SinglFuse™ SF-3812TM-T Series Features
nꢀ ReplacementꢀforꢀBourns®ꢀTelefuse™ꢀ
modelsꢀB0500T,ꢀB1250TꢀandꢀB2000T
nꢀ EIAꢀ3812ꢀ(10030ꢀmetric)ꢀfootprint
nꢀ ULꢀ248-14ꢀlisted
nꢀ Forꢀuseꢀinꢀtelecommunicationꢀcircuitꢀ
applicationsꢀrequiringꢀlowꢀcurrentꢀ
protectionꢀwithꢀhighꢀsurgeꢀtolerance
nꢀ OvercurrentꢀprotectionꢀtoꢀTelcordiaꢀꢀ
GR-1089-COREꢀIssueꢀ7ꢀ&ꢀULꢀ60950
nꢀ Surfaceꢀmountꢀpackagingꢀꢀ
0.5
forꢀautomatedꢀassembly
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
SF-3812TM-T Series – SinglFuse™ Telefuse™ Telecom Protectors
Electrical Characteristics
Rated Current
Resistance Rated
(Ω) Typ.*** Voltage
Interrupting
Rating
Typical
Max. Power
Model
Fusing Time
(Amps)
I2t (A2s) **** Dissipation (W)
Open within
1~120 sec. at
250 % rated
current
60 A @ 600 VAC
60 A @ 250 VAC
50 A @ 250 VDC
100 A @ 125 VDC
SF-3812TM050T-2
SF-3812TM125T-2
SF-3812TM200T-2
0.50
0.480
1.4
22
24
0.4
0.6
0.8
600
VAC
1.25
2.00
0.100
0.055
***ꢀ Resistanceꢀvalueꢀmeasuredꢀwithꢀ≤10ꢀ%ꢀratedꢀcurrentꢀatꢀ25ꢀ°Cꢀambient.ꢀToleranceꢀ±30ꢀ%.
2
**** Melting I t calculated at 10 times rated current.
Reliability Testing
No.
Test
Test Condition
Requirement
Test Reference
Temperatureꢀsetup:ꢀ235ꢀ±5ꢀ°C
Timeꢀsetup:ꢀ10ꢀ±1ꢀsec.
Afterꢀtestꢀterminalꢀelectrodeꢀwettingꢀ
areaꢀmustꢀbeꢀgreaterꢀthanꢀ95ꢀ%
1
Solderability
IEC 60068-2-58
Resistanceꢀtoꢀ
solderingꢀheat
Temperatureꢀsetup:ꢀ235ꢀ±5ꢀ°C
Timeꢀsetup:ꢀ30ꢀ±ꢀ5ꢀsec.
2
DCRꢀchangeꢀ≤ꢀ±15ꢀ%
IEC 60068-2-58
Temperature setup:
25ꢀ°Cꢀ~ꢀ-65ꢀ°Cꢀ~ꢀ25ꢀ°Cꢀ~ꢀ125ꢀ°C
Timeꢀsetup:ꢀ-65ꢀ°Cꢀ(30ꢀmin)ꢀ
~ꢀ25ꢀ°Cꢀ(5ꢀmin)ꢀ~ꢀ125ꢀ°Cꢀ(30ꢀmin)ꢀ
~ꢀ25ꢀ°Cꢀ(5ꢀmin),ꢀ5ꢀcycles
DCRꢀchangeꢀ≤ꢀ±15ꢀ%
Noꢀmechanicalꢀdamage
MIL-STD-202G
Methodꢀ107G
TestꢀConditionꢀB
3
Thermalꢀshock
Humidityꢀunload
Heatꢀ(85ꢀ±0.5ꢀ°C)
HighꢀHumidityꢀ(85ꢀ±1ꢀ%ꢀRH)
240ꢀhours
DCRꢀchangeꢀ≤ꢀ±15ꢀ%
Noꢀmechanicalꢀdamage
MIL-STD-202G
Methodꢀ103B
TestꢀConditionꢀA
4
Saltꢀsprayꢀconcentration:ꢀ5ꢀ±1ꢀ%
Testꢀliquidꢀtemperature:ꢀ35ꢀ±0.5ꢀ°C
96ꢀhours
DCRꢀchangeꢀ≤ꢀ±15ꢀ%
Noꢀmechanicalꢀdamage
MIL-STD-202G
Methodꢀ101E
TestꢀConditionꢀA
5
6
7
Saltꢀspray
Bending
Vibration
Theꢀboardꢀshallꢀbeꢀbentꢀbyꢀ1ꢀmmꢀ
atꢀaꢀrateꢀofꢀ1ꢀmm/sec.
DCRꢀchangeꢀ≤ꢀ±15ꢀ%
IECꢀ60127-4
Frequencyꢀsetup:ꢀ10ꢀ~ꢀ55ꢀ~ꢀ10ꢀHz
Timeꢀsetup:ꢀ1ꢀMinute/cycleꢀ
(X-Y-Z,ꢀ120ꢀcycles,ꢀ6ꢀhours)
DCRꢀchangeꢀ≤ꢀ±15ꢀ%
Noꢀmechanicalꢀdamage
MIL-STD-202G
Methodꢀ201A
Agency Recognition
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
ULꢀFileꢀNumber .................................................................E198545
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*ꢀꢀꢀ RoHSꢀDirectiveꢀ2002/95/ECꢀJan.ꢀ27,ꢀ2003ꢀincludingꢀannexꢀandꢀRoHSꢀRecastꢀ2011/65/EUꢀJuneꢀ8,ꢀ2011.ꢀ
**ꢀ Bournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(b)ꢀtheꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀtheꢀtotalꢀBromineꢀ(Br)ꢀandꢀꢀ
ꢀ
Chlorineꢀ(Cl)ꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
“SinglFuse”ꢀisꢀaꢀtrademarkꢀofꢀBourns,ꢀInc.ꢀ
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.