TR2/6125FF1-R

Effective December 2015 Supersedes March 2015 

Technical Data **4326** 

## 6125FF Fast-acting subminiature fuses 

## **Applications** 

- Power supplies 

- Servers 

- LED/LCD televisions 

- Appliances and white goods 

- LCD monitor/backlight inverters 

- Laptops and notebooks 

## **Agency information** 

- cURus Recognition file number: E19180, Guide JDYX2/JDYX8 

## **Ordering** 

## **Product description** 

- Fast-acting surface mount fuse 

Specify part number and packaging prefix as shown 

Packaging prefix Part number TR26125FF1-R 

- Overcurrent protection of systems up to 125Vac/72Vdc 

- High inrush withstand capability 

- Solder immersion compatible 

## **Packaging prefixes** 

- TR2- (Tape and reel, 5000 parts per 13” diameter reel) 

6125FF Fast-acting subminiature fuses 

Technical Data 4326 Effective December 2015 

## **Electrical characteristics** 

|**% of Amp Rating**||**Opening Time**|
|---|---|---|
|100%||4 Hours Minimum|
|200%||5 Second Maximum|



## **Product specifications** 

|**Product specifications**||
|---|---|
|**Part Number3**<br>**Current rating**<br>**(amps)**|**Voltage rating**<br>**Interrupting rating1 (amps)**<br>**DC cold**<br>**resistance**<br>**(m**Ω**) Typ.**<br>**Melting2**<br>**I2t**<br>**(A2 second)**<br>**Typical**<br>**voltage**<br>**drop (mV)**<br>**Vac**<br>**Vdc**<br>**125Vac**<br>**72Vdc**<br>**32Vdc**|
|6125FF500-R<br>500mA|125<br>72<br>50<br>50<br>300<br>750<br>0.08<br>605|
|6125FF750-R<br>750mA|125<br>72<br>50<br>50<br>300<br>350<br>0.152<br>433|
|6125FF1-R<br>1|125<br>72<br>50<br>50<br>300<br>260<br>0.22<br>415|
|6125FF1.25-R<br>1.25|125<br>72<br>50<br>50<br>300<br>171<br>0.355<br>410|
|6125FF1.5-R<br>1.5|125<br>72<br>50<br>50<br>300<br>112<br>0.456<br>365|
|6125FF2-R<br>2|125<br>72<br>50<br>50<br>300<br>49<br>1.67<br>160|
|6125FF2.5-R<br>2.5|125<br>72<br>50<br>50<br>300<br>45<br>5.20<br>155|
|6125FF3-R<br>3|125<br>72<br>50<br>50<br>300<br>35<br>6.24<br>153|
|6125FF3.5-R<br>3.5|125<br>72<br>50<br>50<br>300<br>27<br>7.28<br>150|
|6125FF4-R<br>4|125<br>72<br>50<br>50<br>300<br>26<br>7.4<br>145|
|6125FF5-R<br>5|125<br>72<br>50<br>50<br>300<br>17<br>9.5<br>141|
|6125FF6.3-R<br>6.3|125<br>72<br>50<br>50<br>300<br>14<br>15.1<br>135|
|6125FF7-R<br>7|125<br>72<br>50<br>50<br>300<br>11<br>37.25<br>112|
|6125FF8-R<br>8|125<br>72<br>50<br>50<br>300<br>8.7<br>70<br>110|
|6125FF10-R<br>10|125<br>72<br>50<br>50<br>300<br>7.3<br>67.75<br>110|
|6125FF12-R<br>12|125<br>72<br>50<br>50<br>300<br>5.3<br>210.59<br>106|
|6125FF15-R<br>15|125<br>72<br>50<br>50<br>300<br>4.2<br>296.10<br>104|



1 AC Interrupting Rating (Measured at designated voltage, 100% power factor); DC Interrupting Rating (Measured at designated voltage, time constant of less than 50 microseconds, battery source) 2 Typical Melting I[2] t (Measured at 72Vdc, 10X rated current (not exceed 50A - IR @ 72Vdc) 3 Part number definition: 6125FFxxx-R 

6125FF= Product code and size 

xxx= Ampere 

-R= RoHS compliant 

## **Dimensions–mm (in)** 

## **Recommended pad layout–mm (in)** 

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**----- Start of picture text -----**<br>
2.72±0.15<br>2.6 3.0<br>(0.107±0.006) 1.35 (0.102) (0.118)<br>(0.053) [TYP.]<br>4.0<br>(0.157)<br>8.6<br>(0.338)<br>6.10±0.20<br>2.72±0.15 (0.24±0.008)<br>(0.107±0.006)<br>**----- End of picture text -----**<br>


www.eaton.com/elx 

2 

6125FF Fast-acting subminiature fuses 

Technical Data 4326 Effective December 2015 

## **Time vs. current curve** 

CURRENT IN AMPS 

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**----- Start of picture text -----**<br>
CURRENT IN AMPS<br>**----- End of picture text -----**<br>


www.eaton.com/elx 

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6125FF Fast-acting subminiature fuses 

Technical Data 4326 Effective December 2015 

## **Temperature derating curve** 

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**----- Start of picture text -----**<br>
125.00<br>120.00<br>115.00<br>110.00<br>105.00<br>100.00<br>95.00<br>90.00<br>85.00<br>80.00<br>-25.0 0.0 24.0 50.0 85.0 105.0 125.0<br>Temperature (°C)<br>Percentage of Rating<br>**----- End of picture text -----**<br>


## **Environmental data** 

Operating temperature: -55°C to 125°C (with derating) Storage temperature: -55°C to 125°C Mechanical shock: MIL- STD- 202, method 213 High frequency vibration: MIL- STD- 202, method 204 Load humidity: MIL- STD- 202, method 103 Moisture resistance: MIL- STD- 202, method 106 Resistance to solvents: MIL- STD- 202, method 215 Thermal shock: MIL- STD- 202, Method 107 

www.eaton.com/elx 

4 

6125FF Fast-acting subminiature fuses 

Technical Data 4326 Effective December 2015 

## **Solder Reflow Profile** 

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TP TC -5°C Table 1 - Standard SnPb Solder (Tc)<br>Max. Ramp Up Rate = 3°C/s tP Volume   Volume<br>Package   mm3   mm3<br>Max. Ramp Down Rate = 6°C/s Thickness <350 ≥ 350<br>TL <2.5mm) 235°C 220°C<br>Preheat t ≥2.5mm 220°C 220°C<br>A<br>Tsmax<br>Table 2 - Lead (Pb) Free Solder (Tc)<br>Volume   Volume   Volume<br>Tsmin Package   mm [3] mm [3] mm [3]<br>   ts Thickness <350 350 - 2000 >2000<br><1.6mm 260°C 260°C 260°C<br>1.6 – 2.5mm 260°C 250°C 245°C<br>>2.5mm 250°C 245°C 245°C<br>25°C<br>Time 25°C to Peak  Time<br>Temperature<br>**----- End of picture text -----**<br>


|**Table 2 - Lead (Pb) Free Solder (Tc)**<br>**Package**<br>**Thickness**<br>**Volume**<br>**mm3**<br>**<350**<br>**Volume**<br>**mm3**<br>**350 - 2000**|**Table 2 - Lead (Pb) Free Solder (Tc)**<br>**Package**<br>**Thickness**<br>**Volume**<br>**mm3**<br>**<350**<br>**Volume**<br>**mm3**<br>**350 - 2000**|**Table 2 - Lead (Pb) Free Solder (Tc)**<br>**Package**<br>**Thickness**<br>**Volume**<br>**mm3**<br>**<350**<br>**Volume**<br>**mm3**<br>**350 - 2000**|**Table 2 - Lead (Pb) Free Solder (Tc)**<br>**Package**<br>**Thickness**<br>**Volume**<br>**mm3**<br>**<350**<br>**Volume**<br>**mm3**<br>**350 - 2000**|**Table 2 - Lead (Pb) Free Solder (Tc)**<br>**Package**<br>**Thickness**<br>**Volume**<br>**mm3**<br>**<350**<br>**Volume**<br>**mm3**<br>**350 - 2000**||**Volume**<br>**mm3**<br>**>2000**|
|---|---|---|---|---|---|---|
|<1.6mm||260°C||260°C||260°C|
|1.6 – 2.5mm||260°C||250°C||245°C|
|>2.5mm||250°C||245°C||245°C|



## **Reference JDEC J-STD-020D** 

|**Profile Feature**||**Standard SnPb Solder**||**Lead (Pb) Free Solder**|
|---|---|---|---|---|
|Preheat and Soak     • Temperature min. (Tsmin)||100°C||150°C|
|• Temperature max. (Tsmax)||150°C||200°C|
|• Time (Tsmin to Tsmax) (ts)||60-120 Seconds||60-120 Seconds|
|Average ramp up rate Tsmax to Tp||3°C/ Second Max.||3°C/ Second Max.|
|Liquidous temperature (Tl)||183°C||217°C|
|Time at liquidous (tL)||60-150 Seconds||60-150 Seconds|
|Peak package body temperature (TP)*||Table 1||Table 2|
|Time (tp)** within 5 °C of the specified classification temperature (Tc)||20 Seconds**||30 Seconds**|
|Average ramp-down rate (Tpto Tsmax)||6°C/ Second Max.||6°C/ Second Max.|
|Time 25°C to Peak Temperature||6 Minutes Max.||8 Minutes Max.|



* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum. 

** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum. 

www.eaton.com/elx 

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6125FF Fast-acting subminiature fuses 

Technical Data 4326 Effective December 2015 

## **Wave solder profile** 

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tp<br>Tp<br>First Wave Second Wave<br>Tsmax<br>Tstyp<br>Tsmin<br>Preheat area Cool down area<br>Temperature<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Time<br>**----- End of picture text -----**<br>


## **Reference EN 61760-1:2006** 

|**Profile feature**|||**Standard SnPb solder**|**Lead (Pb) free solder**|
|---|---|---|---|---|
|Preheat and soak|• Temperature min. (Tsmin)||100°C|100°C|
||• Temperature typ. (Tstyp)||120°C|120°C|
||• Temperature max. (Tsmax)||130°C|130°C|
||• Time max. (Tsmin to Tsmax) (ts)||70 Seconds|70 Seconds|
|∆preheat to max Temeperature|||150°C max.|150°C max.|
|Peak temperature (Tp)|||235°C - 260°C|250°C - 260°C|
|Peak package body|temperature (TP)*||Table 1|Table 2|
|Time at peak temperature (tp)|||10 seconds max<br>5 seconds max each wave|10 seconds max<br>5 seconds max each|
|Ramp-down rate|||~ 2 K/s min|~ 2 K/s min|
||||~3.5 K/s typ|~3.5 K/s typ|
||||~5 K/s max|~5 K/s max|
|Time 25°C to 25°C|||4 minutes|4 minutes|



Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 

Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. 

**Eaton** 

**Electronics Division** 1000 Eaton Boulevard Cleveland, OH 44122 United States www.eaton.com/elx © 2015 Eaton All Rights Reserved Printed in USA Publication No. 4326 BU-SB15120 December 2015 

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