M80-5121822 Equivalent & Substitute Parts

Part Overview

The M80-5121822 is a Surface Mount rectangular connector header manufactured by Harwin Inc. as part of the Datamate J-Tek series. This 18-position, 2-row connector with 2.00mm pitch is designed for board-to-board or cable applications with shrouded 4-wall construction and threaded fastening. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	M80-5121822
Manufacturer	Harwin Inc.
Series	Datamate J-Tek
Connector Type	Header
Number of Positions	18
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
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 M80-5121842 qualifies as a direct substitute for the M80-5121822 based on the following critical parameters:

Identical connector type, pitch, and position configuration (18-position, 2-row, 2.00mm pitch)
Matching mechanical specifications: shrouded 4-wall construction, surface mount termination, threaded fastening
Identical electrical ratings: 2.2A current capacity, 800V voltage rating
Matching operating temperature range: -55°C ~ 125°C
Same contact material and insulation material specifications
Identical mating interface dimensions and stacking heights

The primary distinction is product status: M80-5121842 is active production, whereas M80-5121822 is obsolete. The substitute part maintains full functional and mechanical compatibility for direct replacement applications.

Parameter Comparison

Parameter	M80-5121822	M80-5121842	Compatibility
Connector Type	Header	Header	Identical
Number of Positions	18	18	Identical
Number of Rows	2	2	Identical
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	Identical
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Identical
Contact Type	Male Pin	Male Pin	Identical
Insulation Height	0.234" (5.95mm)	0.234" (5.95mm)	Identical
Contact Finish - Mating	Gold	Gold	Identical
Contact Finish - Post	Tin-Lead	Tin	Compatible
Current Rating	2.2A	2.2A	Identical
Voltage Rating	800V	800V	Identical
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	Identical
Material Flammability Rating	UL94 V-0	UL94 V-0	Identical
Product Status	Obsolete	Active	Substitute Available
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Improved Compliance

Engineering Selection Recommendations

The M80-5121842 is the direct functional equivalent for M80-5121822 applications. Selection should be based on the following criteria:

For new designs or redesigns: M80-5121842 is the appropriate choice. This part is in active production status, ensuring long-term availability and supply chain stability. The ROHS3 compliance of M80-5121842 aligns with current regulatory requirements, whereas M80-5121822 is RoHS non-compliant.

For legacy system support: M80-5121842 provides full mechanical and electrical compatibility with existing designs using M80-5121822. The contact finish difference (Tin vs. Tin-Lead on the post) does not affect mating interface performance, as the mating contact finish (Gold) remains identical.

Compliance considerations: If RoHS compliance is a design requirement, M80-5121842 is mandatory. The obsolete status of M80-5121822 combined with its non-compliant RoHS rating makes M80-5121842 the only viable long-term solution.

Frequently Asked Questions (FAQ)

Q: Can M80-5121842 be used as a direct replacement for M80-5121822 in existing assemblies?

A: Yes. The M80-5121842 is mechanically and electrically identical to M80-5121822. All critical parameters including pitch, position count, shrouding, current rating, voltage rating, and operating temperature are matched. The parts are interchangeable at the board level.

Q: What is the difference between the contact finishes on these parts?

A: M80-5121822 has Tin-Lead post finish, while M80-5121842 has Tin post finish. Both parts have identical Gold mating contact finish. The post finish difference does not affect connector performance, as the mating interface is the critical contact surface.

Q: Why is M80-5121822 listed as obsolete?

A: M80-5121822 is obsolete due to its RoHS non-compliant status. M80-5121842 is the active production equivalent that meets current ROHS3 compliance requirements.

Q: Are there packaging differences between these parts?

A: M80-5121822 packaging is not specified in the available data. M80-5121842 is supplied in Tube packaging. Confirm packaging requirements with your procurement specification.

Q: What is the mated stacking height for these connectors?

A: Both parts support the following mated stacking heights: 7.55mm, 7.95mm, 10.1mm, 11.1mm, 13.65mm, and 15.1mm. Selection depends on your specific application requirements.

Q: Are these parts suitable for high-temperature applications?

A: Yes. Both M80-5121822 and M80-5121842 are rated for operating temperatures from -55°C to 125°C, making them suitable for industrial and automotive applications within this temperature range.

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