Voltage Temperature Coefficient
:
Voltage Tolerance
: 5 %
Packaging
: Reel
Power Dissipation
: 500 mW
Maximum Operating Temperature
: + 200 C
Zener Voltage
: 4.3 V
Mounting Style
: Through Hole
Maximum Zener Impedance
: 22 Ohms
Package / Case
: DO-35
Maximum Reverse Leakage Current
: 2 uA
Zener Current
: 85 mA
Features: Silicon Planar Power Zener Diodes
Standard Zener voltage tolerance is ±5% for "A" suffix. Other tolerances are available upon request.
Specifications
| Symbol |
Parameter |
Value |
Units |
| PD |
Power Dissipation
@ TL 75°C, Lead Length = 3/8" |
500 |
mW |
| Derate above 75°C |
4.0 |
mW/°C |
| TJ, TSTG |
Operating and Storage Temperature Range |
-65 to +200 |
|
DescriptionThe popular 1N749A of 0.5 watt Zener Voltage Regulators provides a selection from 2.4 to 12 volts in standard 5% or 10% tolerances as well as tighter tolerances identified by different suffix letters on the part number. These glass axial-leaded DO- 35 Zeners of the 1N749A are also available with an internal-metallurgical-bond option by adding a "-1" suffix. These are also available in JAN, JANTX, and JANTXV military qualifications. Microsemi also offers numerous other Zener products to meet higher and lower power applications.
Parameters: | Technical/Catalog Information | 1N749A |
| Vendor | Fairchild Semiconductor |
| Category | Discrete Semiconductor Products |
| Voltage - Zener (Nom) (Vz) | 4.3V |
| Power - Max | 500mW |
| Impedance (Max) (Zzt) | 22 Ohm |
| Voltage - Forward (Vf) (Max) @ If | 1.5V @ 200mA |
| Current - Reverse Leakage @ Vr | 2A @ 1V |
| Tolerance | ±5% |
| Mounting Type | Through Hole, Axial |
| Package / Case | DO-35, Axial |
| Packaging | Bulk |
| Operating Temperature | -65°C ~ 200°C |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | 1N749A
1N749A
|
1N749A Data Sheet
