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onsemi MM5Z47VT1G
- Part No.:
- MM5Z47VT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z47VT1G.pdf
- Description:
- DIODE ZENER 47V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:5,494
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Product details
Overview
MM5Z47VT1G from onsemi is a 47 V ±5% Zener voltage regulator diode in SOD-523 package, rated for 500 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 reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the MM5Z47VT1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, ESD robustness (Class 3, >16 kV HBM), and direct alternatives for voltage regulation in battery-powered systems.
Technical Context
This device operates as a two-terminal, silicon planar Zener diode optimized for stable reverse-bias voltage regulation. Its breakdown voltage is specified at 44–50 V (min–max) with nominal 47 V at IZT = 1 mA, and exhibits a temperature coefficient of +0.0329 mV/°C - indicating positive drift with temperature.
The MM5Z47VT1G features low-profile SOD-523 packaging (1.20 × 0.80 × 0.60 mm), Pb-free matte tin terminations, MSL 1 rating, and 260 °C max reflow compatibility. Its 170 Ω dynamic impedance at IZK = 1 mA and 500 Ω at IZT = 1 mA supports predictable clamping performance under transient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 44–50 V @ IZT = 1 mA; defines precise clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 500 mW @ TA = 25 °C; derates linearly to zero at 150 °C ambient (4.0 mW/°C) |
| Zener Impedance (ZZT) | 170 Ω max @ IZT = 1 mA; determines regulation stiffness and output ripple suppression capability |
| Reverse Leakage (IR) | 0.05 μA max @ VR = 32.9 V; ensures minimal standby current in high-impedance bias networks |
| ESD Rating | Class 3 (>16 kV) per HBM; enables robust handling in manual assembly and end-user environments |
| Capacitance (C) | 40 pF max @ VR = 0 V, f = 1 MHz; limits high-frequency noise coupling in RF-adjacent signal paths |
| Package | SOD-523 (Case 502); 1.20 × 0.80 × 0.60 mm footprint ideal for ultra-dense PCB layouts |
Pinout & Package
SOD-523 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 rail; reverse-biased terminal where Zener breakdown occurs |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential node; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Standard tolerance Zener series | ±5% VZ tolerance enables cost-effective voltage reference without trimming |
| Low-profile SOD-523 package | 0.60 mm height allows stacking under shields or placement near connectors in slim devices |
| High ESD immunity (HBM >16 kV) | Eliminates need for external ESD protection in handheld product front-end interfaces |
| Pb-free and RoHS-compliant construction | Meets global environmental compliance requirements without sacrificing thermal or electrical performance |
| MSL 1 moisture sensitivity rating | Enables unlimited floor life and eliminates bake-out prior to reflow soldering |
Applications
| Smartphone Power Rail Protection | USB-C Port Overvoltage Clamp |
|---|---|
Use Scenario: Protects 5 V USB power delivery lines from transient surges caused by hot-plug events or adapter faults. IC Role / Device Role / Timing Role: Two-terminal shunt regulator placed between VBUS and GND to clamp voltage above 47 V. Use Value: Prevents damage to downstream USB-PD controllers and load switches by limiting peak voltage to ≤50 V. |
Use Scenario: Safeguards USB-C port controller ICs during accidental connection to non-compliant chargers. IC Role / Device Role / Timing Role: Standby Zener clamp activated only during overvoltage transients; no DC loading in normal operation. Use Value: Maintains <0.05 μA leakage at 32.9 V, preserving battery life while delivering fast response to >44 V spikes. |
| IoT Sensor Node Reference | Wearable Battery Monitor Input |
Use Scenario: Provides stable 47 V reference for analog-to-digital conversion of high-voltage supply rails in industrial sensors. IC Role / Device Role / Timing Role: Precision Zener used as voltage reference for ADC input scaling network. Use Value: 170 Ω Zener impedance ensures <10 mV error contribution under 100 μA load variation. |
Use Scenario: Monitors lithium-ion battery pack voltage in multi-cell wearables using resistive divider into MCU ADC. IC Role / Device Role / Timing Role: Clamping diode across divider output to prevent ADC overvoltage during cell imbalance events. Use Value: 40 pF capacitance avoids signal distortion at 1 MHz sampling rates; 500 mW rating handles brief 100 ms surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C47 | Same 47 V nominal Zener voltage, but SOD-323 package (1.7 × 1.3 × 0.9 mm); 350 mW power rating; 220 Ω ZZT | Larger footprint and lower power limit restrict use in ultra-thin designs requiring ≥500 mW surge handling | Select BZX584C47 only when board layout allows larger SOD-323 and thermal margin permits 350 mW operation. |
| MMSZ47ET1G | Identical 47 V rating and SOD-123 package (3.7 × 1.6 × 1.1 mm); 500 mW rating; 170 Ω ZZT; same RoHS/MSL 1 specs | 3× larger footprint increases PCB area use but improves thermal dissipation margin in high-ambient environments | Choose MMSZ47ET1G when mechanical clearance or thermal reliability outweighs miniaturization goals. |
Compared with BZX584C47 and MMSZ47ET1G, the MM5Z47VT1G uniquely balances 47 V regulation, 500 mW power, 170 Ω impedance, and minimal 1.20 × 0.80 mm footprint - making it optimal for next-gen compact battery management and interface protection.
Availability
MM5Z47VT1G is available at Aetrix Electronics and suitable for smartphone power rail protection, USB-C port overvoltage clamp, and IoT sensor node reference requiring stable component supply across high-volume production cycles.
Supply support for MM5Z47VT1G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM5Z47VT1G belongs to the MM5ZxxxT1G Zener regulator series designed specifically for space-constrained, high-reliability voltage reference and transient suppression in portable electronics.
FAQ
What is the Zener voltage tolerance of MM5Z47VT1G?
The MM5Z47VT1G has a standard tolerance of ±5% around its nominal 47 V Zener voltage, meaning the actual breakdown voltage falls between 44 V and 50 V when tested at IZT = 1 mA and TA = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet (Rev. 19, April 2025).
Does MM5Z47VT1G support lead-free reflow soldering?
Yes, MM5Z47VT1G uses 100% matte tin (Sn) lead finish and is qualified for peak reflow temperatures up to 260 °C, meeting IPC/JEDEC J-STD-020 requirements. Its MSL 1 rating means it can be stored indefinitely without baking before soldering - a key advantage for just-in-time manufacturing of the MM5Z47VT1G.
What is the maximum reverse leakage current for MM5Z47VT1G?
The MM5Z47VT1G specifies a maximum reverse leakage current (IR) of 0.05 μA at VR = 32.9 V and TA = 25 °C. This ultra-low leakage ensures minimal parasitic current draw in high-impedance voltage divider or reference circuits where the MM5Z47VT1G is deployed.
Can MM5Z47VT1G be used in automotive applications?
The standard MM5Z47VT1G is not AEC-Q101 qualified; however, the SZMM5Z47VT1G variant (same electrical specs) is automotive-grade, PPAP-capable, and AEC-Q101 qualified. For automotive use, specify SZMM5Z47VT1G - the MM5Z47VT1G itself is intended for commercial portable electronics.
What is the thermal resistance junction-to-ambient for MM5Z47VT1G?
The MM5Z47VT1G has a thermal resistance (RJA) of 250 °C/W when mounted on a FR-4 board with a 1 cm² copper pad. This value directly determines how much the junction temperature rises above ambient per milliwatt of dissipated power - critical for thermal design validation of the MM5Z47VT1G in sealed enclosures.
MM5Z47VT1G 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):
- 47 V
- Tolerance:
- ±6.4%
- Power - Max:
- 500 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
MM5Z47VT1G FAQ
1.How can I place an order for MM5Z47VT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z47VT1G 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 MM5Z47VT1G reliable?
The price and inventory of MM5Z47VT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z47VT1G is usually 5 days.
3.What payment methods are accepted for MM5Z47VT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z47VT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z47VT1G?
MM5Z47VT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z47VT1G 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 MM5Z47VT1G?
For technical support, including MM5Z47VT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z47VT1G requirements.
6.How does Aetrix verify that MM5Z47VT1G is sourced from the original manufacturer or authorized distributors?
All MM5Z47VT1G 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 MM5Z47VT1G meets industry standards.
7.What is the process for return or replacement of MM5Z47VT1G?
All MM5Z47VT1G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z47VT1G, 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 MM5Z47VT1G part is unused and in its original packaging.
Return procedure for MM5Z47VT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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