M80-8243442 Equivalent & Substitute Parts

Part Overview

The M80-8243442 is a rectangular connector header manufactured by Harwin Inc., part of the Datamate L-Tek series. This through-hole mounted connector features 34 positions arranged in 2 rows with 0.079" (2.00mm) pitch and shrouded 4-wall design. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	M80-8243442
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Series	Datamate L-Tek
Connector Type	Header
Number of Positions	34
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Contact Type	Male Pin
Current Rating	2.2A
Voltage Rating	800V
Operating Temperature	-55°C ~ 125°C
Product Status	Obsolete

Substitute Part Grouping Explanation

The M80-7533442 qualifies as a direct substitute for the M80-8243442 based on the following critical parameters:

Connector Configuration: Both parts maintain identical 34-position, 2-row arrangement with 0.079" (2.00mm) pitch and row spacing
Electrical Ratings: Current rating of 2.2A and voltage rating of 800V are equivalent
Mechanical Interface: Both feature shrouded 4-wall design, through-hole mounting, and latch lock fastening
Contact System: Male pin contacts with circular shape, phosphor bronze material, and identical gold/tin finish specifications
Environmental Performance: Operating temperature range of -55°C ~ 125°C and UL94 V-0 flammability rating match
Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status

The primary distinction is product status: M80-7533442 is active production, whereas M80-8243442 is obsolete. Secondary differences in insulation material (Polyphenylene Sulfide glass-filled versus Polyamide) and contact post length (0.177" versus 0.370") do not affect functional substitution within the specified electrical and mechanical parameters.

Parameter Comparison

Parameter	M80-8243442 (Main Part)	M80-7533442 (Substitute)
Manufacturer	Harwin Inc.	Harwin Inc.
Series	Datamate L-Tek	Datamate L-Tek
Product Status	Obsolete	Active
Number of Positions	34	34
Number of Rows	2	2
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole
Contact Type	Male Pin	Male Pin
Current Rating	2.2A	2.2A per Contact
Voltage Rating	800V	800V
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Contact Finish - Mating	Gold	Gold
Contact Finish - Post	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Mated Stacking Heights	7.23mm, 7.85mm, 10.2mm, 14.61mm	7.23mm, 7.85mm, 10.2mm, 14.61mm
Contact Length - Post	0.370" (9.40mm)	0.177" (4.50mm)
Insulation Material	Polyamide (PA46), Nylon 4/6	Polyphenylene Sulfide (PPS), Glass Filled
Insulation Height	0.213" (5.40mm)	0.219" (5.56mm)

Engineering Selection Recommendations

The M80-7533442 is the appropriate substitute for the obsolete M80-8243442. Selection is based on:

Product Availability: M80-7533442 maintains active production status with 730 units in stock, ensuring supply chain continuity
Functional Equivalence: All critical electrical and mechanical parameters remain unchanged, preserving circuit board compatibility and signal integrity
Regulatory Compliance: Both parts maintain identical ROHS3 and REACH compliance certifications, satisfying environmental and regulatory requirements
Thermal Performance: Identical operating temperature range supports equivalent thermal management in target applications

The substitute part is suitable for direct replacement in new designs and legacy system support where M80-8243442 procurement is no longer feasible.

Frequently Asked Questions (FAQ)

Q: Can M80-7533442 be used as a direct replacement for M80-8243442 on existing circuit boards?

A: Yes. Both parts share identical connector configuration, pitch, row spacing, shrouding, and electrical ratings. The through-hole mounting footprint and contact arrangement are equivalent.

Q: What is the significance of the different contact post lengths?

A: M80-8243442 features 0.370" (9.40mm) post length, while M80-7533442 features 0.177" (4.50mm) post length. This difference affects solder joint depth and PCB hole engagement. Verify PCB design specifications to confirm compatibility with the shorter post length of the substitute part.

Q: Are there differences in insulation material between the two parts?

A: Yes. M80-8243442 uses Polyamide (PA46) Nylon 4/6, while M80-7533442 uses Polyphenylene Sulfide (PPS) glass-filled material. Both materials meet UL94 V-0 flammability requirements and operate across the identical temperature range. The PPS material in the substitute part provides enhanced chemical resistance and dimensional stability.

Q: Do both parts support the same mated stacking heights?

A: Yes. Both M80-8243442 and M80-7533442 support identical mated stacking heights of 7.23mm, 7.85mm, 10.2mm, and 14.61mm, ensuring compatibility with standard connector mating configurations.

Q: What is the packaging difference between these parts?

A: M80-8243442 packaging is not specified in available documentation. M80-7533442 is supplied in tube packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.

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