具体参数以规格书为准

Ceramic transient voltage suppressors
Leaded transient voltage/RFI suppressors (SHCVs)
Series/Type:
Date: August 2011
© EPCOS AG 2011. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.EPCOS type designation system for leaded transient voltage / RFI suppressors
SR 1 S 14 B M 474 X G
SR Leaded,
SHCV series
EIA case sizes of used chips:
6 12 x 06 / 3.2 x 1.6 mm
1 18 x 12 / 4.5 x 3.2 mm
2 22 x 20 / 5.7 x 5.0 mm
Varistor voltage tolerance:
K ±10%
S Special tolerance
Maximum RMS operating voltage (VRMS):
14 14 V
Special varistor voltage tolerance:
B Special tolerance
Capacitance tolerance:
M ±20%
Capacitance value:
474 47 104 pF 0.47 µF
Capacitor ceramic:
X X7R
Taping mode:
G Taped version
Bulk
Leaded transient voltage/RFI suppressors (SHCVs)
SHCV series
Page 2 of 29 Please read Cautions and warnings and
Important notes at the end of this document.Features
RFI noise suppression and transient overvoltage protection integrated in a
single component
Reliable protection against automotive transients such as load dump and
jump start (for SR1 and SR2 types)
High capacitance (up to 4.7 µF)
Low clamping voltage
RoHS-compatible
Suitable for lead-free soldering
PSpice simulation models available
Applications
RFI noise suppression and transient overvoltage protection on DC lines of
small motors, windscreen wipers, window lifters, mirrors, central locking,
memory seat, sunroof
Design
Combination of multilayer RF filter capacitor and multilayer varistor
Coating: flame-retardant to UL 94 V0, epoxy resin
Terminals: tinned iron wire, RoHS-compatible
V/I characteristics and derating curves
V/I and derating curves are attached to the data sheet. The curves are sorted
by VRMS and then by case size, which is included in the type designation.
General technical data
Maximum RMS operating voltage VRMS,max 14 ... 35 V
Maximum DC operating voltage VDC,max 16 ... 45 V
Maximum surge current (8/20 µs) Isurge,max 100 ... 1200 A
Maximum load dump energy (10 pulses) WLD 1.5 ... 12 J
Maximum jump start voltage (5 min) Vjump 24.5 ... 26 V
Maximum clamping voltage (8/20 µs) Vclamp,max 38 ... 90 V
Nominal capacitance (1 kHz, 0.5 V) Cnom 220 ... 4700 nF
Insulation resistance Rins ≥ 10 M?
Response time tresp < 25 ns
Operating temperature Top 55/+125 °C
Storage temperature LCT/UCT 55/+150 °C
Leaded transient voltage/RFI suppressors (SHCVs)
SHCV series
Page 3 of 29 Please read Cautions and warnings and
Important notes at the end of this document.Temperature derating
Climatic category: 55/+125 °C
Leaded transient voltage/RFI suppressors (SHCVs)
SHCV series
Page 4 of 29 Please read Cautions and warnings and
Important notes at the end of this document.Electrical specifications and ordering codes
Maximum ratings (Top,max = 125 °C)
Type Ordering code VRMS,max
V
VDC,max
V
Isurge,max
(8/20 µs)
A
Wmax
(2 ms)
mJ
WLD
(10
pulses)
J
Pdiss,max
mW
SR1S14BM105X B72587G3140S200 14 16 800 2400 6 15
SR1S14BM155X B72587H3140S200 14 16 800 2400 6 15
SR1S14BM474X B72587E3140S200 14 16 800 2400 6 15
SR2S14BM155X B72547H3140S200 14 16 1200 5800 12 30