POLYZEN DEVICES
Polymer Protected Zener Diode
PolyZen devices are polymer-enhanced, precision Zener
diodes. They offer resettable protection against multi-Watt
fault events without the need for multi-Watt heat sinks.
The Zener diode used for voltage clamping a PolyZen
device was selected due to its relatively flat voltage
vs. current response. This helps improve output voltage
clamping, even when input voltage is high and diode
currents are large.
An advanced feature of the PolyZen device is that the
Zener diode is thermally coupled to a resistively non-
linear, PPTC (polymer positive temperature coefficient)
layer. This PPTC layer is fully integrated into the device
and is electrically in series between V
IN
and the diode
clamped V
OUT
.
This advanced PPTC layer responds to either extended
diode heating or overcurrent events by transitioning from a low to high resistance state, also known as “tripping.” A
tripped PPTC will limit current and generate voltage drop. It helps to protect both the Zener diode and the follow-on
electronics and effectively increases the diode’s power handling capability.
The polymer-enhanced Zener diode helps protect sensitive portable electronics from damage caused by inductive
voltage spikes, voltage transients, incorrect power supplies and reverse bias. These devices are particularly suitable for
portable electronics and other low-power DC devices.
BENEFITS
• Stable Zener diode helps shield downstream
electronics from overvoltage and reverse bias
• Trip events shut out overvoltage and reverse bias
sources
• Analog nature of trip events helps minimize damage
from upstream inductive spikes
• Minimal power dissipation requirements
• Single component placement
APPLICATIONS
• DC power port protection in portable electronics
• DC power port protection for systems using barrel
jacks for power input
• Internal overvoltage and transient suppression
• DC output voltage regulation
• Tablet PCs and portable electronics
FEATURES
• Overvoltage transient suppression
• Stable V
Z
vs. fault current
• Time delayed, overvoltage trip
• Time delayed, reverse bias trip
• Multi-Watt power handling capability
• Integrated device construction
• RoHS compliant
• Halogen free
(refers to: Br
≥
900ppm, Cl
≥
900ppm, Br+Cl
≥
1500ppm)
RoHS Compliant, ELV Compliant
Specifications subject to change without notice. ©2016 Littelfuse, Inc.
27
PolyZen Devices
Polymer Protected Zener Diode
Figure PZ1 — Typical Application Block Diagram
(External or Internal)
Power Supply
Protected Electronics
2
1
PolyZen
Device
3
GND
V
IN
+
V
OUT
Regulated
Output
R
LOAD
Protected Downstream
Electronics
Table PZ1 — Electrical Characteristics
(Performance ratings @ 25°C unless otherwise specified)
V
Z
(V)
I
Zt
Part Number
ZEN056V130A24LS
ZEN059V130A24LS
†
ZEN065V130A24LS
ZEN098V130A24LS
ZEN132V130A24LS
ZEN164V130A24LS
ZEN056V230A16LS
ZEN065V230A16LS
ZEN098V230A16LS
ZEN132V230A16LS
ZEN056V075A48LS
ZEN132V075A48LS
ZEN056V115A24LS
ZEN056V130A16YM
ZEN056V175A12YM
ZEN132V130A16YM
ZEN132V175A12YM
ZEN056V130A24YC
ZEN056V230A16YC
ZEN056V260A16YC
ZEN132V130A24YC
ZEN132V230A16YC
ZEN132V260A16YC
Min
5.45
5.80
6.35
9.60
13.20
16.10
5.45
6.35
9.60
13.20
5.45
13.20
5.45
5.35
5.35
13.20
13.20
5.35
5.35
5.35
13.20
13.20
13.20
Typ
5.60
5.90
6.50
9.80
13.40
16.40
5.60
6.50
9.80
13.40
5.60
13.40
5.60
5.60
5.60
13.40
13.40
5.60
5.60
5.60
13.40
13.40
13.40
Max
5.75
6.00
6.65
10.00
13.60
16.60
5.75
6.65
10.00
13.60
5.75
13.60
5.75
5.85
5.85
13.80
13.80
5.85
5.85
5.85
13.80
13.80
13.80
(A)
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
I
HOLD
@ 20°C
(A)
1.30
1.30
1.30
1.30
1.30
1.30
2.30
2.30
2.30
2.30
0.75
0.75
1.15
1.30
1.75
1.30
1.75
1.30
2.30
2.60
1.30
2.30
2.60
R
Typ
(Ω)
0.12
0.12
0.12
0.12
0.12
0.12
0.04
0.04
0.04
0.04
0.28
0.28
0.15
0.110
0.050
0.110
0.050
0.110
0.040
0.040
0.110
0.040
0.040
R
1MAX
(Ω)
0.16
0.15
0.16
0.16
0.16
0.16
0.06
0.06
0.06
0.06
0.45
0.45
0.18
0.160
0.095
0.160
0.095
0.170
0.070
0.055
0.170
0.070
0.055
V
INT MAX
V
INT MAX
(V)
24
24
24
24
24
24
16
16
16
16
48
48
24
14
12
14
12
24
16
16
24
16
16
Test
Current
(A)
3
3
3
3
3
3
5
5
5
5
3
3
3
3
4
3
4
3
5
5
3
5
5
I
FLT MAX
I
FLT MAX
(A)
+10/-40
+6/-40
+6/-40
+3.5/-40
+2/-40
+1.25/-40
+5/-40
+3.5/-40
+3.5/-40
+2/-40
+10/-40
+2/-40
+10/-40
+3/-40
+3/-40
+1/-40
+1/-40
+4/-40
+3/-40
+3/-40
+1/-40
+1/-40
+1/-40
Test
Voltage
(V)
+24/-16
+24/-16
+24/-16
+24/-16
+24/-16
+24/-16
+16/-12
+16/-12
+16/-12
+20/-12
+48/-16
+48/-16
+24/-16
+16/-12
+12/-12
+20/-12
+20/-12
+24/-16
+16/-12
+16/-12
+24/-16
+20/-12
+20/-12
NEW
NEW
NEW
NEW
NEW
NEW
NEW
NEW
NEW
NEW
LS module height is 1.7mm typical. YM module height is 1.2mm typical. YC module
Table PZ2 — Definition of Terms
V
Z
I
ZT
I
HOLD
R
Typ
R
1MAX
I
FLT
I
FLT MAX
V
INT MAX
I
PTC
I
OUT
Trip Event
Zener clamping voltage measured at current I
ZT
and 20°C.
Test current at which V
Z
is measured.
Maximum steady state current I
PTC
that will not generate a trip event at the specified temperature.
Ratings assume I
FLT
= 0A.
Typical resistance between V
IN
and V
OUT
pins when the device is at room temperature.
The maximum resistance between V
IN
and V
OUT
pins, at room temperature, one hour after first trip or
after reflow soldering.
Current flowing through the Zener diode.
Maximum RMS fault current the Zener diode component of the device can withstand and remain resettable;
testing is conducted at rated voltage with no load connected to V
OUT
.
The voltage (V
IN
- V
OUT
“post trip”) at which typical qualification devices (98% devices, 95% confidence) survived
at least 100 trip cycles and 24 hours trip endurance when “tripped” at the specified voltage and current (I
PTC
).
Current flowing through the PPTC portion of the circuit.
Current flowing out the V
OUT
pin of the device.
A condition where the PPTC transitions to a high resistance state, thereby limiting I
PTC
, and significantly
increasing the voltage drop between V
IN
and V
OUT
.
Polymer PTC
V
IN
Zener
Diode
GND
I
PTC
I
OUT
V
OUT
V
IN
I
FLT
V
OUT
GND
RoHS Compliant, ELV Compliant
28
Specifications subject to change without notice. ©2016 Littelfuse, Inc.
PolyZen Devices
Polymer Protected Zener Diode
Figures PZ2-PZ9 — Typical Performance Curves for PolyZen Devices - LS Series
Figure PZ2
22.0
22.0
22.0
22.0
20.0
20.0
20.0
20.0
18.0
18.0
18.0
18.0
16.0
16.0
16.0
16.0
14.0
14.0
14.0
14.0
12.0
12.0
12.0
12.0
10.0
10.0
10.0
10.0
8.0
8.0
8.0
8.0
6.0
6.0
6.0
6.0
4.0
4.0
4.0
4.0
2.0
2.0
2.0
2.0
00
0000
00
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
FF
FF
EE
E
E
D
D
D
D
AA== ZEN056V1yyA24LS
ZEN056V1yyA24LS
A = ZEN059V130A24LS
BA==ZEN056V1yyA24LS
B ZEN056V1yyA24LS
ZEN059V130A24LS
B = ZEN065V130A24LS
B ZEN065V130A24LS
ZEN059V130A24LS
CC==ZEN059V130A24LS
C = ZEN098V130A24LS
C ZEN065V130A24LS
D ==ZEN065V130A24LS
D ZEN098V130A24LS
D = ZEN132V130A24LS
D ZEN132V130A24LS
ZEN098V130A24LS
EE==ZEN098V130A24LS
EF = ZEN164V130A24LS
ZEN132V130A24LS
FE==ZEN132V130A24LS
ZEN164V130A24LS
FF = ZEN164V130A24LS
= ZEN164V130A24LS
Figure PZ3
10
10
10
10
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
AA== ZEN056V1yyA24LS
ZEN056V1yyA24LS
A = ZEN059V130A24LS
BA==ZEN056V1yyA24LS
B ZEN056V1yyA24LS
ZEN059V130A24LS
B = ZEN065V130A24LS
CB==ZEN059V130A24LS
C ZEN059V130A24LS
ZEN065V130A24LS
C = ZEN098V130A24LS
C ZEN065V130A24LS
D ==ZEN065V130A24LS
D ZEN098V130A24LS
D = ZEN132V130A24LS
ED==ZEN098V130A24LS
E ZEN098V130A24LS
ZEN132V130A24LS
EF = ZEN164V130A24LS
ZEN132V130A24LS
FE==ZEN132V130A24LS
ZEN164V130A24LS
FF = ZEN164V130A24LS
= ZEN164V130A24LS
Time-to-Trip
Time-to-Trip (s)(s)
Time-to-Trip (s)(s)
Time-to-Trip
V
OUT
Peak (V)
V
OUT
Peak (V)
V
OUT
Peak (V)
V
OUT
Peak (V)
11
11
C
C
C
C
B
B
B
B
A
A
A
A
0.1
0.1
0.1
0.1
FF
FF
EE
E
E
D
D
D
D
C
C
C
C
B
B
B
B
A
A
A
A
88
88
99
99
10
10
10
10
11
11
22
22
33
33
44
44
I
FLT
RMS (A)
I
FLT
RMS (A)
I
FLT
RMS (A)
I
FLT
RMS (A)
55
55
66
66
77
77
88
88
99
99
10
10
10
10
0.01
0.01
0.01 00
0.01
00
11
11
22
22
33
33
44
44
I
FLT
RMS (A)
I
FLT
RMS (A)
I
FLT
RMS (A)
I
FLT
RMS (A)
55
55
66
66
77
77
Figure PZ4
22.0
22.0
22.0
22.0
20.0
20.0
20.0
20.0
18.0
18.0
18.0
18.0
16.0
16.0
16.0
16.0
14.0
14.0
14.0
14.0
12.0
12.0
12.0
12.0
10.0
10.0
10.0
10.0
8.0
8.0
8.0
8.0
6.0
6.0
6.0
6.0
4.0
4.0
4.0
4.0
2.0
2.0
2.0
2.0
00
0
00 0
00
0.0
0.0
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
AA = ZEN056V230A16LS
= ZEN056V230A16LS
A ==ZEN056V230A16LS
B ZEN056V230A16LS
ZEN065V230A16LS
BA= ZEN065V230A16LS
B ==ZEN065V230A16LS
C ZEN065V230A16LS
ZEN098V230A16LS
CB= ZEN098V230A16LS
C = ZEN132V230A16LS
C ZEN132V230A16LS
D = ZEN098V230A16LS
D = ZEN098V230A16LS
D = ZEN132V230A16LS
D = ZEN132V230A16LS
Figure PZ5
100
100
100
100
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
AA = ZEN056V230A16LS
= ZEN056V230A16LS
A ==ZEN056V230A16LS
BA= ZEN065V230A16LS
B ZEN056V230A16LS
ZEN065V230A16LS
B ==ZEN065V230A16LS
CB= ZEN098V230A16LS
C ZEN065V230A16LS
ZEN098V230A16LS
C = ZEN132V230A16LS
C = ZEN098V230A16LS
D = ZEN098V230A16LS
D ZEN132V230A16LS
D = ZEN132V230A16LS
D = ZEN132V230A16LS
C
C
C
C
B
B
B
B
A
A
A
A
Time-to-Trip
Time-to-Trip (s)(s)
Time-to-Trip (s)(s)
Time-to-Trip
V
OUT
Peak (V)
V
OUT
Peak (V)
V
OUT
Peak (V)
V
OUT
Peak (V)
D
D
D
D
10
10
10
10
11
11
0.1
0.1
0.1
0.1
D
D
D
D
B
B
B
CB
C
C
C
A
A
A
A
11
11
22
33
44
55
66
77
88
22
V
33
Peak vs. I
55
RMS
6
(I
Peak
44
FLT
RMS
RMS (I
OUT
=0)
88
vs. I
FLT
(A)
6
OUT
77
0)
=
V
OUT
I I
FLT
RMS (A)
OUT
FLT
99
99
10
10
10
10
0.01
0.01
0.01 00
0.01
00
11
11
Figure PZ6
-0.2
-0.2
0.0
0.0
-0.4
-0.4
-0.2
-0.2
-0.6
-0.6
-0.4
-0.4
-0.8
-0.8
-0.6
-0.6
-1.0
-1.0
-0.8
-0.8
-1.2
-1.2
-50
-1.0 -50
-1.0
-1.2
-1.2
-50
-50
I
FLT
RMS (A)
I
FLT
RMS (A)
22
33
44
55
66
77
88
2
Time-to-Trip vs. I
55
RMS (I
77
== 0)
8
33
44
66
2
Time-to-Trip vs. I
RMS (I
OUT
0)
8
I
FLT
RMS (A)
I
FLT
RMS (A)
FLT
OUT
FLT
99
99
10
10
10
10
AA = ZENxxxV1yyA24LS
= ZENxxxV1yyA24LS
V
OUT
Peak vs. I
FLT
RMS (I(I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS
BB== ZENxxxV230A16LS
ZENxxxV230A16LS
OUT
= 0)
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
AA = ZENxxxV1yyA24LS
= ZENxxxV1yyA24LS
BB = ZENxxxV230A16LS
= ZENxxxV230A16LS
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
Figure PZ7
10
10
100
100
100
100
I
FLT
RMS (A)
I
FLT
RMS (A)
AA = ZENxxxV1yyA24LS
= ZENxxxV1yyA24LS
Time-to-Trip vs. I
FLT
RMS
ZENxxxV230A16LS
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
BB = ZENxxxV230A16LS
=
(I
OUT
= 0)
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
AA = ZENxxxV1yyA24LS
= ZENxxxV1yyA24LS
BB = ZENxxxV230A16LS
= ZENxxxV230A16LS
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
Time-to-Trip (s)
Time-to-Trip (s)
Time-to-Trip (s)
Time-to-Trip (s)
V
OUT
Peak
OUT
Peak (V)
V (V)
V
OUT
Peak
OUT
Peak (V)
V (V)
11
10
10
0.1
0.1
11
0.01
0.01
0.1
0.1
0.001
0.001
0.01 -50
0.01 -50
BB
AA
CC
BB
AA
CC
-40
-40
AA
BB
AA
-40
-40
CC
-30
-30
-20
-20
-10
-10
00
-40
-40
-30
-30
-20
-20
-10
-10
00
BB
-40
-40
I
FLT
RMS (A)
I
FLT
RMS (A)
CC
-30
-30
-20
-20
-10
-10
00
I
FLT
RMS (A)
I
FLT
RMS (A)
-30
-30
-20
-20
-10
-10
00
0.001
0.001
-50
-50
I
FLT
RMS (A)
I
FLT
RMS (A)
I
FLT
RMS (A)
I
FLT
RMS (A)
Figure PZ8
3.5
3.5
3.0
3.0
3.5
3.5
2.5
2.5
Temperature Effect on I
HOLD
(I(I
FLT
=0)
Temperature Effect on I
HOLD FLT
= 0)
Temperature Effect on I
HOLD
=
(I
FLT
= 0)
Temperature Effect on I
HOLD
ZENxxxV230A16LS
(I = 0)
BB
FLT
= ZENxxxV230A16LS
BB
AA = ZENxxxV130A24LS
= ZENxxxV130A24LS
Figure PZ9
10
10
Time-to-Trip vs. I
PTC
RMS (I(I
FLT
=0)
Time-to-Trip vs. I
PTC
RMS
FLT
= 0)
Time-to-Trip vs. I
PTC
RMS
B=
(I
FLT
= 0)
Time-to-Trip vs. I
PTC
RMS
= ZENxxxV230A16LS
(I
ZENxxxV230A16LS
= 0)
B
FLT
AA = ZENxxxV1yyA24LS
= ZENxxxV1yyA24LS
Time-to-Trip (s)
Time-to-Trip (s)
Time-to-Trip (s)
Time-to-Trip (s)
I
HOLD
(A) I
HOLD
(A)
I
HOLD
(A) I
HOLD
(A)
3.0
3.0
2.0
2.0
2.5
2.5
1.5
1.5
2.0
2.0
1.0
1.0
1.5
1.5
0.5
0.5
1.0
1.0
0.0
0.0
-40
-40
0.5
0.5
0.0
0.0
-40
-40
AA
DD
AA
CC
DD
CC
-20
-20
BB
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
AA = ZENxxxV130A24LS
= ZENxxxV130A24LS
DD = ZENxxxV115A24LS
= ZENxxxV115A24LS
BB = ZENxxxV230A16LS
= ZENxxxV230A16LS
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
DD = ZENxxxV115A24LS
= ZENxxxV115A24LS
10 1
10
1
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
AA = ZENxxxV1yyA24LS
= ZENxxxV1yyA24LS
BB = ZENxxxV230A16LS
= ZENxxxV230A16LS
CC = ZENxxxV075A48LS
= ZENxxxV075A48LS
1
0.1 1
0.1
0.1
0.1
0.01
0.01
BB
CC
55
10
10
15
15
20
20
25
25
30
30
35
35
AA
40
40
00
20
20
40
40
60
60
80
80
100
100
0.01
0.01
0.001
0.001
00
BB
45
45
Ambient Temperature (˚C)
Ambient Temperature (˚C)
-20
-20
00
20
20
40
40
60
60
80
80
100
100
0.001
0.001
00
55
10
10
15
15
I
PTC
RMS (A)
I
PTC
RMS (A)
20
20
25
25
30
30
CC
35
35
AA
40
40
45
45
Ambient Temperature (˚C)
Ambient Temperature (˚C)
RoHS Compliant, ELV Compliant
Specifications subject to change without notice. ©2016 Littelfuse, Inc.
I
PTC
RMS (A)
I
PTC
RMS (A)
29
PolyZen Devices
Polymer Protected Zener Diode
Figures PZ10-PZ15 — Typical Performance Curves for PolyZen Devices - YM Series
Figure
18.0
PZ10
18.0
16.0
16.0
14.0
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
B
B
C
C
A
B
A
C
B
= ZEN056V1yyAzzYM
= ZEN132V130A16YM
= ZEN056V1yyAzzYM
= ZEN132V175A12YM
= ZEN132V130A16YM
Figure PZ11
100
100
10
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
A
B
A
C
B
D
C
= ZEN056V130A16YM
= ZEN056V175A12YM
= ZEN056V130A16YM
= ZEN132V130A16YM
= ZEN056V175A12YM
= ZEN132V175A12YM
= ZEN132V130A16YM
V
OUT OUT
Peak (V)
V Peak (V)
C = ZEN132V175A12YM
Time-to-Trip (s) (s)
Time-to-Trip
14.0
12.0
12.0
10.0
10.0
8.0
8.0
6.0
6.0
4.0
4.0
2.0
2.0
0.0
0.0
0
0
1
1
2
2
3
3
4
10
1
1
0.1
0.1
0.01
0.01
0.0
0.0
0.5
0.5
1.0
1.0
1.5
2.0
D = ZEN132V175A12YM
A
A
B
C
C
2.5
3.0
3.0
3.5
3.5
B
A
A
D
D
4.0
4.0
5
6
6
7
7
8
8
4
I
FLT
RMS (A)
5
I
FLT
RMS (A)
1.5
I
FLT
RMS (A)
2.5
2.0
I
FLT
RMS (A)
Figure PZ12
0.0
0.0
-0.2
-0.2
-0.4
-0.4
-0.6
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
A = ZEN056V130A16YM
B = ZENxxxV1yyAzzYM
A = ZEN056V130A16YM
B = ZENxxxV1yyAzzYM
Figure PZ13
100
100
10
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
A
B
A
C
B
= ZEN056V130A16YM
= ZEN132V130A16YM
= ZEN056V130A16YM
= ZENxxxV175A12YM
= ZEN132V130A16YM
C
C
B
B
Time-to-Trip (s) (s)
Time-to-Trip
V
OUT OUT
Peak (V)
V Peak (V)
-0.6
-0.8
-0.8
-1.0
-1.0
-1.2
-1.2
-1.4
-1.4
-1.6
-1.6
-1.8
-1.8
-2.0
-2.0
-40
-40
-30
-30
-20
-20
I
FLT
RMS (A)
-10
-10
B
B
A
A
10
1
1
0.1
0.1
0.01
0.01
C = ZENxxxV175A12YM
A
A
0
0
0.001
0.001
-40
-40
-30
-30
-20
-20
I
FLT
RMS (A)
-10
-10
0
0
Figure PZ14
3
2.5
3
2
Temperature Effect on I
HOLD
(I
FLT
= 0)
A = ZENxxxV130A16YM
B = ZENxxxV175A12YM
I
FLT
RMS (A)
Figure PZ15
100
Time-to-Trip vs. I
PTC
RMS (I
FLT
= 0)
A = ZENxxxV130A16YM
B = ZENxxxV175A12YM
Time-to-Trip vs. I
PTC
RMS (I
FLT
= 0)
A = ZENxxxV130A16YM
B = ZENxxxV175A12YM
I
FLT
RMS (A)
B
10
Temperature Effect on I
HOLD
(I
FLT
= 0)
A
B
A
I
HOLD
(A)
2.5
1.5
2
1
A = ZENxxxV130A16YM
B = ZENxxxV175A12YM
Time-to-Trip (s)
Time-to-Trip (s)
100
1
10
0.1
1
0.01
0.1
0.001
0.01
0
10
20
30
40
I
HOLD
(A)
A
B
A
-40
-20
0
20
40
60
80
1.5
0.5
1
0
0.5
0
-40
-20
0
V
OUT
B
100
Ambient Temperature (°C)
0.001
0
10
I
PTC
RMS (A)
20
30
40
Figures PZ16-PZ21
Ambient Temperature
Performance Curves for
100
— Typical
(°C)
PolyZen Devices - YC Series
18.0
PTC
Peak vs. I
FLT
RMS
20
40
60
(I
OUT
=
0)
80
100
Time-to-Trip vs. I
FLT
(A)
(I
OUT
= 0)
I
RMS
RMS
A = ZEN056V130A24YC
B = ZEN132V130A24YC
I
FLT
RMS (I
OUT
= 0)
C = ZEN056V2yyA16YC
D = ZEN132V2yyA16YC
A
B
C
D
= ZEN056V130A24YC
= ZEN132V130A24YC
= ZEN056V2yyA16YC
= ZEN132V2yyA16YC
Figure PZ16
14.0
16.0
B
A = ZEN056VyyyAzzYC
C = ZEN132V2yyA16YC
C
B = ZEN132V130A24YC
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
Figure PZ17
Time-to-Trip (s)
Time-to-Trip (s)
10
100
Time-to-Trip vs.
V
OUT
Peak (V) Peak (V)
V
OUT
18.0
12.0
16.0
10.0
14.0
8.0
12.0
6.0
10.0
4.0
8.0
2.0
6.0
0.0
4.0 0
2.0
0.0
0
1
2
1
2
B
C
A = ZEN056VyyyAzzYC
B = ZEN132V130A24YC
C = ZEN132V2yyA16YC
1
10
D
B
A
C
A
0.1
1
D
B
A
C
1.0
1.5
2.0
2.5
3.0
3.5
4.0
A
3
4
5
6
7
8
0.01
0.10.0
0.5
I
FLT
RMS (A)
0.01
0.0
0.5
1.0
1.5
I
FLT
RMS (A)
2.0
2.5
3.0
3.5
4.0
3
4
5
6
7
8
I
FLT
RMS (A)
I
FLT
RMS (A)
30
Specifications subject to change without notice. ©2016 Littelfuse, Inc.
RoHS Compliant, ELV Compliant
PolyZen Devices
Polymer Protected Zener Diode
Figures PZ16-PZ21 — Typical Performance Curves for PolyZen Devices - YC Series
Figure PZ18
V
OUT
Peak vs. I
FLT
RMS (I
OUT
= 0)
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
100
(Cont’d)
Figure PZ19
Time-to-Trip vs. I
FLT
RMS (I
OUT
= 0)
A
B
C
D
= ZEN056V130A24YC
= ZEN056V2yyA16YC
= ZEN132V130A24YC
= ZEN132V2yyA16YC
D
C
Time-to-Trip (s)
V
OUT
Peak (V)
A
B
C
D
= ZEN056V130A24YC
= ZEN056V2yyA16YC
= ZEN132V130A24YC
= ZEN132V2yyA16YC
10
1
B
C
D
A
-40
-30
-20
-10
0
0.1
B
0.01
A
0.001
-40
-30
-20
-10
0
I
FLT
RMS (A)
I
FLT
RMS (A)
Figure PZ20
4
3.5
3
Temperature Effect on I
HOLD
(I
FLT
= 0)
A = ZENxxxV130A24YC
B = ZENxxxV230A16YC
C = ZENxxxV260A16YC
Figure PZ21
100
Time-to-Trip vs. I
PTC
RMS (I
FLT
= 0)
B
A = ZENxxxV130A24YC
B = ZENxxxV2yyA16YC
10
A
I
HOLD
(A)
2.5
2
1.5
1
0.5
0
Time-to-Trip (s)
100
1
C
B
A
0.1
0.01
-40
-20
0
20
40
60
80
0.001
0
10
20
30
40
Ambient Temperature (°C)
I
PTC
RMS (A)
Table PZ3 — General Characteristics for PolyZen Devices
Operating temperature range
Storage temperature
ESD withstand
Diode capacitance
Construction
-40° to +85°C
-40° to +85°C
15kV
4200pF
RoHS compliant
Human body model
Typical @ 1MHz, 1V RMS
Figures PZ22-PZ34 — Basic Operation Examples for PolyZen Devices - LS Series
Figure PZ22
35
30
Hot-Plug Response
ZEN056V130A24LS vs. a 22V/120W Universal Power Supply
C
350
Capacitive
Current Spike
Current Pulled to
GND via Diode
Supply Voltage
Dropped by Current
A = V
IN
Supply Voltage
Returns to Normal
A
B = V
OUT
C = CURRENT (I
FLT
)
D = POWER
250
200
300
Voltage (V) and Current (A)
25
20
D
15
10
5
0
0
0.01
0.02
PPTC Switches to
High Resistance
A
B
V
OUT
Peak
C
0.03
Output Voltage
Remains Clamped
B
150
100
50
D
0
0.04
0.05
0.06
0.07
0.08
Time (s)
Power (Watts)
RoHS Compliant, ELV Compliant
Specifications subject to change without notice. ©2016 Littelfuse, Inc.
31
DSP and ARM Processors
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