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onsemi MM5Z2V4ST1G
- Part No.:
- MM5Z2V4ST1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z2V4ST1G.pdf
- Description:
- DIODE ZENER 2.53V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:5,850
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Product details
Overview
MM5Z2V4ST1G from onsemi is a 2.4 V ±4.2% Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation, 1000 Ω maximum Zener impedance at 1 mA, and −3.5 mV/°C temperature coefficient - used for precision voltage reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the MM5Z2V4ST1G datasheet, pinout, applications, or equivalent options, key selection factors include its tight 2.43–2.63 V Zener tolerance at 5 mA, 16 kV HBM ESD rating, SOD-523 footprint compatibility, and automotive-grade AEC-Q101 qualification via SZ-prefix variants.
Technical Context
This Zener regulator operates in reverse breakdown to clamp voltage with stable regulation across temperature. Its 2.4 V nominal Zener voltage is specified at 5 mA test current (IZT), with 1000 Ω dynamic impedance at 1 mA (IZK) and 100 Ω at IZT - enabling low-noise, predictable clamping in low-power bias networks.
The device features a negative temperature coefficient of −3.5 mV/°C, ensuring predictable drift behavior in thermal environments. It is Pb-free, RoHS-compliant, and qualified to MSL 1 with 260 °C reflow tolerance - supporting high-reliability automated assembly in consumer and automotive PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.43 V min to 2.63 V max at IZT = 5 mA - defines precise clamping window for 2.4 V rail stabilization |
| Power Rating (PD) | 500 mW at TA = 25 °C - supports continuous regulation in compact layouts without forced cooling |
| Zener Impedance (ZZT) | 100 Ω max at IZT = 5 mA - ensures minimal output voltage variation under load transients |
| ESD Rating | Class 3 (>16 kV HBM) - protects downstream circuitry from human-handling electrostatic discharge |
| Package | SOD-523 (1.20 × 0.80 × 0.70 mm) - enables high-density placement on mobile and wearable PCBs |
| Temp Coefficient | −3.5 mV/°C at IZT = 5 mA - allows accurate drift compensation in temperature-varying applications |
Pinout & Package
SOD-523 surface-mount package with cathode marked by polarity band (Pin 1) and anode (Pin 2); body dimensions 1.20 mm × 0.80 mm × 0.70 mm; low-profile design optimized for thin portable assemblies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased Zener terminal | Connected to regulated voltage node; carries reverse current during clamping |
| 2 (Anode) | Reference/ground terminal | Tied to system ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener tolerance | ±4.2% (2.43–2.63 V) at 5 mA - reduces calibration overhead in precision analog circuits |
| Low-profile SOD-523 | 0.7 mm height - fits beneath stacked components and under connectors in ultra-thin devices |
| High ESD immunity | 16 kV HBM - eliminates need for external ESD protection in handheld interface lines |
| AEC-Q101 capability | Qualified via SZMM5Z2V4ST1G variant - supports automotive infotainment and body control modules |
Applications
| Smartphone Power Rail Protection | Wearable Sensor Biasing |
|---|---|
Use Scenario: Clamping 2.5 V LDO output against transient spikes in LTE modem power domains. IC Role / Device Role / Timing Role: Zener voltage regulator providing overvoltage protection and reference stability. Use Value: Prevents damage to sensitive RF ICs during hot-swap or load-dump events using sub-1 mm² footprint. | Use Scenario: Generating stable 2.4 V bias for MEMS accelerometer analog front-end in fitness trackers. IC Role / Device Role / Timing Role: Precision shunt reference establishing fixed operating point for sensor signal chain. Use Value: Maintains <±1% reference accuracy across −20°C to +70°C due to tight VZ tolerance and known TC. |
| Automotive Body Control Module | USB-C Port VBUS Monitoring |
Use Scenario: Regulating 2.4 V supply for LIN transceiver logic in door module ECUs. IC Role / Device Role / Timing Role: Zener clamp ensuring clean logic-level reference despite battery voltage fluctuations. Use Value: Enables AEC-Q101-compliant operation when paired with SZMM5Z2V4ST1G variant and validated layout. | Use Scenario: Detecting VBUS presence and limiting fault voltage on USB-C CC line monitoring circuits. IC Role / Device Role / Timing Role: Low-capacitance (450 pF) Zener protecting ADC input from >3 V excursions. Use Value: Delivers fast response with minimal signal distortion due to low ZZK and negligible forward voltage shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V4 | 2.4 V ±5%, SOD-523, 350 mW rating, 150 Ω ZZT - lower power and looser tolerance | Not AEC-Q101 qualified; limited to commercial-grade portable designs | Select when cost sensitivity outweighs precision and automotive compliance requirements |
| MMSZ4678T1G | 2.4 V ±5%, SOD-123, 500 mW, 100 Ω ZZT - same power but larger 2.9 × 1.3 mm package | Requires PCB area increase; unsuitable for ultra-dense layouts where SOD-523 is mandatory | Choose only if existing SOD-123 footprint reuse is prioritized over miniaturization |
Compared with BZX584C2V4 and MMSZ4678T1G, MM5Z2V4ST1G delivers tighter voltage tolerance, higher ESD robustness, and smaller footprint - making it optimal for next-gen wearables and automotive edge nodes where space, precision, and reliability are co-constrained.
Availability
MM5Z2V4ST1G is available at Aetrix Electronics and suitable for smartphone power rail protection, wearable sensor biasing, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MM5Z2V4ST1G 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 MM5ZxxxST1G series was designed specifically for high-density, low-power voltage regulation in portable and automotive electronics - emphasizing miniature packaging, tight tolerances, and robust ESD performance.
FAQ
What is the Zener voltage tolerance of MM5Z2V4ST1G at 5 mA test current?
The MM5Z2V4ST1G has a Zener voltage range of 2.43 V to 2.63 V at IZT = 5 mA, corresponding to a ±4.2% tolerance around the nominal 2.4 V rating. This tight tolerance is confirmed in the Electrical Characteristics table of the onsemi datasheet (Rev. 15, page 2). The MM5Z2V4ST1G achieves this specification without external trimming, supporting factory-calibrated analog circuits.
Is MM5Z2V4ST1G suitable for automotive applications?
MM5Z2V4ST1G itself is not AEC-Q101 qualified, but its automotive-grade counterpart SZMM5Z2V4ST1G is fully qualified and PPAP-capable. For non-automotive use, MM5Z2V4ST1G provides identical electrical specs and SOD-523 packaging. Designers targeting automotive systems must specify the SZ prefix version to ensure compliance - the MM5Z2V4ST1G remains ideal for commercial portable electronics.
What is the maximum Zener impedance of MM5Z2V4ST1G and at what condition is it measured?
The MM5Z2V4ST1G has a maximum Zener impedance (ZZK) of 1000 Ω measured at IZK = 1.0 mA, and a lower maximum ZZT of 100 Ω at the primary test current IZT = 5 mA. These values define its small-signal AC resistance during regulation - critical for minimizing output ripple in reference and protection circuits. Both parameters are explicitly listed in the datasheet's Electrical Characteristics table.
Does MM5Z2V4ST1G have a specified capacitance value, and how does it affect high-frequency performance?
Yes, MM5Z2V4ST1G has a maximum capacitance of 450 pF at VR = 0 V and f = 1 MHz. This relatively low junction capacitance minimizes loading effects on high-speed signal lines and preserves bandwidth in RF detector or fast transient clamp applications. The value is measured under zero-bias conditions and remains stable across its operating temperature range, as verified in the onsemi datasheet.
What is the thermal derating behavior of MM5Z2V4ST1G above 25 °C ambient?
MM5Z2V4ST1G derates linearly at 4.0 mW/°C above TA = 25 °C, with a thermal resistance RJA of 250 °C/W on FR-4 board (1 cm² copper pad). At 75 °C ambient, its usable power drops to 300 mW. This derating curve is plotted in Figure 2 of the datasheet and must be applied in thermally constrained enclosures - especially relevant in sealed wearable devices where airflow is absent.
MM5Z2V4ST1G 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):
- 2.53 V
- Tolerance:
- ±4%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 120 µA @ 1 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
MM5Z2V4ST1G FAQ
1.How can I place an order for MM5Z2V4ST1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z2V4ST1G 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 MM5Z2V4ST1G reliable?
The price and inventory of MM5Z2V4ST1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z2V4ST1G is usually 5 days.
3.What payment methods are accepted for MM5Z2V4ST1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z2V4ST1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z2V4ST1G?
MM5Z2V4ST1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z2V4ST1G 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 MM5Z2V4ST1G?
For technical support, including MM5Z2V4ST1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z2V4ST1G requirements.
6.How does Aetrix verify that MM5Z2V4ST1G is sourced from the original manufacturer or authorized distributors?
All MM5Z2V4ST1G 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 MM5Z2V4ST1G meets industry standards.
7.What is the process for return or replacement of MM5Z2V4ST1G?
All MM5Z2V4ST1G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z2V4ST1G, 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 MM5Z2V4ST1G part is unused and in its original packaging.
Return procedure for MM5Z2V4ST1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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