47000µF 25V Snap-In Aluminum Electrolytic Capacitor – 105°C Low ESR, PCB Mount

The 47000µF 25V Snap-In aluminum electrolytic capacitor is a large-capacitance, low-ESR filter capacitor built for switching power supplies, variable-frequency drives, UPS systems, and DC-bus smoothing. Rated for 105°C continuous operation with a long-life electrolyte, it uses a snap-in (pin-in) terminal profile that plugs directly into a PCB through-hole footprint — no screw terminals, no SMD reflow.

Available in 16V / 25V / 35V ratings within the same 47000µF family, this part is positioned for engineers who need high ripple current, stable ESR over temperature, and automated wave-solder assembly.

Key Specifications

Parameter	Value
Capacitance	47000 µF (47 mF)
Rated Voltage	16V / 25V / 35V DC (select per part)
Capacitance Tolerance	±20% (M)
Type	Aluminum Electrolytic, non-solid, polarized
Terminal Style	Snap-In (pin-in, through-hole)
Mounting	PCB through-hole, wave solder
Operating Temp	-40°C to +105°C
ESR	Low ESR design (typical ~14–20 mΩ @ 120Hz, varies by voltage/case)
Ripple Current	High ripple rated (see datasheet table per voltage)
Load Life	3000 h @ 105°C with rated ripple (typical)
Case	Aluminum can, insulating sleeve, safety vent on top
Compliance	RoHS compliant

Mechanical & Footprint

• Form factor: Cylindrical can, snap-in pins (typically 2 main + 1 keying/center pin optional)
• Pin pitch: 10 mm standard snap-in pitch (verify against chosen case size)
• Can diameter: ~35 mm (16V/25V typical), larger for 35V high-ripple variants
• Height: ~40–50 mm depending on voltage/grade
• Polarity: Minus (−) band marked on sleeve; observe strictly

Electrical Notes

• Polarized device — reverse voltage causes venting or rupture.
• ESR and ripple rating quoted at 120 Hz, +105°C; apply frequency/temperature multipliers from datasheet.
• Expect ESR to rise and capacitance to drift at low temperature; check impedance ratio at −20°C if cold-start matters.
• Lifetime follows the 10°C rule: every 10°C below 105°C roughly doubles effective service life.

Typical Applications

Power Supplies

• SMPS output filtering and bulk capacitance
• AC-DC rectifier smoothing
• DC-DC converter input bulk reservoir

Motor Drive & Industrial

• VFD DC-bus filtering
• Servo drive power stage reservoir
• Welding machine energy buffer

Backup & Energy

• UPS DC-link and ride-through energy hold-up
• Inverter energy smoothing

Cross-Reference & Replacement

• Comparable to CDE 381LX / 383LX snap-in family (e.g. 383L473M035N082 class for 35V)
• Drop-in for standard 35 mm / 10 mm-pitch snap-in footprints
• When cross-referencing: match µF, voltage ≥ original, case Ø×H, pin pitch, and ripple rating — not capacitance alone

Installation & Handling

• Insert pins into PCB through-holes; do not bend pins beyond ~15° near the base.
• Wave solder per electrolyte spec (typical ≤260°C, short dwell). Avoid prolonged preheat soak.
• Vibration environment? Add a snap-in retaining clip or nylon strap to relieve solder joints.
• Observe polarity — the sleeved minus side must align with the PCB silkscreen.
• Do not exceed surge voltage; derate 20–30% for long-life industrial designs.
• Capacitor stores charge after power-off — discharge before rework.

Why This Part

• Low ESR + high ripple current in a standard 35 mm snap-in can.
• 105°C rating with 3000 h load life for industrial duty cycles.
• Automation-friendly snap-in footprint — no bolt torque, no busbar lugs.
• 16V / 25V / 35V options under one capacitance family simplify BOM management.
• RoHS-compliant, with safety vent and insulating sleeve as standard.