Amphenol ICC 70233-178 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 70233-178 is a 48-position backplane connector header with male pins for through-hole PCB mounting. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement. The part belongs to the Metral® series and features press-fit termination with gold-plated contacts rated for 1A continuous current across an operating temperature range of -55°C to 125°C.

Key Parameters

Parameter	Value
Manufacturer Part Number	70233-178
Manufacturer	Amphenol ICC (FCI)
Category	Backplane Connectors
Number of Positions	48
Pitch	0.079" (2.00mm)
Number of Rows	4
Connector Type	Header, Male Pins
Mounting Type	Through Hole
Termination	Press-Fit
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Current Rating	1A
Operating Temperature	-55°C to 125°C
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the 70233-178 is determined by strict alignment of the following electrical and mechanical parameters:

Position Count & Pitch: 48 positions at 0.079" (2.00mm) pitch
Physical Configuration: 4-row through-hole header with male pins
Electrical Performance: 1A current rating, UL94 V-0 flammability rating, -55°C to 125°C operating range
Contact System: Gold-plated contacts with 30.0µin (0.76µm) finish thickness
Termination Method: Press-fit or equivalent mechanical attachment

The identified substitutes maintain these core parameters while offering improvements in product status and regulatory compliance.

Parameter Comparison

Parameter	70233-178	70233-178LF	5536513-2	5536514-2
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	TE Connectivity AMP	TE Connectivity AMP
Number of Positions	48	48	48	48
Pitch	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	4	4	4	4
Connector Type	Header, Male Pins	Header, Male Pins	Header, Male Pins	Header, Male Pins
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Press-Fit	Press-Fit	Solder	Press-Fit
Contact Finish	Gold	Gold	Gold	Gold
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant
Voltage Rating	Not specified	Not specified	30V	30V

Engineering Selection Recommendations

70233-178LF (Amphenol ICC): This is the direct manufacturer upgrade path from the obsolete 70233-178. It maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance. The LF designation indicates lead-free processing. This part is the preferred substitute for direct replacement in new designs and legacy system updates.

5536513-2 (TE Connectivity AMP): This Futurebus-style header provides equivalent 48-position, 2.00mm pitch configuration with through-hole mounting. It features solder termination rather than press-fit and includes a board guide feature. ROHS3 compliance is provided. The 30V voltage rating exceeds the original specification. This part is suitable for applications where solder termination is acceptable and Futurebus mechanical compatibility is required.

5536514-2 (TE Connectivity AMP): This alternative from TE Connectivity maintains the 48-position, 2.00mm pitch configuration with press-fit termination matching the original design. It provides Futurebus-style mechanical compatibility, RoHS compliance, and a 30V voltage rating. This part offers the closest functional alignment to the original 70233-178 while providing active product status and modern regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 70233-178LF be used as a direct replacement for the obsolete 70233-178?

A: Yes. The 70233-178LF maintains identical electrical and mechanical parameters including 48 positions, 2.00mm pitch, 4-row configuration, press-fit termination, gold contact finish, 1A current rating, and -55°C to 125°C operating range. The primary differences are active product status and RoHS compliance.

Q: What is the difference between the TE Connectivity substitutes 5536513-2 and 5536514-2?

A: Both parts share the same 48-position, 2.00mm pitch, 4-row through-hole header configuration. The key difference is termination method: 5536513-2 uses solder termination with a board guide feature, while 5536514-2 uses press-fit termination. For applications requiring press-fit mounting, 5536514-2 is the closer match to the original design.

Q: Are there packaging differences between these substitutes?

A: The 70233-178 original part has no specified packaging, while 70233-178LF, 5536513-2, and 5536514-2 are all supplied in tube packaging. This affects handling and storage procedures but does not impact electrical or mechanical performance.

Q: Do all substitutes meet the same flammability and temperature requirements?

A: Yes. All listed substitutes maintain UL94 V-0 material flammability rating and -55°C to 125°C operating temperature range, ensuring compatibility with the original design envelope.

Q: What compliance advantage does 70233-178LF offer over the original 70233-178?

A: The 70233-178LF is RoHS compliant and lead-free, addressing regulatory requirements for new product designs and markets with RoHS mandates. The original 70233-178 is RoHS non-compliant, which may restrict its use in certain applications and regions.

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