KRM21ER61C106KHA1K datasheet, PDF

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KRM21ER61C106KHA1K: DescriptionMultilayer Ceramic Capacitors MLCC - SMD/SMT 0805 10uF 16volts X5R 10%; CategoryPassive components; File Size799KB，21 Pages; ManufacturerMurata; Websitehttps://www.murata.com; Environmental Compliance

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Multilayer Ceramic Capacitors MLCC - SMD/SMT 0805 10uF 16volts X5R 10%

KRM21ER61C106KHA1K Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Murata
Product Category	Multilayer Ceramic Capacitors MLCC - SMD/SMT
RoHS	Details
Termination	Metal Frame
Capacitance	10 uF
Voltage Rating DC	16 VDC
Dielectric	X5R
Tolerance	10 %
Case Code - in	0805
Case Code - mm	2012
Height	1.8 mm
Minimum Operating Temperature	- 55 C
Maximum Operating Temperature	+ 85 C
Product	General Type MLCCs
Packaging	Reel
Length	2 mm
Package / Case	0805 (2012 metric)
Termination Style	SMD/SMT
Width	1.25 mm
Factory Pack Quantity	8000
Unit Weight	0.000335 oz

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Reference Specification

Metal Terminal Type Multilayer Ceramic Capacitors for General Purpose

( KRM21 Series [Temp. Char.: X5R / Rat. Vol.: DC16V, DC25V] )

Product specifications in this catalog are as of Dec.2017, and are subject to change or

obsolescence without notice.

Please consult the approval sheet before ordering.Please read rating and Cautions first.

Reference only

Caution

■Storage

and Operation Conditions

1. The performance of chip monolithic ceramic capacitors may be affected by the storage conditions.

1-1. Store the capacitors in the following conditions:Room Temperature of +5°C to +40°C and a Relative Humidity

of 20% to 70%.

(1) Sunlight, dust, rapid temperature changes, corrosive gas atmosphere, or high temperature and humidity

conditions during storage may affect solderability and packaging performance. Therefore, please maintain

the storage temperature and humidity. Use the product within six months, as prolonged storage may cause

oxidation of the electrodes.

(2) Please confirm solderability before using after six months. Store the capacitors without opening the original bag.

Even if the storage period is short, do not exceed the specified atmospheric conditions.

1-2. Corrosive gas can react with the termination(external) electrodes or lead wires of capacitors, and result

in poor solderability. Do not store the capacitors in an atmosphere consisting of corrosive gas

(e.g., hydrogen sulfide, sulfur dioxide, chlorine, ammonia gas, etc.).

1-3. Due to moisture condensation caused by rapid humidity changes, or the photochemical change caused

by direct sunlight on the terminal electrodes and/or the resin/epoxy coatings, the solderability and electrical

performance may deteriorate. Do not store capacitors under direct sunlight or in high humidity conditions.

■Rating

1. Temperature Dependent Characteristics

1. The electrical characteristics of a capacitor can change with temperature.

1-1. For capacitors having larger temperature dependency, the capacitance may change with temperature changes.

The following actions are recommended in order to ensure suitable capacitance values.

(1) Select a suitable capacitance for the operating temperature range.

(2) The capacitance may change within the rated temperature. When you use a high dielectric constant type

capacitor in a circuit that needs a tight (narrow) capacitance tolerance (e.g., a time-constant circuit),

please carefully consider the temperature characteristics, and carefully confirm the various characteristics

in actual use conditions and the actual system.

2. Measurement of Capacitance

1. Measure capacitance with the voltage and frequency specified in the product specifications.

1-1. The output voltage of the measuring equipment may decrease occasionally when capacitance is high.

Please confirm whether a prescribed measured voltage is impressed to the capacitor.

1-2. The capacitance values of high dielectric constant type capacitors change depending on the AC voltage applied.

Please consider the AC voltage characteristics when selecting a capacitor to be used in an AC circuit.

3. Applied Voltage

1. Do not apply a voltage to the capacitor that exceeds the rated voltage as called out in the specifications.

1-1. Applied voltage between the terminals of a capacitor shall be less than or equal to the rated voltage.

(1) When AC voltage is superimposed on DC voltage, the zero-to-peak voltage shall not exceed the rated DC voltage.

When AC voltage or pulse voltage is applied, the peak-to-peak voltage shall not exceed the rated DC voltage.

(2) Abnormal voltages (surge voltage, static electricity, pulse voltage, etc.) shall not exceed the rated DC voltage.

Typical Voltage Applied to the DC Capacitor

DC Voltage

DC Voltage+AC

AC Voltage

Pulse Voltage

(E: Maximum possible applied voltage.)

1-2. Influence of over voltage

Over voltage that is applied to the capacitor may result in an electrical short circuit caused by the breakdown

of the internal dielectric layers. The time duration until breakdown depends on the applied voltage

and the ambient temperature.

2. Use a safety standard certified capacitor in a power supply input circuit (AC filter), as it is also necessary

to consider the withstand voltage and impulse withstand voltage defined for each device.

EGKRC01

1 / 19

Reference only

Caution

4. Type of Applied Voltage and Self-heating Temperature

1. Confirm the operating conditions to make sure that no large current is flowing into the capacitor due to the continuous

application of an AC voltage or pulse voltage. When a DC rated voltage product is used in an AC voltage circuit or a

pulse voltage circuit, the AC current or pulse current will flow into the capacitor; therefore check the self-heating condition.

Please confirm the surface temperature of the capacitor so that the temperature remains within the upper limits of the

operating temperature, including the rise in temperature due to self-heating. When the capacitor is used with a

high-frequency voltage or pulse voltage, heat may be generated by dielectric loss.

1-1. The load should be contained to the level such that when measuring at atmospheric temperature of 25℃, the product's

self-heating remains below 20℃ and the surface temperature of the capacitor in the actual circuit remains within the

maximum operating temperature.

1-2. The load should be contained so that the self-heating of the capacitor body remains below 20°C, when measuring at

an ambient temperature of 25°C. In addition, use a K thermocouple of φ0.1mm with less heat capacity when

measuring, and measure in a condition where there is no effect from the radiant heat of other components or air flow

caused by convection. Excessive generation of heat may cause deterioration of the characteristics and reliability of the

capacitor. (Absolutely do not perform measurements while the cooling fan is operating, as an accurate measurement

may not be performed.)

5. DC Voltage and AC Voltage Characteristics

1. The capacitance value of a high dielectric constant type capacitor changes depending on the DC voltage applied.

Please consider the DC voltage characteristics when a capacitor is selected for use in a DC circuit.

1-1. The capacitance of ceramic capacitors may change sharply depending on the applied voltage (see figure).

Please confirm the following in order to secure the capacitance.

(1) Determine whether the capacitance change caused by the applied voltage is within the allowed range.

(2) In the DC voltage characteristics, the rate of capacitance change becomes larger as voltage increases, even if the

applied voltage is below the rated voltage. When a high dielectric constant type capacitor is used in a circuit that

requires a tight (narrow) capacitance tolerance (e.g., a time constant circuit), please carefully consider the voltage

characteristics, and confirm the various characteristics in actual operating conditions in an actual system.

2. The capacitance values of high dielectric constant type capacitors changes depending on the AC voltage applied.

Please consider the AC voltage characteristics when selecting a capacitor to be used in an AC circuit.

6. Capacitance Aging

1. The high dielectric constant type capacitors have the characteristic in which the capacitance value decreases with the

passage of time. When you use high dielectric constant type capacitors in a circuit that needs a tight (narrow) capacitance

tolerance (e.g., a time-constant circuit), please carefully consider the characteristics of these capacitors, such as their

aging, voltage, and temperature characteristics. In addition, check capacitors using your actual appliances at the intended

environment and operating conditions.

7. Vibration and Shock

1. Please confirm the kind of vibration and/or shock, its condition, and any generation of resonance.

Please mount the capacitor so as not to generate resonance, and do not allow any impact on the terminals.

2. Mechanical shock due to being dropped may cause damage or a crack in the dielectric material of the capacitor.

Do not use a dropped capacitor because the quality and reliability may be deteriorated.

Crack

Floor

3. When printed circuit boards are piled up or handled, the corner of another printed circuit board should not be allowed

to hit the capacitor, in order to avoid a crack or other damage to the capacitor.

EGKRC01

2 / 19

Reference only

Caution

■Soldering

and Mounting

1. Mounting Position

1. Confirm the best mounting position and direction that minimizes the stress imposed on the capacitor during flexing

or bending the printed circuit board.

1-1. Choose a mounting position that minimizes the stress imposed on the chip during flexing or bending of the board.

[Component Direction]

Locate chip horizontal to the direction in which stress acts.

[Chip Mounting Close to Board Separation Point]

It is effective to implement the following measures, to reduce stress in separating the board. It is best to implement all

of the following three measures; however, implement as many measures as possible to reduce stress.

Contents of Measures

Stress Level

(1) Turn the mounting direction of the component parallel

A>D

(1)

to the board separation surface.

(2) Add slits in the board separation part.

A>B

(3) Keep the mounting position of the component away

Slit

A>C

(3)

from the board separation surface.

[Mounting Capacitors Near Screw Holes]

When a capacitor is mounted near a screw hole, it may be affected by the board deflection that occurs during the

tightening of the screw. Mount the capacitor in a position as far away from the screw holes as possible.

Perforation

Screw Hole

Recommended

Information before Mounting

Do not re-use capacitors that were removed from the equipment.

Confirm capacitance characteristics under actual applied voltage.

Confirm the mechanical stress under actual process and equipment use.

Confirm the rated capacitance, rated voltage and other electrical characteristics before assembly.

Prior to use, confirm the solderability of capacitors that were in long-term storage.

Prior to measuring capacitance, carry out a heat treatment for capacitors that were in long-term storage.

The use of Sn-Zn based solder will deteriorate the reliability of the MLCC.

Please contact our sales representative or product engineers on the use of Sn-Zn based solder in advance.

8. We have also produced a DVD which shows a summary of our opinions, regarding the precautions for mounting.

Please contact our sales representative to request the DVD.

3. Maintenance of the Mounting (pick and place) Machine

1. Make sure that the following excessive forces are not applied to the capacitors.

1-1. In mounting the capacitors on the printed circuit board, any bending force against them shall be kept to a minimum

to prevent them from any bending damage or cracking. Please take into account the following precautions and

recommendations for use in your process.

(1) Adjust the lowest position of the pickup nozzle so as not to bend the printed circuit board.

(2) Adjust the nozzle pressure within a static load of 1N to 3N during mounting.

EGKRC01

3 / 19

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