Molex 0761458604 Equivalent & Substitute Parts

Part Overview

The Molex 0761458604 is a 288-position backplane connector header with male pins, designed for through-hole PCB mounting. This connector features an Impact style with guide right orientation, 18 rows by 16 columns configuration, and gold-plated contacts rated for 30V operation across -55°C to 85°C. The part is currently obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations where this connector type is specified.

Key Parameters

Parameter	Value
Manufacturer	Molex
Series	Impact 76145
Number of Positions	288
Connector Type	Header, Male Pins
Connector Style	Impact, Guide Right
Pitch	0.053" (1.35mm)
Configuration	18 Rows × 16 Columns
Mounting Type	Through Hole
Termination	Press-Fit
Contact Layout	96 Differential Pairs
Contact Finish	Gold, 30.0µin (0.76µm)
Voltage Rating	30V
Operating Temperature	-55°C to 85°C
Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Molex 0761458604 are qualified based on identical electrical and mechanical parameters within the Impact 76145 series. The substitution criteria are strictly limited to:

Identical connector type (Header, Male Pins)
Identical connector style (Impact, Guide Right)
Identical number of positions (288)
Identical pitch (0.053" / 1.35mm)
Identical row and column configuration (18 × 16)
Identical mounting type (Through Hole)
Identical termination method (Press-Fit)
Identical contact layout (96 Differential Pairs)
Identical contact finish and thickness (Gold, 30.0µin)
Identical voltage and temperature ratings
Identical compliance certifications (ROHS3, UL94 V-0)

The two qualified substitutes differ only in product status (Active vs. Obsolete) and packaging format, with no electrical or mechanical deviations.

Parameter Comparison

Parameter	0761458604 (Main)	0761455604 (Substitute)	0761459604 (Substitute)
Manufacturer	Molex	Molex	Molex
Series	Impact 76145	Impact 76145	Impact 76145
Product Status	Obsolete	Active	Active
Packaging	Bulk	Tray	Tray
Number of Positions	288	288	288
Connector Type	Header, Male Pins	Header, Male Pins	Header, Male Pins
Connector Style	Impact, Guide Right	Impact, Guide Right	Impact, Guide Right
Pitch	0.053" (1.35mm)	0.053" (1.35mm)	0.053" (1.35mm)
Configuration	18 × 16	18 × 16	18 × 16
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Press-Fit	Press-Fit	Press-Fit
Contact Layout	96 Differential Pairs	96 Differential Pairs	96 Differential Pairs
Contact Finish	Gold, 30.0µin (0.76µm)	Gold, 30.0µin (0.76µm)	Gold, 30.0µin (0.76µm)
Voltage Rating	30V	30V	30V
Operating Temperature	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C
Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Status	1061 Pcs	773 Pcs	955 Pcs

Engineering Selection Recommendations

Both substitute parts (0761455604 and 0761459604) are fully qualified replacements for the obsolete 0761458604. Selection between substitutes should be based on:

Product Status: Both substitutes carry Active status, ensuring continued manufacturer support and availability for future procurement cycles.

Compliance Certifications: All three parts maintain identical ROHS3 compliance and UL94 V-0 flammability ratings, meeting regulatory requirements for the same application environments.

Packaging Consideration: The main part ships in bulk packaging, while both substitutes are supplied in tray packaging. Tray packaging provides improved handling and storage protection for high-pin-count connectors during logistics and assembly operations.

Inventory Availability: Part 0761459604 offers the highest current stock level (955 pcs), followed by 0761455604 (773 pcs), supporting immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can 0761455604 and 0761459604 be used interchangeably with 0761458604?

A: Yes. All three parts are electrically and mechanically identical within the Impact 76145 series. They share identical connector type, position count, pitch, configuration, contact specifications, and compliance ratings. The only differences are product status and packaging format.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active status indicates the substitute parts are in current production and supported by Molex for ongoing orders. This ensures long-term availability and eliminates supply chain risk associated with obsolete components.

Q: Does the tray packaging affect PCB assembly compatibility?

A: No. Tray packaging is a logistics and storage format only. The connector itself remains identical in form, fit, and function. Tray packaging provides superior protection during handling and storage compared to bulk packaging.

Q: Are there any electrical performance differences between the three part numbers?

A: No. All three parts maintain identical electrical specifications: 30V voltage rating, -55°C to 85°C operating temperature range, gold contact finish at 30.0µin thickness, and 96 differential pair configuration.

Q: Which substitute should be selected for new designs?

A: Either 0761455604 or 0761459604 is appropriate for new designs. Selection may be based on inventory availability or packaging preferences. Both carry Active status and full compliance certifications.

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