06T obsolete?
A: The NHDS06T has been discontinued by APEM Inc. The 97C06ST from Grayhill Inc. provides functional and electrical equivalence for applications requiring 6-position DIP switches with 25mA at 24VDC specifications.
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