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Molex 0761450627 Impact 288-Position Backplane Connector Header
Part Overview
The Molex 0761450627 is a 288-position Impact series backplane connector header designed for through-hole PCB mounting. This component features male pins with press-fit termination and is configured as an 18-row by 16-column array supporting 96 differential pairs. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 0761450627 |
| Manufacturer | Molex |
| Series | Impact 76145 |
| Number of Positions | 288 |
| Pitch | 0.053" (1.35mm) |
| Array Configuration | 18 Rows × 16 Columns |
| Contact Layout | 96 Differential Pairs |
| Connector Type | Header, Male Pins |
| Mounting Type | Through Hole |
| Termination | Press-Fit |
| Contact Finish | Gold, 30.0µin (0.76µm) |
| Voltage Rating | 30V |
| Operating Temperature | -55°C to 85°C |
| Material Flammability | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
The Molex 0761451627 qualifies as a direct functional equivalent to the 0761450627 based on the following critical parameters:
- Connector Position Count: Both parts feature 288 positions
- Pitch Specification: Identical 0.053" (1.35mm) pitch
- Array Geometry: Both configured as 18 rows × 16 columns
- Differential Pair Configuration: Both support 96 differential pairs
- Connector Type and Style: Both are Impact series male pin headers
- Mounting and Termination: Both use through-hole mounting with press-fit termination
- Electrical Ratings: Both rated at 30V with identical operating temperature range (-55°C to 85°C)
- Contact Specifications: Both feature gold-plated contacts at 30.0µin thickness
- Compliance: Both are ROHS3 compliant with UL94 V-0 flammability rating
The primary distinction is product status: the 0761451627 is active production, whereas the 0761450627 is obsolete. Packaging differs (tray for the substitute versus unspecified for the original), but this does not affect functional compatibility.
Parameter Comparison
| Parameter | 0761450627 (Original) | 0761451627 (Substitute) |
|---|---|---|
| Manufacturer | Molex | Molex |
| Series | Impact 76145 | Impact 76145 |
| Number of Positions | 288 | 288 |
| Pitch | 0.053" (1.35mm) | 0.053" (1.35mm) |
| Rows × Columns | 18 × 16 | 18 × 16 |
| Differential Pairs | 96 | 96 |
| Connector Type | Header, Male Pins | Header, Male Pins |
| Mounting Type | Through Hole | Through Hole |
| Termination | Press-Fit | Press-Fit |
| Contact Finish | Gold, 30.0µin (0.76µm) | Gold, 30.0µin (0.76µm) |
| Voltage Rating | 30V | 30V |
| Operating Temperature | -55°C to 85°C | -55°C to 85°C |
| Flammability Rating | UL94 V-0 | UL94 V-0 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The Molex 0761451627 is the appropriate selection for applications currently specified with the 0761450627. Both components are ROHS3 compliant and carry identical electrical and mechanical specifications. The 0761451627 maintains active production status, ensuring supply chain continuity and availability for new designs and production runs.
For existing designs using the 0761450627, direct substitution with the 0761451627 is supported without circuit modification or re-qualification, provided that packaging and handling procedures align with the tray format of the substitute part.
Frequently Asked Questions (FAQ)
Q: Are the 0761450627 and 0761451627 mechanically interchangeable?
A: Yes. Both components share identical pitch (0.053"), position count (288), array configuration (18×16), and through-hole mounting specifications. PCB footprints are identical.
Q: What is the difference between these two parts?
A: The primary difference is product status. The 0761450627 is obsolete; the 0761451627 is in active production. Secondary difference is packaging: the substitute is supplied in tray format. Electrical and mechanical specifications are identical.
Q: Can I use the 0761451627 in place of the 0761450627 in existing assemblies?
A: Yes. The substitute part meets all electrical and mechanical requirements of the original specification. No design changes are required.
Q: Are both parts RoHS compliant?
A: Yes. Both the 0761450627 and 0761451627 are ROHS3 compliant and carry UL94 V-0 flammability certification.
Q: What is the moisture sensitivity level for these connectors?
A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
Q: Does the tray packaging of the 0761451627 affect compatibility?
A: No. Packaging format does not affect electrical or mechanical compatibility. Tray packaging is a logistics consideration only.
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