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onsemi MM5Z4V7ST5G
- Part No.:
- MM5Z4V7ST5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z4V7ST5G.pdf
- Description:
- DIODE ZENER 4.7V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:15,237
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Product details
Overview
MM5Z4V7ST5G from onsemi is a 4.55 V to 4.75 V, ±5% tolerance Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 80 Ω maximum Zener impedance at 5 mA test current and 2.0 µA reverse leakage at 3.0 V. It provides precision voltage regulation in space-constrained portable electronics.
For engineers reviewing the MM5Z4V7ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include its tight 5% Zener voltage tolerance, low 260 pF capacitance at 0 V, −3.5 mV/°C temperature coefficient, 16 kV HBM ESD rating, and SOD-523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference by maintaining a stable reverse breakdown voltage across its cathode-anode terminals under controlled current conditions. Its 5 mA test current (IZT) and 1.0 mA knee current (IZK) define regulation onset and linearity boundaries, while the 80 Ω dynamic impedance (ZZT) ensures minimal output voltage variation with load changes.
The SOD-523 package enables surface-mount integration with thermal resistance of 250 °C/W junction-to-ambient on FR-4 board, supporting operation from −65 °C to +150 °C. Its Pb-free matte tin lead finish complies with RoHS and meets MSL 1 reflow requirements up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.55 V to 4.75 V at 5 mA - defines precise clamping threshold for overvoltage protection |
| Tolerance | ±5% - enables accurate voltage reference without post-production trimming |
| Power Rating (PD) | 500 mW at 25 °C - supports sustained regulation in compact handheld PCBs |
| Zener Impedance (ZZT) | 80 Ω max at IZT = 5 mA - limits output voltage shift under dynamic current loads |
| Capacitance (C) | 260 pF max at 0 V, 1 MHz - minimizes signal coupling in RF-sensitive circuits |
| ESD Rating | Class 3 (>16 kV HBM) - withstands handling and assembly electrostatic discharge |
| Operating Temp | −65 °C to +150 °C - suitable for automotive under-hood and industrial environments |
Pinout & Package
SOD-523 surface-mount package: 1.20 mm × 0.80 mm body, 0.60 mm height, void-free thermosetting plastic case, matte tin lead finish, MSL 1 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased terminal | Connected to regulated voltage node; polarity band identifies this terminal |
| 2 (Anode) | Reference/ground terminal | Typically tied to system ground or lower-potential rail for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±5% ensures predictable clamping without calibration in production |
| Low-profile SOD-523 | 0.60 mm height enables stacking and ultra-thin portable designs |
| High ESD robustness | 16 kV HBM rating eliminates need for external ESD protection in many cases |
| Pb-free & RoHS compliant | Meets global environmental regulations without compromising solderability |
| Stable tempco | −3.5 mV/°C enables predictable drift compensation in temperature-varying systems |
Applications
| Cellular Phone Power Rails | USB-C Port Protection |
|---|---|
Use Scenario: Regulating auxiliary 5 V supply rails in LTE/5G smartphones where board area is constrained. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage clamp to prevent overvoltage damage to PMIC inputs. Use Value: 4.55–4.75 V breakdown range matches USB PD 5 V nominal with margin, while 260 pF capacitance avoids signal integrity issues on adjacent high-speed traces. | Use Scenario: Protecting CC logic lines and VCONN circuitry in USB-C receptacles against transient surges. IC Role / Device Role / Timing Role: Bidirectional transient suppressor leveraging Zener reverse conduction and low forward voltage (0.9 V max). Use Value: 16 kV HBM ESD rating exceeds IEC 61000-4-2 Level 4, enabling single-device compliance without added TVS arrays. |
| Wearable Sensor Node Reference | Industrial IoT Edge Controller |
Use Scenario: Providing stable 4.7 V reference for ADC biasing in battery-powered health monitors. IC Role / Device Role / Timing Role: Precision voltage reference source with minimal self-heating due to 500 mW rating and low ZZT. Use Value: ±5% tolerance and −3.5 mV/°C tempco allow <±10 mV total drift over −20 °C to +70 °C operating range. | Use Scenario: Clamping 24 V fieldbus interface inputs in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Primary overvoltage limiter in input conditioning stage before optocoupler isolation. Use Value: −65 °C to +150 °C junction temperature range supports extended industrial ambient operation without derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C4V7 | 4.7 V ±5%, SOD-523, 300 mW rating, 100 Ω ZZT | Lower power handling limits use in continuous regulation; higher impedance affects accuracy under load | Select when cost sensitivity outweighs power margin needs and layout allows same footprint |
| MMSZ4700T1G | 4.7 V ±5%, SOD-123, 500 mW, 100 Ω ZZT, 300 pF C | Larger 2.9 mm × 1.3 mm package increases board area; higher capacitance impacts high-frequency noise rejection | Choose if existing SOD-123 land pattern must be reused and 0.6 mm height constraint is relaxed |
Compared with BZX584C4V7 and MMSZ4700T1G, MM5Z4V7ST5G delivers superior regulation stability via lower 80 Ω ZZT and reduced 260 pF capacitance, while maintaining identical 4.7 V nominal voltage and SOD-523 footprint-making it optimal for next-generation miniaturized power management.
Availability
MM5Z4V7ST5G is available at Aetrix Electronics and suitable for cellular phone power rails, USB-C port protection, and wearable sensor node reference requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MM5Z4V7ST5G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MM5ZxxxST5G series targets space-constrained, high-reliability voltage regulation in portable and industrial electronics, emphasizing tight tolerance, low capacitance, and robust ESD performance in miniature SOD-523 packaging.
FAQ
What is the Zener voltage range for MM5Z4V7ST5G?
The MM5Z4V7ST5G has a specified Zener voltage range of 4.55 V to 4.75 V at 5 mA test current (IZT), corresponding to a ±5% tolerance around the nominal 4.7 V rating. This range is guaranteed over the full operating temperature span and forms the basis for its use as a precision shunt regulator in low-power applications.
Does MM5Z4V7ST5G support automotive-grade requirements?
While the base MM5Z4V7ST5G is not AEC-Q101 qualified, the SZMM5Z4V7ST5G variant-identical in electrical and mechanical specifications-is explicitly qualified per AEC-Q101 and PPAP capable. Engineers requiring automotive qualification should specify the SZ-prefix version; the MM5Z4V7ST5G remains suitable for industrial and consumer applications demanding high reliability.
What is the maximum reverse leakage current for MM5Z4V7ST5G?
The MM5Z4V7ST5G exhibits a maximum reverse leakage current (IR) of 2.0 µA at 3.0 V reverse voltage (VR). This value is measured at 25 °C and reflects the device's ability to maintain high impedance below its breakdown threshold, critical for low-quiescent-current designs such as battery-operated sensors.
Can MM5Z4V7ST5G be used in high-frequency signal paths?
Yes, the MM5Z4V7ST5G is suitable for high-frequency signal path protection due to its low 260 pF capacitance at 0 V and 1 MHz, which minimizes loading effects on RF or high-speed digital lines. Its 16 kV HBM ESD rating further supports use in interfaces like USB-C CC lines where transient immunity and signal integrity are both essential.
What is the thermal resistance of MM5Z4V7ST5G on an FR-4 board?
The MM5Z4V7ST5G has a thermal resistance from junction-to-ambient (RJA) of 250 °C/W when mounted on a standard FR-4 printed circuit board with a 1 cm² copper pad. This value assumes single-sided copper and defines the device's self-heating behavior, supporting reliable 500 mW operation only up to 25 °C ambient unless derated linearly at 4.0 mW/°C above that temperature.
MM5Z4V7ST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
MM5Z4V7ST5G FAQ
1.How can I place an order for MM5Z4V7ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z4V7ST5G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MM5Z4V7ST5G reliable?
The price and inventory of MM5Z4V7ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z4V7ST5G is usually 5 days.
3.What payment methods are accepted for MM5Z4V7ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z4V7ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z4V7ST5G?
MM5Z4V7ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z4V7ST5G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MM5Z4V7ST5G?
For technical support, including MM5Z4V7ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z4V7ST5G requirements.
6.How does Aetrix verify that MM5Z4V7ST5G is sourced from the original manufacturer or authorized distributors?
All MM5Z4V7ST5G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MM5Z4V7ST5G meets industry standards.
7.What is the process for return or replacement of MM5Z4V7ST5G?
All MM5Z4V7ST5G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z4V7ST5G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MM5Z4V7ST5G part is unused and in its original packaging.
Return procedure for MM5Z4V7ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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