Overview
The Keystone Electronics 5202 is a single-cell cylindrical battery contact, configured as a coil spring (negative contact) suitable for nominal cell sizes including A, AA, CR2 and similar (17 mm to 19 mm diameter). It is designed for use in moulded battery compartments or PCB-mounted battery holder assemblies where reliable contact, spring tension, and low contact resistance are required. The spring construction allows for tolerance to variations in battery length and ensures a stable electrical and mechanical connection. The contact is nickel-plated steel, supporting solder tab or PCB mounting for reliable integration. This makes it a cost-effective and dependable solution for compact battery-powered electronics.
Key Features & Specifications
| Parameter | Value / Characteristic |
|---|---|
| Manufacturer | Keystone Electronics |
| Manufacturer Part Number | 5202 |
| Battery Cell Sizes Supported | A, AA, CR2 (17 mm–19 mm diameter) |
| Contact Type | Spring (coil) negative battery contact |
| Contact Material | Steel (0.020 in thick steel plate) |
| Contact Plating | Nickel-plated contacts |
| Mounting Style | Solder tab / PCB mounting (moulded case) |
| Product Category | Cylindrical Battery Contacts / Clips / Springs |
| Compliance | RoHS compliant |
| Typical Usage | Single-cell cylindrical battery compartment |
Applications & Use-Cases
The 5202 battery contact is well suited for a variety of portable and battery-powered applications where a single cylindrical cell is used, and where manual battery changes or accessible compartments exist. Typical use-cases include:
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Portable instrumentation, handheld devices or remote sensors using A or AA size cells.
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Consumer electronics such as remote controls, portable meters or battery-powered gadgets with moulded battery compartments.
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Embedded systems or IoT modules where a cylindrical cell (CR2 or similar) is used and space is constrained, but reliable contact is needed.
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Devices requiring a spring-type negative contact to accommodate variation in cell length or to ensure proper pressure for good electrical connection.
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Battery holder assemblies in lower-cost equipment where the negative spring contact is mounted inside the case or on the PCB.
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