Reference Specification
DHR Series
High Voltage Lead Type Disc Ceramic Capacitors for General Purpose
Product specifications in this catalog are as of Feb. 2018, and are subject to change or
obsolescence without notice.
Please consult the approval sheet before ordering.Please read rating and Cautions first.
Reference only
CAUTION
1.OPERATING
VOLTAGE
When DC- rated capacitors are to be used in AC or ripple current circuits, be sure to maintain the Vp-p
value of the applied voltage or the Vo-p which contains DC bias within the rated voltage range. When the
voltage is started to apply to the circuit or it is stopped applying, the irregular voltage may be generated
for a transit period because of resonance or switching. Be sure to use a capacitor within rated voltage
containing these irregular voltage.
Voltage
Positional
Measurement
Vo-p
Vo-p
Vp-p
Vp-p
Vp-p
DC Voltage
DC+AC Voltage
AC Voltage
Pulse Voltage(1)
Pulse Voltage(2)
2.
OPERATING TEMPERATURE AND SELF-GENERATED HEAT
Keep the surface temperature of a capacitor below the upper limit of its rated operating temperature
range. Be sure to take into account the heat generated by the capacitor itself.
When the capacitor is used in a high-frequency current, pulse current or the like, it may have the
self-generated heat due to dielectric-loss. Applied voltage should be the load such as self-generated
heat is within 20
C
on the condition of atmosphere temperature 25
C.
When measuring, use a
thermocouple of small thermal capacity-K of
0.1mm
and be in the condition where capacitor is not affected
by radiant heat of other components and wind of surroundings.
Excessive heat may lead to deterioration of the capacitor’s characteristics and reliability.(Never
attempt to perform measurement with the cooling fan running. Otherwise, accurate measurement
cannot be ensured.)
3. OPERATING AND STORAGE ENVIRONMENT
The insulating coating of capacitors does not form a perfect seal; therefore, do not use or store
capacitors in a corrosive atmosphere, especially where chloride gas, sulfide gas, acid, alkali, salt or the
like are present. And avoid exposure to moisture. The capacitor is designed to be used in the
insulating media, such as epoxy resin, silicone oil, etc.. There must be 3mm or more
insulating media for each direction of the capacitor. In case of cleaning, bonding, or molding
this product, verify that these processes do not affect product quality by testing the
performance of a cleaned, bonded or molded product in the intended equipment. Store the
capacitors where the temperature and relative humidity do not exceed -10 to 40 °C and 15 to 85. Use
capacitors within 6 months after delivered.
4. BONDING, RESIN MOLDING AND COATING, BOARD TO AVOID
In case of bonding, molding or coating this product, verify that these processes do not affect the quality
of capacitor by testing the performance of the bonded, molded or coated product in the intended
equipment.
In case of the amount of applications, dryness / hardening conditions of adhesives and molding resins
containing organic solvents (ethyl acetate, methyl ethyl ketone, toluene, etc.) are unsuitable, the outer
coating resin of a capacitor is damaged by the organic solvents and it may result, worst case, in a short
circuit.
The variation in thickness of adhesive, molding resin or coating may cause a outer coating resin
cracking and/or ceramic element cracking of a capacitor in a temperature cycling.
Resin material to hot conditions (over
C
100) was weaker to intensity. So such with board to avoid
mechanical stress in this state, please handle it with care.
5. VIBRATION AND IMPACT
Do not expose a capacitor or its leads to excessive shock or vibration during use.
EGDR01A
-1-
Reference only
6. SOLDERING
When soldering this product to a PCB/PWB, do not exceed the solder heat resistance specification of
the capacitor. Subjecting this product to excessive heating could melt the internal junction solder and
may result in thermal shocks that can crack the ceramic element.
When soldering capacitor with a soldering iron, it should be performed in following conditions.
Temperature of iron-tip : 400
C
max.
Soldering iron wattage : 50W max.
Soldering time
: 3.5s max.
Failure to follow the above cautions may result, worst case, in a short circuit and cause fuming or
partial dispersion when the product is used.
7.
Limitation of Applications
Please contact us before using our products for the applications listed below which require especially high
reliability for the prevention of defects which might directly cause damage to the third party's life, body or
property.
Aircraft
equipment
Aerospace
equipment
Undersea
equipment
Power
plant control equipment
Medical
equipment
Transportation
equipment(vehicles, trains, ships, etc.)
Traffic
signal equipment
Disaster
prevention / crime prevention equipment
Data-processing
equipment
Application
of similar complexity and/or reliability requirements to the applications listed in the above.
NOTICE
Cleaning
To perform ultrasonic cleaning, observe the following conditions.
Rinse bath capacity : Output of 20 watts per liter or less.
Rinsing time : 5min maximum.
Do not vibrate the PCB/PWB directly.
Excessive ultrasonic cleaning may lead to fatigue destruction of the lead wires.
Capacitance change of capacitor
• Class 1 capacitors
Capacitance might change a little depending on a surrounding temperature or an applied voltage. Please
contact us if you use for the strict time constant circuit.
• Class 2 and 3 capacitors
Class 2 and 3 capacitors like temperature characteristic B, E and F have an aging characteristic, whereby
the capacitor continually decreases its capacitance slightly if the capacitor leaves for a long time..
Moreover, capacitance might change greatly depending on a surrounding temperature or an applied
voltage. So, it is not likely to be able to use for the time constant circuit. Please contact us if you need a
detail information.
NOTE
1. Please make sure that your product has been evaluated in view of your specifications with our product
being mounted to your product.
2. You are requested not to use our product deviating from this specification.
EGDR01A
-2-
Reference only
1.Application
This specification is applied to High Voltage Lead Type Disc Ceramic Capacitors DHR series
used for General Electric equipment.
Do not use these products in any automotive power train or safety equipment including battery
chargers for electric vehicles and plug-in hybrids.
2.Rating
2.1 Operating temperature
-25°C to +100°C
2.2 Part number configuration
DHR
B3
4A
Series
Temperature
characteristic
Rated
voltage
102
Capacitance
M
Capacitance
tolerance
2B
Lead
code
B
Packing
style code
• Temperature characteristic
Code
Temperature characteristic
B3
B
Please confirm detailed specification on [ 5. Specification and test methods].
• Rated voltage
Code
4A
4B
4C
Rated voltage
DC10kV
DC12kV
DC15kV
• Capacitance
The first two digits denote significant figures ; the last digit denotes the multiplier of 10 in pF.
ex.) In case of 102.
10
10
2
= 1000pF
• Capacitance tolerance
Please refer to [ 4. Part number list ].
• Lead code
Code
Lead style
2B
Straight long
2F
Please refer to [ 4. Part number list ].
Solder coated copper wire is applied for termination.
• Packing code
Code
B
Packing type
Bulk type
-3-
Reference only
3. Marking
Temperarure
Characteristic : marked with code.
(Omitted for nominal body dia. ø10max.)
(Example)
Capacitance
: marked with 3 figures.
Cap.
tolerance : marked with code.
(Omitted for nominal body dia. ø8max.)
102M B
10K
7040
Rated
Voltage: marked with letter code.
Manufacturer’s
identification : Abbreviation
(Omitted for nominal body dia. ø14max.)
Manufactuered
Date : marked with code.
(Omitted for nominal body dia. ø14max.)
ex. 7 04 0
1) The last number of A.D. year
1) 2) 3)
2) 2 numbers of the month
January→01, … , December→12
3) Fix No.
4.Part number List
. max
D
D+1max.
T max.
4.0 max.
L min.
ød±0.05
F±2
Unit:mm
Temp.
Char.
Cap.
(pF)
Cap.
tol.
(%)
DC
Rated.
volt.
(kV)
Dimensions (mm)
Lead Pack
code qty.
Customer part number
Murata Part number
D
8.0
8.0
9.0
10.0
12.0
13.0
15.0
8.0
9.0
9.0
11.0
12.0
14.0
16.0
8.0
9.0
10.0
12.0
13.0
15.0
18.0
T
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.7
7.5
7.5
7.5
7.5
7.5
7.5
8.5
8.2
8.2
8.2
8.2
8.2
8.2
F
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
12.7
L
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
d
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.8
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
100 ±20
150 ±20
220 ±20
330 ±20
470 ±20
680 ±20
1000 ±20
100 ±20
150 ±20
220 ±20
330 ±20
470 ±20
680 ±20
1000 ±20
100 ±20
150 ±20
220 ±20
330 ±20
470 ±20
680 ±20
1000 ±20
DHRB34A101M2BB
DHRB34A151M2BB
DHRB34A221M2BB
DHRB34A331M2BB
DHRB34A471M2BB
DHRB34A681M2BB
DHRB34A102M2BB
DHRB34B101M2BB
DHRB34B151M2BB
DHRB34B221M2BB
DHRB34B331M2BB
DHRB34B471M2BB
DHRB34B681M2BB
DHRB34B102M2BB
DHRB34C101M2BB
DHRB34C151M2BB
DHRB34C221M2BB
DHRB34C331M2BB
DHRB34C471M2BB
DHRB34C681M2BB
DHRB34C102M2FB
10
10
10
10
10
10
10
12
12
12
12
12
12
12
15
15
15
15
15
15
15
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2B
2F
200
200
100
100
100
50
50
200
100
100
100
100
50
50
200
100
100
100
50
50
50
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