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onsemi MM5Z6V8T1
- Part No.:
- MM5Z6V8T1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z6V8T1.pdf
- Description:
- DIODE ZENER 6.8V 100MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:9,141
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Product details
Overview
MM5Z6V8T1 from onsemi is a 6.8 V, 100 mW Zener diode in SOD−523 package, designed for precision voltage regulation and overvoltage protection in space-constrained circuits. It delivers ±0.4 V tolerance at 5 mA test current, exhibits 15 Ω dynamic impedance at IZT, supports 4.5 pF capacitance at 0 V, and maintains ESD robustness to >16 kV (HBM). It is deployed in voltage reference and clamping functions within portable power rails.
For engineers reviewing the MM5Z6V8T1 datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage (6.8 V), power rating (100 mW), low-profile SOD−523 footprint (1.20 mm × 0.80 mm × 0.70 mm), temperature coefficient (+1.2 mV/°C), and reverse leakage (<2 µA at 5.0 V).
Technical Context
The MM5Z6V8T1 operates as a two-terminal, silicon planar Zener diode with sharp reverse breakdown characteristics. Its regulation function relies on controlled avalanche and Zener mechanisms, optimized for stable DC reference generation at low currents (IZT = 5 mA) and minimal thermal drift.
It features a cathode-anode terminal structure with unidirectional conduction, rated for junction temperatures from −65°C to +150°C and qualified per MSL 1 with 260°C reflow compatibility. The device uses void-free thermosetting plastic encapsulation meeting UL 94 V−0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V to 7.2 V at IZT = 5 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 100 mW at TA = 25°C - sets maximum continuous power handling on FR-5 board without derating |
| Zener Impedance (ZZT) | 15 Ω max at IZT = 5 mA - determines AC ripple rejection and regulation stiffness in feedback paths |
| Reverse Leakage (IR) | <2 µA at VR = 5.0 V - ensures minimal quiescent current draw in standby or high-impedance bias networks |
| Capacitance (C) | 155 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
| Temperature Coefficient | +1.2 mV/°C - quantifies voltage drift per degree Celsius, critical for stable references across operating range |
| ESD Rating (HBM) | >16 kV - enables direct integration into handheld and exposed I/O interfaces without external protection |
Pinout & Package
SOD−523 surface-mount package: 1.20 mm × 0.80 mm body, 0.70 mm height, matte tin lead finish, MSL 1 compliant, 260°C reflow capable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked End) | Cathode | Connected to regulated voltage node; polarity must be observed for proper reverse-bias operation |
| 2 | Anode | Ground or lower-potential reference point; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOD−523 footprint | 1.20 mm × 0.80 mm area - enables placement in dense mobile PCB layouts where board space is constrained |
| Low-profile height | 0.70 mm max - avoids interference with stacked components or shield cans in slim form factors |
| High ESD immunity | >16 kV HBM - eliminates need for discrete ESD protection in consumer interface lines |
| Precision voltage tolerance | ±0.4 V at 6.8 V nominal - supports tight reference requirements in analog sensing and ADC biasing |
| Stable temperature coefficient | +1.2 mV/°C - reduces calibration burden in industrial temperature ranges (−40°C to +85°C) |
Applications
| Smartphone Power Rail Clamping | USB Port Overvoltage Protection |
|---|---|
Use Scenario: Clamp transient surges on 5 V USB input rail in compact smartphone charging circuitry. IC Role / Device Role / Timing Role: Zener clamp diode placed between VBUS and GND to shunt excess energy above 6.8 V. Use Value: Prevents damage to downstream PMIC and USB controller ICs while occupying <1 mm² PCB area. |
Use Scenario: Protect microcontroller GPIO pins connected to USB D+ line from ESD events. IC Role / Device Role / Timing Role: Low-capacitance Zener (155 pF) used as bidirectional TVS-like clamp referenced to ground. Use Value: Provides >16 kV HBM protection without distorting 480 Mbps USB 2.0 data signals. |
| Wearable Sensor Reference Voltage | IoT Node Battery Monitor Threshold |
Use Scenario: Generate stable 6.8 V reference for analog front-end of optical heart-rate sensor. IC Role / Device Role / Timing Role: Zener-based shunt reference supplying bias to transimpedance amplifier and ADC driver. Use Value: Delivers <2 µA leakage and +1.2 mV/°C drift-enabling sub-1% measurement accuracy across −20°C to +70°C. |
Use Scenario: Set precise low-battery detection threshold (e.g., 6.8 V) in lithium-ion powered edge node. IC Role / Device Role / Timing Role: Zener diode feeding comparator input to trigger shutdown when battery voltage drops below regulation point. Use Value: Enables accurate state-of-charge estimation using only passive components and no active regulator overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C6V8 | Same 6.8 V nominal, but SOD-323 package (1.7 mm × 1.3 mm); 200 mW rating; higher ZZT (30 Ω) | Larger footprint and higher power dissipation limit - suitable where board area allows and higher surge energy must be absorbed | Select BZX584-C6V8 if layout permits larger pad geometry and system requires margin above 100 mW peak pulse handling |
| MMSZ4687 | 6.8 V nominal, SOD-123 package (3.7 mm × 1.6 mm); 500 mW rating; ZZT = 10 Ω; C = 200 pF | Significantly larger size and higher capacitance - better for high-energy clamping, less suitable for high-speed signal lines | Choose MMSZ4687 when robustness against repetitive transients outweighs board space and signal integrity constraints |
Compared with BZX584-C6V8 and MMSZ4687, the MM5Z6V8T1 offers the smallest PCB footprint and lowest capacitance among 6.8 V Zeners, making it optimal for ultra-compact, high-frequency–sensitive designs where strict size and signal fidelity are prioritized over absolute power handling.
Availability
MM5Z6V8T1 is available at Aetrix Electronics and suitable for smartphone power rail clamping, USB port overvoltage protection, and wearable sensor reference voltage applications requiring stable component supply and consistent parametric performance.
Supply support for MM5Z6V8T1 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 MM5Z6V8T1 belongs to the MM5Z series of miniature Zener regulators, engineered specifically for space-constrained portable electronics requiring reliable voltage reference and transient suppression in ultra-thin form factors.
FAQ
What is the nominal Zener voltage and tolerance of the MM5Z6V8T1?
The MM5Z6V8T1 has a nominal Zener voltage of 6.8 V with a guaranteed range of 6.4 V to 7.2 V at IZT = 5 mA. This ±0.4 V tolerance reflects the device's specification under standard test conditions and supports precision voltage reference use cases where tight regulation is required without active compensation.
Can the MM5Z6V8T1 be used in place of a 6.8 V Zener diode with different package types?
The MM5Z6V8T1 is not a drop-in replacement for Zeners in SOD-323 or SOD-123 packages due to its unique SOD−523 footprint (1.20 mm × 0.80 mm). While electrical parameters align closely with other 6.8 V Zeners, PCB layout must be redesigned to accommodate its smaller pad geometry and cathode marking position. Always verify mechanical fit and thermal derating before substitution.
What is the maximum reverse leakage current for the MM5Z6V8T1 at 5.0 V?
The MM5Z6V8T1 specifies a maximum reverse leakage current (IR) of 2 µA at VR = 5.0 V and TA = 25°C. This low leakage ensures minimal parasitic current draw in high-impedance bias networks and battery-powered systems where standby power budget is critical.
Does the MM5Z6V8T1 meet industry-standard ESD requirements?
Yes, the MM5Z6V8T1 is rated for >16 kV electrostatic discharge per the Human Body Model (HBM), as verified in the official onsemi datasheet. This level of ESD robustness allows direct integration into exposed interfaces-such as USB, SIM card slots, or button inputs-without requiring additional protection components.
How does the temperature coefficient affect the MM5Z6V8T1's performance in varying ambient conditions?
The MM5Z6V8T1 exhibits a positive temperature coefficient of +1.2 mV/°C, meaning its Zener voltage increases linearly with rising junction temperature. In a typical −40°C to +85°C operating range, this results in a total shift of approximately ±150 mV-critical to account in precision reference designs where long-term stability and calibration accuracy are required.
MM5Z6V8T1 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:
- ±6%
- Power - Max:
- 100 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
MM5Z6V8T1 FAQ
1.How can I place an order for MM5Z6V8T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z6V8T1 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 MM5Z6V8T1 reliable?
The price and inventory of MM5Z6V8T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z6V8T1 is usually 5 days.
3.What payment methods are accepted for MM5Z6V8T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z6V8T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z6V8T1?
MM5Z6V8T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z6V8T1 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 MM5Z6V8T1?
For technical support, including MM5Z6V8T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z6V8T1 requirements.
6.How does Aetrix verify that MM5Z6V8T1 is sourced from the original manufacturer or authorized distributors?
All MM5Z6V8T1 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 MM5Z6V8T1 meets industry standards.
7.What is the process for return or replacement of MM5Z6V8T1?
All MM5Z6V8T1 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z6V8T1, 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 MM5Z6V8T1 part is unused and in its original packaging.
Return procedure for MM5Z6V8T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z6V8T1 Tags
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