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Molex 0850010385 64-Position DIN Header Connector - Equivalent & Substitute Parts
Part Overview
The Molex 0850010385 is a 64-position DIN connector header designed for backplane applications with male pins, gold plating, and right-angle through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The connector accommodates high-density signal routing in industrial and telecommunications equipment where standardized DIN form factors are required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Header, Male Pins |
| Number of Positions | 64 |
| Pitch | 0.100" (2.54mm) |
| Number of Rows | 2 |
| Style | B |
| Mounting Type | Through Hole, Right Angle |
| Contact Finish | Gold |
| Termination | Solder |
| Material Flammability Rating | UL94 V-0 |
| Operating Temperature Range | -55°C to 125°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the Molex 0850010385 is determined by strict alignment of the following critical parameters:
- Connector Type & Gender: Header with male pins (fixed requirement)
- Position Count & Row Configuration: 64 positions arranged in 2 rows (fixed requirement)
- Pitch & Spacing: 0.100" (2.54mm) standard DIN pitch (fixed requirement)
- Mounting Style: Right-angle through-hole PCB mounting (fixed requirement)
- Contact Material: Gold plating for signal integrity (fixed requirement)
- Termination Method: Solder attachment to PCB (fixed requirement)
- Flammability Compliance: UL94 V-0 rating (fixed requirement)
The Hirose Electric Co Ltd PCN10MC-64P-2.54DS(72) meets all mandatory substitution criteria, maintaining identical mechanical and electrical interface specifications while offering active product status and improved supply availability.
Parameter Comparison
| Parameter | Molex 0850010385 | Hirose PCN10MC-64P-2.54DS(72) | Compatibility |
|---|---|---|---|
| Connector Type | Header, Male Pins | Header, Male Pins | Match |
| Number of Positions | 64 | 64 | Match |
| Pitch | 0.100" (2.54mm) | 0.100" (2.54mm) | Match |
| Number of Rows | 2 | 2 | Match |
| Style | B | B | Match |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Match |
| Contact Finish | Gold | Gold | Match |
| Termination | Solder | Solder | Match |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | Match |
| Operating Temperature Range | -55°C to 125°C | -55°C to 85°C | Hirose range is subset |
| Contact Finish Thickness | 24.0µin (0.61µm) | 8.00µin (0.203µm) | Both within gold plating standards |
| Insulation Material | Polyester Thermoplastic | Polybutylene Terephthalate (PBT) | Both UL94 V-0 rated |
| RoHS Status | ROHS3 Compliant | RoHS Compliant | Both compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Match |
| Product Status | Obsolete | Active | Substitute is current production |
Engineering Selection Recommendations
The Hirose Electric Co Ltd PCN10MC-64P-2.54DS(72) is the qualified substitute for the obsolete Molex 0850010385 based on the following engineering criteria:
Mechanical Compatibility: Both connectors maintain identical 64-position, 2-row configuration with 0.100" pitch and right-angle through-hole mounting. PCB footprints are interchangeable without layout modification.
Electrical Compatibility: Gold contact finish on both parts ensures equivalent signal integrity and corrosion resistance. The Hirose part carries a 2A current rating specification, whereas the Molex part does not specify current capacity. Both maintain UL94 V-0 flammability compliance.
Thermal Considerations: The Molex part operates across -55°C to 125°C, while the Hirose substitute operates across -55°C to 85°C. For applications requiring operation above 85°C, the Molex part remains the only option. For standard industrial temperature ranges (-55°C to 85°C), the Hirose part is fully qualified.
Regulatory Compliance: Both parts are RoHS compliant and carry MSL 1 (unlimited moisture sensitivity). The Hirose part is current production with active supply status, eliminating obsolescence risk.
Supply & Availability: The Hirose substitute offers 1400 units in current stock versus 895 units of the obsolete Molex part, providing superior long-term availability and supply chain stability.
Frequently Asked Questions (FAQ)
Q: Can the Hirose PCN10MC-64P-2.54DS(72) be used as a direct replacement in existing designs using the Molex 0850010385?
A: Yes, for applications operating within the -55°C to 85°C temperature range. The connectors are mechanically and electrically interchangeable with identical PCB footprints, pin configurations, and contact specifications. No circuit board redesign is required.
Q: What is the significance of the different operating temperature ranges?
A: The Molex part supports extended high-temperature operation to 125°C, while the Hirose substitute is rated to 85°C. If your application requires sustained operation above 85°C, the Molex part is necessary. For standard industrial environments, the Hirose part is fully adequate.
Q: Are the gold plating thicknesses equivalent?
A: Both parts use gold plating with different thickness specifications (Molex: 24.0µin; Hirose: 8.00µin). Both thicknesses meet industry standards for connector durability and signal integrity. The difference reflects different manufacturing processes, not performance variation.
Q: What is the difference between Polyester Thermoplastic and PBT insulation materials?
A: Both materials achieve UL94 V-0 flammability rating. PBT (Polybutylene Terephthalate) offers superior chemical resistance and dimensional stability, while Polyester Thermoplastic provides equivalent electrical insulation properties. Both are suitable for backplane connector applications.
Q: Does the Hirose part's 2A current rating apply to all 64 positions simultaneously?
A: The current rating specification provided indicates the per-contact current capacity. Actual system current distribution depends on circuit design and load configuration. Consult detailed datasheets for specific current distribution requirements.
Q: Are there any packaging differences between the two parts?
A: The Molex part is supplied in standard packaging, while the Hirose substitute is supplied in trays. Both are suitable for automated assembly processes. Verify packaging compatibility with your procurement and assembly workflows.
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