Molex 0760556103 Equivalent & Substitute Parts

Part Overview

The Molex 0760556103 is a 150-position backplane connector header with male pins, designed for through-hole PCB mounting. This connector features press-fit termination, gold-plated contacts, and is part of the Impact 76055 series. The main part is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this connector type is specified.

Key Parameters

Parameter	Value
Manufacturer	Molex
Series	Impact 76055
Number of Positions	150
Connector Type	Header, Male Pins
Pitch	0.053" (1.35mm)
Mounting Type	Through Hole
Termination	Press-Fit
Contact Finish	Gold, 30.0µin (0.76µm)
Voltage Rating	30V
Operating Temperature	-55°C ~ 85°C
Material Flammability	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The substitute parts for Molex 0760556103 are qualified based on strict electrical and mechanical parameter matching within the Impact 76055 series. Substitution is valid when all of the following criteria are met:

Identical number of positions (150)
Identical pitch specification (0.053" / 1.35mm)
Identical connector type (Header, Male Pins)
Identical mounting method (Through Hole)
Identical termination type (Press-Fit)
Identical contact finish and thickness (Gold, 30.0µin)
Identical voltage and temperature ratings
Identical flammability and RoHS compliance

The substitute parts 0760553103 and 0760557103 meet all these criteria and are direct functional equivalents. The primary distinction is product status: while 0760556103 is obsolete, both substitute parts maintain active status with current manufacturing availability.

Parameter Comparison

Parameter	0760556103 (Main)	0760553103 (Substitute)	0760557103 (Substitute)
Manufacturer	Molex	Molex	Molex
Series	Impact 76055	Impact 76055	Impact 76055
Product Status	Obsolete	Active	Active
Number of Positions	150	150	150
Connector Type	Header, Male Pins	Header, Male Pins	Header, Male Pins
Connector Style	Impact, Guide Left	Impact, Guide Left	Impact, Guide Left
Pitch	0.053" (1.35mm)	0.053" (1.35mm)	0.053" (1.35mm)
Rows × Columns	15 × 10	15 × 10	15 × 10
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Press-Fit	Press-Fit	Press-Fit
Contact Layout	50 Differential Pairs	50 Differential Pairs	50 Differential Pairs
Contact Finish	Gold, 30.0µin (0.76µm)	Gold, 30.0µin (0.76µm)	Gold, 30.0µin (0.76µm)
Color	Black	Black	Black
Voltage Rating	30V	30V	30V
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C
Material Flammability	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)
ECCN	EAR99	EAR99	EAR99
HTSUS Code	8536.69.4040	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

Both substitute parts 0760553103 and 0760557103 are direct functional equivalents to the obsolete 0760556103. Selection between them should be based on availability and packaging requirements:

0760553103: Active product status with 848 units in current inventory. Supplied in tray packaging. Recommended for applications requiring immediate availability.

0760557103: Active product status with 881 units in current inventory. Supplied in tray packaging. Includes REACH Unaffected certification documentation. Recommended for applications with REACH compliance documentation requirements.

Both parts maintain identical electrical performance, mechanical compatibility, and regulatory compliance. PCB layout and connector interface specifications remain unchanged when substituting either part for the obsolete 0760556103.

Frequently Asked Questions (FAQ)

Q: Can 0760553103 and 0760557103 be used interchangeably with 0760556103?

A: Yes. All three parts share identical electrical specifications, mechanical dimensions, pitch, contact configuration, and mounting requirements. The substitute parts are active products with current manufacturing support, whereas 0760556103 is obsolete.

Q: What is the difference between the two substitute parts?

A: 0760553103 and 0760557103 are functionally identical. The primary difference is that 0760557103 includes REACH Unaffected certification status. Both are supplied in tray packaging and maintain identical performance characteristics.

Q: Are there any PCB layout modifications required when switching to a substitute part?

A: No. Both substitute parts maintain the same 0.053" (1.35mm) pitch, 150-position configuration, 15×10 row/column arrangement, and through-hole mounting specifications. PCB footprints and connector interfaces remain unchanged.

Q: What is the contact layout configuration?

A: All three parts feature 50 differential pairs within the 150-position header configuration.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and suitable for applications with RoHS requirements.

Q: What is the moisture sensitivity level?

A: All three parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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