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HomeProductsCircuit ProtectionPTC Resettable FusesMICROSMD190LR-2
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MICROSMD190LR-2 - Littelfuse Inc.

Manufacturer Part Number
MICROSMD190LR-2
Manufacturer
Littelfuse
Allelco Part Number
32D-MICROSMD190LR-2
ECAD Model
Parts Description
PTC RESET FUSE 6V 1.9A 1210
Package
1210 (3225 Metric), Concave
Data sheet
PolySwitch Low Resistivity Catalog.pdf
microSMD190LR-2 Spec.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 5260

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Specifications

MICROSMD190LR-2 Tech Specifications
Littelfuse Inc. - MICROSMD190LR-2 technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - MICROSMD190LR-2

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage - Max 6V  
Type Polymeric  
Time to Trip 4 s  
Thickness (Max) 0.039' (1.00mm)  
Size / Dimension 0.127' L x 0.102' W (3.22mm x 2.58mm)  
Series PolySwitch®, LoRho  
Resistance - Initial (Ri) (Min) 6 mOhms  
Ratings -  
Package / Case 1210 (3225 Metric), Concave  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Operating Temperature -  
Mounting Type Surface Mount  
Lead Spacing -  
Height - Seated (Max) -  
Current - Trip (It) 4.9 A  
Current - Max 50 A  
Current - Hold (Ih) (Max) 1.9 A  
Approval Agency CSA, UL  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2A (4 Weeks)
REACH Status
ECCN EAR99
HTSUS 8533.40.8070

Parts Introduction

Manufacturer Part Number

MICROSMD190LR-2

Manufacturer

littelfuse

Introduction

The MICROSMD190LR-2 is a high-performance, low-resistance polymeric positive temperature coefficient (PPTC) resettable fuse from Littelfuse. This device is designed for circuit protection applications that require a compact and reliable solution for overcurrent and overtemperature protection.

Product Features and Performance

Polymeric PTC design for resettable overcurrent and overtemperature protection

Low resistance of 6 mOhms (min) for efficient power transmission

Hold current of 1.9A (max) and trip current of 4.9A

Maximum current rating of 50A

Fast time to trip of 4 seconds

Operating temperature range not specified

Product Advantages

Compact 1210 (3225 metric) surface mount package

Resettable design for easy circuit reset after fault condition

Reliable circuit protection against overcurrent and overtemperature events

Efficient power transmission with low resistance

Key Reasons to Choose This Product

Robust circuit protection in a small footprint

Reliable performance to safeguard sensitive electronic components

Convenient resettable design for easy fault recovery

Efficient power handling with low resistance

Quality and Safety Features

Approved by CSA and UL for safety and quality assurance

Designed and manufactured to high reliability standards

Compatibility

The MICROSMD190LR-2 is a surface mount device suitable for a wide range of electronic applications that require overcurrent and overtemperature protection.

Application Areas

Consumer electronics

Industrial equipment

Telecommunications systems

Automotive electronics

Product Lifecycle

The MICROSMD190LR-2 is an obsolete product. Customers are advised to contact our website's sales team for information on equivalent or alternative products that may be available.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. MICROSMD190LR-2

Product Attribute MICROSMD190LR-2 MICROSMD200F-2 MICROSMD250LR-A-2 MICROSMD175F-2
Part Number MICROSMD190LR-2 MICROSMD200F-2 MICROSMD250LR-A-2 MICROSMD175F-2
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Operating Temperature - -40°C ~ 85°C - -40°C ~ 85°C
Ratings - - - -
Type Polymeric Polymeric Polymeric Polymeric
Current - Max 50 A 100 A 50 A 40 A
Voltage - Max 6V 6V 6V 6V
Size / Dimension 0.127' L x 0.102' W (3.22mm x 2.58mm) 0.127" L x 0.102" W (3.22mm x 2.58mm) 0.127' L x 0.102' W (3.22mm x 2.58mm) 0.127" L x 0.102" W (3.22mm x 2.58mm)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 1210 (3225 Metric), Concave 1210 (3225 Metric), Concave 1210 (3225 Metric), Concave 1210 (3225 Metric), Concave
Time to Trip 4 s 2.5 s 5 s 800 ms
Series PolySwitch®, LoRho PolySwitch®, microSMD PolySwitch®, LoRho PolySwitch®, microSMD
Lead Spacing - - - -
Resistance - Initial (Ri) (Min) 6 mOhms 20 mOhms 5 mOhms 25 mOhms
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Height - Seated (Max) - - - -
Approval Agency CSA, UL CSA, TUV, UL CSA, UL CSA, TUV, UL
Current - Trip (It) 4.9 A 4 A 5.2 A 3.5 A
Current - Hold (Ih) (Max) 1.9 A 2 A 2.5 A 1.75 A
Thickness (Max) 0.039' (1.00mm) 0.046" (1.17mm) 0.039' (1.00mm) 0.030" (0.76mm)

MICROSMD190LR-2 Datasheet PDF

Download MICROSMD190LR-2 pdf datasheets and Littelfuse Inc. documentation for MICROSMD190LR-2 - Littelfuse Inc..

Datasheets
microSMD190LR-2 Spec.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf
HTML Datasheet
PolySwitch Low Resistivity Catalog.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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MICROSMD190LR-2 Image

MICROSMD190LR-2

Littelfuse Inc.
32D-MICROSMD190LR-2

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