onsemi MM5Z6V2T5G
- Part No.:
- MM5Z6V2T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z6V2T5G.pdf
- Description:
- DIODE ZENER 6.2V 500MW SOD523
- Quantity:
- Payment:

- Shipping:

Inventory:33,210
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Product details
Overview
MM5Z6V2T5G from onsemi is a 6.2 V ±5% Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation, 10 Ω dynamic impedance at 5 mA test current, and 185 pF capacitance at 0 V/1 MHz - used for precision voltage reference and overvoltage clamping in space-constrained portable electronics.
For engineers reviewing the MM5Z6V2T5G datasheet, pinout, applications, or equivalent options, key selection criteria include its 6.2 V nominal Zener voltage with ±5% tolerance, low 10 Ω Zener impedance, Class 3 ESD rating (>16 kV HBM), and SOD-523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage-regulating diode, conducting in reverse breakdown to maintain stable voltage across load circuits. Its 6.2 V nominal Zener voltage is specified at IZT = 5 mA, with temperature coefficient of +0.4 mV/°C and leakage current ≤3 µA at 4.0 V reverse bias.
The SOD-523 package enables surface-mount integration with 1.20 mm × 0.80 mm body and 0.7 mm height, supporting reflow up to 260 °C and meeting MSL 1 requirements. It features 100% matte tin lead finish and UL 94 V-0 compliant epoxy molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal, 5.8–6.6 V range at 5 mA - defines precise clamping threshold for protection circuits |
| Power Dissipation (PD) | 500 mW at 25 °C, derated 4.0 mW/°C above ambient - sets maximum continuous thermal load on PCB |
| Zener Impedance (ZZT) | 10 Ω max at IZT = 5 mA - ensures minimal voltage shift under varying load current |
| Reverse Leakage (IR) | ≤3 µA at VR = 4.0 V - guarantees low standby power loss in battery-powered systems |
| Capacitance (C) | 185 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - provides robust handling and system-level ESD immunity |
| Package | SOD-523 (Case 502) - 1.20 mm × 0.80 mm × 0.70 mm footprint ideal for ultra-compact mobile designs |
Pinout & Package
SOD-523 package: ultra-miniature surface-mount case with cathode marked by polarity band; 100% matte tin finish; qualified for 260 °C reflow; meets MSL 1 moisture sensitivity level.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased during Zener operation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes conduction path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD-523 packaging | 1.20 mm × 0.80 mm × 0.70 mm body enables placement in <1.5 mm² board area |
| Precision Zener voltage tolerance | ±5% at 6.2 V supports tight regulation without external trimming components |
| Low dynamic impedance | 10 Ω max ensures <62 mV voltage deviation across ±5 mA load variation |
| High ESD robustness | Class 3 HBM (>16 kV) eliminates need for discrete ESD protection in many front-end interfaces |
| Pb-free and RoHS-compliant construction | Meets global environmental compliance mandates without performance trade-offs |
Applications
| Smartphone Power Rail Protection | USB Interface Voltage Clamping |
|---|---|
|
Use Scenario: Protecting 5 V USB VBUS line from transient overvoltage events in compact handheld devices. IC Role / Device Role / Timing Role: Zener clamping diode placed between VBUS and GND to shunt surge energy before it reaches downstream ICs. Use Value: 6.2 V breakdown threshold allows safe margin below 5.5 V USB specification while maintaining fast response via low 10 Ω ZZT. |
Use Scenario: Stabilizing reference voltage for ADC input scaling in wearable health monitors. IC Role / Device Role / Timing Role: Precision voltage reference source providing stable 6.2 V for analog front-end gain calibration. Use Value: ±5% tolerance and +0.4 mV/°C tempco enable <±0.5% reference accuracy over 0–70 °C operating range. |
| IoT Sensor Node ESD Suppression | Automotive Body Control Module (BCM) Signal Conditioning |
|
Use Scenario: Protecting I²C data lines against ESD strikes in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Low-capacitance (185 pF) Zener placed across SDA/SCL to ground for fast transient suppression. Use Value: 185 pF capacitance avoids signal rise-time degradation on 400 kHz I²C bus while delivering >16 kV HBM immunity. |
Use Scenario: Regulating auxiliary 5 V supply rail in automotive BCM modules using AEC-Q101-qualified parts. IC Role / Device Role / Timing Role: Voltage stabilization element in low-current bias networks for CAN transceiver reference inputs. Use Value: SZ-prefix variant available (SZMM5Z6V2T5G); -65 °C to +150 °C operating range supports under-hood environments. |
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, ±5% tolerance, but SOD-323 package (1.7 × 1.3 mm) - 42% larger footprint | Higher 15 Ω ZZT and 200 pF capacitance - less suitable for high-speed or ultra-dense layouts | Select when legacy SOD-323 land pattern exists and board rework is not feasible |
| MMSZ4687T1G | 6.2 V nominal, ±5%, but 350 mW power rating and 30 Ω ZZT - lower power handling and higher impedance | Designed for general-purpose use; lacks Class 3 ESD rating and tighter thermal specs | Prefer for cost-sensitive non-portable applications where ESD robustness and miniaturization are secondary |
Compared with BZX584C6V2 and MMSZ4687T1G, the MM5Z6V2T5G delivers superior combination of ultra-small SOD-523 size, lowest ZZT (10 Ω), highest ESD rating (>16 kV), and full AEC-Q101 qualification path - making it optimal for next-gen portable and automotive edge nodes.
Availability
MM5Z6V2T5G is available at Aetrix Electronics and suitable for smartphone power rail protection, USB interface voltage clamping, and IoT sensor node ESD suppression requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for MM5Z6V2T5G 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 management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MM5ZxxxT5G series targets space-constrained, high-reliability applications - designed specifically to deliver precision Zener regulation in the smallest possible SOD-523 footprint with industry-leading ESD robustness and thermal stability.
FAQ
What is the Zener voltage tolerance of MM5Z6V2T5G?
The MM5Z6V2T5G has a nominal Zener voltage of 6.2 V with a standard tolerance of ±5%, meaning its actual breakdown voltage falls within 5.8 V to 6.6 V when tested at IZT = 5 mA and TA = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet.
Does MM5Z6V2T5G meet automotive qualification standards?
The base MM5Z6V2T5G is not automotive-qualified, but its SZ-prefix variant SZMM5Z6V2T5G is AEC-Q101 qualified and PPAP capable. The SZ version shares identical electrical specs and SOD-523 packaging, differing only in process control and traceability for automotive applications.
What is the maximum power dissipation for MM5Z6V2T5G at 70 °C ambient?
At 70 °C ambient, MM5Z6V2T5G's maximum power dissipation is 320 mW. This is calculated from its 500 mW rating at 25 °C and 4.0 mW/°C derating factor: 500 − (70 − 25) × 4.0 = 320 mW - verified in the Maximum Ratings table of the onsemi datasheet.
How is polarity identified on the MM5Z6V2T5G SOD-523 package?
MM5Z6V2T5G uses Style 1 marking: Pin 1 (cathode) is identified by a visible polarity band on the banded end of the SOD-523 case. Pin 2 (anode) is the opposite, unmarked end - confirmed in the Generic Marking Diagram and Mechanical Case Outline section of the datasheet.
What is the Zener impedance of MM5Z6V2T5G at its test current?
The MM5Z6V2T5G has a maximum Zener impedance (ZZT) of 10 Ω at IZT = 5 mA and TA = 25 °C. This low dynamic impedance ensures minimal voltage variation under changing load conditions and is specified in the Electrical Characteristics table on page 3 of the onsemi datasheet.
MM5Z6V2T5G 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):
- 6.2 V
- Tolerance:
- ±6.45%
- Power - Max:
- 500 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 (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
MM5Z6V2T5G FAQ
1.How can I place an order for MM5Z6V2T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z6V2T5G 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 MM5Z6V2T5G reliable?
The price and inventory of MM5Z6V2T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z6V2T5G is usually 5 days.
3.What payment methods are accepted for MM5Z6V2T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z6V2T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z6V2T5G?
MM5Z6V2T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z6V2T5G 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 MM5Z6V2T5G?
For technical support, including MM5Z6V2T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z6V2T5G requirements.
6.How does Aetrix verify that MM5Z6V2T5G is sourced from the original manufacturer or authorized distributors?
All MM5Z6V2T5G 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 MM5Z6V2T5G meets industry standards.
7.What is the process for return or replacement of MM5Z6V2T5G?
All MM5Z6V2T5G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z6V2T5G, 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 MM5Z6V2T5G part is unused and in its original packaging.
Return procedure for MM5Z6V2T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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