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onsemi MM5Z6V2ST1
- Part No.:
- MM5Z6V2ST1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z6V2ST1.pdf
- Description:
- DIODE ZENER 6.2V 200MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,764
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Product details
Overview
MM5Z6V2ST1 from onsemi is a 6.2 V ±4% Zener diode in SOD−523 package, rated for 200 mW steady-state power dissipation at 25°C, with 100 Ω max Zener impedance at 5 mA test current and 185 pF max capacitance at 0 V/1 MHz - used for voltage regulation and ESD protection in space-constrained portable electronics.
For engineers reviewing the MM5Z6V2ST1 datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±4%), low-profile SOD−523 footprint (1.20 mm × 0.80 mm × 0.70 mm), Class 3 HBM ESD rating (>16 kV), thermal resistance (635 °C/W), and tight ZZK (10 Ω max at 1 mA).
Technical Context
The MM5Z6V2ST1 operates as a two-terminal voltage reference device, conducting in reverse bias above its specified Zener breakdown voltage (6.06–6.33 V) with controlled dynamic impedance. It maintains regulation across ambient temperatures from −65°C to +150°C and supports reflow soldering up to 260°C (MSL 1).
Its electrical behavior is defined by three critical operating points: IZT = 5 mA (for nominal VZ and ZZT), IZK = 1 mA (for knee impedance ZZK), and VR = 4.0 V (for IR ≤ 3.0 µA). Temperature coefficient is +0.4 mV/°C at IZT = 5 mA, indicating positive drift with temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.06 V min to 6.33 V max at IZT = 5 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 200 mW at TA = 25°C - sets maximum continuous power handling before thermal derating begins |
| Zener Impedance (ZZT) | 100 Ω max at IZT = 5 mA - determines AC voltage variation under load transients |
| Reverse Leakage (IR) | ≤3.0 µA at VR = 4.0 V - ensures minimal standby current in pre-breakdown state |
| Capacitance (C) | 185 pF max at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
| ESD Rating | Class 3 (>16 kV) per HBM - qualifies for direct I/O line protection without external TVS staging |
| Package | SOD−523 (Case 502) - 1.20 mm × 0.80 mm × 0.70 mm footprint enables placement on dense PCBs and flex assemblies |
Pinout & Package
SOD−523 is a two-terminal surface-mount package with cathode marked by a band (Pin 1) and anode unmarked (Pin 2). Body dimensions: 1.20 mm × 0.80 mm × 0.70 mm; lead finish: 100% matte tin; MSL level: 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage rail; reverse-biased terminal where Zener conduction occurs |
| 2 (Unmarked End) | Anode | Connected to circuit ground or lower-potential node; completes reverse-bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Pb-Free construction | Meets RoHS Directive 2011/65/EU; 100% matte Sn lead finish eliminates lead-based solder compatibility concerns |
| Tight VZ tolerance | ±4% (6.06–6.33 V) enables precise voltage clamping without post-production trimming |
| Low profile height | 0.70 mm max body height allows use under shields and in ultra-thin handheld enclosures |
| High ESD robustness | Class 3 HBM (>16 kV) permits direct integration on USB, audio jack, and button lines without added protection devices |
| Thermal reliability | Rated for junction temperatures up to +150°C and qualified for 260°C reflow - supports automotive under-hood and industrial control environments |
Applications
| Smartphone Power Rail Clamping | USB Port ESD Protection |
|---|---|
Use Scenario: Clamp transient overvoltage on 5 V USB VBUS line during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Two-terminal shunt regulator acting as primary ESD clamp between VBUS and GND. Use Value: 185 pF capacitance avoids signal integrity degradation on 480 Mbps USB 2.0 data lines while providing >16 kV HBM protection. | Use Scenario: Protect microcontroller GPIO pins connected to mechanical buttons exposed to user touch. IC Role / Device Role / Timing Role: Standby-mode Zener clamp limiting pin voltage to ≤6.33 V during ESD events. Use Value: 3.0 µA leakage at 4.0 V ensures negligible battery drain in always-on wearable systems. |
| Wearable Sensor Bias Reference | Industrial PLC Input Conditioning |
Use Scenario: Provide stable 6.2 V reference for analog front-end amplifiers in hearable devices. IC Role / Device Role / Timing Role: Precision Zener voltage source establishing DC bias point for op-amp input stages. Use Value: ±4% VZ tolerance and +0.4 mV/°C TC enable <1% total error across −20°C to +70°C operating range. | Use Scenario: Regulate 24 V supply down to 6.2 V for optocoupler LED driver in isolated digital input modules. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant forward current through optocoupler LED despite input ripple. Use Value: 100 Ω ZZT ensures <0.5 V output variation under 1 mA load step, guaranteeing consistent LED conduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C6V2 | Same 6.2 V nominal VZ, but SOD-323 package (1.7 mm × 1.3 mm); 350 mW PD; higher ZZT (150 Ω) | Larger footprint limits use in ultra-dense layouts; higher power suits higher-current clamping | Select when board space allows larger package and >200 mW dissipation is required |
| MMSZ4688 | 6.2 V VZ, SOD-123 package (3.7 mm × 1.6 mm); 500 mW PD; 100 Ω ZZT; 200 pF C | 3× longer body prevents routing under connectors; better for high-energy transients | Choose for industrial environments requiring higher surge energy handling and legacy SOD-123 layout reuse |
Compared with BZX584C6V2 and MMSZ4688, the MM5Z6V2ST1 offers the smallest PCB area (1.20 mm × 0.80 mm), lowest profile (0.70 mm), and best fit for miniaturized consumer electronics - while trading off absolute power handling for spatial efficiency.
Availability
MM5Z6V2ST1 is available at Aetrix Electronics and suitable for smartphone power rail clamping, USB port ESD protection, and wearable sensor bias reference applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for MM5Z6V2ST1 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM5Z series is part of onsemi's precision Zener regulator portfolio designed specifically for space-constrained, high-reliability voltage reference and transient suppression in portable and wearables electronics.
FAQ
What is the Zener voltage tolerance of MM5Z6V2ST1?
The MM5Z6V2ST1 has a Zener voltage range of 6.06 V to 6.33 V at IZT = 5 mA, corresponding to a ±4% tolerance around the nominal 6.2 V rating. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of the official datasheet and enables accurate voltage clamping without calibration. The MM5Z6V2ST1 achieves this via process-controlled doping and laser trimming during manufacturing.
Does MM5Z6V2ST1 support lead-free reflow soldering?
Yes, the MM5Z6V2ST1 is qualified for Pb-free reflow soldering at peak temperatures up to 260°C and meets MSL Level 1 requirements. Its 100% matte tin lead finish and void-free thermosetting plastic package ensure reliable wetting and intermetallic formation. The MM5Z6V2ST1 datasheet explicitly states compliance with JEDEC J-STD-020 and ON Semiconductor's soldering guidelines.
What is the maximum reverse leakage current for MM5Z6V2ST1?
The MM5Z6V2ST1 specifies a maximum reverse leakage current (IR) of 3.0 µA at VR = 4.0 V and TA = 25°C. This value is measured under standardized test conditions and reflects the device's ability to remain effectively non-conductive below its Zener knee. Designers rely on this parameter when sizing pull-up resistors or calculating standby power in battery-powered MM5Z6V2ST1 applications.
How does the temperature coefficient affect MM5Z6V2ST1 performance?
The MM5Z6V2ST1 has a temperature coefficient of +0.4 mV/°C at IZT = 5 mA, meaning its Zener voltage increases by approximately 0.4 mV for each degree Celsius rise in junction temperature. This positive drift is typical for Zeners in the 5–7 V range and must be factored into precision reference designs operating across wide temperature ranges. The MM5Z6V2ST1 datasheet provides derating curves to support thermal modeling.
Is MM5Z6V2ST1 suitable for ESD protection in USB 2.0 interfaces?
Yes, the MM5Z6V2ST1 is suitable for USB 2.0 ESD protection due to its 185 pF capacitance at 0 V/1 MHz - low enough to avoid signal integrity issues at 480 Mbps - and Class 3 HBM rating (>16 kV). Its 6.2 V VZ clamps transients safely below the 6.8 V absolute maximum rating of most USB transceivers. The MM5Z6V2ST1 is commonly deployed on VBUS and D+/D− lines in compact portable designs.
MM5Z6V2ST1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 4 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
MM5Z6V2ST1 FAQ
1.How can I place an order for MM5Z6V2ST1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z6V2ST1 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 MM5Z6V2ST1 reliable?
The price and inventory of MM5Z6V2ST1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z6V2ST1 is usually 5 days.
3.What payment methods are accepted for MM5Z6V2ST1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z6V2ST1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z6V2ST1?
MM5Z6V2ST1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z6V2ST1 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 MM5Z6V2ST1?
For technical support, including MM5Z6V2ST1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z6V2ST1 requirements.
6.How does Aetrix verify that MM5Z6V2ST1 is sourced from the original manufacturer or authorized distributors?
All MM5Z6V2ST1 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 MM5Z6V2ST1 meets industry standards.
7.What is the process for return or replacement of MM5Z6V2ST1?
All MM5Z6V2ST1 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z6V2ST1, 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 MM5Z6V2ST1 part is unused and in its original packaging.
Return procedure for MM5Z6V2ST1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z6V2ST1 Tags
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