Molex 0761650836 Impact 72-Position Backplane Connector Header

Part Overview

The Molex 0761650836 is a 72-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 a 9×8 matrix with 24 differential pairs. The part is currently obsolete, making identification of compatible substitutes essential for legacy system maintenance and board redesign applications. Active alternatives within the Impact 76165 series provide direct functional equivalence while maintaining current manufacturing support.

Key Parameters

Parameter	Value
Manufacturer Part Number	0761650836
Manufacturer	Molex
Category	Backplane Connectors
Series	Impact 76165
Connector Type	Header, Male Pins
Number of Positions	72
Pitch	0.053" (1.35mm)
Matrix Configuration	9 Rows × 8 Columns
Contact Layout	24 Differential Pairs
Mounting Type	Through Hole
Termination	Press-Fit
Contact Finish	Gold, 30.0µin (0.76µm)
Operating Temperature Range	-55°C to +85°C
Voltage Rating	30V
Material Flammability	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the Molex 0761650836 is determined by strict equivalence across the following critical parameters:

Connector Type & Style: Header with male pins, Impact series construction
Position Count & Matrix: 72 positions in 9×8 configuration
Pitch & Spacing: 0.053" (1.35mm) center-to-center spacing
Contact Configuration: 24 differential pairs layout
Mounting & Termination: Through-hole PCB mounting with press-fit termination
Electrical Ratings: 30V voltage rating
Environmental Compliance: UL94 V-0 flammability, ROHS3 compliance, MSL 1

The substitute part 0761651836 maintains identical electrical, mechanical, and environmental specifications while differing only in packaging format (Tray vs. bulk) and product status (Active vs. Obsolete). This part is sourced from the same manufacturer and series, ensuring pin-for-pin compatibility and identical performance characteristics.

Parameter Comparison

Parameter	0761650836 (Main)	0761651836 (Substitute)	Match
Manufacturer	Molex	Molex	✓
Series	Impact 76165	Impact 76165	✓
Connector Type	Header, Male Pins	Header, Male Pins	✓
Number of Positions	72	72	✓
Pitch	0.053" (1.35mm)	0.053" (1.35mm)	✓
Matrix Configuration	9 × 8	9 × 8	✓
Contact Layout	24 Differential Pairs	24 Differential Pairs	✓
Mounting Type	Through Hole	Through Hole	✓
Termination	Press-Fit	Press-Fit	✓
Contact Finish	Gold, 30.0µin	Gold, 30.0µin	✓
Operating Temperature	-55°C to +85°C	-55°C to +85°C	✓
Voltage Rating	30V	30V	✓
Material Flammability	UL94 V-0	UL94 V-0	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity	MSL 1	MSL 1	✓
Product Status	Obsolete	Active	—
Packaging	Bulk	Tray	—

Engineering Selection Recommendations

The Molex 0761651836 is the direct functional equivalent for the obsolete 0761650836. Both parts are manufactured by Molex within the Impact 76165 series and share identical electrical, mechanical, and environmental specifications. The primary distinction is product status: the 0761651836 maintains active manufacturing support, ensuring long-term availability and supply chain continuity.

For applications currently using the 0761650836, the 0761651836 provides seamless substitution without design modification. Both parts comply with ROHS3 regulations and UL94 V-0 flammability requirements, maintaining equivalent performance across the specified operating temperature range of -55°C to +85°C and voltage rating of 30V.

The packaging difference (Tray for the substitute vs. bulk for the original) does not affect electrical or mechanical compatibility and reflects standard manufacturing practices for active product lines.

Frequently Asked Questions (FAQ)

Q: Can the 0761651836 be used as a direct replacement for the 0761650836 without PCB redesign?

A: Yes. Both parts are pin-for-pin compatible with identical pitch (0.053"), position count (72), matrix configuration (9×8), and press-fit termination. No PCB layout modifications are required.

Q: Are there differences in electrical performance between these parts?

A: No. Both parts share identical voltage rating (30V), contact finish (gold, 30.0µin), and operating temperature range (-55°C to +85°C). Electrical performance is equivalent.

Q: What is the significance of the packaging difference?

A: The 0761650836 is supplied in bulk packaging, while the 0761651836 is supplied in Tray packaging. This reflects standard practices for obsolete versus active product lines and does not affect component functionality or compatibility.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the 0761650836 and 0761651836 are ROHS3 compliant with UL94 V-0 flammability rating and MSL 1 moisture sensitivity level.

Q: Why is the 0761650836 marked as obsolete?

A: The 0761650836 has been superseded by the 0761651836 within Molex's product portfolio. The substitute maintains active manufacturing status and is the recommended part for new designs and legacy system maintenance.

Q: Are there any compatibility considerations for differential pair applications?

A: No. Both parts maintain identical 24 differential pair contact layout and configuration, ensuring equivalent performance in high-speed differential signaling applications.

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