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TE Connectivity 644020-8 Equivalent & Substitute Parts
Part Overview
The TE Connectivity 644020-8 is an 8-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG wire. This connector features gold-plated female socket contacts, a closed-end design, and supports both discrete and ribbon cable configurations. The part is classified as obsolete, necessitating identification of active equivalent components for ongoing procurement and design applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Rectangular Receptacle |
| Number of Positions | 8 |
| Pitch | 0.100" (2.54mm) |
| Contact Type | Female Socket |
| Cable Termination Method | IDC |
| Wire Gauge | 24 AWG |
| Contact Finish | Gold |
| Mounting Type | Free Hanging (In-Line), Right Angle |
| Series | MTA-100 |
Substitute Part Grouping Explanation
Substitution of the 644020-8 is based on electrical and mechanical parameter equivalence within the MTA-100 connector series. The substitute part must maintain identical specifications across the following critical parameters:
- 8-position configuration
- 0.100" (2.54mm) pitch spacing
- IDC cable termination compatibility
- 24 AWG wire gauge support
- Gold contact finish
- Female socket contact type
- Closed-end design
- Free hanging and right-angle mounting capability
The identified substitute part 3-644020-8 satisfies all these requirements while offering improved product status and compliance characteristics.
Parameter Comparison
| Parameter | 644020-8 (Main Part) | 3-644020-8 (Substitute) |
|---|---|---|
| Manufacturer | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors |
| Series | MTA-100 | MTA-100 |
| Connector Type | Rectangular Receptacle | Rectangular Receptacle |
| Number of Positions | 8 | 8 |
| Contact Type | Female Socket | Female Socket |
| Pitch | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Number of Rows | 1 | 1 |
| Mounting Type | Free Hanging (In-Line), Right Angle | Free Hanging (In-Line), Right Angle |
| Fastening Type | Locking Ramp | Locking Ramp |
| Cable Termination | IDC | IDC |
| Wire Type | Discrete or Ribbon Cable | Discrete or Ribbon Cable |
| Wire Gauge | 24 AWG | 24 AWG |
| Features | Closed End | Closed End |
| Contact Finish | Gold | Gold |
| Contact Finish Thickness | 30.0µin (0.76µm) | 30.0µin (0.76µm) |
| Color | White | White |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8536.69.8000 | 8536.69.8000 |
Engineering Selection Recommendations
The 3-644020-8 is the direct equivalent substitute for the obsolete 644020-8. Both components are manufactured by TE Connectivity and belong to the MTA-100 series with identical electrical and mechanical specifications. The substitute part provides the following advantages:
Product Status: The 3-644020-8 maintains active product status, ensuring continued availability and manufacturer support, whereas the 644020-8 is classified as obsolete.
Compliance: The 3-644020-8 is RoHS compliant, meeting current environmental and regulatory requirements. The original 644020-8 is RoHS non-compliant.
Inventory Availability: The 3-644020-8 is available in bulk packaging with 866 units in stock, compared to the 644020-8 with 1117 units in limited availability.
All other electrical, mechanical, and environmental parameters remain identical between the two parts, confirming full functional interchangeability for IDC-terminated 8-position rectangular connector applications requiring 24 AWG wire termination.
Frequently Asked Questions (FAQ)
Q: Can the 3-644020-8 be used as a direct replacement for the 644020-8 in existing designs?
A: Yes. The 3-644020-8 is electrically and mechanically identical to the 644020-8 across all specified parameters, including connector type, position count, pitch, contact configuration, termination method, and wire gauge. Direct substitution is supported.
Q: What is the primary difference between these two parts?
A: The primary differences are product status and compliance. The 644020-8 is obsolete and RoHS non-compliant, while the 3-644020-8 is active and RoHS compliant. All functional specifications remain identical.
Q: Are there packaging differences between the 644020-8 and 3-644020-8?
A: Yes. The 644020-8 is supplied in unspecified packaging, while the 3-644020-8 is supplied in bulk packaging. Both contain the same connector component with identical specifications.
Q: Does the RoHS compliance difference affect connector performance?
A: RoHS compliance indicates adherence to environmental and material restrictions on hazardous substances. Both parts maintain identical contact finish specifications (30.0µin gold plating) and electrical performance. The compliance difference reflects manufacturing process standards rather than functional capability.
Q: Can these connectors be used with both discrete and ribbon cable?
A: Yes. Both the 644020-8 and 3-644020-8 support IDC termination for discrete or ribbon cable configurations at 24 AWG wire gauge.
Q: What is the moisture sensitivity level for these connectors?
A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.
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