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onsemi MM3Z6V2ST1
- Part No.:
- MM3Z6V2ST1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z6V2ST1.pdf
- Description:
- DIODE ZENER 6.2V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,308
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Product details
Overview
MM3Z6V2ST1 from onsemi is a 6.2 V ±2.5% tolerance Zener diode in SOD−323 package, rated for 200 mW steady-state power dissipation, 100 Ω dynamic impedance at 5 mA test current, and 185 pF capacitance at 0 V bias. It provides precision voltage regulation in space-constrained portable electronics such as smartphone power rails and USB interface protection circuits.
For engineers reviewing the MM3Z6V2ST1 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, ESD robustness (Class 3, >16 kV HBM), and direct alternative options with documented functional differences for low-voltage reference and overvoltage clamp design.
Technical Context
The MM3Z6V2ST1 operates as a two-terminal voltage reference device with cathode-anode polarity, relying on controlled reverse breakdown to maintain stable 6.2 V regulation across 1–10 mA operating current. Its 0.9 mm body height and 1.7 mm × 1.25 mm footprint enable high-density PCB placement without compromising thermal performance.
Thermal resistance is 635°C/W (junction-to-ambient, FR-5 board), requiring derating above 25°C at 1.5 mW/°C. The device exhibits a positive temperature coefficient of +0.4 mV/°C at 5 mA, enabling predictable drift compensation in temperature-sensitive analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.06 V to 6.33 V at 5 mA - defines regulated output range for precision clamping or reference generation |
| Power Dissipation (PD) | 200 mW at 25°C - sets maximum continuous power handling before thermal derating begins |
| Zener Impedance (ZZT) | 100 Ω max at IZT = 5 mA - determines AC ripple rejection capability in shunt regulator configurations |
| Reverse Leakage (IR) | 3.0 μA max at VR = 4.0 V - ensures minimal standby current in battery-powered systems |
| Capacitance (C) | 185 pF max at 0 V, 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent layouts |
| ESD Rating | Class 3 (>16 kV HBM) - supports robust handling during automated assembly and end-user interface protection |
| Package | SOD−323 (Case 477) - surface-mount, 2-pin, 0.9 mm height, Pb-free compatible, UL 94 V−0 rated |
Pinout & Package
SOD−323 package: 2-pin surface-mount, cathode marked by band, body dimensions 1.70 mm × 1.25 mm × 0.90 mm, weight 4.507 mg/unit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased Zener terminal | Connected to regulated node; carries reverse current during breakdown; polarity band identifies this terminal |
| 2 (Anode) | Reference ground terminal | Typically tied to system ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener tolerance | ±2.5% at 6.2 V - enables accurate voltage thresholding without external trimming |
| Low-profile packaging | 0.9 mm height - allows placement under connectors or beneath shields in ultra-thin mobile designs |
| High ESD immunity | Class 3 (>16 kV HBM) - eliminates need for supplemental TVS in many consumer interface ports |
| Pb-free compatibility | Sn-only or Pb−Sn plating - meets RoHS and JEDEC J-STD-020 reflow requirements |
| Stable temperature coefficient | +0.4 mV/°C - supports predictable drift modeling in ambient-temperature varying environments |
Applications
| USB 2.0 Data Line Protection | Smartphone Battery Monitor Reference |
|---|---|
Use Scenario: Clamping transient surges on D+/D− lines during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Two-terminal shunt regulator placed between data line and ground. Use Value: 185 pF capacitance avoids signal integrity degradation at 480 Mbps; 6.2 V rating aligns with USB VBUS tolerance margin. |
Use Scenario: Providing stable 6.2 V reference for ADC input in Li-ion battery fuel gauging circuitry. IC Role / Device Role / Timing Role: Passive voltage reference source for analog front-end scaling. Use Value: ±2.5% tolerance ensures <1% full-scale error in 12-bit battery voltage measurement over temperature. |
| IoT Sensor Node Power Rail Clamp | Industrial PLC Digital Input Threshold |
Use Scenario: Protecting 3.3 V microcontroller I/O pins from induced transients on long sensor cables. IC Role / Device Role / Timing Role: Low-capacitance Zener clamp connected anode-to-ground, cathode-to-I/O. Use Value: 3.0 μA leakage at 4.0 V minimizes quiescent current drain in battery-operated edge nodes. |
Use Scenario: Setting reliable logic-high detection threshold for 24 V DC digital inputs in factory automation. IC Role / Device Role / Timing Role: Series-connected Zener used with resistor divider to generate 6.2 V switching point. Use Value: 100 Ω dynamic impedance ensures stable threshold despite supply ripple up to 1 Vpp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B6V2,115 | 6.2 V ±5% tolerance, 300 mW rating, SOD-323 package, 150 Ω ZZT at 5 mA | Higher power and looser tolerance; better suited for general-purpose clamping where precision is secondary | Select when higher surge energy absorption is required and ±2.5% regulation is not critical |
| MMSZ4687T1G | 6.2 V ±5% tolerance, 500 mW rating, SOD-123 package, 100 Ω ZZT at 20 mA | Larger SOD-123 footprint (3.7 mm × 1.6 mm); requires layout revision; higher test current shifts operating point | Choose only if board redesign accommodates larger package and system current exceeds 10 mA |
Compared with BZX384-B6V2,115 and MMSZ4687T1G, the MM3Z6V2ST1 offers tighter voltage tolerance and lower profile in identical SOD−323 packaging-making it optimal for miniaturized, precision-referenced designs where space and accuracy are jointly constrained.
Availability
MM3Z6V2ST1 is available at Aetrix Electronics and suitable for smartphone power management, USB interface protection, and industrial sensor signal conditioning requiring stable component supply and consistent Zener voltage performance.
Supply support for MM3Z6V2ST1 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM3Z series targets compact, high-reliability voltage regulation in portable and space-constrained electronics, emphasizing tight tolerance, low capacitance, and robust ESD performance for modern mixed-signal systems.
FAQ
What is the Zener voltage tolerance of MM3Z6V2ST1?
The MM3Z6V2ST1 has a nominal Zener voltage of 6.2 V with a tolerance of ±2.5%, meaning its actual breakdown voltage falls between 6.06 V and 6.33 V when tested at 5 mA. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of the official datasheet and makes MM3Z6V2ST1 suitable for applications requiring precise voltage thresholds without calibration.
Does MM3Z6V2ST1 support Pb-free soldering processes?
Yes, MM3Z6V2ST1 is offered in a Pb-free package (denoted by the "G" suffix in MM3Z6V2ST1G), with Sn-only plating compliant with JEDEC J-STD-020. The maximum soldering temperature is 260°C for 10 seconds, matching standard lead-free reflow profiles. The base material and mold compound meet UL 94 V−0 flammability requirements.
What is the thermal derating behavior of MM3Z6V2ST1 above 25°C?
MM3Z6V2ST1 must be derated linearly above 25°C at 1.5 mW/°C, based on its 200 mW rating at 25°C and 635°C/W junction-to-ambient thermal resistance. At 75°C ambient, its usable power drops to 125 mW. This derating curve is shown in Figure 6 of the datasheet and applies to FR-5 board mounting with minimum pad size.
How does the capacitance of MM3Z6V2ST1 affect high-speed signal lines?
With a maximum capacitance of 185 pF at 0 V bias and 1 MHz, MM3Z6V2ST1 introduces minimal loading on USB 2.0 or I²C signal paths. Its low C value-combined with 100 Ω dynamic impedance-ensures signal rise/fall times remain unaffected while still providing effective ESD suppression, making MM3Z6V2ST1 appropriate for data-line protection in high-speed interfaces.
Can MM3Z6V2ST1 replace MM3Z6V2ST3 in existing designs?
Yes, MM3Z6V2ST1 and MM3Z6V2ST3 share identical electrical specifications and SOD−323 packaging, differing only in tape-and-reel quantity (3,000 vs. 10,000 units per reel). No PCB or schematic changes are needed when substituting MM3Z6V2ST1 for MM3Z6V2ST3, as both have identical marking (TE), thermal characteristics, and Zener performance.
MM3Z6V2ST1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- 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-323
MM3Z6V2ST1 FAQ
1.How can I place an order for MM3Z6V2ST1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z6V2ST1 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 MM3Z6V2ST1 reliable?
The price and inventory of MM3Z6V2ST1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z6V2ST1 is usually 5 days.
3.What payment methods are accepted for MM3Z6V2ST1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z6V2ST1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z6V2ST1?
MM3Z6V2ST1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z6V2ST1 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 MM3Z6V2ST1?
For technical support, including MM3Z6V2ST1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z6V2ST1 requirements.
6.How does Aetrix verify that MM3Z6V2ST1 is sourced from the original manufacturer or authorized distributors?
All MM3Z6V2ST1 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 MM3Z6V2ST1 meets industry standards.
7.What is the process for return or replacement of MM3Z6V2ST1?
All MM3Z6V2ST1 units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z6V2ST1, 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 MM3Z6V2ST1 part is unused and in its original packaging.
Return procedure for MM3Z6V2ST1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM3Z6V2ST1 Tags
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