# FUSE, SMD, 1A, SLOW BLOW

![Product image](https://novapart.co/image/farnell:2679302/)

**URL**: https://novapart.co/products/0468001.NRHF./fuse-smd-1a-slow-blow
**SKU**: 0468001.NRHF.
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuses || SMD Fuses
**Price**: €0.5220
**Stock**: 1000+
**Lead Time**: 2 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Fuse Current | 1A |
| Product Range | Slo-Blo 468 Series |
| Fuse Case Style | 1206 (3216 Metric) |
| Voltage Rating Vac | 63VAC |
| Voltage Rating Vdc | 63VDC |
| Blow Characteristic | Slow Blow |
| Breaking Capacity Current Ac | 50A |
| Breaking Capacity Current Dc | 50A |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2679302/)

**Surface Mount Fuses** Thin Film > 1206 Size > Slo-Blo[®] Fuse > 468 Series 

**RoHS** ~~**Pb** [iOH[WA] @~~ 

## 468 Series 1206 Slo-Blo[®] Fuse 

## ~~**Description**~~ 

The 468 Series Slo-Blo[®] Surface Mount Fuse (SMF) is a small (1206 size) thin-film device designed for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices. This series is 100% lead-free and meets the requirements of the RoHS directive. New Halogen-Free 468 Series fuses are available–to order use the “HF” suffix. See Part Numbering section for additional information. 

## ~~**Agency Approvals**~~ 

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||||
|---|---|---|
|AGENCY|AGENCY FILE NUMBER|AMPERE RANGE|
|A|E10480|0.5A - 3A|
|29862|0.5A - 3A|
|G|

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


## ~~**Electrical Characteristics for Series**~~ 

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||||
|---|---|---|
|% of Ampere|
|Opening Time at 25|[O]|C|
|Rating|
|100%|4 hours, Minimum|
|200%|1 sec., Min.; 120 sec., Max.|
|300%|0.05 sec., Min.; 1.5 sec., Max|
|800%|0.0015 sec., Min.; .05 sec., Max.|

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


## ~~**Features**~~ 

- Complies with • Package is visually electronic industry distinct from fastenvironmental standards acting version for easy for lead reduction. identification. 

- Product is compatible • Top side marking allows with lead-free solders visual verification of and higher temperature amperage rating. profiles. 

- Time delay feature withstands high inrush currents and prevents nuisance openings. 

## ~~**Applications**~~ 

Secondary protection for space constrained applications: 

## **Additional Information** 

- Cell phones • DVD players 

- Battery packs 

   - Hard disk drives. 

- Digital cameras 

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|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|Datasheet|Resources|Samples|
|Electrical Specifcations by Itemcations by Item|
|Max|Nom|Nom|Agency|
|Ampere|Amp|Voltage|Interrupting|Nominal Cold|Nominal|Voltage|Power|Approvals|
|Rating|Resistance|Melting|
|(A)|Code|Rating|Rating|(Ohms)|I|[2]|t (A|[2]|sec)|Drop|Dissipation|
|(V)|(mV)|(W)|Ww)|
|0.50|.500|63|0.27000|0.0310|156.77|0.0784|x|x|
|a|ee|ee|
|1.00|001.|63|50A @63 VAC/VDC|0.0790|0.1270|94.70|0.0947|x|x|
|a|ee|ee|ee|
|1.50|01.5|63|0.0440|0.2880|82.32|0.1235|x|x|
|||TC|es|
|2.00|002.|63|35A @63 VAC|0.0325|0.5060|77.27|0.1545|x|x|
|2.50|02.5|63|50A @63 VDC|0.0240|1.0110|73.92|0.1848|x|x|
|ff|
|a|ee|es|ee|
|3.00|003.|32|50A @32 VAC/VDC|0.01950|1.2700|72.95|0.2189|x|x|
|ee ee|Gn|

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## ~~**Electrical Specifcations by Itemcations by Item**~~ 

1. Measured at 10% of rated current, 25˚C. 

2. Measured at rated voltage. 

© 2015 Littelfuse, Inc. Specifications are subject to change without notice **.** Application testing is strongly recommended. Revised: 05/22/15 

**Surface Mount Fuses** Thin Film > 1206 Size > Slo-Blo[®] Fuse > 468 Series 

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Temperature Re-rating Curve<br>**----- End of picture text -----**<br>


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Note: 

1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 

Example: 

For continuous operation at 70 degrees celsius, the fuse should be deratedas follows: 

- I = (0.75)(0.80)IRAT = (0.60)IRAT 

2. The temperature derating curve represents the nominal conditions. For questions about temperature derating curve, please consult Littelfuse technical support for assistance. 

## ~~**Soldering Parameters**~~ 

||Refow Condition|Pb – Free assembly|
|---|---|---|
||Pre Heat<br>- Temperature Min (Ts(min))<br>- Temperature Max (Ts(max))<br>- Time (Min to Max) (ts)<br>Average ramp up rate (Liquidus Temp<br>(TL) to peak<br>TS(max)to TL- Ramp-up Rate|150°C<br>200°C<br>60 – 180 secs<br>5°C/second max<br>5°C/second max|
||Refow<br>- Temperature (TL) (Liquidus)<br>- Temperature (tL)|217°C<br>60 – 150 seconds|
||Peak Temperature (TP)|260+0/- 5°C|
||Time within 5°C of actual peak<br>Temperature (tp)|20 – 40 seconds|
||Ramp-down Rate|5°C/second max|
||Time 25°C to peak Temperature (TP)|8 minutes Max.|
||Do not exceed|260°C|
||||
||Wave Soldering<br>260°C, 10 seconds max.||



## ~~**Average Time Current Curves**~~ 

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**----- Start of picture text -----**<br>
100<br>10<br>1<br>0.1<br>0.01<br>0.001<br>0 1 10 100<br>Current in Amperes<br>t P<br>T P<br>Critical Zone<br>Ramp-up TL to TP<br>T S(max) T L t L<br>Ramp-down<br>Preheat<br>T S(min)<br>t S<br>25<br>time to peak temperature Time<br>(t 25ºC to peak)<br>.5A 1A 1.5A 2A 2.5A 3A<br>Time in Seconds<br>Temperature<br>**----- End of picture text -----**<br>


© 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/22/15 

**Surface Mount Fuses** Thin Film > 1206 Size > Slo-Blo[®] Fuse > 468 Series 

**==> picture [93 x 32] intentionally omitted <==**

||~~**Product Characteristics**~~|~~**Product Characteristics**~~|||||
|---|---|---|---|---|---|---|
||||||||
|||**Body:**Epoxy Substrate|||Withstands 10-55 Hz per MIL-STD-202,||
||**Materials**<br>**Operating**<br>**Temperature**<br>**Thermal Shock**|**Terminations:**100% Tin over Nickel over<br>Copper<br>**Element Cover Coat:**Conformal Coating<br>–55OC to 90OC. Consult temperature<br>re-rating curve chart. For operation above<br>90°C please contact Littelfuse<br>Withstands 5 cycles of – 50OC to 125OC||**Vibration**<br>**Insulation Resistance**<br>**(After Opening)**<br>**Resistance to**<br>**Soldering Heat**|Method 201 and<br>10-2000 Hz at 20 g’s per MIL-STD-202,<br>Method 204,Condition D<br>Greater than 10,000 ohms.<br>MIL-STD-202, Method 210,<br>Condition D||
||**Humidity**|MIL-STD-202, Method 103, Condition D|||||



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Dimensions<br>MARKING CODE VARIES<br>WITH AMPERAGE RATING<br>(SEE CHART)<br>0.66±0.127<br>(0.026"±0.005")<br>1.27±0.127<br>(0.050"±0.005")<br>0.635±0.127<br>Coating (0.025"±0.005")<br>1.52±0.127<br>(0.060"±0.005")<br>3.18±0.127<br>(0.125"±0.005")<br>1.65<br>(.065")<br>1.52 4.83<br>(.060") (.190") (.150")3.81 (.060")1.52<br>1.14<br>(.045")<br>2.03 2.03<br>(.080") (.080")<br>WAVE SOLDER INFARED SOLDER<br>**----- End of picture text -----**<br>


## ~~**Part Marking System**~~ 

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Amp  Marking<br>Code Code<br>.500  TF<br>001.  TH<br>01.5  TK<br>002.  TN<br>02.5  TO<br>003.  TP<br>Part Numbering System<br>**----- End of picture text -----**<br>


## **0468002.NRHF** 

## **SERIES** 

**AMP Code** The dot is poisitioned before the Packaging Suffix with whole ratings and within the numbering sequence for fractional ratings. Refer to Amp Code **Example:** column in the Electrical Specifications 1.5 amp product is table. 0468 **01.5** NRHF (2 amp **PACKAGING Code** product shown above). NR = Tape and Reel, 5000 pcs **‘HF’ SUFFIX HALOGEN FREE ITEM** 

||~~**Packaging**~~|||||
|---|---|---|---|---|---|
||Packaging Option|Packaging Specifcation|Quantity|Quantity &<br>Packaging Code||
||Tape & Reel – 8mm tape|EIA-481 Rev. D (IEC 60286, part 3)|5000|NR||



© 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/22/15 



## Links

- [View this product on Novapart](https://novapart.co/products/0468001.NRHF./fuse-smd-1a-slow-blow)
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- [Supplier page](https://es.farnell.com/en-ES/littelfuse/0468001-nrhf/fuse-smd-1a-slow-blow/dp/2679302)
---

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