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HomeProductsCircuit ProtectionPTC Resettable FusesMF-LSMF185/33X-2
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MF-LSMF185/33X-2 - Bourns Inc.

Manufacturer Part Number
MF-LSMF185/33X-2
Manufacturer
Bourns, Inc.
Allelco Part Number
32D-MF-LSMF185/33X-2
ECAD Model
Parts Description
PTC RESET FUSE 33V 1.85A 2920
Package
2920 (7351 Metric), Concave
Data sheet
Multifuse Product Guide.pdf
MF-LSMF Series.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 96260

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Specifications

MF-LSMF185/33X-2 Tech Specifications
Bourns Inc. - MF-LSMF185/33X-2 technical specifications, attributes, parameters and parts with similar specifications to Bourns Inc. - MF-LSMF185/33X-2

Product Attribute Attribute Value  
Manufacturer Bourns, Inc.  
Voltage - Max 33V  
Type Polymeric  
Time to Trip 2.5 s  
Thickness (Max) 0.063" (1.60mm)  
Size / Dimension 0.289" L x 0.202" W (7.36mm x 5.12mm)  
Series Multifuse®, MF-LSMF  
Resistance - Post Trip (R1) (Max) 150 mOhms  
Resistance - Initial (Ri) (Min) 45 mOhms  
Ratings -  
Package / Case 2920 (7351 Metric), Concave  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Operating Temperature -40°C ~ 85°C  
Mounting Type Surface Mount  
Lead Spacing -  
Height - Seated (Max) -  
Current - Trip (It) 3.7 A  
Current - Max 40 A  
Current - Hold (Ih) (Max) 1.85 A  
Base Product Number MF-LSMF  
Approval Agency cURus, TUV  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8533.40.8070

Parts Introduction

Manufacturer Part Number

MF-LSMF185/33X-2

Manufacturer

Bourns

Introduction

The Bourns MF-LSMF185/33X-2 is a high-quality polymeric positive temperature coefficient (PPTC) resettable fuse that provides reliable circuit protection for a wide range of electronic devices and applications. This compact surface-mount device offers robust overcurrent and overtemperature protection, ensuring the safety and reliability of your electrical systems.

Product Features and Performance

Polymeric, resettable design for reliable circuit protection

Rated for a maximum voltage of 33V and a hold current of 1.85A

Trip current of 3.7A and maximum current of 40A

Fast trip time of 2.5 seconds

Initial resistance of 45mΩ and post-trip resistance of 150mΩ

Operating temperature range of -40°C to 85°C

Compact 2920 (7351 Metric) concave package with a size of 7.36mm x 5.12mm and a maximum height of 1.60mm

Product Advantages

Provides effective protection against overcurrent and overtemperature conditions

Resettable design allows for easy system reset after a fault

Compact size and surface-mount packaging for efficient PCB integration

Robust construction and wide operating temperature range for versatile applications

Key Reasons to Choose This Product

Reliable circuit protection for enhanced safety and system longevity

Versatile performance characteristics to meet a wide range of application requirements

Compact and space-saving design for optimized PCB layout

Proven quality and safety certifications (cURus, TUV) for peace of mind

Quality and Safety Features

Certified to cURus and TUV safety standards

Robust construction and materials ensure long-term reliability

Compatibility

The Bourns MF-LSMF185/33X-2 is compatible with a wide range of electronic devices and applications that require overcurrent and overtemperature protection.

Application Areas

Consumer electronics

Industrial equipment

Power supplies

Telecommunications equipment

Automotive electronics

Medical devices

Product Lifecycle

The Bourns MF-LSMF185/33X-2 is an active product currently in production. There are no known equivalent or alternative models available at this time. For the latest information or to inquire about product availability, please contact our website's sales team.

Parts with Similar Specifications

The three parts on the right have similar specifications to Bourns Inc. MF-LSMF185/33X-2

Product Attribute MF-LSMF185/33X-2 MF-FSMF050X-2 MF-LSMF300X-2 MF-LSMF300/24X-2
Part Number MF-LSMF185/33X-2 MF-FSMF050X-2 MF-LSMF300X-2 MF-LSMF300/24X-2
Manufacturer Bourns Inc. Bourns Inc. Bourns Inc. Bourns Inc.
Ratings - - AEC-Q200 AEC-Q200
Type Polymeric Polymeric Polymeric Polymeric
Lead Spacing - - - -
Time to Trip 2.5 s 100 ms 20 s 5 s
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Size / Dimension 0.289" L x 0.202" W (7.36mm x 5.12mm) 0.065" L x 0.033" W (1.65mm x 0.85mm) 0.290' L x 0.202' W (7.36mm x 5.12mm) 0.289" L x 0.202" W (7.36mm x 5.12mm)
Current - Max 40 A 40 A 40 A 20 A
Current - Trip (It) 3.7 A 1 A 5 A 5.2 A
Series Multifuse®, MF-LSMF Multifuse®, MF-FSMF Multifuse®, MF-LSMF Multifuse®, MF-LSMF
Voltage - Max 33V 6V 6V 24V
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Base Product Number MF-LSMF MF-FSMF MF-LSMF MF-LSMF
Resistance - Post Trip (R1) (Max) 150 mOhms 800 mOhms 48 mOhms 75 mOhms
Approval Agency cURus, TUV cURus, TUV cURus, TUV cURus, TUV
Current - Hold (Ih) (Max) 1.85 A 500 mA 3 A 3 A
Resistance - Initial (Ri) (Min) 45 mOhms 100 mOhms 15 mOhms 20 mOhms
Package / Case 2920 (7351 Metric), Concave 0603 (1608 Metric), Concave 2920 (7351 Metric), Concave 2920 (7351 Metric), Concave
Thickness (Max) 0.063" (1.60mm) 0.039" (1.00mm) 0.033' (0.85mm) 0.063" (1.60mm)
Height - Seated (Max) - - - -

MF-LSMF185/33X-2 Datasheet PDF

Download MF-LSMF185/33X-2 pdf datasheets and Bourns Inc. documentation for MF-LSMF185/33X-2 - Bourns Inc..

Datasheets
Multifuse Product Guide.pdf MF-LSMF Series.pdf
Environmental Information
RoHS MF-xxxx Series.pdf MF-LSMF185/33X Material Declaration.pdf
PCN Design/Specification
MF Cert Mark Aug/2015.pdf
PCN Packaging
Revised MOQ,MULT 30/May/2018.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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MF-LSMF185/33X-2 Image

MF-LSMF185/33X-2

Bourns Inc.
32D-MF-LSMF185/33X-2

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