Electronic engineers are super practical! Summary of various component stress derating quick checklists

I

II

III

integrated circuit

Analog circuit

Amplifier

voltage

0.70

0.80

0.80

Input voltage

0.60

0.70

0.70

Output current

0.70

0.80

0.80

power

0.70

0.75

0.80

Maximum junction temperature (°C)

80

95

105

Comparators

voltage

0.70

0.80

0.80

Input voltage

0.70

0.80

0.80

Output current

0.70

0.80

0.80

power

0.70

0.75

0.80

Maximum junction temperature (°C)

80

95

105

Voltage regulator

voltage

0.70

0.80

0.80

Input voltage

0.70

0.80

0.80

Output input voltage difference

0.70

0.80

0.85

Output current

0.70

0.75

0.80

power

0.70

0.75

0.80

Maximum junction temperature (°C)

80

95

105

Analog switch

voltage

0.70

0.80

0.85

Input voltage

0.80

0.85

0.90

Output current

0.75

0.80

0.85

power

0.70

0.75

0.80

Maximum junction temperature (°C)

80

95

105

Digital circuits

Bipolar circuit

frequency

0.80

0.90

0.90

Output current

0.80

0.90

0.90

Maximum junction temperature (°C)

85

100

115

MOS type circuit

voltage

0.70

0.80

0.80

Output current

0.80

0.90

0.90

power

0.80

0.80

0.90

Maximum junction temperature (°C)

85

100

115

Mixed integrated circuit

Thick mode integrated circuit (W/cm 2 )

7.5

Thin mode integrated circuit (W/cm 2 )

6.5

Maximum junction temperature (°C)

85

100

115

Large scale integrated circuit

Maximum junction temperature (°C)

Before considering the heat dissipation method to reduce the junction temperature according to the chip design requirements

Raise, at the highest ambient temperature, the surface temperature should be no greater than the chip junction

Warm-30

DC/DC

power

0.3~0.5

0.1~0.7

0.8

Temperature °C

Maximum use temperature -15

Maximum use temperature -10

Maximum use temperature

Separating semiconductor devices

Transistor

direction

Voltage

General transistor

0.60

0.70

0.80

Gate-source voltage of a power MOSFET

0.50

0.60

0.70

Current

0.60

0.70

0.80

power

0.50

0.65

0.75

Power tube safe working area

Collector-emitter voltage

0.70

0.80

0.90

Collector maximum allowable current

0.60

0.70

0.80

Maximum junction temperature

Tjm (°C)

200

115

140

160

175

100

125

145

≤150

Tjm-65

Tjm-40

Tjm-20

Microwave transistor

Maximum junction temperature

Same transistor

Diode (except reference tube)

Voltage (not applicable to Zener)

0.60

0.70

0.80

Current

0.50

0.65

0.80

power

0.50

0.65

0.80

Maximum junction temperature

Tjm (°C)

200

115

140

160

175

100

125

145

≤150

Tjm-65

Tjm-40

Tjm-20

Microwave diode

Maximum junction temperature

Same diode

Reference diode

Thyristor/semiconductor optoelectronic device

Voltage

0.60

0.70

0.80

Current

0.50

0.65

0.80

Maximum junction temperature

Tjm (°C)

200

115

140

160

175

100

125

145

≤150

Tjm-65

Tjm-40

Tjm-20

Fixed resistor

Synthetic resistor

Voltage

0.75

0.75

0.75

power

0.50

0.60

0.70

Ambient temperature

Derating by component load characteristic curve

Thin film resistor

Voltage

0.75

0.75

0.75

power

0.50

0.60

0.70

Ambient temperature

Derating by component load characteristic curve

Resistance network

Voltage

0.75

0.75

0.75

power

0.50

0.60

0.70

Ambient temperature

Derating by component load characteristic curve

Wirewound resistor

Voltage

0.75

0.75

0.75

power

Precision type

0.25

0.45

0.60

Power type

0.50

0.60

0.70

Ambient temperature

Derating by component load characteristic curve

Potentiometer

Non-wire wound potentiometer

Voltage

0.75

0.75

0.75

power

Synthesis, film fine-tuning

0.30

0.45

0.60

Precision plastic

Not used

0.50

0.50

Ambient temperature

Derating by component load characteristic curve

Wirewound potentiometer

Voltage

0.75

0.75

0.75

power

normal type

0.30

0.45

0.50

Unsealed power type

-

-

0.70

Trimmer wire winding

0.30

0.45

0.50

Ambient temperature

Derating by component load characteristic curve

Thermistor

power

0.50

0.50

0.50

Maximum ambient temperature (°C)

T AM -15

T AM -15

T AM -15

Capacitor

Fixed glass glaze

DC operating voltage

0.50

0.60

0.70

Maximum rated ambient temperature T AM (°C)

T AM -10

T AM -10

T AM -10

Fixed mica

DC operating voltage

0.50

0.60

0.70

Maximum rated ambient temperature T AM (°C)

T AM -10

T AM -10

T AM -10

Fixed ceramic type

DC operating voltage

0.50

0.60

0.70

Maximum rated ambient temperature T AM (°C)

T AM -10

T AM -10

T AM -10

Fixed paper / plastic film

DC operating voltage

0.50

0.60

0.70

Maximum rated ambient temperature T AM (°C)

T AM -10

T AM -10

T AM -10

Electrolytic capacitor

Aluminum electrolysis

DC operating voltage

-

-

0.75

Maximum rated ambient temperature T AM (°C)

-

-

T AM -20

Helium electrolysis

DC operating voltage

0.50

0.60

0.70

Maximum rated ambient temperature T AM (°C)

T AM -20

T AM -20

T AM -20

Trimmer capacitor

DC operating voltage

0.30~0.40

0.50

0.50

Maximum rated ambient temperature T AM (°C)

T AM -10

T AM -10

T AM -10

Inductive component

Hot spot temperature T HS (°C) (abbreviated T)

T-40~25

T-25~10

T-15~0

Working current

0.60~0.70

0.60~0.70

0.60~0.70

Instantaneous voltage/current

0.9

0.9

0.9

Dielectric withstand voltage

0.5~0.6

0.5~0.6

0.5~0.6

Choke working voltage

0.7

0.7

0.7

Relay

Continuous contact current

Low power load (<100mW)

No derating

Resistive load

0.50

0.75

0.90

Capacitive load (maximum inrush current)

0.50

0.75

0.90

Inductive load

Inductor rated current

0.50

0.75

0.90

Resistance rated current

0.35

0.40

0.75

Motor load

Motor rated current

0.50

0.75

0.90

Resistance rated current

0.15

0.20

0.35

Filament load

Lamp rated current

0.50

0.75

0.90

Resistance rated current

0.07~0.08

0.10

0.30

Contact power (for reed mercury)

0.40

0.50

0.70

Coil pull-in voltage

Minimum sustain voltage

0.90

0.90

0.90

Minimum coil voltage

1.10

1.10

1.10

Coil release voltage

Maximum allowable value

1.10

1.10

1.10

Minimum allowable value

0.90

0.90

0.90

Maximum rated ambient temperature T AM (°C)

T AM -20

T AM -20

T AM -20

Vibration limit

0.60

0.60

0.60

Working life (number of cycles)

0.50

switch

Continuous contact current

Low power load (<100mW)

No derating

Resistive load

0.50

0.75

0.90

Capacitive load (resistance rated current)

0.50

0.75

0.90

Inductive load

Inductor rated current

0.50

0.75

0.90

Resistance rated current

0.35

0.40

0.75

Motor load

Motor rated current

0.50

0.75

0.90

Resistance rated current

0.15

0.20

0.35

Filament load

Lamp rated current

0.50

0.75

0.90

Resistance rated current

0.07~0.08

0.10

0.15

Contact voltage

0.40

0.50

0.70

Contact power

0.40

0.50

0.70

Connector

Operating Voltage

0.50

0.70

0.80

Working current

0.50

0.70

0.80

Maximum contact to rated temperature T M (°C)

T M -40

T M -20

T M -15

Motor

Maximum working temperature (°C)

T-40

T-20

T-15

Minimum limit (°C)

0

0

0

Bearing load rating

0.75

0.90

0.90

light bulb

Incandescent lamp

Working voltage (if applicable)

0.94

0.94

0.94

Helium/argon lamp

Working voltage (if applicable)

0.94

0.94

0.94

Circuit breaker

Current

Resistive load

0.75

0.75

0.90

Capacitive load

0.75

0.75

0.90

Inductive load

0.40

0.40

0.50

Motor load

0.20

0.20

0.35

Filament load

0.10

0.10

0.15

Maximum rated ambient temperature T AM (°C)

T AM -20

fuse

Current rating

>0.5A

0.45~0.5

0.45~0.5

0.45~0.5

≤0.5A

0.2~0.4

0.2~0.4

0.2~0.4

When T>25°C, increase the derating by 1/°C

0.005

0.005

0.005

Crystal

Minimum temperature (°C)

T L +10

T L +10

T L +10

Maximum temperature (°C)

T U -10

T U -10

Miniature Button Load Cells is a device that converts the magnitude of a force into an associated electrical signal. It also called Force Sensor,force transducer, small load cells are designed for compression and known for their small package size. They are used in tight and limited spaces. General purpose ones are normally designed with diaphragm construction but some higher precision ones are designed with bending beams for low capacity and shear or column design for higher capacity.

Miniature button load cells are available in various capacities ranging from 5N to 200KN and in packages ranging from 8mm to 51mm OD. (can customized the Load Cell size) , the force sensors are widely used in Medical applications as well as automation where small size is a must and space is limited. For detecting mechanical forces such as tension, tension, pressure, weight, torque, internal stress and strain. As industrial automation continues to increase, load cells will play an increasing role.

Force Sensor,force transducer,button load cell,Force washers sensor,miniature load cell

GALOCE (XI'AN) M&C TECHNOLOGY CO., LTD. , https://www.galoce-meas.com