P
D
= 1 W
Transient Voltage Suppressor
SJPZ-K28
Description
The SJPZ-K28 is a power Zener diode designed for
the protection of automotive electronic units, especially
from the surge generated during load dump conditions
and voltage transients induced by inductive loads.
Data Sheet
Package
SJP
Features
●
●
●
●
●
●
●
●
●
V
Z
----------------------------------------------- 2 5 V to 31 V
P
RSM
----------------------50 W (5 ms, single block pulse)
P
D
----------------------------------------------------------- 1 W
AEC-Q101 Qualified
Meets the Surge Protection Requirements in
ISO7637-2 Standard (Pulse 1 to 3)
High Reliability
High Surge Capability
Flammability UL94V-0 (Equivalent)
RoHS Compliant
(1)
(2)
(1)
(2)
(1) Cathode
(2) Anode
Not to scale
Applications
Protection of sensitive electronic equipment in
passenger cars, trucks, vans, and buses:
●
●
●
●
●
●
Engine Control Units
Electric Control Units
Braking System
Power Steering System
Airbags
Audio/Infotainment Equipment
Typical Application
Key
Battery
Load
Surge Absorber
SJPZ-K28
GND
SJPZ-K28-DSE Rev.1.2
SANKEN ELECTRIC CO., LTD.
Feb. 28, 2017
http://www.sanken-ele.co.jp/en/
© SANKEN ELECTRIC CO., LTD. 2016
1
SJPZ-K28
Absolute Maximum Ratings
Unless otherwise specified, T
A
= 25 °C.
Parameter
Symbol
Power Dissipation
(1)
DC Blocking Voltage
Peak Reverse Power
Junction Temperature
Storage Temperature
P
D
V
DC
P
RSM
T
J
T
STG
5 ms, single block pulse
Conditions
Lead temperature, T
L(2)
Rating
1
20
50
−40 to 150
−4 0 to 150
Unit
W
V
W
°C
°C
Remarks
Electrical Characteristics
Unless otherwise specified, T
A
= 25 °C.
Parameter
Symbol
Forward Voltage Drop
Reverse Leakage Current
Breakdown Voltage
Breakdown Voltage
Temperature Coefficient
Breakdown Region
Equivalent Resistance
Thermal Resistance
V
F
I
R
V
Z
r
Z
R
Z
R
th(J-L)
Conditions
I
F
= 1 A
V
R
= 20 V
I
Z
= 1 mA
I
Z
= 1 mA
I
Z
= 1 mA to 10 mA
(3)
Min.
—
—
25
—
—
—
Typ.
—
—
—
25
26
20
Max.
0.95
10
31
—
—
—
Unit
V
μA
V
mV/°C
Ω
°C/W
Remarks
T
L
1.6 mm
Device
T
A
Cu land
2 mm
25 mm
2 mm
2 mm
Substrate
25 mm
Figure 1.
Lead Temperature Measurement Conditions
(1)
(2)
See Figure 2.
See Figure 1.
(3)
R
th(J-L)
is thermal resistance between junction and lead. Lead temperature is measured as shown in Figure 1.
SJPZ-K28-DSE Rev.1.2
SANKEN ELECTRIC CO., LTD.
Feb. 28, 2017
http://www.sanken-ele.co.jp/en/
© SANKEN ELECTRIC CO., LTD. 2016
2
SJPZ-K28
Rating and Characteristics Curves
1.2
10000
Peak Surge Reverse Power Capability, P
RSM
(W)
1.0
Power Dissipation, P
D
(W)
0.8
1000
0.6
0.4
100
0.2
0.0
0
25
50
75
100
125
150
10
0.1
1
10
100
Ambient Temperature, T
A
(°C)
Figure 2.
Power Dissipation Curve
(4)
Figure 3.
Pulse Width, t
W
(ms)
Peak Surge Reverse Power Capability
(5)
1000
Between junction and ambient air
Transient Thermal Resistance (°C/W)
100
10
Between junction and lead
1
0.1
0.01
0.01
0.1
1
10
100
1000
Time (s)
Figure 4.
Typical Transient Thermal Resistance
(6)
(4)
(5)
See Figure 1 for the measurement conditions.
The pulse is single block pulse.
(6)
Lead temperature is measured as shown in Figure 1.
SJPZ-K28-DSE Rev.1.2
SANKEN ELECTRIC CO., LTD.
Feb. 28, 2017
http://www.sanken-ele.co.jp/en/
© SANKEN ELECTRIC CO., LTD. 2016
3
SJPZ-K28
10
T
A
= 150
°C
1E-03
1E-04
T
A
= 25
°C
T
A
= 100
°C
Reverse Leakage Current, I
R
(A)
1
Forward Current, I
F
(A)
1E-05
0.1
1E-06
T
A
= 150
°C
0.01
1E-07
0.001
0.0
0.5
1.0
1.5
2.0
1E-08
0
5
10
15
20
Forward Voltage, V
F
(V)
Figure 5.
I
F
－V
F
Typical Characteristics
Figure 6.
Reverse Voltage, V
R
(V)
I
R
－V
R
Typical Characteristics
(7)
10
1
Breakdown Current, I
Z
(A)
0.1
0.01
t = 0.4 ms
0.001
20
25
30
35
40
Breakdown Voltage, V
Z
(V)
Figure 7.
I
Z
－V
Z
Typical Characteristics
(7)
I
R
is less than 10 nA at 100
°C
or less.
SJPZ-K28-DSE Rev.1.2
SANKEN ELECTRIC CO., LTD.
Feb. 28, 2017
http://www.sanken-ele.co.jp/en/
© SANKEN ELECTRIC CO., LTD. 2016
4
SJPZ-K28
Physical Dimensions
●
SJP Package
4.5±0.2
2.6±0.2
+0.1
-0.2
2.15
1.3±0.4
2.0min.
5.0
-0.1
+0.4
1.3±0.4
1.5±0.2
NOTES:
- Dimensions in millimeters
- Bare lead frame: Pb-free (RoHS compliant)
- When soldering the products, be sure to minimize the working time, within the following limits:
Flow: 260 ± 5 °C / 10 ± 1 s, 2 times
Soldering Iron: 380 ± 10 °C / 3.5 ± 0.5 s, 1 time (Soldering should be at a distance of at least 1.5 mm from the
body of the products.)
- MSL: JEDEC LEVEL1
●
SJP Land Pattern Example
2.0
2.0
4.0 to 4.2
NOTE:
Dimensions in millimeters
SJPZ-K28-DSE Rev.1.2
SANKEN ELECTRIC CO., LTD.
Feb. 28, 2017
http://www.sanken-ele.co.jp/en/
© SANKEN ELECTRIC CO., LTD. 2016
0.05
+0.1
-0.05
5
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