Inrush Current Limiting Thermistors - Rhopoint Components

Ametherm SL10 50002

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL10 50002 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 2A (up to +25°C), resistance of 50Ω ±25% (at 25°C) and a maximum recommended energy rating of 18J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 50Ω ±25% (at 25°C)
Maximum steady state current of 2A (up to +25°C)
Maximum recommended energy of 18J
Voltage ratings of 120VAC and 240VAC
Actual energy failure at 29J
0.44Ω at 100% maximum current and 1.2Ω at 50% maximum current
Body temperature of +140°C at maximum current
Dissipation constant of 11.2mW/°C
Thermal time constant of 38mW/s
Material Type H (for Beta and Curve)
Recognised by Canadian Standards Association (CSA) for ensured safety

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm SL10 50002

The post Ametherm SL10 50002 appeared first on Rhopoint Components.

Ametherm SL10 12101

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL10 12101 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 1A (up to +25°C), resistance of 120Ω ±20% (at 25°C) and a maximum recommended energy rating of 14J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 120Ω (at 25°C)
Maximum steady state current of 1A (up to +25°C)
Maximum recommended energy of 14J
Actual energy failure at 30J
2Ω at 100% maximum current and 6.6Ω at 50% maximum current
Body temperature of +137°C at maximum current
Dissipation constant of 10mW/°C
Tolerance ±20%
Thermal time constant of 30mW/s
Material Type M (for Beta and Curve)
Recognised by Underwriters Laboratories (UL) and Canadian Standards Association (CSA) for ensured safety

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm SL10 12101

The post Ametherm SL10 12101 appeared first on Rhopoint Components.

Ametherm SL10 5R004

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL10 5R004 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 4A (up to +65°C), resistance of 5Ω ±20% (at 25°C) and a maximum recommended energy rating of 20J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 5Ω (at 25°C)
Maximum steady state current of 4A (up to +25°C)
Maximum recommended energy of 20J
Voltage ratings of 120VAC and 240VAC
Actual energy failure at 45J
0.2Ω at 100% maximum current and 0.4Ω at 50% maximum current
Body temperature of +181°C at maximum current
Dissipation constant of 11mW/°C
Tolerance ±20%
Thermal time constant of 30s
Material Type B (for Beta and Curve)

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm SL10 5R004

The post Ametherm SL10 5R004 appeared first on Rhopoint Components.

Ametherm SL08 2R503

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL08 2R503 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 3A (up to +25°C), resistance of 2.5Ω ±20% (at 25°C) and a maximum recommended energy rating of 20J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 2.5Ω (at 25°C)
Maximum steady state current of 3A (up to +25°C)
Maximum recommended energy of 10J
Actual energy failure at 20J
0.15Ω at 100% maximum current and 0.35Ω at 50% maximum current
Body temperature of +75°C at maximum current
Dissipation constant of 9mW/°C
Tolerance ±25%
Thermal time constant of 25mW/s
Material Type C (for Beta and Curve)
Recognised by Underwriters Laboratories (UL) for ensured safety

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm SL08 2R503

The post Ametherm SL08 2R503 appeared first on Rhopoint Components.

Ametherm SL08 5R002

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL08 5R002 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 2A (up to +25°C), resistance of 5Ω ±20% (at 25°C) and a maximum recommended energy rating of 10J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 5Ω (at 25°C)
Maximum steady state current of 2A (up to +25°C)
Maximum recommended energy of 10J
Actual energy failure at 20J
0.18Ω at 100% maximum current and 0.35Ω at 50% maximum current
Body temperature of +124°C at maximum current
Dissipation constant of 9mW/°C
Tolerance ±20%
Thermal time constant of 20mW/s
Material Type B (for Beta and Curve)
Recognised by Underwriters Laboratories (UL) for ensured safety

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm 5R002

The post Ametherm SL08 5R002 appeared first on Rhopoint Components.

Ametherm SL08 5R003

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL08 5R003 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 3A (up to +25°C), resistance of 5Ω ±20% (at 25°C) and a maximum recommended energy rating of 10J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 5Ω (at 25°C)
Maximum steady state current of 3A (up to +25°C)
Maximum recommended energy of 10J
Actual energy failure at 20J
0.18Ω at 100% maximum current and 0.35Ω at 50% maximum current
Body temperature of +124°C at maximum current
Dissipation constant of 9mW/°C
Tolerance ±20%
Thermal time constant of 20mW/s
Material Type B (for Beta and Curve)
Recognised by Canadian Standards Association (CSA) for ensured safety

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm 5R003

The post Ametherm SL08 5R003 appeared first on Rhopoint Components.

Ametherm SL08 7R002

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL08 7R002 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 2A (up to +25°C), resistance of 7Ω ±20% (at 25°C) and a maximum recommended energy rating of 8J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 7Ω (at 25°C)
Maximum steady state current of 2A (up to +25°C)
Maximum recommended energy of 8J
Voltage rating of 120VAC
Actual energy failure at 17J
0.22Ω at 100% maximum current and 0.58Ω at 50% maximum current
Body temperature of +144°C at maximum current
Dissipation constant of 90mW/°C
Tolerance ±20%
Thermal time constant of 27mW/s
Material Type B (for Beta and Curve)
Recognised by Canadian Standards Association (CSA) for ensured safety

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm 7R002

The post Ametherm SL08 7R002 appeared first on Rhopoint Components.

Ametherm SL08 10002

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL08 10002 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 2A (up to +25°C), resistance of 10Ω ±20% (at 25°C) and a maximum recommended energy rating of 10J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 10Ω (at 25°C)
Maximum steady state current of 2A (up to +25°C)
Maximum recommended energy of 10J
Voltage rating of 120VAC
Actual energy failure at 20J
0.3Ω at 100% maximum current and 0.5Ω at 50% maximum current
Body temperature of +149°C at maximum current
Dissipation constant of 8mW/°C
Tolerance ±20%
Thermal time constant of 14mW/s
Material Type B (for Beta and Curve)
Recognised by Underwriters Laboratories (UL) and Canadian Standards Association (CSA) for ensured safety

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm 10002

The post Ametherm SL08 10002 appeared first on Rhopoint Components.

Ametherm SL08 20002

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL08 20002 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 2A (up to +25°C), resistance of 20Ω ±25% (at 25°C) and a maximum recommended energy rating of 8J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 20Ω (at 25°C)
Maximum steady state current of 2A (up to +25°C)
Maximum recommended energy of 8J
Voltage ratings of 120VAC and 240VAC
Actual energy failure at 16J
0.49Ω at 100% maximum current and 0.96Ω at 50% maximum current
Body temperature of +147°C at maximum current
Dissipation constant of 9mW/°C
Tolerance ±25%
Thermal time constant of 20mW/s
Material Type C (for Beta and Curve)

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm 20002

The post Ametherm SL08 20002 appeared first on Rhopoint Components.

Ametherm SL08 33001

Admin — Mon, 23 Nov 2020 20:23:35 +0000

The SL08 33001 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 1.3A (up to +25°C), resistance of 33Ω ±15% (at 25°C) and a maximum recommended energy rating of 8J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

Inrush current limiting thermistor
Resistance of 33Ω (at 25°C)
Maximum steady state current of 1.3A (up to +25°C)
Maximum recommended energy of 8J
Voltage ratings of 120VAC, 240VAC, 480VAC and 680VAC
Actual energy failure at 16J
0.75Ω at 100% maximum current and 1.5Ω at 50% maximum current
Body temperature of +112°C at maximum current
Dissipation constant of 9.3mW/°C
Tolerance ±15%
Thermal time constant of 29mW/s
Material Type G (for Beta and Curve)

Typical applications for the SL series include:

Limit current inrush to PSUs and battery chargers
Lighting circuits and thermostat protection
Electric motor soft start

The below table gives the full specifications of the Ametherm 33001

The post Ametherm SL08 33001 appeared first on Rhopoint Components.