V700 Datasheet, PDF (1/3 Pages) Welwyn Components Limited – Vitreous Enamelled Wirewound Resistors

VittrreeoouussEEnanmamelleldled
Wi_ir_re_ew_wo_ou_un_nd_dR_Res_eis_st_io_sr_ts_ors
V700 (RB Style) Series
V700 (RB Style) Series
·_{s S}S_tt_aa_bb_ii_ll_ii_tt_yy _ff_oo_rr _hh_aa_rr_ss_hh _ee_nn_vv_ii_rr_oo_nn_mm_ee_nn_tt_ss
··_s
O^Ov^ve^er^rl^lo^oa^ad^d c^ch^ha^ar^ra^ac^ct^te^er^riⁱs^st^tiⁱc^cs^s iⁱd^de^ea^al^l
p^Hrⁱo^gt^hec^st^ti^ao^bn^ilc^iti^yrc^auⁿit^ds ^reliability
f^fo^or^r
protection
circuits
· High power dissipation for size
·^{s H}Im^igp^her^sv^taio^bu^ils^itl^yea^ad^ndfre^ree^liv^ai^btr^ile^ito^yus enamel coating
OBSOLETE ^{s High power dissipation for size}
s ^{Impervious lead free vitreous enamel coating}
(RB58 & RB60 ONLY)
Welwyn Components
Electrical Data
Power rating at 25°C
Resistance range
Limiting element voltage
TCR
Resistance tolerance
Standard values
Thermal impedance
Ambient temperature range
watts
ohms
volts
ppm/°C
%
°C/watt
°C
V757
V758
V759
V760
V761
(RB57)
(RB58)
(RB59)
(RB60)
(RB61)
7
11.0
3.0
8.0
5.0
0R1 to 20K 0R2 to 82K 0R1 to 10K 0R1 to 56K 0R1 to 15K
200
400
100
250
160
Typically: +75
Maximum +120
5 Closer tolerances to special order
E24 preferred. Other values to special order
44
32
88
36
58
-55 to 200
Physical Data
Maximum Dimensions (mm) and Weight (g)
Type
L max D max f min
V757 (RB57) 22.2
8
30
V758 (RB58) 47
11
30
V759 (RB59) 12.7
5.6
30
V760 (RB60) 36
10.0
30
V761 (RB61) 23
7.0
30
d max
0.88
0.88
0.88
0.88
0.88
Wt. Nom
2
9
1
4
2
dD
L
f
Construction
A high purity ceramic substrate is assembled with force fit
end caps to which are welded the termination wires.
The resistive element is wound on the substrate and welded to
the caps; the vitreous enamel protective coating is then applied.
General Note
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A^Al^ll^l iⁱnⁿf^fo^or^rm^ma^at^tiⁱo^onⁿ iⁱs^s s^su^ub^bj^je^ec^ct^t t^to^o T^WT ^ee^ll^wec^ytⁿro^’sn^oic^ws’ⁿo^dw^an^tad^aaⁿta^d a^isn^cd^oiⁿs^sc^ido^en^rs^eid^de^are^cd^cua^rc^ac^tu^er^aa^tte^tia^mt^eti^om^fe^go^ofⁱⁿg^goi^tn^og^pt^roⁱⁿp^t.rint.
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© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
©TeleTpThoenlee:c+t4r4o(n0i)c1s67p0lc822181 · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
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