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onsemi MM5Z47VT1
- Part No.:
- MM5Z47VT1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z47VT1.pdf
- Description:
- DIODE ZENER 47V 100MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,299
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Product details
Overview
MM5Z47VT1 from onsemi is a 47 V ±3 V Zener diode in SOD−523 package, rated for 100 mW steady-state power dissipation at 25°C, with 170 Ω maximum Zener impedance at 1 mA test current and 0.05 μA reverse leakage at 32.9 V. It provides precision voltage regulation in space-constrained portable electronics such as smartphone power rail clamping and USB interface overvoltage protection.
For engineers reviewing the MM5Z47VT1 datasheet, pinout, applications, or equivalent options, key selection criteria include its 47 V nominal Zener voltage, low 0.7 mm body height, Class 3 ESD rating (>16 kV HBM), 1.20 mm × 0.80 mm footprint, and suitability for high-density PCBs requiring stable reference clamping under transient conditions.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp or regulate voltage across load circuits. Its Zener voltage is specified at 1 mA test current (IZT = 1 mA), with temperature coefficient of +0.2 mV/°C and maximum capacitance of 40 pF at 0 V and 1 MHz.
The SOD−523 package supports reflow soldering up to 260°C and meets MSL 1 requirements, enabling automated assembly without moisture sensitivity concerns. Junction temperature range spans −65°C to +150°C, supporting operation in consumer and industrial ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 44 V to 50 V at IZT = 1 mA - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 100 mW at TA = 25°C - limits continuous energy handling in compact layouts |
| Zener Impedance (ZZT) | 170 Ω max at IZT = 1 mA - determines regulation stiffness under dynamic load transients |
| Reverse Leakage (IR) | 0.05 μA max at VR = 32.9 V - ensures minimal standby current in battery-powered systems |
| Capacitance (C) | 40 pF max at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity |
| ESD Rating | Class 3 (>16 kV HBM) - enables direct integration into handheld device I/O lines without external ESD protection |
| Package | SOD−523 (Case 502) - 1.20 mm × 0.80 mm × 0.7 mm footprint ideal for <1.0 mm pitch routing |
Pinout & Package
SOD−523 surface-mount package with cathode marked by band; 2-terminal construction (cathode and anode), void-free thermosetting plastic case meeting UL 94 V−0, matte tin lead finish, MSL 1 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased during Zener conduction |
| 2 (Unbanded End) | Anode | Connected to ground or lower-potential reference; completes current path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD−523 package | 0.7 mm height enables stacking under shields and placement near BGA packages |
| High ESD robustness | Class 3 HBM (>16 kV) eliminates need for discrete TVS in many USB/SDIO interfaces |
| Precision Zener voltage tolerance | ±3 V (44–50 V) at 1 mA supports accurate 5 V rail overvoltage detection with margin |
| Stable temperature coefficient | +0.2 mV/°C minimizes drift across −40°C to +85°C operating range |
| Reflow-compatible termination | 100% matte Sn finish qualified for peak reflow at 260°C per JEDEC J-STD-020 |
Applications
| USB 2.0 Data Line Protection | Smartphone Battery Charger Input Clamping |
|---|---|
Use Scenario: Protecting D+ and D− lines from ESD events and adapter surge during hot-plug insertion. IC Role / Device Role / Timing Role: Two-terminal shunt regulator clamping transient voltage to ≤50 V while passing DC bias. Use Value: Leverages 40 pF capacitance and Class 3 ESD rating to meet IEC 61000-4-2 Level 4 without added components. |
Use Scenario: Limiting input voltage to PMIC during AC adapter fault or automotive jump-start conditions. IC Role / Device Role / Timing Role: Standby-connected Zener diode absorbing surge energy above 47 V threshold. Use Value: 100 mW rating and 170 Ω ZZT enable reliable clamping of 100–500 ns transients without thermal runaway. |
| IoT Sensor Node Reference Stabilization | Industrial PLC Digital Input Protection |
Use Scenario: Providing stable 47 V reference for analog front-end overvoltage detection in battery-operated sensors. IC Role / Device Role / Timing Role: Precision voltage reference source with <0.05 μA leakage preserving microamp-level sleep current. Use Value: Tight 44–50 V tolerance and +0.2 mV/°C TC ensure consistent trip point across temperature and aging. |
Use Scenario: Protecting 24 V digital input circuitry from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Primary clamping element diverting >47 V transients to common ground before reaching logic ICs. Use Value: SOD−523 footprint allows placement directly at connector entry point, minimizing inductance in surge path. |
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-C47 | 47 V ±5%, 300 mW rating, SOD-323 package (1.7 × 1.3 × 0.9 mm) | Higher power handling but larger footprint and lower ESD rating (Class 2) | Select when higher surge energy absorption is required and board space permits larger package |
| MMSZ47ET1G | 47 V ±5%, 500 mW rating, SOD-123 package (3.7 × 1.6 × 1.1 mm) | Triple power rating and wider operating temperature range (−65°C to +150°C), but 4× larger area | Choose for industrial environments requiring extended thermal margin and mechanical robustness |
Compared with BZX584-C47 and MMSZ47ET1G, the MM5Z47VT1 offers the smallest PCB footprint and highest ESD immunity among 47 V Zeners, making it optimal for ultra-compact consumer designs where layout density and I/O robustness are prioritized over surge energy capacity.
Availability
MM5Z47VT1 is available at Aetrix Electronics and suitable for smartphone ESD protection, USB interface clamping, and IoT sensor reference stabilization requiring stable component supply with tight Zener voltage control and minimal board area consumption.
Supply support for MM5Z47VT1 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 MM5Z series is part of onsemi's precision Zener regulator portfolio designed specifically for space-constrained, high-reliability voltage reference and transient suppression in portable and wireless electronics.
FAQ
What is the Zener voltage tolerance of MM5Z47VT1 at 1 mA test current?
The MM5Z47VT1 has a Zener voltage range of 44 V to 50 V at IZT = 1 mA, corresponding to a nominal 47 V ±3 V tolerance. This specification is measured under pulsed conditions at 25°C ambient and defines the functional clamping window for overvoltage protection circuits using the MM5Z47VT1.
Can MM5Z47VT1 be used in reflow soldering processes?
Yes, the MM5Z47VT1 is qualified for lead-free reflow soldering with a maximum peak temperature of 260°C and meets MSL 1 moisture sensitivity requirements. Its SOD−523 package uses 100% matte tin terminations and void-free epoxy encapsulation, ensuring process compatibility in high-volume SMT assembly lines handling the MM5Z47VT1.
What is the maximum reverse leakage current for MM5Z47VT1?
The MM5Z47VT1 exhibits a maximum reverse leakage current of 0.05 μA at VR = 32.9 V and TA = 25°C. This ultra-low leakage preserves battery life in always-on portable devices and ensures minimal error contribution when the MM5Z47VT1 is used as a precision reference in high-impedance sensing circuits.
How does the temperature coefficient affect MM5Z47VT1 performance?
The MM5Z47VT1 has a temperature coefficient of +0.2 mV/°C, meaning its Zener voltage increases by 0.2 mV per degree Celsius rise in junction temperature. This low drift supports stable clamping across −40°C to +85°C ambient ranges and makes the MM5Z47VT1 suitable for applications where thermal stability is critical, such as in the MM5Z47VT1-based reference design for industrial sensors.
Is MM5Z47VT1 suitable for ESD protection in USB 2.0 interfaces?
Yes, the MM5Z47VT1 is rated Class 3 (>16 kV HBM) and features 40 pF capacitance at 0 V, making it appropriate for ESD protection on USB 2.0 D+ and D− lines. Its fast response and low clamping voltage ensure compliance with IEC 61000-4-2 Level 4 when implemented per layout guidelines for the MM5Z47VT1 in high-speed data paths.
MM5Z47VT1 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):
- 47 V
- Tolerance:
- ±6%
- Power - Max:
- 100 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 32.9 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
MM5Z47VT1 FAQ
1.How can I place an order for MM5Z47VT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z47VT1 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 MM5Z47VT1 reliable?
The price and inventory of MM5Z47VT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z47VT1 is usually 5 days.
3.What payment methods are accepted for MM5Z47VT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z47VT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z47VT1?
MM5Z47VT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z47VT1 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 MM5Z47VT1?
For technical support, including MM5Z47VT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z47VT1 requirements.
6.How does Aetrix verify that MM5Z47VT1 is sourced from the original manufacturer or authorized distributors?
All MM5Z47VT1 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 MM5Z47VT1 meets industry standards.
7.What is the process for return or replacement of MM5Z47VT1?
All MM5Z47VT1 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z47VT1, 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 MM5Z47VT1 part is unused and in its original packaging.
Return procedure for MM5Z47VT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z47VT1 Tags
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