Features
1-1/4 Rectangular / Multiturn
Wirewound / Industrial / Sealed
Panel mount option available
Listed on the QPL per MIL-PRF-27208
For trimmer applications/processing
guidelines, click here
RT12 - Trimpot Trimming Potentiometer
Electrical Characteristics Product Dimensions How To Order
Standard Resistance Range RT12C2L
MIL-PRF-27208
RT12 C2 P 101
Common Dimensions
...................................10 to 20K ohms
Model
(see standard resistance table)
31.75
Characteristic
Resistance Tolerance ..............5 % std.
(1.25)
C = 50 ppm/C Temp. Coeff. Max.
3.18
Absolute Minimum Resistance
25.4
(.125 )
2 = 85 C Rating Temp.
...........................0.1 % or 1 ohm max.
(1.000)
1.47 .56
150 C Max. Operating Temp.
(whichever is greater)
(.058 .022)
Noise .....................100 ohms ENR max. Terminal Style
Resolution............ See Resistance Table
Resistance Code
ADJ. SLOT
Insulation Resistance ............... 500 vdc.
2.92 .38
DIA.
(.115 .015)
1,000 megohms min. 2.36
DIA.
Standard Resistance Table
.64
(.093)
WIDE
Dielectric Strength X
(.025)
MTG. HOLES (2)
Sea Level ............................ 1,500 vac Nominal
.79
DEEP
X
4.83 Resistance Resistance Resolution
(.031)
70,000 Feet ............................ 400 vac
(.190) (Ohms) Code (Percent)
Adjustment Travel .............22 turns nom.
10 100 2.40
20 200 1.90
Environmental Characteristics
6.10
50 500 1.40
TYP.
6.10
(.240)
100 101 1.00
TYP.
Power Rating @ 70 C ................. 1 watt 152.4
(.240)
LEADS MIN. LENGTH
200 201 0.86
(6.000)
Power Rating @ 150 C ............... 0 watt
8.00 .38 500 501 0.89
1,000 102 0.72
Temperature Range ....-55 C to +150 C (.315 .015)
2,000 202 0.58
Temperature Coef cient ......50 ppm/C
5,000 502 0.43
Seal Test ...................... 85 C Fluorinert*
10,000 103 0.34
20,000 203 0.31
(pin styles only)
2.67
Humidity........ MIL-STD-202 Method 106
(.105 )
3.43 .38
96 hours (.135 .015)
RED WIPER
2
2 % TR, 100 Megohms IR)
RT12C2P
Vibration ............. 30 G (1 % TR; 0.5 % YELLOW 3 GREEN
1
.71 .03
CCW CW
+ resolution DVR)
CLOCKWISE
(.028 .001)
Shock................ 100 G (1 % TR; 0.5 %
DIA. TYP.
+ resolution VR)
MM
2 1 3
Load Life ....1,000 hours 1 watt @ 70 C DIMENSIONS:
17.78
(INCHES)
6.60 12.70 .79
(2 % TR)
(.700)
(.260) (.500 .031)
0.25
TOLERANCES: EXCEPT WHERE NOTED
22.86
Rotational Life...... 200 cycles (2 % TR)
(.010)
(.900)
Physical Characteristics
RT12C2Y
Torque............................. 5.0 oz-in. max.
Mechanical Stops ................. Wiper idles
Terminals ........ Solderable pins and lugs
Flexible leads ..... (7 strands of 30 AWG)
Weight ....................................... 0.10 oz.
1 2 3
Marking ......... Manufacturer s trademark,
7.62
6.35
(.300)
resistance code, terminal numbers,
(.250)
17.78
date code, manufacturers model
(.700)
number and style
Wiper ............... 50 % (Actual TR) 10 %
Flammability ..........................U.L. 94V-0 2.54
(.100)
Standard Packaging
P&Y Style .................. 10 pcs. per tube .71 .03
DIA. TYP.
(.028 .001)
L Style ........................ 25 pcs. per bag
12.70 .79
Adjustment Tool .............................. H-90
(.500 .031)
2.54
(.100)
REV. 04/14
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Trimpot is a registered trademark of Bourns, Inc.
Specications are subject to change without notice. Users should verify actual device performance in their specic
WARNING Cancer and Reproductive Harm
applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the
www.P65Warnings.ca.gov
last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns products manufactured by or on behalf of Bourns, Inc. and
)V\Y UZ P[ZHSPH[LZJVSSLJ[P]LS`
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[Y LU[ LSL]HU[PUMVYTH[PVUHUK]LYPM`[OH[Z\JOPUMVYTH[PVUPZJ\YY
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 VK\J[PUH\ZLYHWWSPJH[PVUTH`]HY` WY
VT[OLKH[HZOLL[JOHYHJ[LYPZ[PJZHUKWHYHTL[LYZK\L[VP[ MY OLJVTIPUH[PVUVM[OL)V\Y UZ product with other components
VUTLU[VM[OL\ZLY ZHWWSPJH[PVUVYPP[OLLU]PY PU[OL\ZLY HWWSPJH[PVUP[ZLSM;OLJOHYHJ[LYPZ[PJZHUKWHYHTL[LYZVMH)V \Y UZ
LU[HWWSPJH[PVUZHUKHJ[\H VK\J[HSZVJHUHUKKV]HY`PUKPLY WY SWLYMVYTHUJLTH`]HY`V]LY[PTL<ZLYZZOV\SKHS^H`Z]LYPM`
the actual performance of the Bourns VK\J[PU[OLPYZWLJPJKL]PJLZHUKHWWSPJH[PVUZHUKTHRL[O WY LPYV^UPUKLWLUKLU[
NPU[VKLZ KPUN[OLHTV\U[VMHKKP[PVUHS[LZ[THY LNHY Q\KNTLU[ZY PNUPU[V[OLPYKL]PJLVYHWWSPJH[PVU[VJVTWLUZH[LMVY
LHS^VYSKJVUKP[PVUZ LUJLZIL[^LLUSHIVYH[VY`HUKY KPLY
<USLZZ)V\Y UZOHZL_WSPJP[S`KLZPNUH[LKHUPUKP]PK\HS)V\Y UZ product as meeting the requirements of a particular industry
KLN0:6;: VYHWHY[PJ\SHYX\HSPJH[PVULN Z[HUKHY LZWVUZPISLMVYHU` LJVNUPaLK)V\Y UZPZUV[Y <3SPZ[LKVYY
LVMHUPUKP]PK\HS)V\Y UZ MHPS\Y KVY LTLU[ZVMZ\JOPUK\Z[Y`Z[HUKHY LX\PY VK\J[[VTLL[[OLY WY WHY[PJ\SHYX\HSPJH[PVU<ZLYZ
of Bourns products are responsible for ensuring compliance with safety-related requirements and standards applicable to
[OLPYKL]PJLZVYHWWSPJH[PVUZ
Bourns LJVTTLUKLKH\[OVYPaLKVYPU[LUKLKMVY\ZLP LUV[Y VK\J[ZHY WY SPMLZH]PUNSPMLJYP[PJHSVYSPMLZ\Z[HPUPUN UU\JSLHY
LVYTH LMHPS\Y HWWSPJH[PVUZUVYPUHU`V[OLYHWWSPJH[PVUZ^OLY VWL LWY KLH[OVYZL]LY LZ\S[PUWLYZVUHSPUQ\Y` SM\UJ[PVUTH`Y Y[`
LZZS`HUKZWLJPJHSS`HWWY VUTLU[HSKHTHNL<USLZZL_WY VYLU]PY LZLU[H[P]LZ LWY V]LKPU^YP[PUNI`[^VH\[OVYPaLK)V\Y UZY
on a case-by-case basis, use of any Bourns VK\J[ZPUZ\JO\UH\[OVYPaLKHWWSPJH[PVUZTPNO[UV[ILZHMLH WY UK[O\ZPZH[
ZZVSLYPZR3PMLJYP[PJHSHWWSPJH[PVUZPUJS\KLKL]PJ [OL\ZLY LZPKLU[PLKI`[OL<:-VVKHUK+Y\N(KTPUPZ[YH[PVUHZ*SHZZ 000
KL]PJLZHUKNLULYHSS`LX\P]HSLU[JSHZZPJH[PVUZV\[ZPKLVM[OL
LZZS`PKLU[PLZ[OVZL)V\Y )V\Y UZ UZL_WY LZ\P[HISLMVY\ZLPUH\[VTV[P]LHWWS VK\J[Z[OH[HY KWY Z[HUKHY PJH[PVUZVUZ\JO
VK\J[ZKH[HZOLL[ZPU[OLZLJ[PVULU[P[SLK(WWSPJH[PVUZ WY V]LKPU^YP[PUNI`[^V LZZS`HUKZWLJPJHSS`HWWY <USLZZL_WY
LZLU[H[P]LZVUHJHZLI`JHZLIHZPZ\ZL LWY H\[OVYPaLK)V\Y UZY VMHU`V[OLY)V\Y UZ VK\J[ZPUHUH\[VTV[P]L KWY Z[HUKHY
LJVTTLUKLKH\[O HWWSPJH[PVUTPNO[UV[ILZHMLHUK[O\ZPZUV[Y ZZVSLYPZR0M)V\Y UZ VYPaLKVYPU[LUKLKHUKPZH[[OL\ZLY
LZZS`PKLU[PLZHZ\IJH[LNVY`VMH\[VTV[P]LHWWSPJH[PVUPU L_WY VK\J[ZZ\JOHZPUMV[HPUTLU[ KWY [OLKH[HZOLL[MVYP[ZZ[HUKHY
L]PL^LK VYSPNO[PUNZ\JOPKLU[PJH[PVUTLHUZ[OH[)V\Y UZOHZY VK\J[HUKOHZKL[LYTPULK[OH[PMZ\JO)V\Y UZ KWY P[ZZ[HUKHY
LKMVYWV[LU[PHS\ZLPUH\[VTV[P]L VK\J[PZJVUZPKLY KWY Z[HUKHY HWWSPJH[PVUZP[ZOV\SKVUS`IL\ZLKPUZ\JOZ\IJH[LNVY`VM
LUJL[V)V\Y UZ LMLY H\[VTV[P]LHWWSPJH[PVUZ(U`Y VK\J[PU[OLKH[HZOLL[HZJVTWSPHU[^P[O[OL(,*8 KWY Z[HUKHY K Z[HUKHY
VYH\[VTV[P]LNYHKLKVLZUV[I`P[ZLSMTLHU[OH[)V\Y UZOHZH VK\J[MVY\ZLPUHUH\[VTV[P]LHWWSPJH[PVU V]LKZ\JOWY WWY
Bourns LUV[[LZ[LK[VJVTWS`^P[O<UP[LK:[H[LZ VK\J[ZHY KWY Z[HUKHY KZNLULYHSS` ]PH[PVU(KTPUPZ[YH[PVUZ[HUKHY -LKLYHS(
NHUPaH[PVUZ[H VYHU`V[OLYNLULYHSS`LX\P]HSLU[NV]LY UTLU[HSVY LKMVY VK\J[ZKLZPNULKVYTHU\MHJ[\Y KHWWSPJHISL[VWY UKHY
LZZS`PKLU[P JYHM[VYZWHJLHWWSPJH[PVUZ)V\Y \ZLPUHPYUZL_WY LZ)V\Y UZ standard products that are suitable for use in aircraft
VK\J[ZKH[HZOLL[ZPU[OLZLJ[ VYZWHJLHWWSPJH[PVUZVUZ\JOWY LZZS`HUKZWLJPJHSS` PVULU[P[SLK(WWSPJH[PVUZ<USLZZL_WY
LZLU[H[P]LZVU LWY V]LKPU^YP[PUNI`[^VH\[OVYPaLK)V\Y UZY HWWY HJHZLI`JHZLIHZPZ\ZLVMHU`V[OLY)V\Y UZ standard
JYHM[VYZWHJLHWWSPJH[PVUTPNO[UV[ILZHMLH VK\J[PUHUHPY WY LJVTTLUKLKH\[OVYPaLKVYPU[LUKLKHUKPZH[ UK[O\ZPZUV[Y
the users sole risk.
;OL\ZLHUKSL]LSVM[LZ[PUNHWWSPJHISL[V)V\Y UZ custom products shall be negotiated on a case-by-case basis by Bourns
and the user for which such Bourns L LZWLJPHSS`KLZPNULK(IZLU[H^YP[[LUHNY VK\J[ZHY J\Z[VTWY LTLU[IL[^LLU)V\Y UZ
KPUN[OL\ZLHUKSL]LSVMZ\JO[LZ[PUN[OLH LNHY HUK[OL\ZLYY V]PZPVUZHWWSPJHISL[V)V\Y UZ IV]LWY standard products shall
also apply to such Bourns custom products.
Users shall not sell, transfer, export or re-export any Bourns VK\J[ZVY[LJOUVSVN`MVY\ZLPUHJ[P]P[PLZ^OPJOPU]VS]L[OL WY
VK\J[PVU\ZLVYZ[VJRWPSPUNVMU\JSLHY KLZPNUKL]LSVWTLU[WY JOLTPJHSVYIPVSVNPJHS^LHWVUZVYTPZZPSLZUVYZOHSS[OL`\ZL
Bourns VK\J[ZVY[LJOUVSVN`PUHU`MHJPSP[`^OPJOLUNHNLZPUHJ[P]P WY LZ[YPJ[PVUZ LNVPUNY LSH[PUN[VZ\JOKL]PJLZ;OLMVY [PLZY
HWWS`[VHSS\ZLZHUKHWWSPJH[PVUZ[OH[]PVSH[LUH[PVUHSVYPU[ NVZVYPU[LY UH[PVUHS VOPIP[PVUZPUJS\KPUNLTIHY LY UH[PVUHSWY
)V\Y UZ LN\SH[PVUZ-\Y[OLY Y 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
VT)V\Y UZHUKVY[OL<:.V]LY WYPVYH\[OVYPaH[PVUMY UTLU[IL LL_WVY[LK[VHU`WHY[`UV[LSPNPISL LKVYY LZVSK[YHUZMLYY Y
LHUK[LJOUPJHSKH[H LJLP]L<:JVTTVKP[PLZZVM[^HY [VY
;
JOHU[ VM[ULZZMVYWHY[PJ\SHYW\YWVZLUVUPUMYPUNLTLU[HUKTLY HIPSP[`
)RU\RXUFRQYHQLHQFHFRSLHVRIWKLV/HJDO'LVFODLPHU1RWLFHZL UDGLWLRQDO&KLQHVHDQG6LPSOLHG 7 WK*HUPDQ6SDQLVK-DSDQHVH &KLQHVH
bilingual versions are available at:
Web Page: