Series CMC 3, 10, 25, 50 Watt Wirewound, Aluminum-Housed, Axial-Lead Resistors Description The CMC series is an exceptionally stable and versatile resistor, The metal housing offers high durability to withstand vibration, shock and harsh environmental conditions. It also offers heat-sinking capabilities and chassis mounting options, Made to MIL-R-18546 standards, the CMC series is axial-lead style, with SUPerior Power ratings, Features Al molded and welded constructian Screw mounts on chassis surface *Cnlize heat-sink capability Complete protection against environment "Exceeds MIL-R-[ 4546 standards Series CMC Material Specifications PMOUSULE Anodized aluminum fiternal Coating Silicone Care Ceramic Terminals Copperweld, tinned, axial-lead Wienodit CMCS CMCIO CMC25 CMCSO 5 watts LO watts 25 watts 50) watts LI oe. 20 O02, 5 OZ, LO oz. 3 pms, / gms. l4 ems. 29 ems SCUCEM Mea e trimer iii ied i tait a Resistance Tolerance +1: standard Power Rating Based on 275C maximum hotspot at 25C ambient temperature Charest i Co varstas AgiT Series Series Wattage Requirement ChitcS EAs 4 5 (ha 1 REAIG Ih ttl CMC25 REFMG ab At) CMCS0 RETSaG sh La f "1 1 a Mel fi edi Si tk ag fe ate PA 4 4% 6% 2 x 0.040 aluminum chasses Sx 7x 2x 0.040 aluminum chassis 5 & 10 watt units 29 4 50 walt units Deratine CMC resistors are rated to operate with a 275C maximum hotspot under full rated power at 24C ambient temperature per MIL-R-18546, They must be derated for higher ambient temperature per Wattage Vs Ambient Temperature Derating Curve. Figure | series CMC Derating WATTAGE VS AMAT SEMPERATLE ORATION: Ts = Loa SCECEMT RATET & a x = 15 or Lh AREGEHT TOMPCRTIE IW DEGREES OENTIGRALE ee _ _ PATE OM ALUMI OHA UN-AAATED Meetical Speciiicatinty cominned, mec pare 1/1 Cicetvoal Sprcdiections coniinaed 4 . Dperiinag ine Peake Fey eat faye A a ' Orrin Gri air Lae pees Sl pps i under | olin *L) pep Cot ootien to Yk hee nate ppm! {- Lhloashens and ewer Dielectric Wii [UR AD Wy Pry " tore re pee I idl saricl LO) ware rating Yee 2" sol U) wart paipne Pirure 2 senes CMC Dimensigns po Polerance iehes aw wis inal ay elo eh aU MCA ces wig jan tl ts ee | |Z 14 (Ni. 1 iri 1 4 im! Oo. ul Ny bw [os : Vt! .25 nice i Il | ti Pree it }4).2 16.07 Tone Tor 3 seco bl: ta . 1 ys +44 F ' ic ee a Lafa te Moy ya -4 SLI "4 ct dl ri) 1 sal) a o 14 ri lta) iis i f i 1 *| hl lid Lo eit ty ~ 4 hm roiddes redo tps tt i Vi rat Ss roi lr i 1s iy! ql i i ah 1 Ls ST CeAM LMS EET Ce ee tc lt ae stock Values (Ohms) Series CME.4/ REGO * LM 1.4 Sil a0) 21M} AAG tM) 20 10 AQ) 250 LK 499 0 14 o1) 40K) L.5K 1K) 4.0) Ay hou 400 2K | (KI 0 245 10 S00) 2.5K Series CMIC-1IORKEGSG* a | 35 {Hh 400 7K 4.5K | 5 Mt) | 4a} 400 25K 5K 1.5 1a 4) MH} 75) 4h 2 15 Atl 250) ik 4A ; 4 ie 4tK Lak AK Seres CMC-25/RE7RG* | L 3 4 25 PO) SOC) 4K 3 Z 1) Ag) 150) IS) LOK cel be 40 A00 lk 5 St) 2) LK | & 0 Py ee ak. Series CMC-SVRETSG* | ! 10 Ms ALA iA a i 15 fii Sik 4K a 4 2 a0) Lk hoK i 5 41 {0 LOK ISk | 2 Sy) 250 7K 25K Agate Units are dual nuarked with both commercial and AEG PT ae ers SCC MAM CM eT Commercial (larostat Serves + Resistance Value = Part Number Laaniple A werkt: + CMCS-10 1 ohn Military Military Designator + wattage + temperature characters tolerance + resistance Value + resistance Part ruunnites Example if S watts; REGO + G+ LORD + | REGOC LOROF RE=Military Designater b= Wattage Ge=Temperature Characteristic LWUskResmtance Value PFeResistance Tolerance 1a