1 Watt SMD Zener Diode DL4728A Thru DL4761A / ZM4728A Thru ZM4761A
Features
1. High reliability
2. Very sharp reverse characteristic
3. Low reverse current level
4. VZ-tolerance±5%
Applications
Voltage stabilization
Absolute Maximum Ratings
Tj=25℃
| Parameter | Test Conditions | Symbol | Value | Unit |
| Power dissipation | I=4mm TL≤25℃ | Pv | | W |
| Z-current | | Iz | Pv/Vz | mA |
| Junction temperature | | Tj | 175 | ℃ |
| Storage temperature range | | Tstg | -65~+175 | ℃ |
Maximum Thermal Resistance
| Parameter | Test Conditions | Symbol | Value | Unit |
| Junction ambient | I=9.5mm(3/8') TL=constant | RthJA | 100 | K/W |
Electrical Characteristics
Tj=25℃
| Parameter | Test Conditions | Type | Symbol | Min | Typ | Max | Unit |
| Forward voltage | IF=200mA | | VF | | | 1.2 | V |
| Type | Vznom1) | IZK for rzjT | rzjT at IZK | IR at VR |
| V | mA | Ω | Ω | mA | μA | V |
| DL4728A | 3.3 | 76 | ＜10 | ＜400 | 1 | ＜100 | 1 |
| DL4729A | 3.6 | 69 | ＜10 | ＜400 | 1 | ＜100 | 1 |
| DL4730A | 3.9 | 64 | ＜9 | ＜400 | 1 | ＜50 | 1 |
| DL4731A | 4.3 | 58 | ＜9 | ＜400 | 1 | ＜10 | 1 |
| DL4732A | 4.7 | 53 | ＜8 | ＜500 | 1 | ＜10 | 1 |
| DL4733A | 5.1 | 49 | ＜7 | ＜550 | 1 | ＜10 | 1 |
| DL4734A | 5.6 | 45 | ＜5 | ＜600 | 1 | ＜10 | 2 |
| DL4735A | 6.2 | 41 | ＜2 | ＜700 | 1 | ＜10 | 3 |
| DL4736A | 6.8 | 37 | ＜3.5 | ＜700 | 1 | ＜10 | 4 |
| DL4737A | 7.5 | 34 | ＜4.0 | ＜700 | 0.5 | ＜10 | 5 |
| DL4738A | 8.2 | 31 | ＜4.5 | ＜700 | 0.5 | ＜10 | 6 |
| DL4739A | 9.1 | 28 | ＜5.0 | ＜700 | 0.5 | ＜10 | 7 |
| DL4740A | 10 | 25 | ＜7 | ＜700 | 0.25 | ＜10 | 7.6 |
| DL4741A | 11 | 23 | ＜8 | ＜700 | 0.25 | ＜5 | 8.4 |
| DL4742A | 12 | 21 | ＜9 | ＜700 | 0.25 | ＜5 | 9.1 |
| DL4743A | 13 | 19 | ＜10 | ＜700 | 0.25 | ＜5 | 9.9 |
| DL4744A | 15 | 17 | ＜14 | ＜700 | 0.25 | ＜5 | 11.4 |
| DL4745A | 16 | 15.5 | ＜16 | ＜700 | 0.25 | ＜5 | 12.2 |
| DL4746A | 18 | 14 | ＜20 | ＜750 | 0.25 | ＜5 | 13.7 |
| DL4747A | 20 | 12.5 | ＜22 | ＜750 | 0.25 | ＜5 | 15.2 |
| DL4748A | 22 | 11.5 | ＜23 | ＜750 | 0.25 | ＜5 | 16.7 |
| DL4749A | 24 | 10.5 | ＜25 | ＜750 | 0.25 | ＜5 | 18.2 |
| DL4750A | 27 | 9.5 | ＜35 | ＜750 | 0.25 | ＜5 | 20.6 |
| DL4751A | 30 | 8.5 | ＜40 | ＜1000 | 0.25 | ＜5 | 22.8 |
| DL4752A | 33 | 7.5 | ＜45 | ＜1000 | 0.25 | ＜5 | 25.1 |
| DL4753A | 36 | 7.0 | ＜50 | ＜1000 | 0.25 | ＜5 | 27.4 |
| DL4754A | 39 | 6.5 | ＜60 | ＜1000 | 0.25 | ＜5 | 29.7 |
| DL4755A | 43 | 6.0 | ＜70 | ＜1500 | 0.25 | ＜5 | 32.7 |
| DL4756A | 47 | 5.5 | ＜80 | ＜1500 | 0.25 | ＜5 | 35.8 |
| DL4757A | 51 | 5.0 | ＜95 | ＜1500 | 0.25 | ＜5 | 38.8 |
| DL4758A | 56 | 4.5 | ＜110 | ＜2000 | 0.25 | ＜5 | 42.6 |
| DL4759A | 62 | 4.0 | ＜125 | ＜2000 | 0.25 | ＜5 | 47.1 |
| DL4760A | 68 | 3.7 | ＜150 | ＜2000 | 0.25 | ＜5 | 51.7 |
| DL4761A | 75 | 3.3 | ＜175 | ＜2000 | 0.25 | ＜5 | 56 |
1) Based on DC-measurement at thermal equilibrium while maintaining
the lead temperature(TL)
at 30℃, 9.5mm(3/8”) from the diode body.
Size
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