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USFF 1206 Exemplary part photo depending on part no. en IM0012430
Exemplary part photo depending on part no.

Series: USFF 1206

Surface Mount Fuse, 3.2 x 1.6 mm, Super-Quick-Acting FF, 63 VDC / 125 VAC, low impedance

Free Sample Request

20 Variants


  • Complements USF 1206 with lower current ratings
  • Impermeable to potting compound

Unique Selling Proposition

  • Lowest voltage drop
  • Very fast, precise opening


  • Smart meters
  • Battery protection
  • Sensors
  • Mobile devices
  • Semiconductor protection

Rated Voltage

125 VAC, 63 VDC

Rated current

0.05 - 0.25 A

Breaking Capacity

100 A


Super-Quick-Acting FF



Admissible Ambient Air Temp.

-55 °C to 90 °C

Climatic Category

55/090/21 acc. to IEC 60068-1

Material: Housing

Fiber-reinforced plastic, UL 94V-0

Material: Terminals

Gold-Plated Copper Alloy

Unit Weight

0.0133 g

Storage Conditions

0 °C to 60 °C, max. 70% r.h.

Product Marking

Letter (see variants)

Soldering Methods

Soldering Profile


245 °C / 3 sec acc. to IEC 60068-2-58, Test Td

Resistance to Soldering Heat

260 +0/-5 °C / 30 sec acc. to IPC/JEDEC J-STD-020D, Level 1

Moisture Sensitivity Level

MSL 1, J-STD-020 

Case Resistance

acc. to EIA/IS-722, Test 4.7
>100 MΩ (between leeds and body)

Thermal Shock

IEC 60068-2-14, CECC 4200 (5 Cycles 40°C - 125°C)

Moisture Resistance Test

MIL-STD-202C, Method 103 B (Level 1)
IPC/JEDEC-J-STD-20C (85°C@85%RH@240h)

Resistance to Solvents

MIL-STD-202, Method 215
(EIA-722, 4.11)

Terminal Strength

MIL-STD-202, Method 211A
(Deflection of board 1 mm for 1 minute)

Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in  Details about Approvals
SCHURTER products are designed for use in industrial environments. They have approvals from independent testing bodies according to national and international standards. Products with specific characteristics and requirements such as required in the automotive sector according to IATF 16949, medical technology according to ISO 13485 or in the aerospace industry can be offered exclusively with customer-specific, individual agreements by SCHURTER.


The approval mark is used by the testing authorities to certify compliance with the safety requirements placed on electronic products.

Approval Reference Type: USFF 1206

Approval Logo Certificates Certification Body Description
Approval marks cURus UL UL File Number: E41599

Product standards

Product standards that are referenced

Organization Design Standard Description
Partners UL_Certification_Body Designed according to UL 248-14 Low voltage fuses - Part 14: Additional fuses
Partners CSA_Certification_Body Designed according to CSA22.2 No. 248.14 Low-Voltage Fuses - Part 14: Supplemental Fuses

Application standards

Application standards where the product can be used

Organization Design Standard Description
Partners IEC_Certification_Body Designed for applications acc. IEC/UL 60950 IEC 60950-1 includes the basic requirements for the safety of information technology equipment.


The product complies with following Guide Lines

Identification Details Initiator Description
Approval marks CE Selbsteklaration SCHURTER AG The CE marking declares that the product complies with the applicable requirements laid down in the harmonisation of Community legislation on its affixing in accordance with EU Regulation 765/2008.
Environment_Safety RoHS_Logo_color_CMYK_tif SCHURTER AG Directive RoHS 2011/65/EU, Amendment (EU) 2015/863
Environment_Safety China_RoHS_e_konform_eps SCHURTER AG The law SJ / T 11363-2006 (China RoHS) has been in force since 1 March 2007. It is similar to the EU directive RoHS.
Environment_Safety Halogenfrei_Logo_Farbig SCHURTER AG SCHURTER strives to offer our customers halogen free products.
Environment_Safety REACH SCHURTER AG On 1 June 2007, Regulation (EC) No 1907/2006 on the Registration, Evaluation, Authorization and Restriction of Chemicals 1 (abbreviated as "REACH") entered into force.


Picture(s) Selection of product pictures to display a specific variant of the type


Type Corresponds to a product series and includes various distinct variants. On the type of descriptive data are summarized, eg in the data sheet

Order Number

Order Number Unique part number for placing an order

Configuration key

Configuration key The configuration key of a product consists of the composite key values, which describe the different kinds of attribut distinction.


Comment CAD drawings are for modeling purposes only

Model Description

Model Description Abbreviated description of the CAD model


IGS Also mentioned as IGES ( Initial Graphics Exchange Specification). Common program indipendent interchange format for 3D CAD data.


Step Also mentioned as STEP ( Standard for the Exchange of Product Model Data). Common program indipendent interchange format for 3D CAD data standardized according ISO standard.


Parasolid Parasolid modeling kernel is a 3D CAD systems. It is developed by a separate business unit within the Unigraphics Solutions (UGS), now Siemens PLM Software.


DXF (Drawing Interchange Format) is a specified by the Autodesk file format for CAD data exchange, and was developed for the 2D-CAD program AutoCAD. A DXF file describes a CAD model as plain text to the ASCII standard.

USFF 1206
3413.0002.11 3413.0002.22 3413.0002.24 3413.0002.26 3413.0008.11 3413.0008.22 3413.0008.24 3413.0008.26 3413.0009.11 3413.0009.22 3413.0009.24 3413.0009.26 3413.0010.11 3413.0010.22 3413.0010.24 3413.0010.26
3413.00xx.xx CAD-Model shows only one fuse

Dimension [mm]

Reflow soldering pads

Derating Curves

Percentage of Rating [%]
Ambient Temperature [°C]

Pre-Arcing Time

Rated Current In 1.0 x In min. 2.5 x In max. 10.0 x In min. 10.0 x In max.
0.05 A 4 h 5 s 0.1 ms 1 ms
0.125 A 4 h 5 s 0.1 ms 3 ms
0.16 A - 0.25 A 4 h 5 s 0.1 ms 1 ms


Time in Seconds
Current in Amperes

Time in Seconds
Current in Amperes

Short Table of Variants USFF 1206 Open complete table USFF 1206

Rated Current [A] Rated Voltage [VAC] Rated Voltage [VDC] Order Number A=Most Popular

A=Most Popular

Most popular products have the following customer benefits:
- previously ordered by multiple customers
- generally in stock for immediate delivery
- early adoption or mature life cycle
Contact us for availability on other product variants, lead-times vary:
Contact-Form Availability for all products can be searched real-time. Enter part number and required quantity:
Stock Check SCHURTER

Free Sample

Free Sample

Please ask for free sample in order to check if the products meets your requirement for your application. Send your delivery adress and your specific requirements.

Distributor Stock Check

Distributor Stock Check

The following links refers to the inquiry form for distributors stock information of the selected products. It allows checking for the available amount and optionally to place an order at your selected partner.
The stock availability at the distributors may also be called up separately and the desired product manually entered.
Stock Check Distributor

0.05 125 63 3413.0002.11  A  ...
0.05 125 63 3413.0002.22 ...
0.05 125 63 3413.0002.24 ...
0.05 125 63 3413.0002.26 ...
0.125 125 63 3413.0006.11 ...
0.125 125 63 3413.0006.22 ...
0.125 125 63 3413.0006.24 ...
0.125 125 63 3413.0006.26 ...
0.16 125 63 3413.0008.11  A  ...
0.16 125 63 3413.0008.22  A  ...
0.16 125 63 3413.0008.24 ...
0.16 125 63 3413.0008.26 ...
0.2 125 63 3413.0009.11  A  ...
0.2 125 63 3413.0009.22  A  ...
0.2 125 63 3413.0009.24 ...
0.2 125 63 3413.0009.26 ...
0.25 125 63 3413.0010.11  A  ...
0.25 125 63 3413.0010.22  A  ...
0.25 125 63 3413.0010.24 ...
0.25 125 63 3413.0010.26 ...

Most Popular.

1) 10 A @ 125 VAC, 100 A @ 32 VAC, 100 A @ 63 VDC

Date Subcategory Language Title Download
White Paper English White Paper Battery Protection
Fuses English Packaging Details
White Paper English White Paper Fuse Selection
White Paper English White Paper Sensor Protection
Application Note English Application Note PoE English
PCN English USFF 1206 PCN
PCS English USFF 1206 PCS
PCN English USFF 1206 PCN

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