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Zener Diodes

ROHM Zener diodes range from lead types to easy-to-use two-terminal mold types.

    Zener Diodes ESD Protection Devices

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●Zener Diodes

Package
(mm)
GMD2 VMN2 VMD2 EMD2
(SOD-523)
<SC-79>
circle view
Part No. GDZ series CDZ series VDZ series EDZ series
Power(mW) 100 100 100 150
Electrical Characteristics
(Ta=25℃)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)
Voltage 3.6B 3.6～3.845 5 3.6B 3.6～3.845 5 3.6B 3.6～3.845 5
3.9 3.74～4.16 5 3.9B 3.89～4.16 5 3.9B 3.89～4.16 5 3.9B 3.89～4.16 5
4.3B 4.17～4.43 5 4.3B 4.17～4.43 5 4.3B 4.17～4.43 5
4.7 4.42～4.9 5 4.7B 4.55～4.75 5 4.7B 4.55～4.75 5 4.7B 4.55～4.75 5
5.1 4.84～5.37 5 5.1B 4.98～5.2 5 5.1B 4.98～5.2 5 5.1B 4.98～5.2 5
5.6 5.31～5.92 5 5.6B 5.49～5.73 5 5.6B 5.49～5.73 5 5.6B 5.49～5.73 5
6.2 5.86～6.53 5 6.2B 6.06～6.33 5 6.2B 6.06～6.33 5 6.2B 6.06～6.33 5
6.8 6.47～7.14 5 6.8B 6.65～6.93 5 6.8B 6.65～6.93 5 6.8B 6.65～6.93 5
7.5 7.06～7.84 5 7.5B 7.28～7.6 5 7.5B 7.28～7.6 5 7.5B 7.28～7.6 5
8.2 7.76～8.64 5 8.2B 8.02～8.36 5 8.2B 8.02～8.36 5 8.2B 8.02～8.36 5
9.1B 8.85～9.23 5 9.1B 8.85～9.23 5 9.1B 8.85～9.23 5
10B 9.77～10.21 5 10B 9.77～10.21 5 10B 9.77～10.21 5
11B 10.76～11.22 5 11B 10.76～11.22 5 11B 10.76～11.22 5
12B 11.74～12.24 5 12B 11.74～12.24 5 12B 11.74～12.24 5
13B 12.91～13.49 5 13B 12.91～13.49 5 13B 12.91～13.49 5
15B 14.34～14.98 5 15B 14.34～14.98 5 15B 14.34～14.98 5
16B 15.85～16.51 5 16B 15.85～16.51 5 16B 15.85～16.51 5
18B 17.56～18.35 2 18B 17.56～18.35 2
20B 19.52～20.39 2 20B 19.52～20.39 2
22B 21.54～22.47 2 22B 21.54～22.47 2
24B 23.72～24.78 2 24B 23.72～24.78 2
27B 26.19～27.53 2 27B 26.19～27.53 2
30B 29.19～30.69 2 30B 29.19～30.69 2
33B 32.15～33.79 2 33B 32.15～33.79 2
36B 35.07～36.87 2 36B 35.07～36.87 2


Package
(mm)
UMD2
<SC-90>
(A)		 UMD4
<SC-82>
(SOT-343)		 TUMD2 TUMD2
circle view
Part No. UDZS series UMZ K series TFZ series TDZ series
Power(mW) 200 200 500 500
Electrical Characteristics
(Ta=25℃)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)
Voltage 3.6B 3.6～3.845 5 3.6K 3.6～3.845 5 3.6B 3.6～3.845 20
3.9B 3.89～4.16 5 3.9K 3.89～4.16 5 3.9B 3.89～4.16 20
4.3B 4.17～4.43 5 4.3K 4.17～4.43 5 4.3B 4.17～4.43 20
4.7B 4.55～4.75 5 4.7K 4.55～4.75 5 4.7B 4.55～4.8 20
5.1B 4.98～5.2 5 5.1K 4.98～5.2 5 5.1B 4.94～5.2 20 5.1 4.6～5.6 10
5.6B 5.49～5.73 5 5.6K 5.49～5.73 5 5.6B 5.45～5.73 20 5.6 5.1～6.1 10
6.2B 6.06～6.33 5 6.2K 6.06～6.33 5 6.2B 5.96～6.27 20 6.2 5.6～6.8 10
6.8B 6.65～6.93 5 6.8K 6.65～6.93 5 6.8B 6.49～6.83 20 6.8 6.2～7.4 10
7.5B 7.28～7.6 5 7.5K 7.28～7.6 5 7.5B 7.07～7.45 20 7.5 6.8～8.3 10
8.2B 8.02～8.36 5 8.2K 8.02～8.36 5 8.2B 7.78～8.19 20 8.2 7.4～9 10
9.1B 8.85～9.23 5 9.1K 8.85～9.23 5 9.1B 8.57～9.01 20 9.1 8.2～10 10
10B 9.77～10.21 5 10K 9.77～10.21 5 10B 9.41～9.9 20 10 9～11 10
11B 10.76～11.22 5 11K 10.76～11.22 5 11B 10.5～11.05 10 11 9.9～12.1 10
12B 11.74～12.24 5 12K 11.74～12.24 5 12B 11.44～12.03 10 12 10.8～13.2 10
13B 12.91～13.49 5 13K 12.91～13.49 5 13B 12.55～13.21 10 13 11.7～14.3 10
15B 14.34～14.98 5 15K 14.34～14.98 5 15B 13.89～14.62 10 15 13.5～16.5 10
16B 15.85～16.51 5 16K 15.85～16.51 5 16B 15.25～16.04 10 16 14.4～17.6 10
18B 17.56～18.35 5 18K 17.56～18.35 5 18B 16.82～17.7 10 18 16.2～19.8 10
20B 19.52～20.39 5 20K 19.52～20.39 5 20B 18.63～19.59 10 20 18～22 10
22B 21.54～22.47 5 22K 21.54～22.47 5 22B 20.64～21.71 5 22 19.8～24.2 10
24B 23.72～24.78 5 24K 23.72～24.78 5 24B 22.61～23.77 5 24 21.6～26.4 10
27B 26.19～27.53 5 27K 26.19～27.53 5 27B 24.97～26.26 5 27 24.3～29.7 10
30B 29.19～30.69 5 30K 29.19～30.69 5 30B 27.7～29.13 5 30 27～33 10
33B 32.15～33.79 5 33K 32.15～33.79 5 33B 30.32～31.88 5
36B 35.07～36.87 5 36K 35.07～36.87 5 36B 32.79～34.49 5
39B 35.36～37.19 5


Package
(mm)
PMDU
(SOD-123)		 PMDS
(SOD-106)		 LLDS
(LL-34)		 MSD
(DO-34)
circle view
Part No. KDZ series PTZ series RLZ series MTZJ series
Power(mW) 1000 1000 500 500
Electrical Characteristics
(Ta=25℃)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)		 VZ
(V)		 IZ
(mA)
Voltage 3.6B 3.6～4 40 3.6B 3.6～4 40 3.6B 3.6～3.845 20 3.6B 3.6～3.845 5
3.9B 3.9～4.4 40 3.9B 3.9～4.4 40 3.9B 3.89～4.16 20 3.9B 3.89～4.16 5
4.3B 4.3～4.8 40 4.3B 4.3～4.8 40 4.3B 4.17～4.43 20 4.3B 4.17～4.43 5
4.7B 4.7～5.2 40 4.7B 4.7～5.2 40 4.7B 4.55～4.8 20 4.7B 4.55～4.8 5
5.1B 5.1～5.7 40 5.1B 5.1～5.7 40 5.1B 4.94～5.2 20 5.1B 4.94～5.2 5
5.6B 5.6～6.3 40 5.6B 5.6～6.3 40 5.6B 5.45～5.73 20 5.6B 5.45～5.73 5
6.2B 6.2～7 40 6.2B 6.2～7 40 6.2B 5.96～6.27 20 6.2B 5.96～6.27 5
6.8B 6.8～7.7 40 6.8B 6.8～7.7 40 6.8B 6.49～6.83 20 6.8B 6.49～6.83 5
7.5B 7.5～8.4 40 7.5B 7.5～8.4 40 7.5B 7.07～7.45 20 7.5B 7.07～7.45 5
8.2B 8.2～9.3 40 8.2B 8.2～9.3 40 8.2B 7.78～8.19 20 8.2B 7.78～8.19 5
9.1B 9.1～10.2 40 9.1B 9.1～10.2 40 9.1B 8.57～9.01 20 9.1B 8.57～9.01 5
10B 10～11.2 40 10B 10～11.2 40 10B 9.41～9.9 20 10B 9.41～9.9 5
11B 11～12.3 20 11B 11～12.3 20 11B 10.5～11.05 10 11B 10.5～11.05 5
12B 12～13.5 20 12B 12～13.5 20 12B 11.44～12.03 10 12B 11.44～12.03 5
13B 13.3～15 20 13B 13.3～15 20 13B 12.55～13.21 10 13B 12.55～13.21 5
15B 14.7～16.5 20 15B 14.7～16.5 20 15B 13.89～14.62 10 15B 13.89～14.62 5
16B 16.2～18.3 20 16B 16.2～18.3 20 16B 15.25～16.04 10 16B 15.25～16.04 5
18B 18～20.3 20 18B 18～20.3 20 18B 16.82～17.7 10 18B 16.82～17.7 5
20B 20～22.4 20 20B 20～22.4 20 20B 18.63～19.59 10 20B 18.63～19.59 5
22B 22～24.5 10 22B 22～24.5 10 22B 20.64～21.71 5 22B 20.64～21.71 5
24B 24～27.6 10 24B 24～27.6 10 24B 22.61～23.77 5 24B 22.61～23.77 5
27B 27～30.8 10 27B 27～30.8 10 27B 24.97～26.26 5 27B 24.97～26.26 5
30B 30～34 10 30B 30～34 10 30B 27.7～29.13 5 30B 27.7～29.13 5
33B 33～37 10 33B 33～37 10 33B 30.32～31.88 5 33B 30.32～31.88 5
36B 36～40 10 36B 36～40 10 36B 32.79～34.49 5 36B 32.79～34.49 5
39B 35.36～37.19 5 39B 35.36～37.19 5


●ESD Protection Divices

※The circuit diagram is displayed when the pointer is put on the type name.
Application VZ
(V)		 Package
VMD3 EMD3
<SC-75A>
(SOT-416)		 EMD5
<SC-75A>		 UMD3
<SC-70>
(SOT-323)
Zener Arrays 5.1 UMZ5.1N
6.8 VMZ6.8N EMZ6.8N EMZ6.8E UMZ6.8N
8.2 UMZ8.2N
UMZ8.2T
12 UMZ12N
16 UMZ16N
18 UMZ18N
27 UMZ27N
30 UMZ30N
36 UMZ36N


※The circuit diagram is displayed when the pointer is put on the type name.
Application VZ
(V)		 Package
UMD5
<SC-88A>
(SOT-353)		 SMD3
<SC-59>
(SOT-346)		 SMD5
<SC-74A>
Zener Arrays 4.3 FTZ4.3E
5.1
5.6 STZ5.6N FTZ5.6E
6.2 STZ6.2N
6.8 UMZ6.8EN STZ6.8N
STZ6.8T		 FTZ6.8E
8.2
12
16
18
27
30 FTZ30E
36


※The circuit diagram is displayed when the pointer is put on the type name.
Application VZ
(V)		 Package
VMN2 VMD3 EMD2
(SOD-523)
<SC-79>
Low Capacitance
Zener Diodes		 6.8 CDZC6.8B
NEW 
RSAC6.8CS		 VMZT6.8N EDZC6.8B
12 RSB12Z
16 NEW 
RSAC16CS


※The circuit diagram is displayed when the pointer is put on the type name.
Application VZ
(V)		 Package
EMD3
<SC-75A>
(SOT-416)		 EMD5
<SC-75A>		 EMD6
<SC-75A>
Low Capacitance
Zener Diodes		 6.8 EMZC6.8N EMZT6.8E NEW 
RSB6.8JS2
12 RSB12W RSB12JS2


※The circuit diagram is displayed when the pointer is put on the type name.
Application VZ
(V)		 Package
UMD2
<SC-90>
(A)		 UMD3
<SC-70>
(SOT-323)		 SMD3
<SC-59>
(SOT-346)		 SMD5
<SC-74A>
Low Capacitance
Zener Diodes		 5.6 NEW 
UDZU5.6B
6.2 UMZU6.2N FTZU6.2E
6.8 UMZC6.8N STZC6.8N


※The circuit diagram is displayed when the pointer is put on the type name.
Application VZ
(V)		 Package
EMD5
<SC-75A>		 UMD5
<SC-88A>
(SOT-353)		 SMD6
<SC-74>
(SOT-457)		 PMDU
(SOD-123)		 PMDS
(SOD-106)
ESD Protection
Divices		 5 RSA5M RSA5L
6.1 RSA6.1J4 RSA6.1EN RSA6.1U5
12 RSA12M RSA12L
30 RSA30L


※The circuit diagram is displayed when the pointer is put on the type name.
Application VZ
(V)		 Package
VMN2 VMD2 EMD2
(SOD-523)
<SC-79>		 UMD2
<SC-90>
(A)		 UMD3
<SC-70>
(SOT-323)		 UMD4
<SC-82>
(SOT-343)		 UMD6
<SC-88>
(SOT-363)		 TUMD2
Bi-Directional
Zener Diodes		 5.6 RSB5.6S
6.8 RSBC6.8CS
RSB6.8CS		 RSB6.8G RSB6.8S RSB6.8F2
16 RSB16V RSB16F2 NEW 
RSB16X3N		 RSB16VA
18 RSB18V RSB18F2
27 RSB27V RSB27F2 NEW 
RSB27K

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