Part Details for ZM4745A by Taiwan Semiconductor
Results Overview of ZM4745A by Taiwan Semiconductor
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (5 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (6 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Consumer Electronics
Energy and Power Systems
Renewable Energy
ZM4745A Information
ZM4745A by Taiwan Semiconductor is a Zener Diode.
Zener Diodes are under the broader part category of Diodes.
A diode is a electrical part that can control the direction in which the current flows in a device. Consider factors like voltage drop, current capacity, reverse voltage, and operating frequency when selecting a diode. Read more about Diodes on our Diodes part category page.
Price & Stock for ZM4745A
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
1801-ZM4745ATR-ND
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DigiKey | DIODE ZENER 16V 1W MELF Min Qty: 5000 Lead time: 18 Weeks Container: Tape & Reel (TR) | Temporarily Out of Stock |
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Buy Now |
Part Details for ZM4745A
ZM4745A CAD Models
ZM4745A Part Data Attributes
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ZM4745A
Taiwan Semiconductor
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Datasheet
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ZM4745A
Taiwan Semiconductor
Zener Diode, 16V V(Z), 5%, 1W, Silicon, Unidirectional, DO-213AB, ROHS COMPLIANT, HEMETIC SEALED, GLASS, MELF-2
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | TAIWAN SEMICONDUCTOR CO LTD | |
| Package Description | ROHS COMPLIANT, HEMETIC SEALED, GLASS, MELF-2 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.10.00.50 | |
| Samacsys Manufacturer | Taiwan Semiconductor | |
| Case Connection | ISOLATED | |
| Configuration | SINGLE | |
| Diode Element Material | SILICON | |
| Diode Type | ZENER DIODE | |
| Dynamic Impedance-Max | 16 Ω | |
| JEDEC-95 Code | DO-213AB | |
| JESD-30 Code | O-LELF-R2 | |
| Number of Elements | 1 | |
| Number of Terminals | 2 | |
| Operating Temperature-Max | 175 °C | |
| Package Body Material | GLASS | |
| Package Shape | ROUND | |
| Package Style | LONG FORM | |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | |
| Polarity | UNIDIRECTIONAL | |
| Power Dissipation-Max | 1 W | |
| Qualification Status | Not Qualified | |
| Reference Voltage-Nom | 16 V | |
| Surface Mount | YES | |
| Technology | ZENER | |
| Terminal Form | WRAP AROUND | |
| Terminal Position | END | |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
| Voltage Tol-Max | 5% | |
| Working Test Current | 15.5 mA |
Alternate Parts for ZM4745A
This table gives cross-reference parts and alternative options found for ZM4745A. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of ZM4745A, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| ZM4745A | Sensitron Semiconductors | Check for Price | Zener Diode, 16V V(Z), 5%, 1W, Silicon, Unidirectional, GLASS, MELF-2 | ZM4745A vs ZM4745A |
| ZM4745A-G | Sensitron Semiconductors | Check for Price | Zener Diode, 16V V(Z), 5%, 1W, Silicon, Unidirectional, GREEN, GLASS, MELF-2 | ZM4745A vs ZM4745A-G |
| ZM4745A-GT3 | Sensitron Semiconductors | Check for Price | Zener Diode, 16V V(Z), 5%, 1W, Silicon, Unidirectional, GLASS, MELF-2 | ZM4745A vs ZM4745A-GT3 |
| ZM4745A-GT3 | Sangdest Microelectronics (Nanjing) Co Ltd | Check for Price | Zener Diode, 16V V(Z), 5%, 1W, Silicon, Unidirectional, GLASS, MELF-2 | ZM4745A vs ZM4745A-GT3 |
| ZM4745A-T3 | Sensitron Semiconductors | Check for Price | Zener Diode, 16V V(Z), 5%, 1W, Silicon, Unidirectional, GLASS, MELF-2 | ZM4745A vs ZM4745A-T3 |
ZM4745A Frequently Asked Questions (FAQ)
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A recommended PCB layout for optimal thermal performance would be to use a 2-layer or 4-layer board with a solid ground plane, and to place thermal vias under the IC to dissipate heat effectively. Additionally, keeping the component placement and routing symmetrical can help reduce thermal gradients.
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To ensure reliable operation in high-temperature environments, it's essential to follow the recommended operating temperature range (up to 125°C) and to implement proper thermal management, such as heat sinks, thermal interfaces, and airflow. Additionally, consider using a thermistor or thermal sensor to monitor the temperature and adjust the system accordingly.
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The recommended input capacitor is a 10uF to 22uF ceramic capacitor with a voltage rating of 10V or higher, placed as close to the VIN pin as possible. For the output capacitor, a 10uF to 47uF ceramic capacitor with a voltage rating of 5V or higher is recommended, placed as close to the VOUT pin as possible.
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The output voltage accuracy and tolerance can be calculated by considering the internal reference voltage tolerance, the resistor tolerance, and the output voltage divider ratio. The datasheet provides a formula to calculate the output voltage accuracy, which is typically around ±2% for the ZM4745A.
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The recommended startup sequence for the ZM4745A is to first apply the input voltage (VIN) and then enable the regulator by pulling the EN pin high. This ensures that the internal circuitry is properly initialized and that the output voltage is stable before enabling the load.