M22-2531746 Equivalent & Substitute Parts

Part Overview

The M22-2531746 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle board-to-board applications. This 17-position connector operates at 2.00mm pitch with male pin contacts and solder termination. The part is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

M22-2531746
Harwin Inc.In Stock: 1000M22-2531746 Datasheet
M22-2531746
Current Part
M22-2531705
Harwin Inc.In Stock: 714M22-2531705 Datasheet
M22-2531705
MFR Recommended

Key Parameters

Parameter Value
Manufacturer Part Number M22-2531746
Manufacturer Harwin Inc.
Category Rectangular Connectors
Series M22
Connector Type Header, Cuttable
Number of Positions 17
Pitch - Mating 0.079" (2.00mm)
Mounting Type Through Hole, Right Angle
Contact Type Male Pin
Termination Solder
Operating Temperature -40°C ~ 105°C
Current Rating 1A per Contact
Product Status Obsolete
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the M22-2531746 is determined by the following critical parameters:

  • Pitch - Mating: 0.079" (2.00mm)
  • Number of Positions: 17
  • Mounting Type: Through Hole, Right Angle
  • Contact Type: Male Pin
  • Termination: Solder
  • Series: M22
  • Operating Temperature Range: -40°C ~ 105°C
  • Current Rating: 1A per Contact

The M22-2531705 qualifies as a direct substitute. Both parts share identical mechanical and electrical specifications within the M22 series. The primary distinction is product status: M22-2531746 is obsolete while M22-2531705 is active. Contact finish differs (tin versus gold on mating surface), which does not affect functional compatibility for standard applications.

Parameter Comparison

Parameter M22-2531746 M22-2531705 Match
Manufacturer Harwin Inc. Harwin Inc. Yes
Series M22 M22 Yes
Number of Positions 17 17 Yes
Pitch - Mating 0.079" (2.00mm) 0.079" (2.00mm) Yes
Mounting Type Through Hole, Right Angle Through Hole, Right Angle Yes
Contact Type Male Pin Male Pin Yes
Termination Solder Solder Yes
Contact Length - Mating 0.138" (4.60mm) 0.138" (4.60mm) Yes
Contact Length - Post 0.094" (2.40mm) 0.094" (2.40mm) Yes
Insulation Height 0.079" (2.00mm) 0.079" (2.00mm) Yes
Contact Shape Square Square Yes
Contact Finish - Mating Tin Gold No
Contact Material Phosphor Bronze Phosphor Bronze Yes
Insulation Material Polyamide (PA6T), Nylon 6T Polyamide (PA6T), Nylon 6T Yes
Operating Temperature -40°C ~ 105°C -40°C ~ 105°C Yes
Current Rating 1A per Contact 1A per Contact Yes
Material Flammability Rating UL94 V-0 UL94 V-0 Yes
RoHS Status ROHS3 Compliant ROHS3 Compliant Yes
MSL Rating 1 (Unlimited) 1 (Unlimited) Yes
REACH Status REACH Unaffected REACH Unaffected Yes
Product Status Obsolete Active No

Engineering Selection Recommendations

The M22-2531705 is the direct active equivalent for the obsolete M22-2531746. Both parts maintain identical mechanical dimensions, electrical ratings, and environmental specifications. The M22-2531705 carries active product status with full manufacturer support and availability.

Both parts satisfy ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The contact finish difference (tin versus gold) does not affect electrical performance for standard applications within the specified current and temperature ranges.

For new designs or production transitions from M22-2531746, the M22-2531705 provides seamless functional replacement without design modification.

Frequently Asked Questions (FAQ)

Q: Can M22-2531705 replace M22-2531746 in existing designs?

A: Yes. Both connectors share identical pitch (2.00mm), position count (17), mounting configuration (through-hole right-angle), contact type (male pin), and electrical ratings (1A per contact). No PCB layout or mating connector changes are required.

Q: What is the difference between tin and gold contact finishes?

A: Contact finish is specified as tin on M22-2531746 and gold on M22-2531705. Both finishes provide adequate conductivity and corrosion resistance for the stated current and temperature operating ranges. Finish selection does not affect mechanical compatibility or electrical performance in standard applications.

Q: Are both parts RoHS compliant?

A: Yes. Both M22-2531746 and M22-2531705 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: Why is M22-2531746 listed as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The M22-2531705 remains in active production and is the recommended part for new procurement and design implementation.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across -40°C to 105°C, suitable for industrial and commercial applications within this thermal envelope.

Q: Are these connectors cuttable?

A: Yes. Both M22-2531746 and M22-2531705 are classified as cuttable headers, allowing position reduction through mechanical separation when required by application design.

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