# FUSE, SMD, 2A, SLOW BLOW, FULL REEL

![Product image](https://novapart.co/image/farnell:2479193/)

**URL**: https://novapart.co/products/0461002.ER./fuse-smd-2a-slow-blow-full-reel
**SKU**: 0461002.ER.
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuses || SMD Fuses
**Price**: €0.7290
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Fuse Current | 2A |
| Product Range | TeleLink 461 Series |
| Fuse Case Style | 4012 |
| Voltage Rating Vac | 600VAC |
| Blow Characteristic | Slow Blow |
| Breaking Capacity Current Ac | 60A |
| Breaking Capacity Current Dc | 100A |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2479193/)

_**Surface Mount Fuses**_ 

_**Miniature Surface Mount**_ 

10 

## [ **RoHS** | **TeleLink[®] Fuse 461 Series** 

**==> picture [40 x 21] intentionally omitted <==**

**----- Start of picture text -----**<br>
® ®<br>n G<br>**----- End of picture text -----**<br>


- Surface mount surge resistant Slo-Blo[®] fuse. 

- Meets UL 60950 3rd Edition power cross requirements stand alone. 

- Designed to allow compliance with Telcordia GR-1089-CORE and TIA-968-A _(formerly FCC Part 68)_ Surge Specifications. 

- Provides coordinated protection with Littelfuse SIDACtor[®] Protection Thyristors without series resistors. 

- Ideal for use in telecommunication equipment including line cards, modems, fax machines, phones, answering machines, caller ID devices and other products connected to phone network. 

- 2A rating has improved temperature rise performance under 2.2A surge current testing when compared with 1.25A rating. 

- Product is **RoHS Compliant** and compatible with lead-free solders and higher temperature profiles when ordered with Standard Silver Plated Brass Caps. 

- Standard product is **RoHS Compliant** and compatible with lead-free solders and higher temperature profiles. 

**AGENCY APPROVALS:** Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. 

Littelfuse: UL E10480 CSA LR29862 Teccor: UL E191008 CSA LR702828 

## **Reference Dimensions:** 

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**----- Start of picture text -----**<br>
10.10( (.128")<br>I (.397") —<br>L [F] 1.25A  [T] (.240")<br>(.123") (.135")<br>TO OO 6.10( _—<br>|-372U (.123") | |-—— (.496") 12.6(<br>Recommended Pad Layout<br>(.067")<br>a 1.70 typ(<br>**----- End of picture text -----**<br>


## **PHYSICAL SPECIFICATIONS:** 

**Materials:** Body: Ceramic 

RoHS Compliant Terminations: Silver Plated Brass Caps 

## **Soldering Parameters:** 

**==> picture [101 x 25] intentionally omitted <==**

**----- Start of picture text -----**<br>
100<br>.500A 1.25A 2A<br>**----- End of picture text -----**<br>


Reflow Solder — 260°C, 30 seconds maximum. Wave Solder — 260°C, 3 seconds maximum. 

**PACKAGING SPECIFICATIONS:** 24mm Tape and Reel per EIA-RS481-2, (IEC 286 part 3); 2500 fuses per reel, add suffix, ER. 

**10** 

## **ORDERING INFORMATION:** 

**==> picture [455 x 175] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||||||||
|---|---|---|---|---|---|---|---|---|---|
|Telecom|Teccor|
|Nano|[2]|TeleLink|Nominal|Nominal|1|
|Catalog|Catalog|Ampere|Voltage|Resistance|Melting I|[2]|t|
|Number|Number|Rating|Rating|Cold Ohms|A|[2]|Sec.|
|0461|.500|F0500T|0.5|600|.560|.840|[1]|||
|0461|1.25|F1250T|1.25|600|.110|16.5|[1]|LTEENN|ETT|
|0461|002.|F1251T|2.00|600|.050|17.5|[1]|
|oom|UMM|NIN|TTT|
|EE|A|
|t is calculated at 10 msec or less. I2t at 10 times rated current has a typical value of:2t at 10 times rated current has a typical value of:t at 10 times rated current has a typical value of:|CCCI|
|[[2]]|sec (2.0A), 22 A|[[2]]|sec (1.25A), 1.3 A|[[2]]|sec (0.5A).|||
|•  Typical inductance < 40nH up to 500 MHz.|
|•  Resistance changes 0.5% for every ˚C.|
|•  Resistance is measured at 10% rated current.|see|a|1 See|ce|ed fo|ee|as|
|beeA|er|
|ve|1|10|NUTS|100|

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


## Notes: 

- 1 I2t is calculated at 10 msec or less. I2t at 10 times rated current has a typical value of:2t at 10 times rated current has a typical value of:t at 10 times rated current has a typical value of: 24 A[[2]] sec (2.0A), 22 A[[2]] sec (1.25A), 1.3 A[[2]] sec (0.5A). 

- Typical inductance < 40nH up to 500 MHz. 

- Resistance changes 0.5% for every ˚C. 

- Resistance is measured at 10% rated current. 

383 

w w w. l i t t e l f u s e . c o m 

_**Miniature Surface Mount**_ 

## _**Surface Mount Fuses**_ 

## **RoHS TeleLink[®] Fuse 461 Series** ~~-_~~ 

## **ELECTRICAL CHARACTERISTICS:** 

|**% of AmpereRating**|**OpeningTime**|
|---|---|
|100%|4 hours,**Min**.|
|250%|1 Second,**Min.;** 120 Seconds,**Max.**|



## **INTERRUPTING RATINGS:** 

60 amperes at 600 VAC. 

## **GR 1089 Inter-building requirements** 

**GR 1089 1[st] level lighting surge inter-building (Equipment under test can not be damaged & must continue to operate properly)** 

|**Surge**|**Minimum**<br>**Peak**<br>**Voltage**<br>**(V)**|**Minimum**<br>**Peak**<br>**Current**<br>**(A)**|**Max**<br>**Rise/Min.**<br>**Decay**<br>**(**µ**s)**|**Repetitions**<br>**Each**<br>**Polarity**|**Fuse**<br>**Choices**|
|---|---|---|---|---|---|
|**1**<br>**2**<br>**3**<br>**4**<br>**5**|600<br>1000<br>1000<br>2500<br>1000|100<br>100<br>100<br>500<br>25|10/1000<br>10/360<br>10/1000<br>2/10<br>10/360|25<br>25<br>25<br>10<br>5|1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>0.5, 1.25, 2.0|



If sufficient series resistance is used, then the 0.5 fuse may be used in test conditions 1-4. 

**GR 1089 2[nd] level lightning surge telecom port (Equipment under test shall not become a fire, fragmentation, or electrical safety hazard)** 

|**Surge**|**Minimum**<br>**Peak**<br>**Voltage**<br>**(V)**|**Minimum**<br>**Peak**<br>**Current**<br>**(A)**|**Max**<br>**Rise/Min.**<br>**Decay**<br>**(**µ**s)**|**Repetitions**<br>**Each**<br>**Polarity**|**Fuse**<br>**Choices**|
|---|---|---|---|---|---|
|**1**<br>**alternative**|5000<br>5000|500<br>5000/8=625|2/10<br>8/20|1<br>1|0.5, 1.25, 2.0<br>0.5, 1.25, 2.0|



## ~~ag~~ 

|||~~ag~~||
|---|---|---|---|
|||®<br>~~ag~~|®|
|||~~ag~~||
|**Maximum Temperature Rise:**||||
|**Telecom Nano2 Fuse**|**Temperature Reading**|||
|04611.25|<|82˚C(180˚F)||
|0461002.|<|50˚C(122˚F)||



## **Maximum Temperature Rise:** 

• Higher Currents and PCB layout designs can affect this parameter. Readings are measured at rated current after temperature stabilizes. 

## **Temperature Derating Curve** 

Operating Temperature is -55˚C to +125˚C with proper correction factor applied 

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• Ambient temperature effects are in addition to the normal derating. 

The 0.5 fuse will open during these test conditions. The 1.25 & 2.0 will not open thus providing operational compliance. 

## **GR 1089 AC power fault 1[st] level inter-building (fuse not allowed to open)** 

|**Test**|**Vrms**|**Short**<br>**Circuit**<br>**Current**<br>**(A)**|**Duration**|**Primary**<br>**Protector**|**Fuse**<br>**Choices**|
|---|---|---|---|---|---|
|**1**<br>**2**<br>**3**<br>200,400, 600<br>**4**<br>**5**<br>**6**<br>**7**<br>**8**<br>**9**|50<br>100<br>200,400, 600<br>1000<br>Diagram<br>600<br>440<br>600<br>1000|.33<br>.17<br>1<br>1<br>Diagram<br>0.5<br>2.2<br>3<br>5|15 min.<br>15 min<br>60 x 1 sec.<br>60 x 1 sec.<br>60 x 5 sec.<br>30s<br>5 x 2 sec.<br>1.1 sec.<br>0.4 sec.|removed<br>removed<br>removed<br>operative<br>removed<br>removed<br>removed<br>removed<br>in place|1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0<br>1.25, 2.0|



**GR 1089 AC power fault 2[nd] level (fuse can open but must open in a safe and controlled manner)** 

|**Test**<br>**Circuit**|**Vrms**|**Short**<br>**(A)**|**Duration**|**Fuse**|
|---|---|---|---|---|
|**1**<br>**2**<br>**3**<br>**4**<br>**5**|120, 277<br>600<br>600<br>100-600<br>Diagram|25<br>60<br>7<br>2.2<br>Diagram|15 min.<br>5 sec.<br>5 sec.<br>15 min..<br>15 min.|0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0|



Fuse must open before wiring simulator fuse (MDL 2.0). 

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_**Miniature Surface Mount**_ 

® ® WE 

10 

## [ **RoHS** | **TeleLink[®] Fuse 461 Series** 

## **TIA –968-A (formerly FCC Part 68) Surge Waveforms (fuse can not open during type B events)** 

|**Surge**|**Voltage **<br>**(V)**|**Waveform**<br>**(**µ**s)**|**Current**<br>**(A)**|**Waveform**<br>**(**µ**s)**|**Reps**|**Recommended**<br>**Fuse**|
|---|---|---|---|---|---|---|
|**Metallic A**<br>**Longitudinal A**<br>**Metallic B**<br>**Longitudinal B**|800<br>1500<br>1000<br>1500|10 x 560<br>10 x 160<br>9 x 720<br>9 x 720|100<br>200<br>25<br>37.5|10 x 560<br>10 x 160<br>5 x 320<br>5 x 320|1 ea. polarity<br>1 ea. polarity<br>1 ea. polarity<br>1 ea. polarity|1.25<br>1.25<br>1.25<br>1.25|



For the type A events the 0.5 fuse will open, providing non-operational compliance. The 1.25 & 2.0 will not open, providing for operational compliance with TIA-968-A type A surge events. 

## **UL 60950 requirements** 

## **UL60950 (EN 60950) (formerly UL 1950) Power Cross (L = longitudinal, M = metallic)** 

|**Test**<br>**Number**|**Voltage**<br>**(V)**|**Current**<br>**(A)**|**Time**|**Fuse**<br>**Choices**|
|---|---|---|---|---|
|**L1**<br>**L2**<br>**L3**<br>**L4**<br>**L5**<br>**M1**<br>**M2**<br>**M3**<br>**M4**|600<br>600<br>600<br>200<br>120<br>600<br>600<br>600<br>600|40<br>7<br>2.2<br>2.2<br>25<br>40<br>7<br>2.2<br>2.2|1.5 sec.<br>5 sec.<br>30 min.<br>30 min.<br>30 min.<br>1.5 sec.<br>5 sec.<br>30 min.<br>30 min.|0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0<br>0.5, 1.25, 2.0|



Selection of test number depends on current limiting & fire enclosure/spacing of end product 

   - 26 AWG line cord removes L1/M1 test requirement 

   - L5 conducted only if product does not pass section 6.1.2 

- L2,M2,L3,M3,L4,M4 conducted if not in a fire enclosure 

- Fuse must open before the wiring simulator fuse (MDL 2.0). 

## **UL60950 (EN 60950) (formerly UL 1950) Impulse Test & Steady-state electric strength test** 

|**Test**|**Voltage**<br>**(V)**|**Current**<br>**(A)**|**Waveform**|**Repetitions**|**Fuse**<br>**Choices**|
|---|---|---|---|---|---|
|**Impulse**||||||
|For handheld units<br>Non handheld|2500<br>1500|62.5<br>37.5|10 x 700µs <br>10x 700µs|+<br>10 w/60 sec. rest<br> +<br>10w/60 sec. rest|0.5, 1.25, 2.0<br>0.5,1.25,2.0|
|**Steady-State**|||µ|||
|For handheld units<br>Non handheld|1500<br>1000||60Hz<br>60Hz||0.5, 1.25, 2.0<br>0.5, 1.25, 2.0|



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## Links

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- [Supplier page](https://es.farnell.com/en-ES/littelfuse/0461002-er/fuse-smd-2a-slow-blow-full-reel/dp/2479193)
---

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