ST Semtech ZM4736A Power Zener Diode Featuring Silicon Planar Construction and 5 Percent Voltage Tolerance
Product Overview
The SEMTECH ZM4727...ZM4761 are Silicon Planar Power Zener Diodes designed for stabilizing and clipping circuits, featuring a high power rating. Standard Zener voltage tolerance is 10%. Suffix "A" indicates 5% tolerance, and suffix "B" indicates 2% tolerance. Other tolerances are available upon request. These diodes are also available in a DO-41 case with the type designation 1N4727...1N4761.
Product Attributes
- Brand: SEMTECH ELECTRONICS LTD.
- Origin: Not specified
- Material: Silicon Planar
- Color: Not specified
- Certifications: Not specified
Technical Specifications
| Type | Zener Voltage (V) VZnom at IZT (mA) | Dynamic Resistance (ZzT at IZK) Max. () | Dynamic Resistance (ZzK at IZK) Max. () | Reverse Current (IR at VR) Max. (A) | Maximum Surge Current (IZSM) (mA) | Maximum Regulator Current (IZM) (mA) |
| ZM4727 | 3 @ 83 | 10 | 400 | 1 | 1375 | 275 |
| ZM4728 | 3.3 @ 76 | 10 | 400 | 1 | 1375 | 275 |
| ZM4729 | 3.6 @ 69 | 10 | 400 | 1 | 1260 | 252 |
| ZM4730 | 3.9 @ 64 | 9 | 400 | 1 | 1190 | 234 |
| ZM4731 | 4.3 @ 58 | 9 | 400 | 1 | 1070 | 217 |
| ZM4732 | 4.7 @ 53 | 8 | 500 | 1 | 970 | 193 |
| ZM4733 | 5.1 @ 49 | 7 | 550 | 1 | 890 | 178 |
| ZM4734 | 5.6 @ 45 | 5 | 600 | 1 | 810 | 162 |
| ZM4735 | 6.2 @ 41 | 2 | 700 | 1 | 730 | 146 |
| ZM4736 | 6.8 @ 37 | 3.5 | 700 | 1 | 660 | 133 |
| ZM4737 | 7.5 @ 34 | 4 | 700 | 0.5 | 605 | 121 |
| ZM4738 | 8.2 @ 31 | 4.5 | 700 | 0.5 | 550 | 110 |
| ZM4739 | 9.1 @ 28 | 5 | 700 | 0.5 | 500 | 100 |
| ZM4740 | 10 @ 25 | 7 | 700 | 0.25 | 454 | 91 |
| ZM4741 | 11 @ 23 | 8 | 700 | 0.25 | 414 | 83 |
| ZM4742 | 12 @ 21 | 9 | 700 | 0.25 | 380 | 76 |
| ZM4743 | 13 @ 19 | 10 | 700 | 0.25 | 344 | 69 |
| ZM4744 | 15 @ 17 | 14 | 700 | 0.25 | 304 | 61 |
| ZM4745 | 16 @ 15.5 | 16 | 700 | 0.25 | 285 | 57 |
| ZM4746 | 18 @ 14 | 20 | 750 | 0.25 | 250 | 50 |
| ZM4747 | 20 @ 12.5 | 22 | 750 | 0.25 | 225 | 45 |
| ZM4748 | 22 @ 11.5 | 23 | 750 | 0.25 | 205 | 41 |
| ZM4749 | 24 @ 10.5 | 25 | 750 | 0.25 | 190 | 38 |
| ZM4750 | 27 @ 9.5 | 35 | 750 | 0.25 | 170 | 34 |
| ZM4751 | 30 @ 8.5 | 40 | 1000 | 0.25 | 150 | 30 |
| ZM4752 | 33 @ 7.5 | 45 | 1000 | 0.25 | 135 | 27 |
| ZM4753 | 36 @ 7 | 50 | 1000 | 0.25 | 125 | 25 |
| ZM4754 | 39 @ 6.5 | 60 | 1000 | 0.25 | 115 | 23 |
| ZM4755 | 43 @ 6 | 70 | 1500 | 0.25 | 110 | 22 |
| ZM4756 | 47 @ 5.5 | 80 | 1500 | 0.25 | 95 | 19 |
| ZM4757 | 51 @ 5 | 95 | 1500 | 0.25 | 90 | 18 |
| ZM4758 | 56 @ 4.5 | 110 | 2000 | 0.25 | 80 | 16 |
| ZM4759 | 62 @ 4 | 125 | 2000 | 0.25 | 70 | 14 |
| ZM4760 | 68 @ 3.7 | 150 | 2000 | 0.25 | 65 | 13 |
| ZM4761 | 75 @ 3.3 | 175 | 2000 | 0.25 | 60 | 12 |
| Parameter | Symbol | Value | Unit |
| Power Dissipation (provided electrodes are kept at ambient temperature) | Ptot | 1 | W |
| Junction Temperature | Tj | 175 | |
| Storage Temperature Range | Tstg | -65 to +175 | |
| Thermal Resistance Junction to Ambient Air (provided electrodes are kept at ambient temperature) | RJA | 170 | K/W |
| Forward Voltage at IF = 200 mA | VF | 1.2 | V |
Notes:
1) The dynamic resistance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener Current (IZT or IZK) is superimposed on IZT or IZK. Dynamic resistance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units.
2) Valid provided that electrodes are kept at ambient temperature.
3) Tested with pulses tp = 20 ms.
4) The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current IZT.
2410121257_ST-Semtech-ZM4736A_C48118.pdf
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