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Equivalent & Substitute Parts for M22-2032146
Part Overview
The M22-2032146 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle board-to-board applications with 21 positions at 2.00mm pitch. This connector features male pins with tin-plated phosphor bronze contacts, solder termination, and push-pull fastening. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | M22-2032146 |
| Manufacturer | Harwin Inc. |
| Category | Rectangular Connectors |
| Connector Type | Header, Cuttable |
| Contact Type | Male Pin |
| Number of Positions | 21 |
| Pitch - Mating | 0.079" (2.00mm) |
| Mounting Type | Through Hole, Right Angle |
| Termination | Solder |
| Fastening Type | Push-Pull |
| Contact Length - Mating | 0.138" (4.60mm) |
| Contact Length - Post | 0.118" (3.00mm) |
| Insulation Height | 0.079" (2.00mm) |
| Contact Shape | Square |
| Contact Finish - Mating | Tin |
| Contact Material | Phosphor Bronze |
| Insulation Material | Polyamide (PA6T), Nylon 6T |
| Operating Temperature | -55°C ~ 105°C |
| Current Rating | 1A per Contact |
| Material Flammability Rating | UL94 V-0 |
| Insulation Color | Black |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the M22-2032146 is determined by the following critical parameters:
- Pitch - Mating: 0.079" (2.00mm) — all substitutes must match this spacing
- Number of Positions: 21 positions — primary functional requirement
- Mounting Type: Through Hole, Right Angle — mechanical compatibility
- Contact Type: Male Pin — electrical interface requirement
- Termination: Solder — assembly method compatibility
- Fastening Type: Push-Pull — connector engagement mechanism
- Insulation Height: 0.079" (2.00mm) — board clearance requirement
Substitutes are grouped into two categories:
Category 1: Direct Harwin Series Equivalent
- M22-2032205: Active product with 22 positions (one additional position) in the same M22 series, maintaining identical pitch, mounting type, and termination method.
Category 2: Cross-Manufacturer Samtec TMM Series
- TMM-121-01-F-S-RA and variants (TMM-121-01-F-S-RA-001 through TMM-121-01-F-S-RA-008): Active products with 21 positions, matching pitch, mounting type, and termination. These connectors feature enhanced specifications including higher current rating and extended operating temperature range.
Parameter Comparison
| Parameter | M22-2032146 (Main) | M22-2032205 | TMM-121-01-F-S-RA (and variants) |
|---|---|---|---|
| Manufacturer | Harwin Inc. | Harwin Inc. | Samtec Inc. |
| Product Status | Obsolete | Active | Active |
| Number of Positions | 21 | 22 | 21 |
| Pitch - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle |
| Contact Type | Male Pin | Male Pin | Male Pin |
| Termination | Solder | Solder | Solder |
| Fastening Type | Push-Pull | Push-Pull | Push-Pull |
| Contact Length - Mating | 0.138" (4.60mm) | 0.138" (4.60mm) | 0.126" (3.20mm) |
| Contact Length - Post | 0.118" (3.00mm) | 0.118" (3.00mm) | 0.120" (3.05mm) |
| Insulation Height | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Contact Shape | Square | Square | Square |
| Contact Finish - Mating | Tin | Gold | Gold |
| Contact Material | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze |
| Insulation Material | Polyamide (PA6T), Nylon 6T | Polyamide (PA6T), Nylon 6T | Liquid Crystal Polymer (LCP) |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 125°C |
| Current Rating | 1A per Contact | 1A per Contact | 3.2A per Contact |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | Not specified |
| Insulation Color | Black | Black | Black |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Series | M22 | M22 | TMM |
Engineering Selection Recommendations
For Harwin Series Continuity: M22-2032205 is the manufacturer-recommended equivalent within the Harwin M22 series. This part maintains active product status and full compliance with ROHS3 and UL94 V-0 standards. The primary difference is one additional position (22 vs. 21), which requires PCB layout modification. Contact finish upgrades from tin to gold, improving corrosion resistance and contact reliability. This option is suitable when maintaining the Harwin M22 ecosystem is a design priority.
For Cross-Manufacturer Substitution: The Samtec TMM-121-01-F-S-RA series (including variants TMM-121-01-F-S-RA-001 through TMM-121-01-F-S-RA-008) provides direct 21-position equivalents with active product status and ROHS3 compliance. These connectors offer enhanced electrical performance with 3.2A per contact rating versus 1A, extended operating temperature range (-55°C to 125°C), and improved insulation material (Liquid Crystal Polymer). Contact length specifications differ slightly (0.126" mating vs. 0.138" for the original), requiring mechanical clearance verification. These parts are suitable for applications requiring higher current capacity or extended temperature operation.
Compliance Considerations: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage practices. The M22-2032205 retains the UL94 V-0 flammability rating; TMM series flammability rating is not specified in available data.
Frequently Asked Questions (FAQ)
Q: Can M22-2032205 directly replace M22-2032146 without PCB modification? A: No. M22-2032205 has 22 positions versus 21 for the original part. PCB layout modification is required to accommodate the additional position. The pitch and mounting footprint remain identical.
Q: What is the primary difference between tin and gold contact finishes? A: Gold plating provides superior corrosion resistance and lower contact resistance compared to tin. Both M22-2032205 and TMM-121 series use gold mating contacts, improving long-term reliability and signal integrity.
Q: Are Samtec TMM-121 connectors mechanically compatible with M22-2032146 mating interfaces? A: Yes, for pitch and mounting type. Both use 2.00mm pitch, through-hole right-angle mounting, and push-pull fastening. However, contact length specifications differ slightly (0.126" vs. 0.138" mating length), requiring verification of mating connector clearance and engagement depth.
Q: What is the significance of the higher current rating in TMM-121 connectors? A: TMM-121 connectors are rated for 3.2A per contact versus 1A for M22-2032146. This higher rating accommodates applications with greater power delivery requirements without thermal stress on individual contacts.
Q: Do the TMM-121 variants (001-008) have functional differences? A: The base TMM-121-01-F-S-RA has all 21 positions loaded. Variants 001-008 have 20 positions loaded, with one position unloaded. Selection depends on specific application requirements for position count.
Q: What is the operating temperature difference, and when does it matter? A: M22-2032146 and M22-2032205 operate from -55°C to 105°C. TMM-121 series extends to 125°C. The extended range is relevant for high-temperature industrial, automotive, or aerospace applications.
Q: Are all substitute parts available in equivalent packaging? A: M22-2032205 is available in bulk packaging. TMM-121 series packaging is not specified in available data. Confirm packaging availability with suppliers for production requirements.
Q: What insulation material difference exists between substitutes? A: M22-2032146 and M22-2032205 use Polyamide (PA6T) Nylon 6T. TMM-121 series uses Liquid Crystal Polymer (LCP), which offers superior dimensional stability and chemical resistance at elevated temperatures.
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