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onsemi MM5Z6V8T5G
- Part No.:
- MM5Z6V8T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z6V8T5G.pdf
- Description:
- DIODE ZENER 6.8V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,578
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Product details
Overview
MM5Z6V8T5G from onsemi is a 6.8 V ±5% Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation, 15 Ω max Zener impedance at 5 mA test current, and 16 kV ESD rating (HBM). It regulates voltage in low-power biasing, reference, and overvoltage protection circuits for space-constrained portable electronics.
For engineers reviewing the MM5Z6V8T5G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance, thermal derating behavior above 25 °C, junction-to-ambient thermal resistance, reverse leakage at 4.0 V, and compatibility with Pb-free reflow profiles up to 260 °C.
Technical Context
This device operates as a two-terminal voltage reference by exploiting controlled reverse breakdown in a silicon p-n junction. Its regulation accuracy depends on stable test current (IZT = 5 mA), temperature coefficient of +1.2 mV/°C, and low dynamic impedance (ZZT ≤ 15 Ω) near nominal voltage.
Designed for surface-mount use on FR-4 PCBs with 1 cm² copper pad, it delivers predictable clamping under transient overvoltage while maintaining < 2 µA reverse leakage at VR = 4.0 V and supporting full MSL 1 moisture sensitivity compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V min / 6.8 V nom / 7.2 V max @ IZT = 5 mA - defines regulated output range under standard test conditions |
| Power Dissipation (PD) | 500 mW @ TA = 25 °C, derates 4.0 mW/°C above - sets maximum continuous safe operating power on standard PCB |
| Zener Impedance (ZZT) | ≤ 15 Ω @ IZT = 5 mA - determines voltage regulation stiffness against load current variation |
| Reverse Leakage (IR) | ≤ 2 µA @ VR = 4.0 V - ensures minimal quiescent current in standby or sensing paths |
| ESD Rating (HBM) | > 16 kV - provides robust handling immunity without external protection in handheld assembly |
| Thermal Resistance (RJA) | 250 °C/W - enables thermal modeling of junction temperature rise under real PCB layout conditions |
| Package | SOD-523 (1.20 × 0.80 × 0.60 mm) - supports high-density routing and automated placement in ultra-compact designs |
Pinout & Package
SOD-523 is a two-terminal surface-mount package with cathode marked by polarity band. Body dimensions: 1.20 mm × 0.80 mm × 0.60 mm; mounting position unrestricted; qualified for 260 °C reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation; polarity band must align with PCB silkscreen |
| 2 (Unbanded End) | Anode | Connected to circuit ground or lower potential; completes current path during regulation or forward conduction |
Key Features
| Feature | Design Value |
|---|---|
| Standard tolerance Zener voltage | ±5% (6.4–7.2 V) - enables predictable voltage reference without custom trimming |
| Pb-Free and RoHS-compliant construction | 100% matte tin lead finish - meets global environmental compliance and eliminates lead-based solder compatibility concerns |
| Low-profile SOD-523 package | 0.60 mm height - allows stacking under shields or integration into sub-1 mm board stacks |
| High ESD robustness | Class 3 HBM (>16 kV) - reduces need for external TVS in consumer interface lines |
| MSL 1 moisture sensitivity | No dry-pack or baking required before reflow - simplifies manufacturing logistics and reduces handling cost |
Applications
| Bias Reference for RF Power Amplifiers | Voltage Clamp in USB Interface Protection |
|---|---|
Use Scenario: Providing stable gate bias voltage to GaAs FETs in cellular front-end modules where supply ripple must be suppressed below 10 mV. IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing fixed DC reference point independent of load current variation. Use Value: 15 Ω Zener impedance ensures < 0.15 mV output shift per 10 µA load change, meeting RF amplifier stability requirements. | Use Scenario: Clamping D+ and D− lines to prevent > 5.5 V transients from damaging USB PHY ICs during hot-plug events. IC Role / Device Role / Timing Role: Fast-acting overvoltage protector diverting surge current away from sensitive transceiver inputs. Use Value: 2 µA leakage at 4.0 V avoids signal integrity degradation, while 16 kV HBM rating withstands repeated human-handling ESD. |
| ADC Reference Stabilization in Wearables | Microcontroller Reset Circuit Threshold |
Use Scenario: Stabilizing internal reference voltage for 12-bit SAR ADCs in battery-powered fitness trackers with tight 3.3 V rail tolerances. IC Role / Device Role / Timing Role: Precision shunt reference generating clean 2.5 V or 3.0 V node from higher supply via resistor divider. Use Value: ±5% VZ tolerance and +1.2 mV/°C TC allow calibration compensation, enabling < 0.5 LSB drift over 0–60 °C. | Use Scenario: Setting precise brown-out detection threshold (e.g., 2.7 V) for ARM Cortex-M0+ reset logic in smart sensor nodes. IC Role / Device Role / Timing Role: Passive voltage threshold detector feeding comparator input or dedicated BOD pin. Use Value: Low 0.7 mm body height fits beneath MCU QFN packages; 500 mW rating sustains brief dropout surges without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C6V8 | Same 6.8 V nominal, ±5% tolerance, but SOD-323 package (1.7 × 1.3 × 0.9 mm); 350 mW PD; 40 Ω ZZT | Larger footprint and lower power rating limit use in ultra-dense layouts or higher-current bias networks | Select when SOD-323 is already standardized in design and 350 mW suffices |
| MMSZ4687T1G | 6.8 V nominal, ±5%, SOD-123 package (3.7 × 1.6 × 1.1 mm); 500 mW PD; 15 Ω ZZT; same onsemi process | 3× larger area and height restrict use in sub-1 mm-thick devices or stacked assemblies | Prefer when mechanical robustness or hand-soldering accessibility outweighs size constraints |
Compared with BZX584C6V8 and MMSZ4687T1G, MM5Z6V8T5G offers the smallest footprint and lowest profile among 6.8 V Zeners with matched 500 mW rating and 15 Ω impedance, making it optimal for next-generation wearables and miniaturized IoT endpoints.
Availability
MM5Z6V8T5G is available at Aetrix Electronics and suitable for cellular phone power management, handheld portable voltage references, and high-density PC board overvoltage protection requiring stable component supply across production lifecycles.
Supply support for MM5Z6V8T5G 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 focused on energy-efficient innovation for automotive, industrial, cloud, and intelligent edge applications.
The MM5ZxxxT5G series targets space-constrained portable electronics, delivering precision Zener regulation in the industry's smallest standard surface-mount package without sacrificing reliability or thermal performance.
FAQ
What is the maximum reverse leakage current for MM5Z6V8T5G at 4.0 V?
The MM5Z6V8T5G exhibits a maximum reverse leakage current of 2 µA when biased at 4.0 V, as specified in the Electrical Characteristics table on page 3 of the onsemi datasheet. This low leakage ensures minimal parasitic loading in precision reference and sensing circuits where current budget is constrained. The value is measured at TA = 25 °C and applies directly to MM5Z6V8T5G without derating.
Does MM5Z6V8T5G support Pb-free reflow soldering?
Yes, MM5Z6V8T5G is Pb-free and RoHS compliant, with 100% matte tin lead finish. It is qualified for peak reflow temperatures up to 260 °C and meets JEDEC J-STD-020 MSL 1 requirements, meaning no dry-pack or baking is needed prior to soldering. This makes MM5Z6V8T5G compatible with standard lead-free assembly processes used for modern consumer electronics.
What is the Zener impedance of MM5Z6V8T5G and why does it matter?
The MM5Z6V8T5G has a maximum Zener impedance (ZZT) of 15 Ω at IZT = 5 mA. This parameter quantifies how tightly the device maintains its nominal 6.8 V output under varying load currents - lower impedance means less voltage deviation. For example, a 10 mA load swing causes only ~150 mV shift, critical for stable biasing in RF amplifiers or ADC references where regulation stiffness directly impacts system accuracy.
Can MM5Z6V8T5G be used in automotive applications?
The standard MM5Z6V8T5G is not AEC-Q101 qualified; however, the SZMM5Z6V8T5G variant - identical electrically and mechanically but with automotive-grade traceability, PPAP capability, and unique site control - is certified for automotive use. Engineers requiring automotive qualification must specify the SZ-prefix part; MM5Z6V8T5G itself is intended for commercial portable and industrial applications.
How does the temperature coefficient affect MM5Z6V8T5G performance?
The MM5Z6V8T5G has a temperature coefficient of +1.2 mV/°C, meaning its Zener voltage increases by approximately 1.2 mV for each degree Celsius rise in junction temperature. At 6.8 V nominal, this yields ~0.018% per °C drift. In applications like precision references, this drift must be compensated via calibration or circuit design - for instance, pairing with a negative-TC component to achieve net zero drift over operating range.
MM5Z6V8T5G 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):
- 6.8 V
- Tolerance:
- ±5.88%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 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
MM5Z6V8T5G FAQ
1.How can I place an order for MM5Z6V8T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z6V8T5G 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 MM5Z6V8T5G reliable?
The price and inventory of MM5Z6V8T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z6V8T5G is usually 5 days.
3.What payment methods are accepted for MM5Z6V8T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z6V8T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z6V8T5G?
MM5Z6V8T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z6V8T5G 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 MM5Z6V8T5G?
For technical support, including MM5Z6V8T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z6V8T5G requirements.
6.How does Aetrix verify that MM5Z6V8T5G is sourced from the original manufacturer or authorized distributors?
All MM5Z6V8T5G 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 MM5Z6V8T5G meets industry standards.
7.What is the process for return or replacement of MM5Z6V8T5G?
All MM5Z6V8T5G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z6V8T5G, 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 MM5Z6V8T5G part is unused and in its original packaging.
Return procedure for MM5Z6V8T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z6V8T5G Tags
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