Features
■ Available in E6 series
■ Unit height of 8.5 mm
■ Current rating up to 7.5 A
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
SRR1208 Series - Shielded High Power Inductors
*RoHS COMPLIANT
Test Voltage .......................................1 V
Operating Temperature
............................... -40 °C to +125 °C
(Temperature rise included)
Storage Temperature
............................... -40 °C to +125 °C
Resistance to Soldering Heat
.................................260 °C for 5 sec.
Rated Current
..............Ind. drop of 10 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Electrical Characteristics
Bourns Part No.
Inductance 1 KHz
Q
Ref.
Test
Frequency
(MHz)
SRF
Min.
(MHz)
RDC
Max.
(Ω)
I rms
Max.
(A)
I sat
Typ.
(A)(µH) Tol. %
SRR1208-2R5ML 2.5 ± 20 20 7.96 37 0.011 7.50 10.00
SRR1208-4R5ML 4.5 ± 20 24 7.96 30 0.014 6.50 10.00
SRR1208-6R5ML 6.5 ± 20 25 7.96 20 0.018 6.00 8.40
SRR1208-100ML 10 ± 20 20 2.52 15 0.021 5.00 6.70
SRR1208-120ML 12 ± 20 19 2.52 11 0.025 4.80 6.50
SRR1208-150ML 15 ± 20 21 2.52 11 0.036 4.00 5.60
SRR1208-180ML 18 ± 20 21 2.52 9.0 0.040 3.80 4.00
SRR1208-220ML 22 ± 20 23 2.52 7.0 0.043 3.50 4.00
SRR1208-270ML 27 ± 20 23 2.52 6.5 0.048 3.00 4.30
SRR1208-330YL 33 ± 15 23 2.52 6.5 0.062 2.80 3.80
SRR1208-390YL 39 ± 15 25 2.52 6.0 0.076 2.50 3.40
SRR1208-470YL 47 ± 15 24 2.52 5.0 0.085 2.20 3.10
SRR1208-560YL 56 ± 15 23 2.52 5.0 0.110 2.00 2.80
SRR1208-680YL 68 ± 15 20 2.52 5.0 0.135 1.80 2.60
SRR1208-820YL 82 ± 15 18 2.52 4.0 0.150 1.60 2.30
SRR1208-101YL 100 ± 15 15 0.796 4.0 0.170 1.50 2.10
SRR1208-121YL 120 ± 15 15 0.796 3.0 0.190 1.40 2.00
SRR1208-151YL 150 ± 15 14 0.796 3.0 0.240 1.30 1.72
SRR1208-181YL 180 ± 15 14 0.796 2.5 0.270 1.20 1.70
SRR1208-221KL 220 ± 10 13 0.796 2.5 0.380 1.10 1.45
SRR1208-271KL 270 ± 10 13 0.796 2.0 0.400 0.95 1.25
SRR1208-331KL 330 ± 10 13 0.796 1.8 0.650 0.85 1.12
SRR1208-391KL 390 ± 10 14 0.796 1.6 0.670 0.80 1.10
SRR1208-471KL 470 ± 10 14 0.796 1.4 0.850 0.70 0.95
SRR1208-561KL 560 ± 10 14 0.796 1.4 0.900 0.65 0.90
SRR1208-681KL 680 ± 10 13 0.796 1.2 1.00 0.60 0.82
SRR1208-821KL 820 ± 10 12 0.796 1.2 1.15 0.55 0.77
SRR1208-102KL 1000 ± 10 11 0.252 1.0 1.65 0.50 0.67
SRR1208-122KL 1200 ± 10 10 0.252 0.80 2.00 0.40 0.57
SRR1208-152KL 1500 ± 10 10 0.252 0.75 2.35 0.36 0.55
SRR1208-182KL 1800 ± 10 20 0.252 0.70 3.40 0.46 0.48
SRR1208-222KL 2200 ± 10 20 0.252 0.65 4.20 0.40 0.42
SRR1208-272KL 2700 ± 10 20 0.252 0.60 5.20 0.35 0.38
SRR1208-332KL 3300 ± 10 20 0.252 0.50 6.40 0.32 0.35
SRR1208-392KL 3900 ± 10 20 0.252 0.45 7.80 0.30 0.32
SRR1208-472KL 4700 ± 10 20 0.252 0.42 9.60 0.28 0.30
SRR1208-562KL 5600 ± 10 18 0.252 0.40 12.0 0.25 0.28
SRR1208-682KL 6800 ± 10 18 0.252 0.38 15.2 0.22 0.25
SRR1208-822KL 8200 ± 10 16 0.252 0.35 17.0 0.20 0.22
SRR1208-103KL 10000 ± 10 24 0.0796 0.30 19.2 0.18 0.20
Core ........................Ferrite DR & RI core
Wire ........................... Enameled copper
Base .....................................LCP E4008
Terminal ................................... Cu/Ni/Sn
Packaging ....................400 pcs. per reel
Materials
Product Dimensions
Recommended LayoutSchematic
DIMENSIONS: MM
(INCHES)
101
12.7 ± 0.3
(.500 ± .012)
5.0 ± 0.2
(.197 ± .007)
2.3 ± 0.2
(.091 ± .007)
8.5
(.335)MAX.
12.7 ± 0.3
(.500 ± .012)
6.0
(.236)
4.0
(.157)
7.0
(.276)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
SRR1208 Series - Shielded High Power Inductors
DIMENSIONS: MM
(INCHES)
EMBOSSED
CARRIER
EMBOSSED
CAVITY
0.10
(.004)
THICKNESS
MAX.
QTY: 400 PCS. PER REEL
REV. 01/17
26
(1.02)
30.4
(1.20)
2.0 ± 0.5
(.079 ± .020)
50.0
(1.969)
330
(12.99)DIA.
13.0 ± 0.5
(.512 ± .020)DIA.
13.0 ± 0.5
(.512 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
USER DIRECTION OF FEED
200
(7.874)
NO COMPONENT NO COMPONENTCOMPONENTS
11200
(440.945)
400
(15.748)
START
4
(.157)
20
(.787)
8.6
(0.338)
24
(.945)
END
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
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
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
P[ZHɉSPH[LZJVSSLJ[P]LS`¸)V\YUZ¹
Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
^P[OV\[UV[PJL<ZLYZZOV\SKJOLJRMVYHUKVI[HPU[OLSH[LZ[YLSL]HU[PUMVYTH[PVUHUK]LYPM`[OH[Z\JOPUMVYTH[PVUPZJ\YYLU[
and complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns®WYVK\J[PUH\ZLYHWWSPJH[PVUTH`]HY`
MYVT[OLKH[HZOLL[JOHYHJ[LYPZ[PJZHUKWHYHTL[LYZK\L[VP[OLJVTIPUH[PVUVM[OL)V\YUZ® product with other components
PU[OL\ZLY»ZHWWSPJH[PVUVYPP[OLLU]PYVUTLU[VM[OL\ZLYHWWSPJH[PVUP[ZLSM;OLJOHYHJ[LYPZ[PJZHUKWHYHTL[LYZVMH)V\YUZ®
WYVK\J[HSZVJHUHUKKV]HY`PUKPɈLYLU[HWWSPJH[PVUZHUKHJ[\HSWLYMVYTHUJLTH`]HY`V]LY[PTL<ZLYZZOV\SKHS^H`Z]LYPM`
the actual performance of the Bourns®WYVK\J[PU[OLPYZWLJPÄJKL]PJLZHUKHWWSPJH[PVUZHUKTHRL[OLPYV^UPUKLWLUKLU[
Q\KNTLU[ZYLNHYKPUN[OLHTV\U[VMHKKP[PVUHS[LZ[THYNPU[VKLZPNUPU[V[OLPYKL]PJLVYHWWSPJH[PVU[VJVTWLUZH[LMVY
KPɈLYLUJLZIL[^LLUSHIVYH[VY`HUKYLHS^VYSKJVUKP[PVUZ
<USLZZ)V\YUZOHZL_WSPJP[S`KLZPNUH[LKHUPUKP]PK\HS)V\YUZ® product as meeting the requirements of a particular industry
Z[HUKHYKLN0:6;: VYHWHY[PJ\SHYX\HSPÄJH[PVULN<3SPZ[LKVYYLJVNUPaLK)V\YUZPZUV[YLZWVUZPISLMVYHU`
MHPS\YLVMHUPUKP]PK\HS)V\YUZ®WYVK\J[[VTLL[[OLYLX\PYLTLU[ZVMZ\JOPUK\Z[Y`Z[HUKHYKVYWHY[PJ\SHYX\HSPÄJH[PVU<ZLYZ
of Bourns® products are responsible for ensuring compliance with safety-related requirements and standards applicable to
[OLPYKL]PJLZVYHWWSPJH[PVUZ
Bourns®WYVK\J[ZHYLUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKMVY\ZLPUU\JSLHYSPMLZH]PUNSPMLJYP[PJHSVYSPMLZ\Z[HPUPUN
HWWSPJH[PVUZUVYPUHU`V[OLYHWWSPJH[PVUZ^OLYLMHPS\YLVYTHSM\UJ[PVUTH`YLZ\S[PUWLYZVUHSPUQ\Y`KLH[OVYZL]LYLWYVWLY[`
VYLU]PYVUTLU[HSKHTHNL<USLZZL_WYLZZS`HUKZWLJPÄJHSS`HWWYV]LKPU^YP[PUNI`[^VH\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZ
on a case-by-case basis, use of any Bourns®WYVK\J[ZPUZ\JO\UH\[OVYPaLKHWWSPJH[PVUZTPNO[UV[ILZHMLHUK[O\ZPZH[
[OL\ZLY»ZZVSLYPZR3PMLJYP[PJHSHWWSPJH[PVUZPUJS\KLKL]PJLZPKLU[PÄLKI`[OL<:-VVKHUK+Y\N(KTPUPZ[YH[PVUHZ*SHZZ000
KL]PJLZHUKNLULYHSS`LX\P]HSLU[JSHZZPÄJH[PVUZV\[ZPKLVM[OL<UP[LK:[H[LZ
)V\YUZL_WYLZZS`PKLU[PÄLZ[OVZL)V\YUZ®Z[HUKHYKWYVK\J[Z[OH[HYLZ\P[HISLMVY\ZLPUH\[VTV[P]LHWWSPJH[PVUZVUZ\JO
WYVK\J[Z»KH[HZOLL[ZPU[OLZLJ[PVULU[P[SLK¸(WWSPJH[PVUZ¹<USLZZL_WYLZZS`HUKZWLJPÄJHSS`HWWYV]LKPU^YP[PUNI`[^V
H\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZVUHJHZLI`JHZLIHZPZ\ZLVMHU`V[OLY)V\YUZ®Z[HUKHYKWYVK\J[ZPUHUH\[VTV[P]L
HWWSPJH[PVUTPNO[UV[ILZHMLHUK[O\ZPZUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKHUKPZH[[OL\ZLY»ZZVSLYPZR0M)V\YUZ
L_WYLZZS`PKLU[PÄLZHZ\IJH[LNVY`VMH\[VTV[P]LHWWSPJH[PVUPU[OLKH[HZOLL[MVYP[ZZ[HUKHYKWYVK\J[ZZ\JOHZPUMV[HPUTLU[
VYSPNO[PUNZ\JOPKLU[PÄJH[PVUTLHUZ[OH[)V\YUZOHZYL]PL^LKP[ZZ[HUKHYKWYVK\J[HUKOHZKL[LYTPULK[OH[PMZ\JO)V\YUZ®
Z[HUKHYKWYVK\J[PZJVUZPKLYLKMVYWV[LU[PHS\ZLPUH\[VTV[P]LHWWSPJH[PVUZP[ZOV\SKVUS`IL\ZLKPUZ\JOZ\IJH[LNVY`VM
H\[VTV[P]LHWWSPJH[PVUZ(U`YLMLYLUJL[V)V\YUZ®Z[HUKHYKWYVK\J[PU[OLKH[HZOLL[HZJVTWSPHU[^P[O[OL(,*8Z[HUKHYK
VY¸H\[VTV[P]LNYHKL¹KVLZUV[I`P[ZLSMTLHU[OH[)V\YUZOHZHWWYV]LKZ\JOWYVK\J[MVY\ZLPUHUH\[VTV[P]LHWWSPJH[PVU
Bourns®Z[HUKHYKWYVK\J[ZHYLUV[[LZ[LK[VJVTWS`^P[O<UP[LK:[H[LZ-LKLYHS(]PH[PVU(KTPUPZ[YH[PVUZ[HUKHYKZNLULYHSS`
VYHU`V[OLYNLULYHSS`LX\P]HSLU[NV]LYUTLU[HSVYNHUPaH[PVUZ[HUKHYKHWWSPJHISL[VWYVK\J[ZKLZPNULKVYTHU\MHJ[\YLKMVY
\ZLPUHPYJYHM[VYZWHJLHWWSPJH[PVUZ)V\YUZL_WYLZZS`PKLU[PÄLZ)V\YUZ® standard products that are suitable for use in aircraft
VYZWHJLHWWSPJH[PVUZVUZ\JOWYVK\J[Z»KH[HZOLL[ZPU[OLZLJ[PVULU[P[SLK¸(WWSPJH[PVUZ¹<USLZZL_WYLZZS`HUKZWLJPÄJHSS`
HWWYV]LKPU^YP[PUNI`[^VH\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZVUHJHZLI`JHZLIHZPZ\ZLVMHU`V[OLY)V\YUZ® standard
WYVK\J[PUHUHPYJYHM[VYZWHJLHWWSPJH[PVUTPNO[UV[ILZHMLHUK[O\ZPZUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKHUKPZH[
the user’s sole risk.
;OL\ZLHUKSL]LSVM[LZ[PUNHWWSPJHISL[V)V\YUZ® custom products shall be negotiated on a case-by-case basis by Bourns
and the user for which such Bourns®J\Z[VTWYVK\J[ZHYLZWLJPHSS`KLZPNULK(IZLU[H^YP[[LUHNYLLTLU[IL[^LLU)V\YUZ
HUK[OL\ZLYYLNHYKPUN[OL\ZLHUKSL]LSVMZ\JO[LZ[PUN[OLHIV]LWYV]PZPVUZHWWSPJHISL[V)V\YUZ® standard products shall
also apply to such Bourns® custom products.
Users shall not sell, transfer, export or re-export any Bourns®WYVK\J[ZVY[LJOUVSVN`MVY\ZLPUHJ[P]P[PLZ^OPJOPU]VS]L[OL
KLZPNUKL]LSVWTLU[WYVK\J[PVU\ZLVYZ[VJRWPSPUNVMU\JSLHYJOLTPJHSVYIPVSVNPJHS^LHWVUZVYTPZZPSLZUVYZOHSS[OL`\ZL
Bourns®WYVK\J[ZVY[LJOUVSVN`PUHU`MHJPSP[`^OPJOLUNHNLZPUHJ[P]P[PLZYLSH[PUN[VZ\JOKL]PJLZ;OLMVYLNVPUNYLZ[YPJ[PVUZ
HWWS`[VHSS\ZLZHUKHWWSPJH[PVUZ[OH[]PVSH[LUH[PVUHSVYPU[LYUH[PVUHSWYVOPIP[PVUZPUJS\KPUNLTIHYNVZVYPU[LYUH[PVUHS
YLN\SH[PVUZ-\Y[OLY)V\YUZ® products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns® products may not, without
WYPVYH\[OVYPaH[PVUMYVT)V\YUZHUKVY[OL<:.V]LYUTLU[ILYLZVSK[YHUZMLYYLKVYYLL_WVY[LK[VHU`WHY[`UV[LSPNPISL
[VYLJLP]L<:JVTTVKP[PLZZVM[^HYLHUK[LJOUPJHSKH[H
;V[OLTH_PT\TL_[LU[WLYTP[[LKI`HWWSPJHISLSH^)V\YUZKPZJSHPTZPHU`HUKHSSSPHIPSP[`MVYZWLJPHSW\UP[P]LJVUZLX\LU[PHS
PUJPKLU[HSVYPUKPYLJ[KHTHNLZVYSVZ[YL]LU\LZVYSVZ[WYVÄ[ZHUKPPHU`HUKHSSPTWSPLK^HYYHU[PLZPUJS\KPUNPTWSPLK^HYYHU[PLZ
VMÄ[ULZZMVYWHY[PJ\SHYW\YWVZLUVUPUMYPUNLTLU[HUKTLYJOHU[HIPSP[`
)RU\RXUFRQYHQLHQFHFRSLHVRIWKLV/HJDO'LVFODLPHU1RWLFHZLWK*HUPDQ6SDQLVK-DSDQHVH7UDGLWLRQDO&KLQHVHDQG6LPSOLÀHG&KLQHVH
bilingual versions are available at:
Web Page:
http://www.bourns.com/legal/disclaimers-terms-and-policies
PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
*9
