BK1-H SERIES
Spark Gap (SPG) Data Sheet
Features
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Approximately zero leaking current before clamping voltage
Less decay at on/off state.
High capability to withstand repeated lightning strikes.
Low electrode capacitance(≤1.0pF) and high isolation(≥100MΩ).
RoHS compliant.
Bilateral symmetrical.
Temperature, humidity and lightness insensitive.
No dark effect.
Operating temperature: -40℃ ~ +85℃
Storage temperature: -40℃ ~ +125℃
Meets MSL level 1, per J-STD-020
Safety certification: UL: E472693
Applications
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Power Supplies
Motor sparks eliminating
Relay switching spark absorbing
Data line pulse guarding
Electronic devices requiring UL497A and UL497B compliant
Telephone/Fax/Modem
High frequency signal transmitters/receivers
Satellite antenna
Radio amplifiers
Alarm systems
Cathode ray tubes in Monitors/TVs
Dimensions
Symbol
L
D
d
Color code 1
Color code 2
Color code 3
Dimension (mm)
9.0±
1.5
28.0±
3.0
Φ4.1±
0.5
Φ0.5±
0.05
L1
D
L1
L
L1
d
Revision：SPG-BK1-H SERIES-001(A2)
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BK1-H SERIES
Electrical Characteristics
DC
Spark-over
Voltage
Vs(V)
BK1XX05002
BK1XX07502
BK1XX09002
BK1XX10002
BK1XX12002
BK1XX13502
BK1XX15002
BK1XX18002
BK1XX20002
BK1XX22502
BK1XX25002
H
H
H
H
H
H
H
H
H
H
H
1000
1500
1800
2000
2400
2700
3000
3600
4000
4500
5000
Part Number
Type
①
②
Minimum
Insulation
Resistance
Test
Voltage(V)
500
500
500
500
500
500
500
500
500
500
500
IR
OHM
(MΩ)
100
100
100
100
100
100
100
100
100
100
100
Maximum
Capacitance
(1KHz-6V
MAX
)
C(pf)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Surge
Current
Capacity
(8/20μs)
3000A
3000A
3000A
3000A
3000A
3000A
3000A
3000A
3000A
3000A
3000A
AC
Withstanding
Voltage
-
-
-
-
AC1200V, 3sec.
AC1200V, 3sec.
AC1500V, 3min.
AC1800V, 3sec.
AC1800V, 3sec.
AC2000V, 1min.
AC2000V, 1min.
Note：① Vs±
XX%
②
Specific code by request.
Color Code
Part Number
BK1XX05002
BK1XX07502
BK1XX09002
BK1XX10002
BK1XX12002
BK1XX13502
BK1XX15002
BK1XX18002
BK1XX20002
BK1XX22502
BK1XX25002
Type
H
H
H
H
H
H
H
H
H
H
H
Color Code 1
Brown
Brown
Brown
Red
Red
Red
Orange
Orange
Yellow
Yellow
Green
2/5
Color Code 2
Black
Green
Gray
Black
Yellow
Purple
Black
Blue
Black
Green
Black
Color Code 3
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Revision：SPG-BK1-H SERIES-001(A2)
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BK1-H SERIES
Test Methods and Results
Items
Test Method
Measure starting discharge voltage (Vs) by
gradually increasing applied DC voltage. Test
current is 0.5mA max. And the DC voltage
ascends up within 500V/second.
Measure the insulation resistance across the
terminal at regular voltage. But the test voltage
doesn’t over the DC spark-over voltage.
Measure the electrostatic capacitance by
applying a voltage of less than 6V (at 1KHz)
between terminals.
Charge a 1.2/50μs & 8/20μs, 2000A, and apply
it to the sample. Do this 10 time. Or 3000A, 1
time.
Apply a standard impulse current (8/20μs of
100A) for 300 times at 60 seconds intervals.
Measurement after -40℃/1000 HRS & normal
temperature/2 HRS.
Measurement after 125℃/1000 HRS & normal
temperature/2 HRS.
Measurement after humidity 90~95℃(45℃)
/1000 HRS & normal temperature/2 HRS.
10 times repetition of cycle -40℃/30min
→normal, temp/2 min →125℃/30min,
measurement after normal temp/2 HRS.
Apply flux and immerse in molten solder
230±
5℃ for 3sec up to the point of 1.5mm from
body. Check for solder adhesion.
Measurement after lead wire is dipped up to
the point of 1.5mm from body into 260±
5℃
solder for 10sec.
Apply 0.5kg load for 10sec.
Bend lead wire at the point of 2mm from body
under 0.25 load and back to its original point.
Repeat 1 time.
Lead shall not pull out to snap.
Lead wire is evenly covered by solder.
Features are conformed to rated
spec.
Meet specified value.
Standard
DC Spark-over
Voltage
Insulation
Resistance
Capacitance
Surge Current
Capacity
Surge Life
No crack and no failures
Cold Resistance
Heat Resistance
Humidity Resistance
Temperature Cycle
Solder Ability
Solder Heat
Conformed to rated spec.
Pull Strength
Flexural Strength
Revision：SPG-BK1-H SERIES-001(A2)
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BK1-H SERIES
Recommended Soldering Conditions
Flow Soldering Conditions
Air Priheat
Soldering
260℃
250
△T
△T
Temperature (℃)
Reflow Soldering Conditions
Cooling
250
Air Priheat
Soldering
260℃
Cooling
200
Temperature (℃)
200
150
150~180℃
100
150
150~180℃
100
50
50
0
0
60~120 sec
3~4 sec
60~120 sec
10 sec. or less
60 sec. or less
1) Time shown in the above figures is measured from the point when chip surface reaches temperature.
2) Temperature difference in high temperature part should be within 110℃.
3) After soldering, do not force cool, allow the parts to cool gradually.
Hand Soldering
Solder iron temperature: 350±
5℃
Heating time: 3 seconds max.
General attention to soldering
● High soldering temperatures and long soldering times can cause leaching of the termination, decrease in
adherence strength, and the change of characteristic may occur.
● For soldering, please refer to the soldering curves above. However, please keep exposures to temperatures
exceeding 200℃ to fewer than 50 seconds.
● Please use a mild flux (containing less than 0.2wt% CI). Also, if the flux is water soluble, be sure to wash
thoroughly to remove any residue from the underside of components that could affect resistance.
Cleaning
When using ultrasonic cleaning, the board may resonate if the output power is too high. Since this vibration can
cause cracking or a decrease in the adherence of the termination, we recommend that you use the conditions
below.
Frequency: 40kHz max.
Output power: 20W/liter
Cleaning time: 5 minutes max.
Revision：SPG-BK1-H SERIES-001(A2)
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BK1-H SERIES
Packaging
Tape
L
R
D
P
Z
D1
Symbol
W
P
L1-L2
T
Z
R
t
Dimension (mm)
52.0±
1.5
10.0±
0.5
1.0max.
6.0±
1.0
1.2max.
Terminals must not project from tape.
3.2max.
0.8max.
Φ4.6max.
Φ0.5±0.05
10.5max.
75.0±
5.0
114.0±
5.0
250.0±
5.0
t
S
L1
S
T
W
L2
T
S
D
D1
L
Inner Box
A
B
C
C
A
B
Quantity: 1000PCS
Revision：SPG-BK1-H SERIES-001(A2)
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