CR2032 Coin Cell Battery Holder SMD

CR2032 Coin Cell Battery Holder SMD is a high-quality, surface-mount component designed to provide a secure and reliable power connection for 3V lithium coin cell batteries. This compact holder features a low-profile design, which makes it an excellent choice for modern, space-constrained electronic devices. Consequently, engineers often utilize this holder in slim wearables and portable gadgets where every millimeter of PCB real estate counts. The gold-plated or nickel-plated contacts ensure low contact resistance and prevent oxidation over long periods of use. Furthermore, the robust phosphoric bronze construction maintains constant spring tension to keep the battery firmly in place even under moderate vibration. Therefore, you should integrate this SMD holder into your next production run to ensure a professional and durable battery interface for your customers.

Key Features:

• Surface Mount Design: The SMD tabs allow for automated SMT assembly, which significantly reduces manufacturing time and costs compared to through-hole versions.
• Low Profile: The ultra-thin vertical height helps maintain a sleek product form factor, making it ideal for compact consumer electronics.
• High-Temperature Resistance: Constructed from heat-resistant plastics like LCP, the holder withstands the high temperatures of lead-free reflow soldering processes.
• Secure Battery Retention: The spring-loaded top contact provides a tight grip, ensuring the battery does not shift or lose connection during movement.
• Polarity Protection: The physical housing design helps prevent the accidental reverse insertion of the coin cell, protecting sensitive downstream circuitry.

Technical Specifications:

• Compatible Battery: CR2032, DL2032, BR2032 (20 mm diameter)
• Maximum Voltage: 500 V_AC (Insulation voltage)
• Contact Resistance: ≤ 30 mΩ
• Insulation Resistance: ≥ 1000 MΩ
• Current Rating: 0.5 A to 1.0 A
• Operating Temperature Range: −40°C to +105°C

Mechanical Specifications:

• Base Material: Glass-filled Liquid Crystal Polymer (LCP)
• Contact Material: Nickel plating for corrosion resistance
• Plating: Nickel plating for corrosion resistance
• Flammability Rating: UL 94 V-0

Dimensions:

• Overall Length: ≈ 28.5 mm (including SMD tabs)
• Body Diameter: ≈ 22.0 mm
• Total Height: ≈ 5.0 mm to 6.0 mm
• Weight: ≈ 1.2 g

Pinout and Wiring:

• Positive (+) Terminal: The large metal frame or top spring contact typically connects to the positive side of the battery. Solder this tab to the VCC pad on your PCB.
• Negative (−) Terminal: The center pad located at the base of the holder contacts the flat bottom of the CR2032. Solder this to your circuit ground (GND).
• Soldering Note: Apply a small amount of solder paste to both the side tabs and the central pad to ensure a mechanically strong bond during reflow.

Datasheet Reference:

• Download CR2032 SMD Holder Datasheet

Commonly Used in:

• Computer Motherboards: Providing backup power to the CMOS RAM to maintain BIOS settings and the system clock.
• Handheld Remote Controls: Powering RF and IR transmitters in car key fobs and home automation controllers.
• Medical Devices: Serving as the primary power source for digital thermometers and glucose meters.

Applications:

• Real-Time Clocks (RTC): Maintaining accurate time in industrial controllers and smart meters during power outages.
• Data Loggers: Powering low-energy sensors that record environmental data over long durations.
• Wearable Tech: Integrating into fitness trackers and smart jewelry where weight and size are critical constraints.

Equivalent Models:

• Keystone 1058: A high-end surface mount holder with gold-plated contacts for maximum reliability.
• Linx Technologies BAT-HLD-001-SMT: A functionally similar model offering easy battery replacement and compact dimensions.
• Harwin S8421-45R: However, this model may feature different tab spacing, so always check the PCB footprint before substitution.

Package Includes:

• 1 x CR2032 Coin Cell Battery Holder SMD