Page 140 - Diodes - Zener - Single | Discrete Semiconductor Products

SMZJ3791AHE3/52
Vishay Semiconductor Diodes Division

DIODE ZENER 12V 1.5W DO214AA

Package: DO-214AA, SMB

Stock3,696
FLZ20VA
Fairchild/ON Semiconductor

DIODE ZENER 18.5V 500MW SOD80

Package: DO-213AC, MINI-MELF, SOD-80

Stock4,768
MMBZ5238B-7
Diodes Incorporated

DIODE ZENER 8.7V 350MW SOT23-3

Package: TO-236-3, SC-59, SOT-23-3

Stock36,000
JAN1N3025C-1
Microsemi Corporation

DIODE ZENER 16V 1W DO41

Package: DO-204AL, DO-41, Axial

Stock2,100
1N5754D
Microsemi Corporation

DIODE ZENER 56V 500MW DO35

Package: DO-204AH, DO-35, Axial

Stock5,088
1PMT5944B/TR7
Microsemi Corporation

DIODE ZENER 62V 3W DO216AA

Package: DO-216AA

Stock4,064
2EZ6.2D/TR12
Microsemi Corporation

DIODE ZENER 6.2V 2W DO204AL

Package: DO-204AL, DO-41, Axial

Stock4,880
3EZ24D5/TR8
Microsemi Corporation

DIODE ZENER 24V 3W DO204AL

Package: DO-204AL, DO-41, Axial

Stock7,552
1N4480 TR
Central Semiconductor Corp

DIODE ZENER 43V 1.5W DO41

Package: DO-204AL, DO-41, Axial

Stock5,184
SMBJ5388AE3/TR13
Microsemi Corporation

DIODE ZENER 200V 5W SMBJ

Package: DO-214AA, SMB

Stock6,352
SMZJ3800BHE3/52
Vishay Semiconductor Diodes Division

DIODE ZENER 30V 1.5W DO214AA

Package: DO-214AA, SMB

Stock6,032
BZD27C15P R3G
Taiwan Semiconductor Corporation

DIODE, ZENER, 15V, 1000MW, %, SU

Package: DO-219AB

Stock7,120
TLZ8V2-GS18
Vishay Semiconductor Diodes Division

DIODE ZENER 8.2V 500MW SOD80

Package: DO-213AC, MINI-MELF, SOD-80

Stock5,760
BZX55C3V6-TAP
Vishay Semiconductor Diodes Division

DIODE ZENER 3.6V 500MW DO35

Package: DO-204AH, DO-35, Axial

Stock360,000
DL5242B-TP
Micro Commercial Co

DIODE ZENER 12V 500MW MINIMELF

Package: DO-213AC, MINI-MELF, SOD-80

Stock67,536
HZ7A3TD-E
Renesas Electronics Corporation

DIODE ZENER 0.5W

Package: -

Request a Quote
1N3997
Solid State Inc.

10 WATT ZENER DO-4

Package: -

Request a Quote
JANS1N4124DUR-1
Microchip Technology

ZENER DIODE

Package: -

Request a Quote
RD6-8FM-T2-AZ
Renesas

RD6.8FM-T2-AZ - ZENER DIODES1 W

Package: -

Request a Quote
1N5256A-TR
Microchip Technology

VOLTAGE REGULATOR

Package: -

Request a Quote

Part Number	Manufacturer	Description	Package	Stock	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
SMZJ3791AHE3/52	Vishay Semiconductor Diodes Division	DIODE ZENER 12V 1.5W DO214AA Voltage - Zener (Nom) (Vz): 12V Tolerance: ±10% Power - Max: 1.5W Impedance (Max) (Zzt): 7 Ohms Current - Reverse Leakage @ Vr: 5µA @ 9.1V Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: -55°C ~ 150°C Mounting Type: Surface Mount Package / Case: DO-214AA, SMB Supplier Device Package: DO-214AA (SMBJ)	Package: DO-214AA, SMB	Stock3,696	±10%	1.5W	7 Ohms	5µA @ 9.1V	-	-55°C ~ 150°C	Surface Mount	DO-214AA, SMB	DO-214AA (SMBJ)
FLZ20VA	Fairchild/ON Semiconductor	DIODE ZENER 18.5V 500MW SOD80 Voltage - Zener (Nom) (Vz): 18.5V Tolerance: ±3% Power - Max: 500mW Impedance (Max) (Zzt): 23.5 Ohms Current - Reverse Leakage @ Vr: 133nA @ 15V Voltage - Forward (Vf) (Max) @ If: 1.2V @ 200mA Operating Temperature: -65°C ~ 175°C Mounting Type: Surface Mount Package / Case: DO-213AC, MINI-MELF, SOD-80 Supplier Device Package: SOD-80	Package: DO-213AC, MINI-MELF, SOD-80	Stock4,768	±3%	500mW	23.5 Ohms	133nA @ 15V	1.2V @ 200mA	-65°C ~ 175°C	Surface Mount	DO-213AC, MINI-MELF, SOD-80	SOD-80
MMBZ5238B-7	Diodes Incorporated	DIODE ZENER 8.7V 350MW SOT23-3 Voltage - Zener (Nom) (Vz): 8.7V Tolerance: ±5% Power - Max: 350mW Impedance (Max) (Zzt): 8 Ohms Current - Reverse Leakage @ Vr: 3µA @ 6.5V Voltage - Forward (Vf) (Max) @ If: 900mV @ 10mA Operating Temperature: -65°C ~ 150°C Mounting Type: Surface Mount Package / Case: TO-236-3, SC-59, SOT-23-3 Supplier Device Package: SOT-23-3	Package: TO-236-3, SC-59, SOT-23-3	Stock36,000	±5%	350mW	8 Ohms	3µA @ 6.5V	900mV @ 10mA	-65°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
JAN1N3025C-1	Microsemi Corporation	DIODE ZENER 16V 1W DO41 Voltage - Zener (Nom) (Vz): 16V Tolerance: ±2% Power - Max: 1W Impedance (Max) (Zzt): 16 Ohms Current - Reverse Leakage @ Vr: 10µA @ 12.2V Voltage - Forward (Vf) (Max) @ If: 1.2V @ 200mA Operating Temperature: -55°C ~ 175°C Mounting Type: Through Hole Package / Case: DO-204AL, DO-41, Axial Supplier Device Package: DO-41	Package: DO-204AL, DO-41, Axial	Stock2,100	±2%	1W	16 Ohms	10µA @ 12.2V	1.2V @ 200mA	-55°C ~ 175°C	Through Hole	DO-204AL, DO-41, Axial	DO-41
1N5754D	Microsemi Corporation	DIODE ZENER 56V 500MW DO35 Voltage - Zener (Nom) (Vz): 56V Tolerance: ±1% Power - Max: 500mW Impedance (Max) (Zzt): 200 Ohms Current - Reverse Leakage @ Vr: 100nA @ 39V Voltage - Forward (Vf) (Max) @ If: 900mV @ 10mA Operating Temperature: -65°C ~ 175°C Mounting Type: Through Hole Package / Case: DO-204AH, DO-35, Axial Supplier Device Package: DO-35	Package: DO-204AH, DO-35, Axial	Stock5,088	±1%	500mW	200 Ohms	100nA @ 39V	900mV @ 10mA	-65°C ~ 175°C	Through Hole	DO-204AH, DO-35, Axial	DO-35
1PMT5944B/TR7	Microsemi Corporation	DIODE ZENER 62V 3W DO216AA Voltage - Zener (Nom) (Vz): 62V Tolerance: ±5% Power - Max: 3W Impedance (Max) (Zzt): 100 Ohms Current - Reverse Leakage @ Vr: 1µA @ 47.1V Voltage - Forward (Vf) (Max) @ If: 1.2V @ 200mA Operating Temperature: -55°C ~ 150°C Mounting Type: Surface Mount Package / Case: DO-216AA Supplier Device Package: DO-216AA	Package: DO-216AA	Stock4,064	±5%	3W	100 Ohms	1µA @ 47.1V	1.2V @ 200mA	-55°C ~ 150°C	Surface Mount	DO-216AA	DO-216AA
2EZ6.2D/TR12	Microsemi Corporation	DIODE ZENER 6.2V 2W DO204AL Voltage - Zener (Nom) (Vz): 6.2V Tolerance: ±20% Power - Max: 2W Impedance (Max) (Zzt): 1.5 Ohms Current - Reverse Leakage @ Vr: 5µA @ 3V Voltage - Forward (Vf) (Max) @ If: 1.2V @ 200mA Operating Temperature: -65°C ~ 150°C Mounting Type: Through Hole Package / Case: DO-204AL, DO-41, Axial Supplier Device Package: DO-204AL (DO-41)	Package: DO-204AL, DO-41, Axial	Stock4,880	±20%	2W	1.5 Ohms	5µA @ 3V	1.2V @ 200mA	-65°C ~ 150°C	Through Hole	DO-204AL, DO-41, Axial	DO-204AL (DO-41)
3EZ24D5/TR8	Microsemi Corporation	DIODE ZENER 24V 3W DO204AL Voltage - Zener (Nom) (Vz): 24V Tolerance: ±5% Power - Max: 3W Impedance (Max) (Zzt): 9 Ohms Current - Reverse Leakage @ Vr: 500nA @ 18.2V Voltage - Forward (Vf) (Max) @ If: 1.2V @ 200mA Operating Temperature: -65°C ~ 150°C Mounting Type: Through Hole Package / Case: DO-204AL, DO-41, Axial Supplier Device Package: DO-204AL (DO-41)	Package: DO-204AL, DO-41, Axial	Stock7,552	±5%	3W	9 Ohms	500nA @ 18.2V	1.2V @ 200mA	-65°C ~ 150°C	Through Hole	DO-204AL, DO-41, Axial	DO-204AL (DO-41)
1N4480 TR	Central Semiconductor Corp	DIODE ZENER 43V 1.5W DO41 Voltage - Zener (Nom) (Vz): 43V Tolerance: ±5% Power - Max: 1.5W Impedance (Max) (Zzt): 40 Ohms Current - Reverse Leakage @ Vr: 50nA @ 34.4V Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: -65°C ~ 200°C (TJ) Mounting Type: Through Hole Package / Case: DO-204AL, DO-41, Axial Supplier Device Package: DO-41	Package: DO-204AL, DO-41, Axial	Stock5,184	±5%	1.5W	40 Ohms	50nA @ 34.4V	-	-65°C ~ 200°C (TJ)	Through Hole	DO-204AL, DO-41, Axial	DO-41
SMBJ5388AE3/TR13	Microsemi Corporation	DIODE ZENER 200V 5W SMBJ Voltage - Zener (Nom) (Vz): 200V Tolerance: ±10% Power - Max: 5W Impedance (Max) (Zzt): 480 Ohms Current - Reverse Leakage @ Vr: 500nA @ 144V Voltage - Forward (Vf) (Max) @ If: 1.2V @ 1A Operating Temperature: -65°C ~ 150°C Mounting Type: Surface Mount Package / Case: DO-214AA, SMB Supplier Device Package: SMBJ (DO-214AA)	Package: DO-214AA, SMB	Stock6,352	±10%	5W	480 Ohms	500nA @ 144V	1.2V @ 1A	-65°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMBJ (DO-214AA)
SMZJ3800BHE3/52	Vishay Semiconductor Diodes Division	DIODE ZENER 30V 1.5W DO214AA Voltage - Zener (Nom) (Vz): 30V Tolerance: ±5% Power - Max: 1.5W Impedance (Max) (Zzt): 26 Ohms Current - Reverse Leakage @ Vr: 5µA @ 22.8V Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: -55°C ~ 150°C Mounting Type: Surface Mount Package / Case: DO-214AA, SMB Supplier Device Package: DO-214AA (SMBJ)	Package: DO-214AA, SMB	Stock6,032	±5%	1.5W	26 Ohms	5µA @ 22.8V	-	-55°C ~ 150°C	Surface Mount	DO-214AA, SMB	DO-214AA (SMBJ)
BZD27C15P R3G	Taiwan Semiconductor Corporation	DIODE, ZENER, 15V, 1000MW, %, SU Voltage - Zener (Nom) (Vz): 14.7V Tolerance: ±6.12% Power - Max: 1W Impedance (Max) (Zzt): 10 Ohms Current - Reverse Leakage @ Vr: 1µA @ 11V Voltage - Forward (Vf) (Max) @ If: 1.2V @ 200mA Operating Temperature: -55°C ~ 175°C (TJ) Mounting Type: Surface Mount Package / Case: DO-219AB Supplier Device Package: Sub SMA	Package: DO-219AB	Stock7,120	±6.12%	1W	10 Ohms	1µA @ 11V	1.2V @ 200mA	-55°C ~ 175°C (TJ)	Surface Mount	DO-219AB	Sub SMA
TLZ8V2-GS18	Vishay Semiconductor Diodes Division	DIODE ZENER 8.2V 500MW SOD80 Voltage - Zener (Nom) (Vz): 8.2V Tolerance: - Power - Max: 500mW Impedance (Max) (Zzt): 8 Ohms Current - Reverse Leakage @ Vr: - Voltage - Forward (Vf) (Max) @ If: 1.5V @ 200mA Operating Temperature: -65°C ~ 175°C Mounting Type: Surface Mount Package / Case: DO-213AC, MINI-MELF, SOD-80 Supplier Device Package: SOD-80 MiniMELF	Package: DO-213AC, MINI-MELF, SOD-80	Stock5,760	-	500mW	8 Ohms	-	1.5V @ 200mA	-65°C ~ 175°C	Surface Mount	DO-213AC, MINI-MELF, SOD-80	SOD-80 MiniMELF
BZX55C3V6-TAP	Vishay Semiconductor Diodes Division	DIODE ZENER 3.6V 500MW DO35 Voltage - Zener (Nom) (Vz): 3.6V Tolerance: ±5% Power - Max: 500mW Impedance (Max) (Zzt): 85 Ohms Current - Reverse Leakage @ Vr: 2µA @ 1V Voltage - Forward (Vf) (Max) @ If: 1.5V @ 200mA Operating Temperature: -65°C ~ 175°C Mounting Type: Through Hole Package / Case: DO-204AH, DO-35, Axial Supplier Device Package: DO-35	Package: DO-204AH, DO-35, Axial	Stock360,000	±5%	500mW	85 Ohms	2µA @ 1V	1.5V @ 200mA	-65°C ~ 175°C	Through Hole	DO-204AH, DO-35, Axial	DO-35
DL5242B-TP	Micro Commercial Co	DIODE ZENER 12V 500MW MINIMELF Voltage - Zener (Nom) (Vz): 12V Tolerance: ±5% Power - Max: 500mW Impedance (Max) (Zzt): 30 Ohms Current - Reverse Leakage @ Vr: 1µA @ 9.1V Voltage - Forward (Vf) (Max) @ If: 1.1V @ 200mA Operating Temperature: -65°C ~ 175°C Mounting Type: Surface Mount Package / Case: DO-213AC, MINI-MELF, SOD-80 Supplier Device Package: Mini MELF	Package: DO-213AC, MINI-MELF, SOD-80	Stock67,536	±5%	500mW	30 Ohms	1µA @ 9.1V	1.1V @ 200mA	-65°C ~ 175°C	Surface Mount	DO-213AC, MINI-MELF, SOD-80	Mini MELF
HZ7A3TD-E	Renesas Electronics Corporation	DIODE ZENER 0.5W 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: -	Package: -	Request a Quote	-	-	-	-	-	-	-	-	-
1N3997	Solid State Inc.	10 WATT ZENER DO-4 Voltage - Zener (Nom) (Vz): 5.6 V Tolerance: ±10% Power - Max: 10 W Impedance (Max) (Zzt): 1 Ohms Current - Reverse Leakage @ Vr: 10 µA @ 1 V Voltage - Forward (Vf) (Max) @ If: 1.5 V @ 2 A Operating Temperature: -65°C ~ 175°C (TJ) Mounting Type: Stud Mount Package / Case: DO-203AA, DO-4, Stud Supplier Device Package: DO-4	Package: -	Request a Quote	±10%	10 W	1 Ohms	10 µA @ 1 V	1.5 V @ 2 A	-65°C ~ 175°C (TJ)	Stud Mount	DO-203AA, DO-4, Stud	DO-4
JANS1N4124DUR-1	Microchip Technology	ZENER DIODE Voltage - Zener (Nom) (Vz): 43 V Tolerance: ±1% Power - Max: 500 mW Impedance (Max) (Zzt): 250 Ohms Current - Reverse Leakage @ Vr: 10 nA @ 32.7 V Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 200 mA Operating Temperature: -65°C ~ 175°C (TJ) Mounting Type: Surface Mount Package / Case: DO-213AA (Glass) Supplier Device Package: DO-213AA	Package: -	Request a Quote	±1%	500 mW	250 Ohms	10 nA @ 32.7 V	1.1 V @ 200 mA	-65°C ~ 175°C (TJ)	Surface Mount	DO-213AA (Glass)	DO-213AA
RD6-8FM-T2-AZ	Renesas	RD6.8FM-T2-AZ - ZENER DIODES1 W Voltage - Zener (Nom) (Vz): - Tolerance: - Power - Max: - Impedance (Max) (Zzt): - Current - Reverse Leakage @ Vr: - Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: 150°C (TJ) Mounting Type: Surface Mount Package / Case: DO-214AC, SMA Supplier Device Package: 2-Power Mini Mold	Package: -	Request a Quote	-	-	-	-	-	150°C (TJ)	Surface Mount	DO-214AC, SMA	2-Power Mini Mold
1N5256A-TR	Microchip Technology	VOLTAGE REGULATOR Voltage - Zener (Nom) (Vz): 30 V Tolerance: ±10% Power - Max: 500 mW Impedance (Max) (Zzt): 49 Ohms Current - Reverse Leakage @ Vr: 100 nA @ 22 V Voltage - Forward (Vf) (Max) @ If: 1.5 V @ 200 mA Operating Temperature: -65°C ~ 175°C (TJ) Mounting Type: Through Hole Package / Case: DO-204AH, DO-35, Axial Supplier Device Package: DO-204AH (DO-35)	Package: -	Request a Quote	±10%	500 mW	49 Ohms	100 nA @ 22 V	1.5 V @ 200 mA	-65°C ~ 175°C (TJ)	Through Hole	DO-204AH, DO-35, Axial	DO-204AH (DO-35)
SMA1EZ180D5HE3-TP	Micro Commercial Co	Interface Voltage - Zener (Nom) (Vz): 180 V Tolerance: - Power - Max: 1 W Impedance (Max) (Zzt): 1200 Ohms Current - Reverse Leakage @ Vr: 100 nA @ 136.8 V Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 200 mA Operating Temperature: -55°C ~ 175°C (TJ) Mounting Type: Surface Mount Package / Case: DO-214AC, SMA Supplier Device Package: DO-214AC (SMA)	Package: -	Request a Quote	-	1 W	1200 Ohms	100 nA @ 136.8 V	1.2 V @ 200 mA	-55°C ~ 175°C (TJ)	Surface Mount	DO-214AC, SMA	DO-214AC (SMA)
CD5988	Microchip Technology	VOLTAGE REGULATOR 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: -	Package: -	Request a Quote	-	-	-	-	-	-	-	-	-
1SMB3EZ15_R1_00001	Panjit International Inc.	GLASS PASSIVATED JUNCTION SILICO Voltage - Zener (Nom) (Vz): 15 V Tolerance: ±5% Power - Max: 3 W Impedance (Max) (Zzt): 6 Ohms Current - Reverse Leakage @ Vr: 500 nA @ 11.4 V Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: -55°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: DO-214AA, SMB Supplier Device Package: SMB (DO-214AA)	Package: -	Stock2,370	±5%	3 W	6 Ohms	500 nA @ 11.4 V	-	-55°C ~ 150°C (TJ)	Surface Mount	DO-214AA, SMB	SMB (DO-214AA)
RD8-2FM-T1-AY	Renesas	RD8.2FM-T1-AY - ZENER DIODES1 W Voltage - Zener (Nom) (Vz): - Tolerance: - Power - Max: - Impedance (Max) (Zzt): - Current - Reverse Leakage @ Vr: - Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: 150°C (TJ) Mounting Type: Surface Mount Package / Case: DO-214AC, SMA Supplier Device Package: 2-Power Mini Mold	Package: -	Request a Quote	-	-	-	-	-	150°C (TJ)	Surface Mount	DO-214AC, SMA	2-Power Mini Mold
1N5988D-1	Microchip Technology	VOLTAGE REGULATOR Voltage - Zener (Nom) (Vz): 3.3 V Tolerance: ±1% Power - Max: 500 mW Impedance (Max) (Zzt): 95 Ohms Current - Reverse Leakage @ Vr: 25 µA @ 1 V Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 200 mA Operating Temperature: -65°C ~ 175°C (TJ) Mounting Type: Through Hole Package / Case: DO-204AH, DO-35, Axial Supplier Device Package: DO-204AH (DO-35)	Package: -	Request a Quote	±1%	500 mW	95 Ohms	25 µA @ 1 V	1.1 V @ 200 mA	-65°C ~ 175°C (TJ)	Through Hole	DO-204AH, DO-35, Axial	DO-204AH (DO-35)
ZMY82	Diotec Semiconductor	IC Voltage - Zener (Nom) (Vz): 82 V Tolerance: ±5% Power - Max: 1.3 W Impedance (Max) (Zzt): 30 Ohms Current - Reverse Leakage @ Vr: 1 µA @ 41 V Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: -50°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: DO-213AB, MELF Supplier Device Package: MELF DO-213AB (Plastic)	Package: -	Request a Quote	±5%	1.3 W	30 Ohms	1 µA @ 41 V	-	-50°C ~ 150°C (TJ)	Surface Mount	DO-213AB, MELF	MELF DO-213AB (Plastic)
MM3Z3B9-AQ	Diotec Semiconductor	IC Voltage - Zener (Nom) (Vz): 3.9 V Tolerance: ±2% Power - Max: 300 mW Impedance (Max) (Zzt): 130 Ohms Current - Reverse Leakage @ Vr: 5 µA @ 1 V Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: -50°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: SC-90, SOD-323F Supplier Device Package: SOD-323F	Package: -	Request a Quote	±2%	300 mW	130 Ohms	5 µA @ 1 V	-	-50°C ~ 150°C (TJ)	Surface Mount	SC-90, SOD-323F	SOD-323F
MMSZ5255A_R1_00001	Panjit International Inc.	SOD-123, ZENER Voltage - Zener (Nom) (Vz): 28 V Tolerance: ±2% Power - Max: 500 mW Impedance (Max) (Zzt): 44 Ohms Current - Reverse Leakage @ Vr: 100 nA @ 21 V Voltage - Forward (Vf) (Max) @ If: - Operating Temperature: -50°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: SOD-123 Supplier Device Package: SOD-123	Package: -	Stock31,890	±2%	500 mW	44 Ohms	100 nA @ 21 V	-	-50°C ~ 150°C (TJ)	Surface Mount	SOD-123	SOD-123