Technical specifications, features, applications and purchasing information.
| Brand | Littelfuse |
| Model Number | KLKR-1/10 |
| Manufacturer Catalog Number | KLKR.100 |
| Product Marking | KLKR 1/10 A |
| Product Category | Class CC Fast-Acting Fuse |
| Product Series | POWR-GARD KLKR |
| Current Rating | 0.1 A (100 mA, 1/10 A) |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 300 VDC |
| Fuse Class | UL Class CC |
| Operating Characteristic | Fast-Acting (Fast-Blow) |
| Nominal Dimensions | 10.3 x 38.1 mm (0.41 x 1.50 in) |
The Littelfuse KLKR-1/10 provides a 0.1 ampere current rating, equivalent to 100 milliamperes, for appropriately specified low-current electrical circuits. Its precise fractional-amperage designation supports replacement and selection where a 1/10 A Class CC fuse is specified.
The KLKR series is designed for equipment requiring a fast response to overcurrent conditions. Unlike the KLDR time-delay series, KLKR fast-acting fuses are intended for applications where rapid overload protection is required. Selection should account for any normal circuit startup or inrush current.
The KLKR series supports compatible AC applications up to 600 VAC and DC applications up to 300 VDC. The applicable voltage rating, fuse current rating and prospective fault current should be checked against the electrical requirements of the circuit.
Features an AC interrupting rating of 200 kA RMS symmetrical and a DC interrupting rating of 20 kA. Littelfuse identifies the DC rating as manufacturer self-certified. The fuse must be selected so that available fault current does not exceed the relevant interrupting rating.
The current-limiting design helps reduce heating and magnetic effects associated with short-circuit currents. Class CC rejection-style construction also helps prevent the use of fuses with insufficient voltage or interrupting ratings when installed in compatible rejection-type fuse holders.
Features a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge size. The compact format is suited to appropriately rated Class CC fuse holders, including Littelfuse L60030C and LPSC/LFPSC Touch-Safe series.
We support online purchase of the Littelfuse KLKR-1/10 Class CC Fast-Acting Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.
What is the Littelfuse KLKR-1/10?
It is a 0.1 A (100 mA) Class CC fast-acting, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLKR series, designed for general-purpose branch circuit protection and applications requiring fast overload response.
What is the manufacturer catalog number?
The manufacturer catalog number is KLKR.100, and the product marking is KLKR 1/10 A. The manufacturer lists KLKR.100T as the ordering number for a 10-piece pack.
What is the current rating of KLKR-1/10?
The current rating is 0.1 ampere, equivalent to 100 milliamperes or one-tenth of an ampere.
What are the AC and DC voltage ratings?
Littelfuse specifies a maximum voltage rating of 600 VAC and 300 VDC for the KLKR series. The selected fuse must be suitable for the applicable operating voltage.
What are the interrupting ratings?
The AC interrupting rating is 200,000 amperes RMS symmetrical, and the DC interrupting rating is 20,000 amperes. Littelfuse identifies the DC rating as self-certified.
Is KLKR-1/10 fast-acting or time-delay?
KLKR-1/10 is a fast-acting fuse. It belongs to the KLKR series, which is intended for fast overload response. The KLDR series has a different time-delay characteristic and should not be treated as an electrically identical replacement.
Can KLKR-1/10 replace a KLDR-1/10 fuse?
Not automatically. Although both belong to the Class CC family and have the same nominal current and voltage ratings, KLKR is fast-acting while KLDR is time-delay. A replacement must match the circuit protection design, including overload response and inrush-current requirements.
Is KLKR-1/10 suitable for solid-state electrical equipment?
Littelfuse identifies solid-state components among the applications for the KLKR series. However, fuse suitability for a specific electronic device must be checked against its required protection characteristics, manufacturer recommendations and relevant time-current data.
What are the physical dimensions and construction materials?
The nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length. The KLKR series features a melamine body and nickel-plated bronze end caps. Littelfuse specifies a series weight of 13.61 g for the 0.1 A through 1 A ratings.
Which fuse holders are recommended?
Littelfuse lists the L60030C and LPSC/LFPSC Touch-Safe series as recommended accessories. Confirm the selected holder has the required Class CC compatibility, voltage rating and electrical capacity.
Is KLKR-1/10 UL listed and RoHS compliant?
The KLKR series is UL Listed under file E81895 and CSA Certified under file LR29862. The manufacturer also identifies RoHS compliance and references CE Declaration of Conformity KLKR_210128_1. The DC interrupting rating is separately manufacturer self-certified.
What should be verified before ordering KLKR-1/10?
Confirm the KLKR-1/10 or KLKR.100 designation, 100 mA current rating, 600 VAC or 300 VDC operating requirement, fast-acting characteristics, interrupting capacity and Class CC fuse-holder compatibility. Littelfuse lists ordering number KLKR.100T for a manufacturer 10-piece pack; this does not establish the quantity supplied by an individual store listing.
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| Brand | Littelfuse |
| Model Number | KLKR-1/10 |
| Manufacturer Catalog Number | KLKR.100 |
| Product Marking | KLKR 1/10 A |
| Product Category | Class CC Fast-Acting Fuse |
| Product Series | POWR-GARD KLKR |
| Current Rating | 0.1 A (100 mA, 1/10 A) |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 300 VDC |
| Fuse Class | UL Class CC |
| Operating Characteristic | Fast-Acting (Fast-Blow) |
| Nominal Dimensions | 10.3 x 38.1 mm (0.41 x 1.50 in) |
The Littelfuse KLKR-1/10 provides a 0.1 ampere current rating, equivalent to 100 milliamperes, for appropriately specified low-current electrical circuits. Its precise fractional-amperage designation supports replacement and selection where a 1/10 A Class CC fuse is specified.
The KLKR series is designed for equipment requiring a fast response to overcurrent conditions. Unlike the KLDR time-delay series, KLKR fast-acting fuses are intended for applications where rapid overload protection is required. Selection should account for any normal circuit startup or inrush current.
The KLKR series supports compatible AC applications up to 600 VAC and DC applications up to 300 VDC. The applicable voltage rating, fuse current rating and prospective fault current should be checked against the electrical requirements of the circuit.
Features an AC interrupting rating of 200 kA RMS symmetrical and a DC interrupting rating of 20 kA. Littelfuse identifies the DC rating as manufacturer self-certified. The fuse must be selected so that available fault current does not exceed the relevant interrupting rating.
The current-limiting design helps reduce heating and magnetic effects associated with short-circuit currents. Class CC rejection-style construction also helps prevent the use of fuses with insufficient voltage or interrupting ratings when installed in compatible rejection-type fuse holders.
Features a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge size. The compact format is suited to appropriately rated Class CC fuse holders, including Littelfuse L60030C and LPSC/LFPSC Touch-Safe series.
We support online purchase of the Littelfuse KLKR-1/10 Class CC Fast-Acting Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.
What is the Littelfuse KLKR-1/10?
It is a 0.1 A (100 mA) Class CC fast-acting, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLKR series, designed for general-purpose branch circuit protection and applications requiring fast overload response.
What is the manufacturer catalog number?
The manufacturer catalog number is KLKR.100, and the product marking is KLKR 1/10 A. The manufacturer lists KLKR.100T as the ordering number for a 10-piece pack.
What is the current rating of KLKR-1/10?
The current rating is 0.1 ampere, equivalent to 100 milliamperes or one-tenth of an ampere.
What are the AC and DC voltage ratings?
Littelfuse specifies a maximum voltage rating of 600 VAC and 300 VDC for the KLKR series. The selected fuse must be suitable for the applicable operating voltage.
What are the interrupting ratings?
The AC interrupting rating is 200,000 amperes RMS symmetrical, and the DC interrupting rating is 20,000 amperes. Littelfuse identifies the DC rating as self-certified.
Is KLKR-1/10 fast-acting or time-delay?
KLKR-1/10 is a fast-acting fuse. It belongs to the KLKR series, which is intended for fast overload response. The KLDR series has a different time-delay characteristic and should not be treated as an electrically identical replacement.
Can KLKR-1/10 replace a KLDR-1/10 fuse?
Not automatically. Although both belong to the Class CC family and have the same nominal current and voltage ratings, KLKR is fast-acting while KLDR is time-delay. A replacement must match the circuit protection design, including overload response and inrush-current requirements.
Is KLKR-1/10 suitable for solid-state electrical equipment?
Littelfuse identifies solid-state components among the applications for the KLKR series. However, fuse suitability for a specific electronic device must be checked against its required protection characteristics, manufacturer recommendations and relevant time-current data.
What are the physical dimensions and construction materials?
The nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length. The KLKR series features a melamine body and nickel-plated bronze end caps. Littelfuse specifies a series weight of 13.61 g for the 0.1 A through 1 A ratings.
Which fuse holders are recommended?
Littelfuse lists the L60030C and LPSC/LFPSC Touch-Safe series as recommended accessories. Confirm the selected holder has the required Class CC compatibility, voltage rating and electrical capacity.
Is KLKR-1/10 UL listed and RoHS compliant?
The KLKR series is UL Listed under file E81895 and CSA Certified under file LR29862. The manufacturer also identifies RoHS compliance and references CE Declaration of Conformity KLKR_210128_1. The DC interrupting rating is separately manufacturer self-certified.
What should be verified before ordering KLKR-1/10?
Confirm the KLKR-1/10 or KLKR.100 designation, 100 mA current rating, 600 VAC or 300 VDC operating requirement, fast-acting characteristics, interrupting capacity and Class CC fuse-holder compatibility. Littelfuse lists ordering number KLKR.100T for a manufacturer 10-piece pack; this does not establish the quantity supplied by an individual store listing.
