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TE Connectivity 521050-1 Quick Connect Female Crimp Connector Equivalent & Substitute Parts
Part Overview
The TE Connectivity 521050-1 is a 0.250" (6.35mm) Quick Connect Female 18-22 AWG Crimp Connector with full insulation, designed for free-hanging in-line and right-angle mounting applications. This connector is part of the Ultrapod series and features a brass contact with angled 90° flag terminal configuration.
The 521050-1 carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to ensure continued availability and supply chain continuity for applications currently utilizing this connector.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Tab Width | 0.250" (6.35mm) |
| Tab Thickness | 0.032" (0.81mm) |
| Wire Gauge | 18-22 AWG |
| Gender | Female |
| Terminal Type | Angled - 90°, Flag |
| Insulation Type | Fully Insulated |
| Insulation Diameter | 0.050" ~ 0.100" (1.27mm ~ 2.54mm) |
| Mounting Type | Free Hanging (In-Line), Right Angle |
| Termination Method | Crimp |
| Contact Material | Brass |
| Series | Ultrapod |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the 521050-1 is based on electrical and mechanical parameter equivalence within the Ultrapod series. The substitute part must maintain identical specifications across the following critical parameters:
- Tab width and thickness (0.250" × 0.032")
- Wire gauge compatibility (18-22 AWG)
- Terminal gender and configuration (Female, Angled 90° Flag)
- Insulation type and diameter range (Fully Insulated, 0.050" ~ 0.100")
- Mounting orientation (Free Hanging In-Line, Right Angle)
- Termination method (Crimp)
- Contact material (Brass)
- Base product number (521050)
The 521050-2 meets all these criteria and is classified as a manufacturer-recommended substitute. The primary distinction between these parts is product status and packaging configuration.
Parameter Comparison
| Parameter | 521050-1 (Main Part) | 521050-2 (Substitute) | Match Status |
|---|---|---|---|
| Tab Width | 0.250" (6.35mm) | 0.250" (6.35mm) | Identical |
| Tab Thickness | 0.032" (0.81mm) | 0.032" (0.81mm) | Identical |
| Wire Gauge | 18-22 AWG | 18-22 AWG | Identical |
| Gender | Female | Female | Identical |
| Terminal Type | Angled - 90°, Flag | Angled - 90°, Flag | Identical |
| Insulation Type | Fully Insulated | Fully Insulated | Identical |
| Insulation Diameter | 0.050" ~ 0.100" (1.27mm ~ 2.54mm) | 0.050" ~ 0.100" (1.27mm ~ 2.54mm) | Identical |
| Mounting Type | Free Hanging (In-Line), Right Angle | Free Hanging (In-Line), Right Angle | Identical |
| Termination Method | Crimp | Crimp | Identical |
| Contact Material | Brass | Brass | Identical |
| Series | Ultrapod | Ultrapod | Identical |
| Product Status | Obsolete | Active | Different |
| Packaging | Not specified | Cut Tape (CT) | Different |
| Contact Finish | Not specified | Tin | Different |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Both Compliant |
Engineering Selection Recommendations
The 521050-2 is the manufacturer-recommended substitute for the obsolete 521050-1. Both connectors are fully compliant with RoHS regulations and share identical electrical and mechanical specifications across all critical parameters.
The 521050-1 is classified as Obsolete, which restricts its availability for new procurement. The 521050-2 maintains Active product status, ensuring continued supply chain access and manufacturer support.
The 521050-2 is supplied in Cut Tape (CT) packaging, which differs from the unspecified packaging of the 521050-1. This packaging format is standard for component distribution and does not affect connector functionality or performance.
Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.
Frequently Asked Questions (FAQ)
Q: Are the 521050-1 and 521050-2 electrically interchangeable?
A: Yes. Both connectors feature identical tab width (0.250"), tab thickness (0.032"), wire gauge rating (18-22 AWG), terminal configuration (Female, Angled 90° Flag), and contact material (Brass). They are electrically and mechanically interchangeable.
Q: What is the primary reason for substituting the 521050-1?
A: The 521050-1 carries an Obsolete product status, limiting availability. The 521050-2 is an Active product with identical specifications and serves as the manufacturer-recommended replacement.
Q: Does the Cut Tape (CT) packaging of the 521050-2 affect compatibility?
A: No. Packaging format does not affect connector performance or compatibility. Cut Tape packaging is a standard distribution method and does not alter the electrical or mechanical properties of the connector.
Q: Are both parts RoHS compliant?
A: Yes. The 521050-1 is RoHS Compliant, and the 521050-2 is ROHS3 Compliant. Both meet current regulatory requirements for hazardous substance restrictions.
Q: What is the wire gauge range for these connectors?
A: Both the 521050-1 and 521050-2 accommodate wire gauges from 18 to 22 AWG, with an insulation diameter range of 0.050" to 0.100" (1.27mm to 2.54mm).
Q: Can these connectors be used in right-angle applications?
A: Yes. Both connectors support right-angle mounting configuration as part of their Free Hanging (In-Line), Right Angle mounting type specification.
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