4-521755-2
TE Connectivity AMP Connectors
Board Guide2-40°C~120°C
Ref. price$0.5900
Lead time on requestGet quote ›
TE Connectivity AMP Connectors 4521 Series
4 variants · TE Connectivity AMP Connectors
About the TE Connectivity AMP Connectors 4521 Series
The TE Connectivity AMP Connectors 4521 Series series groups 4 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common applications of General Purpose, connector type of Header and contact length - mating of -. Variants differ by contact finish - mating, contact finish - post and contact finish thickness - mating, so you can match the exact contact finish - mating your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current TE Connectivity AMP Connectors 4521 Series variants and discontinued ones from a single page.
Select a variant by
- Contact finish - mating
- Silver · Tin
- Contact finish - post
- Silver · Tin
- Contact finish thickness - mating
- 78.7µin (2.00µm) · 150.0µin (3.81µm)
- Contact finish thickness - post
- 78.7µin (2.00µm) · 150.0µin (3.81µm)
- Contact length - post
- - · 0.138\" (3.50mm)
- Features
- Board Guide · Board Guide, Glow Wire Compliant · Glow Wire Compliant
- Insulation height
- 0.504\" (12.80mm) · 0.658\" (16.71mm)
- Mounting type
- Through Hole · Through Hole, Right Angle
Shared specifications
- Applications
- General Purpose
- Connector type
- Header
- Contact length - mating
- -
- Contact material
- Brass
- Contact shape
- Rectangular
- Current rating
- -
- Fastening type
- Latch Holder
- Gender
- Tab
- Ingress protection
- -
- Insulation color
- -
- Insulation material
- Polyamide (PA66), Nylon 6/6
- Mated stacking heights
- -
Variant comparison
| Parameter | 4-521755-2 | 4-521383-4 | 4-521385-2 | 4-521385-4 |
|---|---|---|---|---|
| Contact finish - mating | Silver | Tin | Tin | Tin |
| Contact finish - post | Silver | Tin | Tin | Tin |
| Contact finish thickness - mating | 78.7µin (2.00µm) | 150.0µin (3.81µm) | 150.0µin (3.81µm) | 150.0µin (3.81µm) |
| Contact finish thickness - post | 78.7µin (2.00µm) | 150.0µin (3.81µm) | 150.0µin (3.81µm) | 150.0µin (3.81µm) |
| Contact length - post | 0.138\" (3.50mm) | 0.138\" (3.50mm) | - | - |
| Features | Board Guide | Board Guide, Glow Wire Compliant | Glow Wire Compliant | Glow Wire Compliant |
| Insulation height | 0.504\" (12.80mm) | 0.504\" (12.80mm) | 0.658\" (16.71mm) | 0.658\" (16.71mm) |
| Mounting type | Through Hole | Through Hole | Through Hole, Right Angle | Through Hole, Right Angle |
Request a quote on any TE Connectivity AMP Connectors 4521 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.
Frequently asked questions
- How do the TE Connectivity AMP Connectors 4521 Series variants differ?
- TE Connectivity AMP Connectors 4521 Series part numbers differ by contact finish - mating, contact finish - post, contact finish thickness - mating and contact finish thickness - post. Use the selection guide above to pick by contact finish - mating.
- How many TE Connectivity AMP Connectors 4521 Series part numbers are listed?
- 4 TE Connectivity AMP Connectors 4521 Series part numbers are listed, each with specifications and a datasheet where available.
- How do I get pricing and lead time for TE Connectivity AMP Connectors 4521 Series?
- Request a quote (RFQ) for any TE Connectivity AMP Connectors 4521 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.