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onsemi MM5Z30V
- Part No.:
- MM5Z30V
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523F
- Datasheet:
-
MM5Z30V.pdf
- Description:
- DIODE ZENER 30V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:135,897
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Product details
Overview
MM5Z30V from Fairchild Semiconductor is a surface-mount Zener diode with nominal zener voltage 30 V (min 28 V, max 32 V) at test current 2 mA, dynamic impedance 80 Ω at IZT, power dissipation 200 mW, and operating temperature range −55 °C to +150 °C. It provides precision voltage regulation in compact power management circuits for industrial sensors and automotive ECUs.
For engineers reviewing the MM5Z30V datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance, low leakage current (0.05 μA at 21.0 V), SOD-523F package height under 0.70 mm, thermal resistance of 500 °C/W, and RoHS-compliant matte tin finish.
Technical Context
The MM5Z30V operates as a two-terminal voltage reference device, conducting in reverse breakdown when cathode-to-anode voltage exceeds its specified zener voltage. Its electrical behavior is defined by test conditions: VZ measured under 10 ms pulse, ZZT derived from 60-Hz AC superimposed on DC bias, and leakage current (IR) specified at VR = 21.0 V.
Designed for stable regulation under low-current conditions, it features tight VZ tolerance (±6.7% at 30 V), low thermal resistance (500 °C/W), and moisture sensitivity level 1 - enabling reflow compatibility without dry-pack requirements. The SOD-523F package supports high-density PCB layouts in space-constrained applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ @ IZT | 28 V (min) to 32 V (max) at 2 mA - defines usable regulation window for feedback loops |
| ZZT @ IZT | 80 Ω - limits output voltage variation under load transients |
| PD | 200 mW - sets maximum continuous power handling on FR-4 PCB |
| IR @ VR | 0.05 μA at 21.0 V - ensures minimal quiescent current in standby mode |
| TOPR | −55 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| RθJA | 500 °C/W - determines junction temperature rise under 200 mW dissipation |
| Package | SOD-523F - 0.70 mm height, JEITA SC79 footprint, 2-lead surface mount |
Pinout & Package
SOD-523F is a 2-lead surface-mount plastic package with cathode indicated by a band; leads are coplanar, matte tin-plated, and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Band Side) | Cathode | Connected to regulated output node; reverse-biased terminal during regulation |
| 2 (Opposite Band) | Anode | Connected to ground or lower-potential rail; completes conduction path in breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Zener voltage range | 30 V nominal with ±6.7% tolerance - enables accurate 3.3 V/5 V supply rail clamping |
| Ultra-low profile | 0.70 mm max height - fits beneath low-clearance shields and connectors |
| Moisture Sensitivity Level | MSL 1 - allows unlimited floor life and standard reflow without baking |
| RoHS compliance | Lead-free matte tin finish - meets global environmental directives without solderability trade-offs |
| Green mold compound | Halogen-free epoxy - reduces toxic gas emission during board assembly and end-of-life processing |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Stabilizing reference voltage for analog front-end amplifiers in pressure/temperature sensors. IC Role / Device Role / Timing Role: Zener diode providing 30 V clamp and precision bias point for op-amp input stages. Use Value: Low 0.05 μA leakage at 21.0 V minimizes sensor offset drift; SOD-523F footprint saves space on multi-sensor PCBs. | Use Scenario: Overvoltage protection for LIN bus transceiver power rails in door modules. IC Role / Device Role / Timing Role: Reverse-biased voltage clamp limiting supply spikes to safe levels during load dump events. Use Value: 150 °C max operating temperature ensures reliability in hot under-dash locations; 200 mW rating handles transient energy without failure. |
| Portable Medical Diagnostic Device | Smart Energy Meter Power Supply |
Use Scenario: Voltage reference for ADC biasing in handheld ECG signal acquisition units. IC Role / Device Role / Timing Role: Precision 30 V zener establishing stable reference for 16-bit SAR ADC conversion. Use Value: Tight VZ tolerance (±6.7%) maintains measurement accuracy across temperature; MSL 1 simplifies manufacturing logistics. | Use Scenario: Secondary-side overvoltage protection in isolated flyback auxiliary supplies. IC Role / Device Role / Timing Role: Clamping diode absorbing leakage inductance energy during MOSFET turn-off. Use Value: 80 Ω dynamic impedance ensures predictable clamping voltage; green mold compound complies with utility-grade environmental specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C30 | 30 V nominal, 300 mW power rating, SOD-323 package (1.3 mm height) | Higher power handling but larger footprint; less suitable for ultra-thin designs | Select when higher surge energy absorption is required and board height > 0.7 mm is acceptable |
| MMSZ5257B | 30 V nominal, 500 mW power rating, SOD-123 package (1.6 mm height) | Greater thermal margin but incompatible with fine-pitch SOD-523F land patterns | Choose for legacy designs using SOD-123 footprints or where derating for long-term reliability is critical |
Compared with BZX584C30 and MMSZ5257B, the MM5Z30V offers the lowest profile (0.70 mm) and smallest footprint among 30 V Zeners, making it optimal for space-constrained portable and automotive modules - though its 200 mW rating requires careful thermal design in sustained high-power scenarios.
Availability
MM5Z30V is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control modules, and portable medical diagnostic devices requiring stable component supply and full traceability.
Supply support for MM5Z30V 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
Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power management, analog, and discrete components before its acquisition by ON Semiconductor in 2016.
The MM5Z30V belongs to the MM5Z series of miniature Zener diodes designed specifically for high-density, low-profile voltage regulation and protection in consumer, industrial, and automotive electronics.
FAQ
What is the zener voltage tolerance of MM5Z30V?
The MM5Z30V has a zener voltage range of 28 V (minimum) to 32 V (maximum) at 2 mA test current, corresponding to ±6.7% tolerance around the nominal 30 V rating. This tolerance is verified per the Fairchild MM5Z2V4–MM5Z75V datasheet Rev. 1.5, and applies under pulse test conditions (10 ms). The MM5Z30V's tight VZ spread supports reliable voltage clamping in feedback networks where precision matters.
Can MM5Z30V be used in automotive under-hood applications?
Yes, the MM5Z30V is rated for an operating temperature range of −55 °C to +150 °C and features a green, halogen-free mold compound compliant with automotive environmental standards. Its SOD-523F package withstands thermal cycling typical of engine bay environments, and the 0.05 μA leakage at 21.0 V ensures low standby current in always-on BCM circuits. The MM5Z30V meets these requirements without derating.
What is the thermal resistance of MM5Z30V, and how does it affect layout?
The MM5Z30V has a junction-to-ambient thermal resistance (RθJA) of 500 °C/W when mounted on a minimum FR-4 PCB land pad. At its 200 mW power rating, this results in up to 100 °C junction-to-ambient rise - requiring careful copper area allocation near the SOD-523F pads. The MM5Z30V's thermal performance is optimized for standard reflow, but thermal relief must be avoided to maintain heat transfer.
Is MM5Z30V RoHS compliant and lead-free?
Yes, the MM5Z30V uses a matte tin (Sn) lead finish and is fully RoHS compliant per EU Directive 2011/65/EU. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE. The "Pb Free Version" designation in the Fairchild datasheet confirms compliance, and the green mold compound is halogen-free - satisfying both environmental and safety requirements for global electronics manufacturing.
How does the SOD-523F package of MM5Z30V compare to SOD-323 or SOD-123?
The MM5Z30V's SOD-523F package measures 1.3 mm × 0.85 mm with a maximum height of 0.70 mm - significantly smaller and lower than SOD-323 (1.7 mm × 1.25 mm, 1.3 mm tall) and SOD-123 (3.7 mm × 1.6 mm, 1.6 mm tall). This makes the MM5Z30V ideal for ultra-thin wearables and densely populated automotive PCBs where vertical clearance is constrained. The MM5Z30V's JEITA SC79 footprint also enables finer pitch routing.
MM5Z30V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523F
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±7%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
MM5Z30V FAQ
1.How can I place an order for MM5Z30V through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z30V 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 MM5Z30V reliable?
The price and inventory of MM5Z30V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z30V is usually 5 days.
3.What payment methods are accepted for MM5Z30V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z30V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z30V?
MM5Z30V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z30V 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 MM5Z30V?
For technical support, including MM5Z30V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z30V requirements.
6.How does Aetrix verify that MM5Z30V is sourced from the original manufacturer or authorized distributors?
All MM5Z30V 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 MM5Z30V meets industry standards.
7.What is the process for return or replacement of MM5Z30V?
All MM5Z30V units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z30V, 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 MM5Z30V part is unused and in its original packaging.
Return procedure for MM5Z30V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z30V Tags
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