size:
0402, 0603, 0805, 1206
color:
Red, yellow, blue, green (general green and emerald green), white, two-color (two colors)
Voltage: 1.6V~2.1V
Current: 5~20mA
Features: The working voltage is very low, and the working current is very small;
Good impact resistance and seismic performance, high reliability and long life;
Suitable for reflow soldering and wave soldering;
Comply with ROHS directive requirements.
Package:
Glass, LL34 (1/2W), LL41 (1W), LS-34;
Plastic package, SOD-123, SOD-323, SOD-523
model:
LL4148 LL34 2.2V LL34â??75V LL34 (1/2W glass), 3.3Vâ??56V LL41 (1W glass)
2.2Vâ??75V voltage regulator series
MM1Z2V0~MM1Z75
The models and voltage regulation values of commonly used Zener diodes are as follows:
Model number: 1N4728, 1N4729, 1N4730, 1N4732, 1N4733, 1N4734, 1N4735, 1N4744, 1N4750, 1N4751, 1N4761
Voltage regulation value: 3.3V, 3.6V, 3.9V, 4.7V, 5.1V, 5.6V, 6.2V, 15V, 27V, 30V, 75V
Zener diodes are used in the over-voltage protection circuits in TV sets, and in series-type voltage-stabilizing circuits, the series-type voltage-stabilizing circuit is used in many occasions, and more stable power can be obtained by connecting in series.
Zener diodes are often represented by "ZD" plus a number in the circuit.
Five parameters of Zener diode:
1. Stable voltage
With the change of operating temperature and current, the Zener diode needs to be stabilized.
2. Working current
The voltage stabilizing diode changes according to the operating current. In general, the operating current is large, and the effect of voltage stabilization will be better.
3. Stable current
The Zener diode can stabilize the voltage with the current when it is working.
4. Dissipated power
In actual use, the Zener diode consumption is not allowed to exceed the standard.
Welcome friends who are interested to consult online
Model: SS32 SS310 SS34 SS38 SS34
Voltage: 100V 20V 40V 60V 80V
Current: 0.5
Package: SOT-23 SOT-124 DO-214AA
Schottky diode characteristics:
1. Hard breakdown characteristics
2. Low pressure drop. High speed
3. Good high temperature characteristics
4. Low loss and high efficiency
Schottky diodes, also known as Schottky barrier diodes (SBDs for short), are low-power, ultra-high-speed semiconductor devices. The most significant feature of Schottky diodes is that the reverse recovery time is extremely short, and the forward voltage drop is only about 0.4V. Schottky diodes are mostly used as rectifier diodes in high frequency, high current rectifier diodes, low voltage, freewheeling diodes, protection diodes, small signal detector diodes, microwave communications and other circuits. Schottky diodes are more common in communication power supplies, inverters, etc. The Schottky diode is in the switching circuit of the bipolar transistor and clamped by connecting the diode.
Features
Wide range, reliable performance.
Application
Power rectifier circuit, high power converters,
Motor control, battery chargers and electric power substations
Capacity: 200a-7000a/100v-6500v
I t(av) range: 200a-5000a
V drm / vrrm range: 100v-6500v
LED diodes, LED seven segment displays, DOT matrix displays, LED light bar, SMD LED, high power LEDS, LED cup light, LED strip light, LED back light, LED bulb light.