Panasonic Electronic Components Produtos - Diodos - Zener - Arranjos | Heisener Electronics
Fale conosco
SalesDept@heisener.com +86-755-83210559 ext. 803
Language Translation

* Please refer to the English Version as our Official Version.

Panasonic Electronic Components Produtos - Diodos - Zener - Arranjos

Registros 61
Página  1/3
Imagem
Nº de peças
Fabricante
Descrição
pacote
Estoque
Quantidade
Voltage - Zener (Nom) (Vz)
Tolerance
Power - Max
Impedance (Max) (Zzt)
Current - Reverse Leakage @ Vr
Voltage - Forward (Vf) (Max) @ If
Operating Temperature
Mounting Type
Package / Case
Supplier Device Package
DZ37068D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 6.8V SSSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.8V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SOT-723
  • Supplier Device Package: SSSMini3-F2-B
pacote: SOT-723
Estoque4.736
6.8V
-
150mW
30 Ohms
100nA @ 4V
1V @ 10mA
-
Surface Mount
SOT-723
SSSMini3-F2-B
DZ6J068S0R
Panasonic Electronic Components

DIODE ZENER ARRAY 6.8V SMINI6

  • Configuration: 2 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.8V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 6-SMD, Flat Leads
  • Supplier Device Package: SMini6-F3-B
pacote: 6-SMD, Flat Leads
Estoque7.776
6.8V
-
150mW
30 Ohms
100nA @ 4V
1V @ 10mA
-
Surface Mount
6-SMD, Flat Leads
SMini6-F3-B
hot MAZT062HGL
Panasonic Electronic Components

DIODE ZENER ARRAY 6.2V SSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.2V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 50 Ohms
  • Current - Reverse Leakage @ Vr: 200nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: -
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SC-89, SOT-490
  • Supplier Device Package: SSMini3-F3
pacote: SC-89, SOT-490
Estoque540.000
6.2V
-
150mW
50 Ohms
200nA @ 4V
-
-
Surface Mount
SC-89, SOT-490
SSMini3-F3
DZ4J068K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 6.8V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 6.8V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 20 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque5.792
6.8V
-
200mW
20 Ohms
100nA @ 4V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J039K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 3.9V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 3.9V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 130 Ohms
  • Current - Reverse Leakage @ Vr: 10µA @ 1V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque4.432
3.9V
-
200mW
130 Ohms
10µA @ 1V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J024K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 2.4V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 2.4V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 100 Ohms
  • Current - Reverse Leakage @ Vr: 120µA @ 1V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque6.160
2.4V
-
200mW
100 Ohms
120µA @ 1V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J036K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 3.6V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 3.6V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 130 Ohms
  • Current - Reverse Leakage @ Vr: 10µA @ 1V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque3.312
3.6V
-
200mW
130 Ohms
10µA @ 1V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J180K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 18V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 18V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 60 Ohms
  • Current - Reverse Leakage @ Vr: 50nA @ 13V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque4.032
18V
-
200mW
60 Ohms
50nA @ 13V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J030K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 3V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 3V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 120 Ohms
  • Current - Reverse Leakage @ Vr: 50µA @ 1V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque4.912
3V
-
200mW
120 Ohms
50µA @ 1V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J150K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 15V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 15V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 40 Ohms
  • Current - Reverse Leakage @ Vr: 50nA @ 11V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque6.832
15V
-
200mW
40 Ohms
50nA @ 11V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J100K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 10V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 10V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 50nA @ 7V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque4.976
10V
-
200mW
30 Ohms
50nA @ 7V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J062K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 6.2V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 6.2V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 200nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque6.160
6.2V
-
200mW
30 Ohms
200nA @ 4V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ37082D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 8.2V SSSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 8.2V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 5V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SOT-723
  • Supplier Device Package: SSSMini3-F2-B
pacote: SOT-723
Estoque7.504
8.2V
-
150mW
30 Ohms
100nA @ 5V
1V @ 10mA
-
Surface Mount
SOT-723
SSSMini3-F2-B
DZ4J110K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 11V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 11V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 50nA @ 8V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque3.536
11V
-
200mW
30 Ohms
50nA @ 8V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J056K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 5.6V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 5.6V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 40 Ohms
  • Current - Reverse Leakage @ Vr: 500nA @ 2.5V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque6.976
5.6V
-
200mW
40 Ohms
500nA @ 2.5V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J130K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 13V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 13V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 35 Ohms
  • Current - Reverse Leakage @ Vr: 50nA @ 10V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque4.992
13V
-
200mW
35 Ohms
50nA @ 10V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J075K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 7.5V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 7.5V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 20 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 5V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque6.080
7.5V
-
200mW
20 Ohms
100nA @ 5V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J091K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 9.1V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 9.1V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 20 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 6V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque7.696
9.1V
-
200mW
20 Ohms
100nA @ 6V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ4J330K0R
Panasonic Electronic Components

DIODE ZENER ARRAY 33V SMINI4

  • Configuration: 2 Independent
  • Voltage - Zener (Nom) (Vz): 33V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 200 Ohms
  • Current - Reverse Leakage @ Vr: 50nA @ 25V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Flat Leads
  • Supplier Device Package: SMini4-F3-B
pacote: 4-SMD, Flat Leads
Estoque7.808
33V
-
200mW
200 Ohms
50nA @ 25V
1V @ 10mA
-
Surface Mount
4-SMD, Flat Leads
SMini4-F3-B
DZ3S068D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 6.8V SSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.8V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SC-89, SOT-490
  • Supplier Device Package: SSMini3-F3-B
pacote: SC-89, SOT-490
Estoque3.088
6.8V
-
150mW
30 Ohms
100nA @ 4V
1V @ 10mA
-
Surface Mount
SC-89, SOT-490
SSMini3-F3-B
DZ3S062D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 6.2V SSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.2V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 50 Ohms
  • Current - Reverse Leakage @ Vr: 200nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SC-89, SOT-490
  • Supplier Device Package: SSMini3-F3-B
pacote: SC-89, SOT-490
Estoque5.696
6.2V
-
150mW
50 Ohms
200nA @ 4V
1V @ 10mA
-
Surface Mount
SC-89, SOT-490
SSMini3-F3-B
DZ37062D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 6.2V SSSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.2V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 50 Ohms
  • Current - Reverse Leakage @ Vr: 200nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SOT-723
  • Supplier Device Package: SSSMini3-F2-B
pacote: SOT-723
Estoque3.312
6.2V
-
150mW
50 Ohms
200nA @ 4V
1V @ 10mA
-
Surface Mount
SOT-723
SSSMini3-F2-B
DZ37100D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 10V SSSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 10V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 50nA @ 7V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SOT-723
  • Supplier Device Package: SSSMini3-F2-B
pacote: SOT-723
Estoque5.904
10V
-
150mW
30 Ohms
50nA @ 7V
1V @ 10mA
-
Surface Mount
SOT-723
SSSMini3-F2-B
MAZM062HGL
Panasonic Electronic Components

DIODE ZENER ARRAY 6.2V SSMINI5

  • Configuration: 2 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.2V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 50 Ohms
  • Current - Reverse Leakage @ Vr: 200nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: -
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SOT-665
  • Supplier Device Package: SSMini5-F3
pacote: SOT-665
Estoque25.032
6.2V
-
150mW
50 Ohms
200nA @ 4V
-
-
Surface Mount
SOT-665
SSMini5-F3
hot MAZW068HGL
Panasonic Electronic Components

DIODE ZENER ARRAY 6.8V SSSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.8V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: -
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SOT-723
  • Supplier Device Package: SSSMini3-F2
pacote: SOT-723
Estoque450.000
6.8V
-
150mW
30 Ohms
100nA @ 4V
-
-
Surface Mount
SOT-723
SSSMini3-F2
DZ3X068D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 6.8V MINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.8V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: TO-236-3, SC-59, SOT-23-3
  • Supplier Device Package: Mini3-G3-B
pacote: TO-236-3, SC-59, SOT-23-3
Estoque59.466
6.8V
-
200mW
30 Ohms
100nA @ 4V
1V @ 10mA
-
Surface Mount
TO-236-3, SC-59, SOT-23-3
Mini3-G3-B
DZ3S082D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 8.2V SSMINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 8.2V
  • Tolerance: -
  • Power - Max: 150mW
  • Impedance (Max) (Zzt): 30 Ohms
  • Current - Reverse Leakage @ Vr: 100nA @ 5V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: SC-89, SOT-490
  • Supplier Device Package: SSMini3-F3-B
pacote: SC-89, SOT-490
Estoque24.564
8.2V
-
150mW
30 Ohms
100nA @ 5V
1V @ 10mA
-
Surface Mount
SC-89, SOT-490
SSMini3-F3-B
DZ3X062D0L
Panasonic Electronic Components

DIODE ZENER ARRAY 6.2V MINI3

  • Configuration: 1 Pair Common Anode
  • Voltage - Zener (Nom) (Vz): 6.2V
  • Tolerance: -
  • Power - Max: 200mW
  • Impedance (Max) (Zzt): 50 Ohms
  • Current - Reverse Leakage @ Vr: 200nA @ 4V
  • Voltage - Forward (Vf) (Max) @ If: 1V @ 10mA
  • Operating Temperature: -
  • Mounting Type: Surface Mount
  • Package / Case: TO-236-3, SC-59, SOT-23-3
  • Supplier Device Package: Mini3-G3-B
pacote: TO-236-3, SC-59, SOT-23-3
Estoque23.646
6.2V
-
200mW
50 Ohms
200nA @ 4V
1V @ 10mA
-
Surface Mount
TO-236-3, SC-59, SOT-23-3
Mini3-G3-B