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onsemi MM5Z22VT5G
- Part No.:
- MM5Z22VT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z22VT5G.pdf
- Description:
- DIODE ZENER 22V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
MM5Z22VT5G from onsemi is a 22 V, ±5% tolerance Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 55 Ω maximum Zener impedance at 5 mA test current and 0.05 μA reverse leakage at 17.6 V. It provides precision voltage regulation in space-constrained portable electronics.
For engineers reviewing the MM5Z22VT5G datasheet, pinout, applications, or equivalent options, key selection factors include its 22 V nominal Zener voltage, SOD-523 footprint compatibility, 16 kV HBM ESD rating, thermal derating behavior, and automotive-grade AEC-Q101 qualification status.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp or regulate voltage across load circuits. Its Zener voltage is specified at IZT = 5 mA with ±5% tolerance, and it exhibits a positive temperature coefficient of +15.4 mV/°C over the operating range.
The MM5Z22VT5G features low parasitic capacitance (85 pF at 0 V, 1 MHz), supports high-density PCB layouts due to its 1.20 mm × 0.80 mm body and 0.7 mm height, and meets MSL 1 reflow requirements up to 260 °C with Pb-free matte tin lead finish.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V nominal, 20.8–23.3 V min/max at IZT = 5 mA - defines regulated output voltage under standard test conditions |
| Power Rating (PD) | 500 mW at TA = 25 °C, derates 4.0 mW/°C above - sets maximum continuous dissipation on FR-4 board |
| Zener Impedance (ZZT) | 55 Ω max at IZT = 5 mA - determines regulation stiffness and output voltage variation under load changes |
| Reverse Leakage (IR) | 0.05 μA max at VR = 17.6 V - ensures minimal standby current in voltage-sense or protection circuits |
| ESD Rating | Class 3 (>16 kV) per HBM - enables robust handling in automated assembly and end-use environments |
| Package | SOD-523 (Case 502), 1.20 mm × 0.80 mm × 0.70 mm - supports ultra-compact designs on high-density PCBs |
| Temperature Coefficient | +15.4 mV/°C at IZT - quantifies VZ drift with ambient temperature change |
Pinout & Package
SOD-523 surface-mount package with cathode marked by polarity band; anode and cathode terminals are co-planar, designed for reflow soldering on FR-4 boards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 (Unbanded End) | Anode | Connected to circuit ground or lower-potential rail; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOD-523 footprint | Enables placement in <1.0 mm² board area - critical for wearable and handheld PCB miniaturization |
| 500 mW power capability in miniature package | Delivers higher regulation margin than competing 200–300 mW micro-SMD Zeners at same size |
| AEC-Q101 qualified (SZ prefix variant) | Validated for automotive subsystems requiring extended temperature and reliability compliance |
| 16 kV HBM ESD immunity | Eliminates need for external ESD protection in many consumer interface applications |
| Pb-free, RoHS-compliant construction | Meets global environmental regulations without compromising solderability or thermal performance |
Applications
| Smartphone Power Rail Clamping | USB Interface Overvoltage Protection |
|---|---|
|
Use Scenario: Clamping transient surges on 3.3 V or 5 V supply rails in smartphone baseband and RF modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and overvoltage clamp during ESD events or load-dump transients. Use Value: Prevents damage to sensitive PMICs and transceivers using only 0.96 mm² board area and no active control logic. |
Use Scenario: Protecting USB data lines and VBUS against hot-plug induced voltage spikes and ESD. IC Role / Device Role / Timing Role: Passive voltage clamp placed between signal line and ground to limit excursion beyond safe logic thresholds. Use Value: Achieves >16 kV HBM protection without adding capacitance that degrades 480 Mbps USB 2.0 signal integrity. |
| Wearable Sensor Bias Reference | Industrial IoT Node Voltage Monitoring |
|
Use Scenario: Providing stable bias voltage for analog front-end amplifiers in compact fitness trackers and hearables. IC Role / Device Role / Timing Role: Precision Zener reference supplying fixed 22 V-derived bias to op-amp gain stages or ADC references. Use Value: Delivers ±5% voltage accuracy with <85 pF parasitic capacitance, minimizing noise coupling into low-power sensor signals. |
Use Scenario: Monitoring battery voltage or auxiliary supply rails in battery-powered edge nodes with limited PCB real estate. IC Role / Device Role / Timing Role: Shunt-based voltage detection element feeding comparator input or MCU ADC channel. Use Value: Enables reliable undervoltage lockout (UVLO) or overvoltage warning with 0.05 μA leakage at 80% of VZ, extending battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C22LT1G | Same 22 V nominal, ±5% tolerance, but SOD-323 package (1.7 × 1.3 mm); 300 mW rating; 100 Ω ZZT | Larger footprint and lower power limit reduce suitability for ultra-dense layouts where MM5Z22VT5G's SOD-523 size is critical | Select MM5Z22VT5G when board area <1.0 mm² is required and 500 mW dissipation margin is needed |
| MMSZ5247BT1G | 22 V nominal, ±5%, SOD-123 package (3.7 × 1.6 mm); 500 mW rating; 30 Ω ZZT; no AEC-Q101 option | Significantly larger footprint limits use in wearables; lacks automotive qualification and 16 kV HBM rating | Choose MM5Z22VT5G for space-constrained automotive or portable designs requiring highest ESD robustness |
Compared with BZX584C22LT1G and MMSZ5247BT1G, the MM5Z22VT5G delivers identical voltage regulation performance in the smallest available footprint with superior thermal and ESD margins - making it optimal for next-generation miniaturized, high-reliability systems.
Availability
MM5Z22VT5G is available at Aetrix Electronics and suitable for smartphone power rail clamping, USB interface overvoltage protection, and wearable sensor bias reference applications requiring stable component supply and consistent SOD-523 packaging.
Supply support for MM5Z22VT5G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MM5Z22VT5G belongs to the MM5ZxxxT1G/Z series of miniature Zener regulators, engineered specifically for high-density portable electronics where board space, thermal efficiency, and ESD resilience are primary constraints.
FAQ
What is the Zener voltage tolerance of the MM5Z22VT5G?
The MM5Z22VT5G has a standard tolerance of ±5%, meaning its measured Zener voltage at 5 mA test current falls between 20.8 V and 23.3 V at 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet, and applies directly to the MM5Z22VT5G part number.
Is the MM5Z22VT5G suitable for automotive applications?
The MM5Z22VT5G itself is not AEC-Q101 qualified; however, its automotive-grade counterpart SZMM5Z22VT5G is fully AEC-Q101 qualified and PPAP capable. The MM5Z22VT5G shares identical electrical and mechanical specifications except for qualification status and traceability controls - making it appropriate for industrial and consumer use, while the SZ variant is required for automotive subsystems.
What is the maximum reverse leakage current for the MM5Z22VT5G?
The MM5Z22VT5G specifies a maximum reverse leakage current (IR) of 0.05 μA at VR = 17.6 V (80% of nominal VZ). This value is measured per the test conditions defined in the onsemi datasheet and reflects the device's ability to minimize standby current in precision voltage monitoring circuits.
Does the MM5Z22VT5G have a defined thermal resistance specification?
Yes, the MM5Z22VT5G has a junction-to-ambient thermal resistance (RJA) of 250 °C/W when mounted on a single-sided FR-4 board with a 1 cm² copper pad. This value is provided in the Maximum Ratings table and governs how much temperature rise occurs per milliwatt of dissipated power under standard board conditions.
What marking code identifies the MM5Z22VT5G on the SOD-523 package?
The MM5Z22VT5G is marked with "10" on the SOD-523 package body, as shown in the Device Marking column of the Electrical Characteristics table on page 3 of the onsemi datasheet. The "10" code uniquely identifies the 22 V variant within the MM5ZxxxT1G/T5G series and is accompanied by a cathode polarity band.
MM5Z22VT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- MM5ZxxxT1G
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±5.68%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
MM5Z22VT5G FAQ
1.How can I place an order for MM5Z22VT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z22VT5G 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 MM5Z22VT5G reliable?
The price and inventory of MM5Z22VT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z22VT5G is usually 5 days.
3.What payment methods are accepted for MM5Z22VT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z22VT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z22VT5G?
MM5Z22VT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z22VT5G 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 MM5Z22VT5G?
For technical support, including MM5Z22VT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z22VT5G requirements.
6.How does Aetrix verify that MM5Z22VT5G is sourced from the original manufacturer or authorized distributors?
All MM5Z22VT5G 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 MM5Z22VT5G meets industry standards.
7.What is the process for return or replacement of MM5Z22VT5G?
All MM5Z22VT5G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z22VT5G, 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 MM5Z22VT5G part is unused and in its original packaging.
Return procedure for MM5Z22VT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z22VT5G Tags
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