Battery Holder 23A

Description

23A Battery Holder – Key Specifications

Battery Type: 23A (12V alkaline battery, also called MN21, A23, V23GA)
Mounting: PCB mounted (through-hole or surface mount variants)

1. Physical Dimensions

• Battery Compartment Size: ~10.3mm diameter × 28.5mm length

• PCB Footprint: ~12mm × 32mm (typical)

• Mounting Holes: 2× M2 or M2.5 (varies by model)

• Material: ABS plastic or Nylon (flame-retardant)

• Contacts: Spring-loaded negative terminal, metal clip positive terminal

2. Electrical Characteristics

• Rated Voltage: 12V (matches 23A battery)

• Current Rating: 1–2A (max momentary, limited by battery)

• Contact Resistance: <50mΩ

• Insulation Resistance: >100MΩ

3. Battery Specifications (23A)

• Nominal Voltage: 12V

• Chemistry: Alkaline (most common)

• Capacity: ~55mAh (varies by brand)

• Dimensions: 10.3mm diameter × 28.5mm height

• Typical Use: Remote controls, key fobs, small electronics

4. PCB Layout Recommendations

• Pad Size: 2–3mm diameter for mounting pins

• Clearance: ≥2mm around holder for battery insertion

• Orientation: Label “+” and “-” clearly on silkscreen

4. Applications

• RF remotes (car alarms, garage openers)

• Key fobs

• Small sensor nodes

• Backup power for RTC/EEPROM