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onsemi MM5Z4V7T1
- Part No.:
- MM5Z4V7T1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z4V7T1.pdf
- Description:
- DIODE ZENER 4.7V 100MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,719
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Product details
Overview
MM5Z4V7T1 from onsemi is a 4.7 V ±5% Zener diode in SOD−523 package, rated for 100 mW steady-state power dissipation at 25°C, with 80 Ω maximum Zener impedance at 5 mA test current and 3 µA reverse leakage at 2.0 V reverse voltage. It provides precision voltage regulation in space-constrained portable electronics such as smartphone power rails and USB interface protection circuits.
For engineers reviewing the MM5Z4V7T1 datasheet, pinout, applications, or equivalent options, key selection criteria include its 4.4–5.0 V nominal Zener range, low 0.7 mm body height, Class 3 ESD rating (>16 kV HBM), and compatibility with reflow profiles up to 260°C per MSL 1 requirements.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp voltage across sensitive circuit nodes. Its thermal coefficient of −3.5 mV/°C ensures stable regulation over temperature, and its 260 pF capacitance at 0 V enables use in low-frequency transient suppression without signal distortion.
The SOD−523 package supports high-density PCB layouts with 1.20 mm × 0.80 mm footprint and 0.7 mm profile. The 100% matte tin lead finish ensures solderability and RoHS compliance, while void-free thermosetting epoxy meets UL 94 V−0 flammability standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.4 V min / 4.7 V nom / 5.0 V max @ IZT = 5 mA - defines clamping threshold for overvoltage protection |
| Power Dissipation (PD) | 100 mW @ TA = 25°C - limits continuous energy handling in compact layouts |
| Zener Impedance (ZZT) | 80 Ω max @ IZT = 5 mA - determines regulation accuracy under load variation |
| Reverse Leakage (IR) | 3 µA max @ VR = 2.0 V - ensures minimal standby current in battery-powered systems |
| Capacitance (C) | 260 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - protects against electrostatic discharge during handling and assembly |
| Package Dimensions | 1.20 mm × 0.80 mm × 0.70 mm - enables placement in ultra-thin mobile PCBs with tight spacing |
Pinout & Package
SOD−523 surface-mount package with cathode marked by polarity band; body dimensions 1.20 mm × 0.80 mm × 0.70 mm; 100% matte tin lead finish; qualified for 260°C reflow per MSL 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased Zener terminal | Connected to regulated node; conducts when voltage exceeds VZ |
| 2 (Anode) | Reference ground connection | Tied to system ground or lower-potential rail to complete Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD−523 package | 0.7 mm height enables stacking under shields and fit in <1.0 mm board gaps |
| Stable Zener voltage tolerance | ±5% over 4.4–5.0 V range ensures predictable clamping in 3.3 V and 5 V supply domains |
| High ESD robustness | >16 kV HBM rating eliminates need for external ESD protection in handheld interfaces |
| Thermal stability | −3.5 mV/°C tempco maintains regulation accuracy across −65°C to +150°C junction range |
| Reflow-compatible construction | MSL 1 qualification and 260°C peak reflow tolerance support automated SMT assembly |
Applications
| Smartphone Power Rail Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Protecting 3.3 V LDO outputs from transient spikes induced by RF switching or battery insertion. IC Role / Device Role / Timing Role: Zener shunt regulator clamping voltage to 4.7 V before downstream logic ICs. Use Value: Prevents latch-up in baseband processors by limiting rail overshoot to within 10% of absolute maximum ratings. |
Use Scenario: Suppressing ESD events on D+ and D− lines during hot-plug insertion of USB peripherals. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor referenced to common-mode voltage. Use Value: Maintains signal integrity below 480 Mbps by limiting line-to-ground voltage swing to ≤5.0 V with <260 pF loading. |
| Wearable Sensor Node Reference | Industrial IoT Edge Controller Input Protection |
Use Scenario: Providing stable 4.7 V reference for ADC biasing in compact fitness tracker analog front-ends. IC Role / Device Role / Timing Role: Precision voltage reference source for sensor excitation and signal conditioning. Use Value: Enables 12-bit effective resolution by holding reference drift to <0.5% over −20°C to +70°C operating range. |
Use Scenario: Guarding microcontroller GPIO inputs against 24 V field wiring transients in factory automation terminals. IC Role / Device Role / Timing Role: Primary overvoltage clamp ahead of series current-limiting resistor. Use Value: Absorbs 100 mW surges without degradation, extending input stage lifetime beyond 100,000 connect/disconnect cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C4V7 | Same 4.7 V nominal Zener, but SOD-323 package (1.7 mm × 1.3 mm); 200 mW power rating | Larger footprint allows higher surge energy handling; less suitable for sub-1.0 mm height constraints | Select when higher pulse power capability is required and board area permits larger package |
| MMSZ4700T1G | 4.7 V Zener in SOD-123 package (3.7 mm × 1.6 mm); 500 mW rating; 15 Ω ZZT | Higher power and lower impedance suit industrial control I/O protection, not portable miniaturization | Choose for ruggedized designs needing >10× surge margin and board-level thermal mass |
Compared with BZX584-C4V7 and MMSZ4700T1G, the MM5Z4V7T1 delivers optimal trade-off between ultra-compact size, adequate 100 mW regulation, and proven reliability in consumer-grade portable assemblies - making it the preferred choice where volume and height are primary constraints.
Availability
MM5Z4V7T1 is available at Aetrix Electronics and suitable for smartphone power rail protection, USB 2.0 data line clamping, and wearable sensor node reference applications requiring stable component supply and consistent parametric performance across production lots.
Supply support for MM5Z4V7T1 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 edge applications.
The MM5Z series was designed specifically for space-constrained voltage regulation in portable electronics, emphasizing ultra-small packaging, high ESD immunity, and stable Zener characteristics across temperature and life cycle.
FAQ
What is the Zener voltage tolerance of MM5Z4V7T1?
The MM5Z4V7T1 has a specified Zener voltage range of 4.4 V minimum to 5.0 V maximum at 5 mA test current, corresponding to a ±5% tolerance around the nominal 4.7 V value. This tolerance is guaranteed over the full operating temperature range and remains stable throughout device lifetime under recommended bias conditions.
Can MM5Z4V7T1 be used in place of a 5.0 V Zener diode?
The MM5Z4V7T1 is not a direct substitute for a 5.0 V Zener diode because its nominal voltage is 4.7 V with a maximum of 5.0 V - meaning actual units may regulate below 5.0 V. For strict 5.0 V clamping, MM5Z5V1T1 (4.8–5.4 V) is the appropriate variant in the same SOD−523 package.
What is the maximum reverse leakage current for MM5Z4V7T1?
The MM5Z4V7T1 exhibits a maximum reverse leakage current of 3 µA at 2.0 V reverse voltage and 25°C ambient temperature. At voltages below 2.0 V, leakage drops further - e.g., <0.1 µA at 1.0 V - supporting ultra-low-power sleep modes in battery-operated devices.
Is MM5Z4V7T1 compatible with lead-free reflow soldering processes?
Yes, the MM5Z4V7T1 is fully compatible with lead-free reflow soldering, qualified to 260°C peak temperature per J-STD-020 MSL 1 standards. Its 100% matte tin lead finish ensures reliable wetting and intermetallic formation without voiding or dewetting issues in standard nitrogen or air reflow profiles.
How does the temperature coefficient affect MM5Z4V7T1 performance?
The MM5Z4V7T1 has a temperature coefficient of −3.5 mV/°C, meaning its Zener voltage decreases by approximately 3.5 mV per degree Celsius rise in junction temperature. Over a −40°C to +85°C operating range, this results in a total shift of about ±44 mV - well within typical 3.3 V rail tolerance budgets.
MM5Z4V7T1 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):
- 4.7 V
- Tolerance:
- ±6%
- Power - Max:
- 100 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 2 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
MM5Z4V7T1 FAQ
1.How can I place an order for MM5Z4V7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z4V7T1 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 MM5Z4V7T1 reliable?
The price and inventory of MM5Z4V7T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z4V7T1 is usually 5 days.
3.What payment methods are accepted for MM5Z4V7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z4V7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z4V7T1?
MM5Z4V7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z4V7T1 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 MM5Z4V7T1?
For technical support, including MM5Z4V7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z4V7T1 requirements.
6.How does Aetrix verify that MM5Z4V7T1 is sourced from the original manufacturer or authorized distributors?
All MM5Z4V7T1 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 MM5Z4V7T1 meets industry standards.
7.What is the process for return or replacement of MM5Z4V7T1?
All MM5Z4V7T1 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z4V7T1, 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 MM5Z4V7T1 part is unused and in its original packaging.
Return procedure for MM5Z4V7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z4V7T1 Tags
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MM5Z5V1ST1G
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