Capacitors with Screw Terminals B 43 456
Optimized range
85 C B 43 458
LL grade
Compact high-voltage type
For professional power supplies
Construction
l Charge-discharge proof, polar
l Aluminum case with insulating sleeve
l Poles with screw terminal connections
l Mounting with ring clips, clamps or threaded stud
l The bases of types with threaded stud and d 76,9 mm are
B 43 458 B 43 456
not insulated, types with d = 91 mm have fully insulated bases
Features
l Very compact, i. e. high CU product
l High reliability and ripple current capability
l All-welded construction ensures reliable electrical contact
l Type with optimized construction for base cooling upon request
Applications
l Professional power supplies
l For switch-mode power supplies in industrial electronics
Specifications and characteristics in brief
Rated voltage U 350 to 450 V
R
Surge voltage U 1,10 U
S R
Rated capacitance C 1 000 to 18 000 m F
R
Capacitance tolerance 20 % M
Useful life
40 C, U > 250 000 h (1,5 I~ )
R R,85 C
85 C, U , I~ > 12 000 h
R R
Failure percentage 1 %
(during useful life)
Failure rate 40 fit
9
( 40 10 /h)
Voltage endurance test 2 000 h, 85 C
(at U )
R
Leakage current I
lka
0,7
C U
R R
(5 min, 20 C) I 0,3 m A -------- -------- + 4 m A
lka
m F V
Self-inductance L approx. 20 nH
ESL
IEC climatic category in accordance with IEC 68-1
400 V: 40/085/56 (40 C/+85 C, 56 days damp heat test)
450 V: 25/085/56 (25 C/+85 C, 56 days damp heat test)
82 Siemens Matsushita ComponentsB 43 456
Optimized range
B 43 458
Specifications and characteristics in brief
Detail specifications similar to CECC 30 301-803, CECC 30 301-807
Sectional specification IEC 384-4
Vibration resistance in accordance with IEC 68-26, test Fc:
displacement amplitude 0,75 mm, frequency range 10 to 55 Hz,
acceleration max. 10 g, duration 3 2 h
Due to the current load capability of the contact elements, the following current limits must not be
exceeded, even if the frequency and temperature factors have been taken into account:
Capacitor diameter 51,6 mm 64,3 mm 76,9 mm 91,0 mm
Maximum current 30 A 40 A 50 A 70 A
Accessories
The following items are included in the delivery package, but are not fastened to the capacitors:
Thread Toothed Screws/Nuts Maximum
washers torque
For terminals M 5 A 5,1 DIN 6797 Cylinder-head screw M 5 8 DIN 84-4.8 2 Nm
M 6 A 6,4 DIN 6797 Cylinder-head screw M 6 12 DIN 85-4.8 2,5 Nm
For mounting M 12 J 12,5 DIN 6797 Hex nut BM 12 DIN 439 10 Nm
The following must be ordered separately:
Ring clips B 44 030 (cf. page 148)
Clamps for capacitors with d 64,3 mm B 44 030 (cf. page 152)
Insulating parts B 44 020 (cf. page 145)
Siemens Matsushita Components 83