# Resettable Fuse, PPTC, 1206 (3216 Metric), PolySwitch 1206L Series, 6 VDC, 350 mA, 750 mA, 0.1 s

![Product image](https://novapart.co/image/farnell:1596991/)

**URL**: https://novapart.co/products/1206L035YR/resettable-fuse-pptc-1206-3216-metric-polyswitch
**SKU**: 1206L035YR
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || Thermistors || Resettable Fuses || Surface Mount PPTCs
**Price**: €0.1810
**Stock**: 1000+
**Lead Time**: 99 days (indicative)

## Description

Thermistor Mounting:SMD; Product Range:POLYFUSE 1206L Series; Holding Current:350mA; Tripping Current:750mA; Voltage Rating:6VDC; Operating Temperature Min:-40°C; Operating Temperature

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (17-Dec-2014) |
| Time To Trip | 0.1s |
| Trip Current | 750mA |
| Product Range | PolySwitch 1206L Series |
| Voltage Rating | 6VDC |
| Holding Current | 350mA |
| Pptc Case Style | 1206 (3216 Metric) |
| Current Rating Max | 100A |
| Thermistor Mounting | SMD |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
| Automotive Qualification Standard | - |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1596991/)

**POLYFUSE[®] Resettable PTCs** Surface Mount 

## **1206L Series** 

## **Description** 

The 1206L series device provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. 

## **Features** 

**Agency Approvals** Le AGENCY AGENCY FILE NUMBER E183209 his R50082521 

   - Low resistance 

- RoHS compliant and lead-free 

   - Low-profile 

- Fast response to fault •  Compatible with high currents temperature solders 

   - Compatible with high 

- Compact design saves board space 

- **Applications** 

- ~~Lo~~ •  USB peripherals •  Mobile phones - battery •  Disk drives and port protection 

- Disk drives 

   - Disk drives 

- CD-ROMs 

   - PDAs / digital cameras 

- Plug and play protection for motherboards and 

- Game console port 

peripherals protection 

## **Electrical Characteristics** ~~Lo~~ 

|||||||Current<br>(A)<br>~~ee~~|Time<br>(Sec.)<br>~~ee~~|Rmin<br>(Ω)<br>~~ee~~|Rtyp<br>(Ω)<br>~~ee~~|R1max<br>(Ω)<br>~~ee~~|~~ee~~|
|---|---|---|---|---|---|---|---|---|---|---|---|
|A|0.125|0.29|30|100|0.6|1.00|0.20|1.500|3.600|6.000|X|
|B<br>~~a ~~<br>~~es~~|0.16<br> ~~ee~~<br>~~es~~|0.37<br>~~ee~~<br>~~De~~|30<br>~~ee ~~<br>~~De~~|100<br> ~~eG~~<br>~~eG~~|0.6<br>~~eG~~<br>~~eG~~|1.00|0.30|1.200<br>~~QO~~<br>~~QO~~|2.800<br>~~QO~~<br>~~QO~~|4.500|X|
|C<br>~~es~~<br>~~es~~|0.20<br>~~es~~<br>~~ee~~|0.42<br>~~De~~<br>~~ee~~|24<br>~~De~~<br>~~eG~~|100<br>~~eG~~<br>~~eG~~|0.6<br>~~eG~~<br>~~eG~~|8.00<br>~~eG~~|0.10|0.650<br>~~QO~~|1.550<br>~~QO~~|2.600|X|
|D<br>~~es~~<br>~~es~~<br>~~Rs~~|0.25<br>~~es ~~<br>~~ee~~<br>~~ee~~|0.50<br> ~~De~~<br>~~ee~~<br>~~ee~~|16<br>~~De ~~<br>~~eG~~<br>~~eG~~|100<br> ~~eG~~<br>~~eG~~<br>~~eG~~|0.6<br>~~eG~~<br>~~eG~~<br>~~eG~~|8.00<br>~~eG~~<br>~~eG~~|0.08<br>~~eG~~|0.550<br>~~QO~~<br>~~eG~~|1.400<br>~~QO~~<br>~~eG~~|2.300<br>~~eG~~|X<br>~~eG~~|
|E<br>~~es ~~<br>~~Rs~~|0.35<br> ~~ee~~<br>~~ee~~|0.75<br>~~ee ~~<br>~~ee~~|6<br> ~~eG~~<br>~~eG~~|100<br>~~eG~~<br>~~eG~~|0.6<br>~~eG~~<br>~~eG~~|8.00<br>~~eG~~<br>~~eG~~|0.10<br>~~eG~~|0.300<br>~~eG~~|0.750<br>~~eG~~|1.200<br>~~eG~~|X<br>~~eG~~|
|J<br>~~Rs ~~<br>~~ee~~|0.35<br> ~~ee~~<br>~~ee ~~|0.75<br>~~ee~~<br> ~~es~~|16<br>~~eG~~<br>~~es ~~|100<br>~~eG~~<br> ~~eG~~|0.6<br>~~eG~~<br>~~eG~~|8.00<br>~~eG~~|0.10<br>~~eG~~|0.300<br>~~eG~~<br>~~QO~~|0.750<br>~~eG~~<br>~~QO~~|1.200<br>~~eG~~|X<br>~~eG~~|
|F<br>~~a~~<br>~~es~~|0.50<br>~~a~~<br>~~ee~~|1.00<br>~~ee~~|6<br>~~eG~~|100<br>~~eG~~|0.6|8.00|0.10|0.150|0.400|0.700|X|
|M<br>~~a~~<br>~~es~~<br>~~Rs~~|0.50<br>~~a~~<br>~~ee~~<br>~~se~~|1.00<br>~~ee~~<br>~~se~~|15<br>~~eG~~<br>~~se~~|100<br>~~eG~~|0.6|8.00|0.10|0.150|0.400|0.750|X|
|G<br>~~es ~~<br>~~Rs~~|0.75<br> ~~ee~~<br>~~se~~|1.50<br>~~ee ~~<br>~~se~~|6<br> ~~eG~~<br>~~se~~|100<br>~~eG~~|0.6|8.00|0.20|0.090|0.200|0.290|X|
|N<br>~~Rs~~<br>~~ee~~<br>~~Rs~~|1.00<br>~~se~~<br>~~ee ~~<br>|1.80<br>~~se~~<br> ~~Ge~~<br>|6<br>~~se~~<br>~~Ge ~~<br>|100<br> ~~eG~~<br>|0.8<br>~~eG~~<br>|8.00<br>|0.30|0.055<br>~~QO~~|0.110<br>~~QO~~|0.210<br>~~I~~|X|
|H<br>~~a~~<br>~~Rs~~|1.10<br>~~ee~~<br>~~ee~~|2.20<br>~~ee~~<br>~~sn~~|6<br>~~eG~~<br>~~sn~~|100<br>~~eG~~<br>~~GG~~|0.8<br>~~eG~~<br>~~GG~~|8.00<br>~~eG~~<br>~~GG~~|0.30<br>~~eG~~<br>~~QO~~|0.040<br>~~eG~~<br>~~QO~~|0.110<br>~~eG~~|0.180<br>~~eG~~<br>~~I~~|X<br>~~eG~~|
|K<br>~~Rs~~|1.50<br>~~ee~~|3.00<br>~~sn~~|6<br>~~sn~~|100<br>~~GG~~|0.8<br>~~GG~~|8.00<br>~~GG~~|1.00<br>~~QO~~|0.040<br>~~QO~~|0.080|0.120<br>~~I~~|X|



I hold = Hold current: maximum current device will pass without tripping in 20°C still air. 

R typ = Typical resistance of device in initial (un-soldered) state. 

- R 1max =  Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. 

I trip = Trip current: minimum current at which the device will trip in 20°C still air. 

- V max = Maximum voltage device can withstand without damage at rated current (I max) 

**Caution:** Operation beyond the specified rating may result in damage and possible arcing and flame. 

- I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) 

- P d = Power dissipated from device when in the tripped state at 20°C still air. 

R min = Minimum resistance of device in initial (un-soldered) state. 

**1206L Series** Specifications are subject to change without notice. 

www.littelfuse.com 

**1** Electronics Designers Guide 

©2006 Littelfuse 

**POLYFUSE[®] Resettable PTCs** Surface Mount 

## **Temperature Rerating** 

**==> picture [506 x 201] intentionally omitted <==**

**----- Start of picture text -----**<br>
Ambient Operation Temperature<br>-40°C -20°C 0°C 23°C 40°C 50°C 60°C 70°C 85°C<br>Part Number Hold Current (A)<br>1206L012 0.18  0.16  0.14  0.125  0.10  0.09  0.08  0.07  0.05<br>1206L016 0.22  0.20  0.18  0.16  0.14  0.12  0.10  0.09  0.08<br>1206L020-C 0.28  0.25  0.23  0.20  0.17  0.15  0.14  0.12  0.09<br>1206L025-C 0.37  0.33  0.29  0.25  0.22  0.20  0.17  0.15  0.12<br>1206L035-C 0.50  0.45  0.40  0.35  0.30  0.27  0.24  0.21  0.15<br>1206L035/16 0.50  0.45  0.40  0.35  0.30  0.27  0.24  0.21  0.15<br>1206L050-C 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25<br>1206L050/15 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25<br>1206L075-C 1.14  1.01  0.88  0.75  0.65  0.59  0.54  0.49  0.41<br>1206L100 1.45  1.31  1.15  1.00  0.84  0.77  0.69  0.61  0.48<br>1206L110-C 1.52 1.37 1.25 1.1 0.92 0.82 0.75 0.64 0.52<br>1206L150-C 2.18  1.94  1.72  1.50  1.28  1.17  1.06  0.96  0.77<br>**----- End of picture text -----**<br>


## **Average Time Current Curves** 

**==> picture [243 x 329] intentionally omitted <==**

**----- Start of picture text -----**<br>
100000<br>10000<br>1000<br>100<br>10<br>1<br>0.100<br>0.010<br>0.001<br>0.20 1 10 100 1000<br>CURRENT IN AMPERES<br>Specifications are subject to change without notice.<br>Note: 1.00 means the number one with two decimal places. AKL V3.9 06.05.10<br>0.120A 0.160A 0.200A 0.250A 0.350A 0.350A/15V 0.500A 0.500A/15V 0.750A 1.00A 1.10A 1.50A 2.00A<br>TIME IN SECONDS<br>**----- End of picture text -----**<br>


## **Temperature Rerating Curve** 

**==> picture [243 x 192] intentionally omitted <==**

**----- Start of picture text -----**<br>
170%<br>150%<br>130%<br>110%<br>90%<br>70%<br>50%<br>30%<br>10%<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80<br>Temperature (°C)<br>Percentage of Rated Current<br>**----- End of picture text -----**<br>


The average time current curves and temperature rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. 

**1206L Series** Specifications are subject to change without notice. 

www.littelfuse.com ©2006 Littelfuse 

**2** Electronics Designers Guide 

**POLYFUSE[®] Resettable PTCs** Surface Mount 

## **Soldering Parameters** 

|Condition|Refow|
|---|---|
|Peak Temp/ Duration Time|260°C / 10 Sec|
|Time above liquids (TAL) 220°C|60 Sec ~ 100 Sec|
|Preheat 120°C~ 180°C|50 Sec ~ 150 Sec|
|Storage Condition|0°C~35°C, 70%RH|



- Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-free 

- Devices are not designed to be wave soldered to the bottom side of the board. 

- Recommended maximum paste thickness is 0.25mm (0.010 inch) 

- Devices can be cleaned using standard industry methods and solvents. 

- **Note:** If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements. 

## **Physical Specifications** 

Solder-Plated Copper (Solder Material: **Terminal Material** Matte Tin (Sn)) Meets EIA Specification RS186-9E, ANSI/ **Lead Solderability** J-STD-002 Category 3. 

**==> picture [245 x 402] intentionally omitted <==**

**----- Start of picture text -----**<br>
260 Soldering Cooling<br>220<br>Preheating<br>180<br>120<br>0<br>50 to 150 60 to 100 120<br>Time(s)<br>Environmental Specifications<br>Operating/Storage<br>-40°C to +85°C<br>Temperature<br>Maximum Device Surface<br>125°C<br>Temperature in Tripped State<br>+85°C, 1000 hours<br>Passive Aging<br>±5% typical resistance change<br>+85°C, 85%R.H. 1000 hours<br>Humidity Aging<br>±5% typical resistance change<br>MIL-STD-202 Method 107G<br>Thermal Shock +85°C/-40°C 20 times<br>-30% typical resistance change<br>MIL-STD-202, Method 215<br>Solvent Resistance<br>No change<br>MIL-STD-883C, Method<br>Vibration 2007.1, Condition A<br>No change<br>Temperature (°C)<br>**----- End of picture text -----**<br>


**1206L Series** Specifications are subject to change without notice. 

www.littelfuse.com 

**3** 

Electronics Designers Guide 

©2006 Littelfuse 

**POLYFUSE[®] Resettable PTCs** Surface Mount 

## **Dimensions** 

**==> picture [507 x 378] intentionally omitted <==**

**----- Start of picture text -----**<br>
MARKING CODE VARIES<br>WITH AMPERAGE RATING<br>(SEE CHART)<br>SHOWN IS 1.6AMP RATING<br>A C<br>Top B Side<br>View N View<br>1.80 mm<br>Bottom Pad (.071) 1.80 mm<br>View Layout (.071)<br>D E 1.00 mm<br>(.040)<br>A B C D E<br>Part<br>Inches mm Inches mm Inches mm Inches mm Inches mm<br>Number<br>Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. Min Max. Min. Max.<br>1206L012 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.03 0.06 0.65 1.45 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L016 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.03 0.06 0.65 1.45 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L020-C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.04 0.5 1 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L025-C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.04 0.5 1 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L035-C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L035/16 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L050-C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L050/15 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.03 0.45 0.75 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L075-C 0.12 0.14 3 3.5 0.06 0.07 1.5 1.8 0.02 0.05 0.45 1.25 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L100 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.04 0.75 1 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L110-C 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.04 0.75 1 0.01 0.2 0.004 0.02 0.1 0.45<br>1206L150-C 0.12 0.13 3 3.4 0.06 0.07 1.5 1.8 0.03 0.06 0.85 1.4 0.01 0.2 0.004 0.02 0.1 0.45<br>**----- End of picture text -----**<br>


## **Part Numbering System** 

## **1206 L 035 /16 W R** 

## **PACKAGING STYLE** 

**R:** Tape & Reel **SERIES QUANTITY CODE:** W=3000 Y=4000 **/XX: SPECIAL VOLTAGE RATING (NOT APPLICABLE TO ALL PARTS) I HOLD HOLD CURRENT CODE (SEE TABLE BELOW) L: LITTELFUSE SURFACE MOUNT PPTC SIZE** 

**1206L Series** Specifications are subject to change without notice. 

www.littelfuse.com 

**4** Electronics Designers Guide 

©2006 Littelfuse 

**POLYFUSE[®] Resettable PTCs** Surface Mount 

## **Packaging** 

**==> picture [326 x 157] intentionally omitted <==**

**----- Start of picture text -----**<br>
I(A) hold I hold Code Packaging Option Quantity Packaging CodesQuantity &<br>0.125 012 Tape and Reel 3000 WR<br>0.16 016 Tape and Reel 3000 WR<br>0.20 020 Tape and Reel 4000 YR<br>0.25 025 Tape and Reel 4000 YR<br>0.35 035 Tape and Reel 4000 YR<br>0.50 050 Tape and Reel 4000 YR<br>0.75 075 Tape and Reel 3000 WR<br>1.00 100 Tape and Reel 3000 WR<br>1.10 110 Tape and Reel 3000 WR<br>1.50 150 Tape and Reel 2000 PR<br>**----- End of picture text -----**<br>


**1206L Series** Specifications are subject to change without notice. 

www.littelfuse.com 

**5** Electronics Designers Guide 

©2006 Littelfuse 



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- [View this product on Novapart](https://novapart.co/products/1206L035YR/resettable-fuse-pptc-1206-3216-metric-polyswitch)
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- [Supplier page](https://es.farnell.com/littelfuse/1206l035yr/fuse-resettable-1206-6v-350ma/dp/1596991)
---

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