MAR Datasheet, PDF (1/2 Pages) Illinois Capacitor, Inc. – Small size – Good dvdt – Medium current

R_Ue_ls_ti_rs_ato_Prs_recision
U_Mlt_era_taP_l r_Fec_ili_msio_Rn_esistors
Metal Film Resistors
MAR 40/42 series
M_•A_TR_o4_l0_e/_r4_a2 _nse_cr_eies_{down to 0.005%}
• T^Vo^ele^ryran^loc^we d^To^Cw^Rn^sto 0.005%
• ^{VReurgygloewdTmCRosulded protection}
• ^{RMuaggtcehdemdosueldtsedapvraoitleacbtlieon}
Matched sets available
Make Possible
Welwyn Components
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
Electrical Data
Power rating at 85°C
Resistance range
Limiting element voltage
TCR (0°C to +60°C)
TCR (-55°C to +125°C)
Resistance tolerance
Standard values
Thermal impedance
Ambient temperature range
watts
ohms
volts
ppm/°C
ppm/°C
%
°C/watt
°C
0.3
20R0 to 400K
250
2 (T18) & 5 (T16)
5 (T18) & 10 (T16)
0.005, 0.01, 0.02, 0.05, 0.1, 0.25, 0.5 & 1
E24, E96 preferred
80
- 55 to +155
Notes
Higher values by agreement
Any value to order
Physical Data
Dimensions (mm) and Weight (g)
Type
MAR 40
MAR 42
L max.
7.75
8.25
H max.
8.64
8.64
W max.
3.3
3.3
T min.
25.4
25.4
d nom.
0.6
0.6
S nom.
3.8
5.1
Wt.
nom.
0.65
0.65
L
H
T
S
W
d
Construction
Ceramic rods are coated with a metal film and plated steel
caps are force fitted. A helical cut is used to adjust the film to
its final value. Termination wires are welded to the caps and
the resistor is protected with a multiple lacquer coat and
encapsulated in an epoxy moulded protection.
Terminations
Material
Solder-coated copper wire.
Strength
The terminations meet requirements of
IEC 68.2.21 and MIL-STD 1276.
Solderability The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2 and MIL-STD 202.
Marking
Type reference, TCR code, resistance value and tolerance. The
resistance value marking conforms to IEC 62.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning fluids suitable for printed circuits.
G_Ge_en_ne_era_ral N_{l N}ot_oe_te
T_WT _eEl_le_wc_ytr_non_Ci_ocs_mre_ps_oe_nrv_ee_ns_tsth_re_esri_eg_rh_vt_esto_thm_ea_rk_ie_ghch_ta_tn_og_mes_ai_kn_ep_cro_hd_au_nc_gt_es_spe_inci_pfic_roa_dti_uon_ctw_si_pth_eo_ciu_ft_icn_ao_tit_oic_ne _wor_itli_ha_ob_uil_tity_n._{otice or liability.}
A_All_li_ln_if_no_fr_om_rmat_aio_tin_oi_ns s_isub_suje_bc_jt_et_co_t T_toT E_Wle_ec_lt_wro_yn_ni_’c_ss’_oo_ww_nn_dd_aa_tt_aa _aa_nn_dd i_is_s c_co_on_ns_si_id_de_er_re_ed_da_ac_cc_cu_ura_rt_ae_teat_at_tim_time o_ef_og_fo_gin_og_int_go p_torin_pt_r. _int.
©^©T^WT E^el^le^wct^yroⁿn^Cic^os ^mplc^{ponents Limited · Bedlington, Northumberland NE22 7AA, UK}
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
A subsidiary of
www.ttelectr_To_Tni_ec_ls_er_ce_ts_ri_ost_no_ir_cs_s.c_po_lm_c
Issue B · 03.02
07.14