1N977
vs
1N979B-1
feature comparison
All Stats
Differences Only
Part Life Cycle Code
Obsolete
Active
Ihs Manufacturer
CRIMSON SEMICONDUCTOR INC
MICROCHIP TECHNOLOGY INC
Package Description
O-LALF-W2
DO-35, 2 PIN
Reach Compliance Code
unknown
compliant
Case Connection
ISOLATED
ISOLATED
Configuration
SINGLE
SINGLE
Diode Element Material
SILICON
SILICON
Diode Type
ZENER DIODE
ZENER DIODE
Dynamic Impedance-Max
105 Ω
150 Ω
JESD-30 Code
O-LALF-W2
O-LALF-W2
Number of Elements
1
1
Number of Terminals
2
2
Operating Temperature-Max
175 °C
175 °C
Package Body Material
GLASS
GLASS
Package Shape
ROUND
ROUND
Package Style
LONG FORM
LONG FORM
Polarity
UNIDIRECTIONAL
UNIDIRECTIONAL
Power Dissipation-Max
0.4 W
0.4 W
Qualification Status
Not Qualified
Not Qualified
Reference Voltage-Nom
47 V
56 V
Surface Mount
NO
NO
Technology
ZENER
ZENER
Terminal Form
WIRE
WIRE
Terminal Position
AXIAL
AXIAL
Voltage Tol-Max
20%
5%
Working Test Current
2.7 mA
2.2 mA
Base Number Matches
3
7
Rohs Code
Factory Lead Time
14 Weeks
Additional Feature
METALLURGICALLY BONDED
JEDEC-95 Code
DO-204AH
JESD-609 Code
e0
Knee Impedance-Max
2000 Ω
Operating Temperature-Min
-65 °C
Reverse Current-Max
0.5 µA
Reverse Test Voltage
43 V
Terminal Finish
TIN LEAD
Voltage Temp Coeff-Max
53.76 mV/°C
Compare 1N977 with alternatives
Compare 1N979B-1 with alternatives