M80-4121001 Equivalent & Substitute Parts

Part Overview

The M80-4121001 is a 10-position receptacle connector from Harwin Inc.'s Datamate J-Tek series, designed for surface mount applications with 0.079" (2.00mm) pitch. This connector features gold-plated mating contacts and tin-lead plated posts, operating across -55°C to 125°C with a 120V rating. The part is currently obsolete, making identification of active equivalent models essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer	Harwin Inc.
Series	Datamate J-Tek
Connector Type	Receptacle
Number of Positions	10
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Mounting Type	Surface Mount
Contact Type	Female Socket
Insulation Material	Polyphenylene Sulfide (PPS), Glass Filled
Operating Temperature	-55°C ~ 125°C
Voltage Rating	120V
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

The M80-4121042 qualifies as a direct substitute for the M80-4121001 based on the following critical parameters:

Identical connector type, position count, and pitch (0.079" / 2.00mm)
Matching row configuration (2 rows) and row spacing
Identical mounting type (Surface Mount) and termination method (Solder)
Matching contact geometry and material (Beryllium Copper, Circular)
Identical mating contact finish specification (Gold, 12.0µin / 0.30µm)
Equivalent operating temperature range (-55°C ~ 125°C)
Matching voltage rating (120V) and flammability rating (UL94 V-0)
Identical insulation material and color (PPS Glass Filled, Black)
Same mated stacking heights (7.7mm, 7.95mm)

The primary distinction is the post contact finish: M80-4121001 uses tin-lead plating while M80-4121042 uses tin plating. Both maintain equivalent post contact finish thickness (137.8µin / 4.60µm).

Parameter Comparison

Parameter	M80-4121001	M80-4121042
Manufacturer	Harwin Inc.	Harwin Inc.
Series	Datamate J-Tek	Datamate J-Tek
Connector Type	Receptacle	Receptacle
Number of Positions	10	10
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Contact Type	Female Socket	Female Socket
Contact Finish - Mating	Gold, 12.0µin (0.30µm)	Gold, 12.0µin (0.30µm)
Contact Finish - Post	Tin-Lead	Tin
Contact Finish Thickness - Post	137.8µin (4.60µm)	137.8µin (4.60µm)
Insulation Material	Polyphenylene Sulfide (PPS), Glass Filled	Polyphenylene Sulfide (PPS), Glass Filled
Insulation Color	Black	Black
Insulation Height	0.220" (5.60mm)	0.220" (5.60mm)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Voltage Rating	120V	120V
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Material	Beryllium Copper	Beryllium Copper
Contact Shape	Circular	Circular
Mated Stacking Heights	7.7mm, 7.95mm	7.7mm, 7.95mm
Features	Mating Flange, Polarizing Key	Mating Flange, Polarizing Key
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging	-	Tube

Engineering Selection Recommendations

The M80-4121042 is the direct active equivalent for the obsolete M80-4121001. Both connectors maintain identical electrical and mechanical specifications across all critical parameters including pitch, position count, contact geometry, operating temperature, and voltage rating.

The M80-4121042 offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, the M80-4121042 achieves ROHS3 compliance, whereas the M80-4121001 is RoHS non-compliant. This compliance improvement supports regulatory requirements in automotive, general purpose, and military applications.

The post contact finish difference (tin-lead versus tin) reflects modern manufacturing standards. The tin plating in M80-4121042 maintains equivalent contact finish thickness and electrical performance while aligning with contemporary lead-free soldering practices.

Frequently Asked Questions (FAQ)

Q: Are M80-4121001 and M80-4121042 mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.079" / 2.00mm), position count (10), row configuration (2 rows), mounting type (Surface Mount), and mated stacking heights (7.7mm, 7.95mm). They are direct mechanical replacements.

Q: What is the difference in post contact finish between these parts?

A: M80-4121001 uses tin-lead plating while M80-4121042 uses tin plating. Both maintain the same contact finish thickness (137.8µin / 4.60µm) and provide equivalent electrical performance. The tin plating in M80-4121042 reflects current manufacturing standards.

Q: Does the RoHS compliance difference affect substitution?

A: The M80-4121042 is ROHS3 compliant while M80-4121001 is RoHS non-compliant. For applications subject to RoHS regulations, M80-4121042 is the required choice. For legacy systems without RoHS requirements, both parts are functionally equivalent.

Q: Are the mating contact specifications identical?

A: Yes. Both connectors feature gold-plated mating contacts with identical finish thickness (12.0µin / 0.30µm), ensuring equivalent contact performance and reliability.

Q: What packaging is available for M80-4121042?

A: M80-4121042 is supplied in tube packaging. M80-4121001 packaging information is not specified in available documentation.

Q: Can these connectors be used in automotive and military applications?

A: Yes. Both connectors are rated for automotive, general purpose, and military applications with UL94 V-0 flammability rating and -55°C to 125°C operating temperature range.

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