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onsemi MM5Z24VT1G
- Part No.:
- MM5Z24VT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z24VT1G.pdf
- Description:
- DIODE ZENER 24V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:9,115
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Product details
Overview
MM5Z24VT1G from onsemi is a 24.2 V nominal Zener voltage regulator diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with ±5% tolerance (22.8–25.6 V), 70 Ω max Zener impedance at 5 mA test current, and 0.05 μA reverse leakage at 18.4 V. It provides precision voltage clamping in space-constrained portable power rails.
For engineers reviewing the MM5Z24VT1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, ESD robustness (Class 3, >16 kV HBM), SOD-523 mechanical dimensions, and direct alternatives for voltage reference and overvoltage protection design.
Technical Context
The MM5Z24VT1G operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals when reverse-biased above its Zener breakdown threshold. Its 24.2 V nominal VZ is specified at IZT = 5 mA, with temperature coefficient of +16.8 mV/°C and maximum capacitance of 80 pF at 0 V and 1 MHz.
Thermal performance is defined by RJA = 250 °C/W on FR-4 board (1 cm² pad), enabling 500 mW dissipation at 25 °C ambient, derating linearly at 4.0 mW/°C above that. The device meets AEC-Q101 requirements when ordered as SZMM5Z24VT1G and is Pb-free/RoHS compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24.2 V nominal, 22.8–25.6 V min–max at IZT = 5 mA - defines clamping threshold for overvoltage protection circuits |
| Power Dissipation (PD) | 500 mW at TA = 25 °C - sets maximum continuous energy handling on standard FR-4 PCB |
| Zener Impedance (ZZT) | 70 Ω max at IZT = 5 mA - determines regulation stiffness under dynamic load transients |
| Reverse Leakage (IR) | 0.05 μA max at VR = 18.4 V - ensures minimal quiescent current in standby mode |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - supports robust handling in handheld assembly lines |
| Package | SOD-523 (1.20 × 0.80 × 0.60 mm) - enables placement in high-density layouts where board area < 1.0 mm² is available |
| Temperature Coefficient | +16.8 mV/°C - quantifies VZ drift over operating range; critical for temperature-stable references |
Pinout & Package
SOD-523 surface-mount package: ultra-compact 1.20 mm × 0.80 mm body with 0.60 mm height; cathode marked by polarity band; void-free thermosetting plastic case rated UL 94 V-0; matte tin lead finish; MSL 1; qualified to 260 °C reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage rail; reverse-bias terminal where Zener breakdown occurs |
| 2 (Non-banded End) | Anode | Connected to system ground or lower-potential node; completes shunt path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Standard tolerance Zener series | ±5% VZ tolerance (22.8–25.6 V) - eliminates need for post-production trimming in cost-sensitive consumer designs |
| High ESD immunity | Class 3 HBM (>16 kV) - reduces field failure risk in unshielded portable electronics without external TVS |
| Pb-Free and RoHS compliant | 100% matte Sn lead finish - satisfies global environmental compliance without solderability trade-offs |
| Low-profile SOD-523 footprint | 0.60 mm max height - enables stacking under shields or integration into thin-profile battery management modules |
| Stable temperature coefficient | +16.8 mV/°C - enables predictable VZ shift compensation in automotive cabin temperature ranges (−40 to +105 °C) |
Applications
| Smartphone Power Rail Protection | USB-C Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Clamps transient surges on 24 V auxiliary power rail in dual-battery smartphone architectures during hot-swap events. IC Role / Device Role / Timing Role: Shunt Zener regulator providing passive overvoltage protection upstream of PMIC input. Use Value: Limits peak voltage to ≤25.6 V with <0.05 μA leakage at 18.4 V, preserving PMIC reliability without active control overhead. |
Use Scenario: Suppresses 30 V+ ESD or inductive kickback on USB-C CC/VCONN lines in portable docking stations. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed directly at connector interface. Use Value: Activates within nanoseconds at 22.8 V, leveraging 80 pF capacitance and Class 3 ESD rating to absorb >16 kV HBM strikes. |
| Industrial Sensor Signal Conditioning | Automotive Body Control Module Reference |
|
Use Scenario: Stabilizes 24 V supply to analog front-end of MEMS pressure sensor in HVAC control units. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC biasing and signal scaling. Use Value: Delivers 24.2 V ±5% with +16.8 mV/°C TC, enabling <±1% total error over −25 to +85 °C operating range. |
Use Scenario: Provides stable 24 V reference for microcontroller reset supervisor circuit in BCMs powered from vehicle battery (12/24 V systems). IC Role / Device Role / Timing Role: Zener-based reset threshold detector with temperature-compensated trip point. Use Value: Maintains 22.8–25.6 V window across −40 to +125 °C junction range, meeting AEC-Q101 requirements when ordered as SZ variant. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C24LT1G | Same 24 V nominal VZ, but ±2% tolerance (23.5–24.5 V); 300 mW PD; SOD-523 package; 55 Ω ZZT | Tighter tolerance suits precision reference use; lower power rating limits surge energy absorption | Select when tighter VZ accuracy outweighs need for 500 mW clamping capability |
| MM3Z24VT1G | Same 24.2 V nominal VZ, ±5% tolerance, but SOD-323 package (1.7 × 1.3 × 0.9 mm); 300 mW PD; 70 Ω ZZT | Larger footprint eases hand-soldering; lower power rating reduces thermal margin on dense boards | Select when manual assembly or higher thermal mass is preferred over minimal area usage |
Compared with BZX584C24LT1G and MM3Z24VT1G, the MM5Z24VT1G uniquely balances 500 mW power handling, ±5% tolerance, and smallest SOD-523 footprint-making it optimal for automated high-density production where both clamping robustness and board space are constrained.
Availability
MM5Z24VT1G is available at Aetrix Electronics and suitable for smartphone power rail protection, USB-C port overvoltage clamp, and industrial sensor signal conditioning requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for MM5Z24VT1G 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 MM5ZxxxT1G series was developed specifically for compact, high-reliability voltage regulation in portable and space-constrained electronics-emphasizing low profile, high ESD immunity, and tight thermal performance predictability.
FAQ
What is the Zener voltage tolerance of MM5Z24VT1G?
The MM5Z24VT1G has a standard tolerance of ±5%, with a specified Zener voltage range of 22.8 V to 25.6 V at IZT = 5 mA and TA = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the onsemi datasheet (Rev. 19, April 2025). The MM5Z24VT1G does not offer tighter tolerance variants in the T1G suffix configuration.
What is the maximum power dissipation for MM5Z24VT1G at 70 °C ambient?
At 70 °C ambient, the MM5Z24VT1G dissipates a maximum of 320 mW. This is calculated using the 4.0 mW/°C derating factor from the 500 mW rating at 25 °C: 500 mW − (70 − 25) × 4.0 mW = 320 mW. Derating follows the curve in Figure 1 of the onsemi datasheet and assumes mounting on an FR-4 board with a 1 cm² copper pad.
Is MM5Z24VT1G suitable for automotive applications?
The MM5Z24VT1G itself is not AEC-Q101 qualified; however, the functionally identical SZMM5Z24VT1G variant is fully AEC-Q101 qualified and PPAP capable. Both share identical electrical specs and SOD-523 packaging, but only the SZ-prefix version meets automotive reliability and change-control requirements. For automotive BOMs, specify SZMM5Z24VT1G-not MM5Z24VT1G.
What is the reverse leakage current specification for MM5Z24VT1G?
The MM5Z24VT1G exhibits a maximum reverse leakage current (IR) of 0.05 μA at VR = 18.4 V and TA = 25 °C, as stated in the Electrical Characteristics table. This ultra-low leakage supports energy-sensitive applications such as battery-backed sensors and always-on monitoring circuits where standby current must remain below 100 nA.
Does MM5Z24VT1G have a defined forward voltage specification?
Yes-the MM5Z24VT1G has a maximum forward voltage (VF) of 0.9 V at IF = 10 mA, per the datasheet's "ELECTRICAL CHARACTERISTICS" section. This parameter applies when the device is forward-biased (anode positive relative to cathode) and is relevant for polarity protection or ESD diode configurations where bidirectional conduction may occur.
MM5Z24VT1G 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):
- 24 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.8 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
MM5Z24VT1G FAQ
1.How can I place an order for MM5Z24VT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z24VT1G 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 MM5Z24VT1G reliable?
The price and inventory of MM5Z24VT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z24VT1G is usually 5 days.
3.What payment methods are accepted for MM5Z24VT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z24VT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z24VT1G?
MM5Z24VT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z24VT1G 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 MM5Z24VT1G?
For technical support, including MM5Z24VT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z24VT1G requirements.
6.How does Aetrix verify that MM5Z24VT1G is sourced from the original manufacturer or authorized distributors?
All MM5Z24VT1G 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 MM5Z24VT1G meets industry standards.
7.What is the process for return or replacement of MM5Z24VT1G?
All MM5Z24VT1G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z24VT1G, 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 MM5Z24VT1G part is unused and in its original packaging.
Return procedure for MM5Z24VT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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