Eaton XV Supercapacitors Complete Guide

Low temperature effect: ESR increases, power output capability decreases

Hot design suggestions:

Avoid approaching high heating elements

Ensure sufficient ventilation

If necessary, use forced cooling

Transient temperature rise considering peak power applications

6.3 Life Estimation Model

The lifespan of supercapacitors is influenced by both voltage and temperature. You can refer to the following simplified model for life estimation:

Basic formula: L=L ₀× 2 ^ ((T ₀ - T)/10) × 2 ^ ((V ₀ - V)/0.1)

among which

L: Estimated lifespan

L ₀: Life under rated conditions (room temperature, rated voltage)

T ₀: Rated temperature (usually room temperature)

T: Actual working temperature

V ₀: Rated voltage

V: Actual working voltage

6.4 PCB Layout Suggestions

Pin pads: Ensure that the pad size is sufficient to support soldering and mechanical stress

High current wiring: For wiring carrying continuous current, it should be wide enough to reduce resistance and temperature rise

Heat dissipation design: Consider increasing the copper foil area on the PCB to assist in heat dissipation

Mechanical fixation: For long size models, it is recommended to add fixing clips or glue reinforcement

Chapter 7: Safe Use and Authentication Information

7.1 UL certification

The XV series supercapacitors have obtained UL certification and comply with relevant safety standards. Certification information can be queried in product labels and UL databases.

7.2 Safety precautions

1. Polarity protection

Supercapacitors have polarity, reverse charging may cause damage or even explosion

Anti reverse protection should be added in circuit design

2. Overvoltage protection

Strictly prohibit exceeding the surge voltage (2.85V)

When used in series, voltage balance must be ensured

3. Mechanical stress

Avoid excessive vibration and impact

Prevent pins from being subjected to force

4. Failure modes

Supercapacitors typically exhibit open circuits or severe parameter degradation during failures

Redundancy design should be considered in critical applications

7.3 Storage Requirements

Temperature range: -40 ° C to+65 ° C

Humidity: Avoid high humidity environments

Storage status: Short circuit storage or empty state is recommended

Long term storage: Storing for more than 3 years may cause parameter changes, and retesting is required before use

Chapter 8 Packaging and Labeling

8.1 Packaging Information

Standard packaging: 20 pieces per box

Packaging method: anti-static tray or tape (depending on specific model)

Storage conditions: room temperature, dry environment

8.2 Product Identification

The following information is printed on the casing of each XV series supercapacitor:

Manufacturer (Eaton)

Capacitance value (F)

Maximum operating voltage (V)

Series code or model

Polarity Mark (Negative)