Littelfuse 04611.25ER

Cross Number:

Item Description: FUSE 1.25A 600V TELELINK NANO2

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1 - 184 $1.02854
185 - 369 $0.80258
370 - 554 $0.70128
555 - 739 $0.67790
740 + $0.60778



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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

85
© 2009 Littelfuse, Inc.
Specications are subject to change without notice.
Surface Mount Fuses
461 Series
Surge Resistant > 461 Series TeleLink
®
Fuse
Please refer to www.littelfuse.com/series/461.html for current information.
461 Series
461 Series TeleLink
®
Fuse
Description
Agency Approvals
Electrical Characteristics for Series
Features
t 4VSGBDFNPVOUTVSHF
SFTJTUBOU4MP#MP
®
GVTF
t .FFU6-SE
&EJUJPOQPXFSDSPTT
SFRVJSFNFOUTTUBOEBSE
BMPOF
t %FTJHOFEUPBMMPX
DPNQMJBODFXJUI5FMDPSEJB
(3$03&BOE5*"
"GPSNFSMZ'$$1BSU
4VSHF4QFDJåDBUJPOT
t 1SPWJEFDPPSEJOBUFE
QSPUFDUJPOXJUI-JUUFMGVTF
4*%"$UPS
®
5SBOTJFOU
7PMUBHF4VQQSFTTPS574
PSB(SFFOUVCF
5.
(BT
1MBTNB"SSFTUPSXJUIPVU
TFSJFTSFTJTUPST
t %FTJHOFEUPTFSWF
UIFSFRVJSFNFOUT
PGBXJEFSBOHFPG
UFMFDPNNVOJDBUJPOBOE
OFUXPSLJOHFRVJQNFOU
t "SBUJOHIBTJNQSPWFE
UFNQFSBUVSFSJTF
QFSGPSNBODFVOEFS"
TVSHFDVSSFOUUFTUJOH
XIFODPNQBSFEXJUI
"SBUJOH
t 1SPEVDUJT)BMPHFO'SFF
BOE3P)4DPNQMJBOUBOE
DPNQBUJCMFXJUIMFBE
GSFFTPMEFSBOEIJHIFS
UFNQFSBUVSFQSPåMFT
XIFOPSEFSFEXJUI
4UBOEBSE4JMWFS1MBUFE
#SBTT$BQT
t 4UBOEBSEQSPEVDUJT
3P)4$PNQMJBOUBOE
DPNQBUJCMFXJUIMFBE
GSFFTPMEFSTBOEIJHIFS
UFNQFSBUVSFQSPåMFT
AGENCY AGENCY FILE NUMBER AMPERE RANGE
E10480 500mA - 2A
LR29862 500mA - 2A
% of Ampere
Rating
Opening Time
 IPVST.JOJNVN
 TFD.JOTFDT.BY
5IF-JUUFMGVTF4FSJFT5FMF-JOL
®
4VSGBDF.PVOU
4VSHF3FTJTUBOU'VTFPGGFSTPWFSDVSSFOUQSPUFDUJPOGPS
BXJEFSBOHFPGUFMFDPNBQQMJDBUJPOTXJUIPVUSFRVJSJOH
BTFSJFTSFTJTUPS8IFOVTFEJODPOKVODUJPOXJUIB
-JUUFMGVTF4*%"$UPS
®
5SBOTJFOU7PMUBHF4VQQSFTTPS574
PSB(SFFOUVCF
5.
(BT1MBTNB"SSFTUPSUIJTDPNCJOBUJPO
QSPWJEFTBDPNQMJBOUTPMVUJPOGPSTUBOEBSETBOE
SFDPNNFOEBUJPOTTVDIBT(3o$PSF5*""6-
&/*&$BOE*56,BOE,5IFDPPSEJOBUJPO
SFRVJSFNFOUDPOUBJOFEJO(3o$PSFBOE*56,
NBZSFRVJSFBTFSJFTPGJNQFEBODFEFWJDFT
Applications
t 5&+BOE)%4-
t 4-*$JOUFSGBDFQPSUJPOPG'JCFSUPUIF$VSC'55$BOE
'JCFSUPUIF1SFNJTFT'551
t /PO'JCFS4-*$JOUFSGBDFGPS$FOUSBM0GåDF$0
MPDBUJPOTBOE3FNPUF5FSNJOBMT35
t Y%4-BQQMJDBUJPOTTVDIBT"%4-"%4-7%4-BOE
7%4-
t &UIFSOFU#BTF5
t 1054BQQMJDBUJPOTTVDIBTNPEFNTBOTXFSJOH
NBDIJOFTUFMFQIPOFTGBYNBDIJOFTBOETFDVSJUZ
TZTUFNT
t *4%/i6wJOUFSGBDF
t #BZTUBUJPO5&+5%4USVOLDBSET
Telecom Nano
¥
Fuse Temperature Reading
 ¡$¡'
 ¡$¡'
Maximum Temperature Rise
Higher Currents and PCB layout designs can affect this parameter.
Readings are measured at rated current after temperature stabilizes.
Revised: June 8, 2011
Introduction to Circuit Protection
Introduction to Circuit Protection
Transientology
86
© 2009 Littelfuse, Inc.
Specications are subject to change without notice.
Surface Mount Fuses
461 Series
Surge Resistant > 461 Series TeleLink
®
Fuse
Please refer to www.littelfuse.com/series/461.html for current information.
Electrical Specications by Item
Ampere
Rating
(A)
Amp Code
Max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance (Ohms)
Nominal Melting
I
t (A
2
sec)
Agency Approvals
  
"!7"$
"!7%$
 
YY
    
YY
    
YY
*
UJTDBMDVMBUFEBUNTFDTPSMFTT*
UBUUJNFTSBUFEDVSSFOUIBTBUZQJDBMWBMVFPG"
TFD""
TFD""
TFD"
t 5ZQJDBMJOEVDUBODFO)VQUP.)[
t 3FTJTUBODFDIBOHFTGPSFWFSZ¡$
t 3FTJTUBODFJTNFBTVSFEBUSBUFEDVSSFOU
GR 1089 Inter-building requirements
GR 1089 1st level lighting surge inter-building
(Equipment under test can not be damaged and must
continue to operate properly)
Surge
Minimum
Peak
Voltage
(V)
Minimum
Peak
Current
(A)
Max.
Rise/Min.
Decay
(μs)
Repetitions
Each
Polarity
Fuse
Choices
    
    
    
4    
   
GR 1089 2nd level lightning surge telecom port
(Equipment under test shall not become a re or
electrical safety hazard)
Surge
Minimum
Peak
Voltage
(V)
Minimum
Peak
Current (A)
Max.
Rise/Min.
Decay
(μs)
Repe-
titions
Each
Polarity
Fuse
Choices
   
"MUFS
OBUJWF
   
*GTVGåDJFOUTFSJFTSFTJTUBODFJTVTFEUIFOUIFGVTFNBZCFVTFEJOUFTUDPOEJUJPOT
5IFGVTFXJMMPQFOEVSJOHUIFTFUFTUDPOEJUJPOT5IFXJMMOPUPQFOUIVT
QSPWJEJOHPQFSBUJPOBMDPNQMJBODF
Average Time Current Curves
10001001010.1
0.001
0.01
0.1
1
10
100
CURRENT IN AMPERES
TIME IN SECONDS
1.25A
2A
.500A
Temperature Rerating Curve
/PUF
 3FSBUJOHEFQJDUFEJOUIJTDVSWFJTJOBEEJUJPOUPUIFTUBOEBSESFSBUJOHPGGPS
DPOUJOVPVTPQFSBUJPO
87
© 2009 Littelfuse, Inc.
Specications are subject to change without notice.
Surface Mount Fuses
461 Series
Surge Resistant > 461 Series TeleLink
®
Fuse
Please refer to www.littelfuse.com/series/461.html for current information.
461 Series
GR 1089 AC power fault 1st level inter-building (fuse
not allowed to open)
GR 1089 AC power fault 2nd level (fuse can open but
must open in a safe and controlled manner)
Test Vrms
Short
Circuit
Current
(A)
Hits Duration
Primary
Protector
Fuse
Choices
  NJO SFNPWFE 
 NJO SFNPWFE 


 TFD SFNPWFE 
4   TFD PQFSBUJWF 
%JBHSBN %JBHSBN  TFDT SFNPWFE 
  TFDT SFNPWFE 
  TFDT SFNPWFE 
 TFDT SFNPWFE 
 TFD JOQMBDF 
Test
Circuit
Vrms
Short
Circuit
Current
(A)
Duration Fuse
  NJO 
  TFDT 
 TFDT 
4   NJO 
%JBHSBN %JBHSBN NJO 
Fuse must open before wiring simulator fuse (MDL 2.0).
Surge Voltage (V) Waveform (μs) Current (A) Repetitions Recommended Fuse
.FUBMMJD"  Y  FBQPMBSJUZ 
-POHJUVEJOBM"  Y  FBQPMBSJUZ 
.FUBMMJD#  Y  FBQPMBSJUZ 
-POHJUVEJOBM#  Y  FBQPMBSJUZ 
TIA –968-A (formerly FCC Part 68) Surge Waveforms (fuse can not open during type B events)
UL 60950 requirements
UL60950 (EN 60950) (formerly UL 1950) Power Cross (L
= longitudinal, M = metallic)
Test
Number
Voltage (V) Current (A) Time
Fuse
Choices
-   TFDT 
-  TFDT 
-   NJO 
-   NJO 
-   NJO 
.   TFDT 
.  TFDT 
.   NJO 
.   NJO 
4election of test number depends on current limiting F re enclosure/spacing of end product
t "8(MJOFDPSESFNPWFT-.UFTUSFRVJSFNFOU
t -DPOEVDUFEPOMZJGQSPEVDUEPFTOPUQBTTTFDUJPO
t -.-.-.DPOEVDUFEJGOPUJOBåSFFODMPTVSF
Fuse must open before the wiring simulator fuse (MDL 2.0).
UL60950 (EN 60950) (formerly UL 1950) Impulse Test and Steady-State Electric Strength Test
Test Voltage (V) Current (A) Waveform Repetitions Fuse Choices
Impulse
'PSIBOEIFMEVOJUT   YNT XTFDTSFTU 
/POIBOEIFME   YNT XTFDTSFTU 
Steady-State
'PSIBOEIFMEVOJUT  )[ 
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'PSUIFUZQF"FWFOUTUIFGVTFXJMMPQFOQSPWJEJOHOPOPQFSBUJPOBMDPNQMJBODF5IFXJMMOPUPQFOQSPWJEJOHGPSPQFSBUJPOBMDPNQMJBODFXJUI5*""UZQF"TVSHFFWFOUT
L
F
1.25A
T
3.12
(.123")
3.12
(.123")
10.10
(.397")
3.25
(.128")
3.43
(.135")
12.6
(.496")
6.10
(.240")
Recommended Pad Layout
1.70 typ
(.067")
Dimensions
12NEXT

Freelance Electronics
13197 Sandoval Street
Santa Fe Springs, CA 90670

Hours of Operation
Monday-Friday 7:30am-4:30pm PST
(Deadline for next day shipment 2:00pm PST)

Trustworthy Standards Serving the Electronic Components
Industry since 1986

Government Cage code#-1V4R6
Duns Number# 788130532
Certified Small Disadvantaged Business