0402L010SL 0402 0.1A 6V POLYFUSE Lead-Free SMT SMD Surface Mount Resettable PPTC For CD-ROMs
0402L010SL 0402 0.1A 6V POLYFUSE Lead-Free SMT SMD Surface Mount Resettable PPTC For CD-ROMs
Traditional Fuses vs. PTCs
Fuses and PTCs are both overcurrent protection devices, though each offer their own unique operating characteristics and benefits. Understanding the differences between the two technologies should make the choice in selection easier, depending on the application.
The most obvious difference is that PTCs are automatically resettable whereas traditional Fuses need to be replaced after they they are tripped. Whereas a fuse will completely stop the flow of current (which may be desired in critical applications) after most similar overcurrent event, PTCs continue to enable the equiment to function, except in extreme cases.
Because they reset automatically, many circuit designers choose PTCs in instances where overcurrent events are expected to occur often, and where maintaining low warranty and service costs, constant system uptime, and/or user transparency are at a premium. They are also often chosen in circuits that are difficult to access or in remote locations, were fuse replacement would be difficult.
There are several other operating characteristics to be considered that distinguish PTCs and fuses, and it is also best to test and verify device performance before use within the end application.
Descriptions
The 0402L Series PTC provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired.
Features
RoHS compliant, lead-free and halogen free
Fast response to fault currents
Compact design saves board space Low resistance
Low-profile
Compatible with high temperature solders
0402 size- the smallest PPTC in the market compatible with high temperature solders
Application
USB peripherals
Disk drives
CD-ROMs
Plug and play protection for motherboards and peripherals
PDAs / digital cameras
Game console port protection
Tablet and Notebook PCs
E-readers
Environmental Specifications
| Operating/Storage Temperature | -40°C to +85°C |
| Maximum Device Surface Temperature in Tripped State | 125°C |
| Passive Aging | +85°C, 1000 hours -/+10% typical resistance change |
| Humidity Aging | +85°C, 85% R.H.,100 hours -/+15% typical resistance change |
| Thermal Shock | MIL–STD–202, Method 107 +85°C/-40°C 20 times -30% typical resistance change |
| Solvent Resistance | MIL–STD–202, Method 215 No change |
| Vibration | MIL–STD–883, Method 2007, Condition A No change |
| Moisture Sensitivity Level | Level 1 , J-STD-020 |
| Terminal Material | Solder-Plated Copper (Solder Material: Matte Tin (Sn)) |
| Lead Solderability | Meets EIA Specification RS186-9E, ANSI/J-STD-002, Category 3. |
Electrical Characteristics
Dimension
Average Time Current Curves & Temperature Rerating Curve
PTC PPTC Selection Worksheet
Define the circuit operating parameters
Normal operating current in amperes:
Normal operating voltage in volts:
Maximum interrupt current:
Ambient temperature:
Typical overload current:
Required opening time at specified overload:
Transient pulses expected:
Agency approvals:
Mounting type/form factor:
Typical resistance (in circuit):
Select the proper circuit protection component.
(Refer to PTC Selection Tables below and specifications with Data Sheets)
Determine the opening time at fault.
Consult the Time-Current (T-C) Curve of each PTC series to determine if the selected part will operate within the constraints of your application.
If the device opens too soon, the application may experience nuisance operation. If the device does not open soon enough, the overcurrent may damage downstream components.
To determine the opening time for the chosen device, locate the overload current on the X-axis of the appropriate T-C Curve and follow its line up to its intersection with the curve. At this point read the time tested on the Y-axis. This is the average opening time for that device.
If your overload current falls to the right of the curve the device will open. If the overload current is to the left of the curve, the device will not operate.
Verify ambient operating parameters.
Ensure that the application voltage is less than or equal to the device's rated voltage and that the operating temperature limits are within those specified by the device.
Verify the device's dimensions.
Compare the maximum dimensions of the device to the space available in the application. The dimension of each product is included within each data sheets on the following pages.
Test the selected product in an actual application.
PTC Selection Tables
| Type | Surface Mount | |||||||
|---|---|---|---|---|---|---|---|---|
| Series | 0603L | 0805L | 1206L | 1210L | 1812L | 2016L | 2920L | 250S |
| Chip Size | 0603 (1608) | 0805 (2012) | 1206 (3216) | 1210 (3225) | 1812 (4532) | 2016 (5041) | 2920 (7351) | |
| Hold Current (IHOLD) | 0.10 - 0.35 A | 0.10 - 1.00 A | 0.125 - 1.50 A | 0.05 - 1.50 A | 0.10 - 2.60 A | 0.30 - 2.00 A | 0.30 - 3.00 A | 0.13A |
| Max Voltage (VMAX) | 6 –15 V | 6 –15 V | 6 – 30 V | 6 – 30 V | 6 – 60 V | 6 – 60 V | 6 – 60 V | 60 V |
| Max Fault Current (IMAX) | 40 A | 40 / 100 A | 100 A | 10 / 100 A | 10 / 20 / 100 A | 20 / 40 A | 10 / 40 A | 3 A |
| Operating Temperature Range | -40ºC to 85ºC | |||||||
| RoHS Compliant | YES | |||||||
| Lead-Free | YES | |||||||
| Type | Radial Leaded | ||||||
|---|---|---|---|---|---|---|---|
| Series | USBR | 16R | 30R | 60R | 72R | 250R | 600R |
| Hold Current (IHOLD) | 0.75 - 2.50 A | 2.50 - 14.00 A | 0.90 - 9.00 A | 0.10 - 3.75 A | 0.20 - 3.75 A | 0.08 - 0.18 A | 0.15 - 0.16 A |
| Max Voltage (VMAX) | 6 / 16 V | 16 V | 30 V | 60 V | 72 V | 60 / 250 V | 60 / 600 V |
| Max Fault Current (IMAX) | 40 A | 100 A | 40 A | 40 A | 40 A | 3 / 10 A | 3 A |
| Operating Temperature Range | -40ºC to 85ºC | ||||||
| RoHS Compliant | YES | ||||||
| Lead-Free | YES | ||||||
| Type | Battery Strap | ||||
|---|---|---|---|---|---|
| Series | LR | LT | ST | VL | VT |
| Hold Current (IHOLD) | 1.90 - 7.30 A | 0.70 - 3.40 A | 1.20 - 1.75 A | 1.70 - 2.30 A | 1.70 - 2.40 A |
| Max Voltage (VMAX) | 15 / 20 V | 15 / 24V | 15 V | 12 V | 16 V |
| Max Fault Current (IMAX) | 100A | ||||
| Operating Temperature Range | -40ºC to 85ºC | ||||
| RoHS Compliant | YES | ||||
| Lead-Free | YES | ||||
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