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onsemi MM5Z2V4
- Part No.:
- MM5Z2V4
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523F
- Datasheet:
-
MM5Z2V4.pdf
- Description:
- DIODE ZENER 2.4V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:144,000
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Product details
Overview
MM5Z2V4 from Fairchild Semiconductor is a surface-mount Zener diode with a nominal zener voltage of 2.4 V (min 2.2 V, max 2.6 V) at 5 mA test current, 200 mW power dissipation, and SOD-523F package under 0.70 mm height. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for portable electronics and sensor interfaces.
For engineers reviewing the MM5Z2V4 datasheet, pinout, applications, or equivalent options, key selection criteria include its 2.4 V zener voltage tolerance, 100 Ω dynamic impedance at 5 mA, 1 μA reverse leakage at 1 V, thermal resistance of 500 °C/W, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
The MM5Z2V4 operates as a two-terminal voltage reference device relying on controlled reverse-breakdown conduction. Its zener voltage is specified under 10 ms pulse conditions to minimize self-heating effects, and its impedance (ZZT = 100 Ω max at IZT = 5 mA) reflects small-signal AC resistance near the operating point.
Designed for stable DC regulation in space-constrained applications, it features moisture sensitivity level 1, matte tin lead finish, green mold compound, and cathode identification via band marking - all aligned with JEITA SC79 and SOD-523F mechanical standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.2 V (min) to 2.6 V (max) at 5 mA - defines tight regulation window for 2.4 V reference designs |
| Power Dissipation (PD) | 200 mW - limits continuous DC current to ~83 mA at 2.4 V without derating |
| Zener Impedance (ZZT) | ≤100 Ω at 5 mA - ensures minimal output voltage shift under load transients |
| Reverse Leakage (IR) | ≤50 μA at 1 V - guarantees low quiescent current in standby-bias applications |
| Thermal Resistance (RθJA) | 500 °C/W - requires careful PCB copper area planning for sustained 200 mW operation |
| Operating Temp Range | −55 °C to +150 °C - supports industrial and automotive under-hood environments |
Pinout & Package
Package: SOD-523F - ultra-compact 2-lead surface-mount plastic package, 0.70 mm maximum height, JEITA SC79 compliant, with cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node; reverse-biased during regulation |
| 2 | Cathode | Marked with band; connected to higher-potential node; output reference voltage appears here relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Flat Lead SMD Construction | Enables high-density PCB layouts and compatibility with standard 0402-class pick-and-place equipment |
| Moisture Sensitivity Level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing overhead and floor-life constraints |
| RoHS-Compliant Matte Tin Finish | Ensures reliable solderability and intermetallic formation without lead-based contamination risks |
| Green Mold Compound | Meets halogen-free material requirements for environmental compliance in consumer and industrial end products |
Applications
| Portable Power Management | Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 2.4 V bias to low-power analog sensors in wearables and IoT edge nodes. IC Role / Device Role / Timing Role: Voltage reference source for ADC input scaling and op-amp offset trimming. Use Value: Tight 2.2–2.6 V tolerance and <100 Ω impedance maintain measurement accuracy across temperature and supply variation. | Use Scenario: Clamping microcontroller I/O pins against ESD-induced overvoltage in battery-powered sensor hubs. IC Role / Device Role / Timing Role: Low-capacitance transient voltage suppressor protecting 3.3 V logic rails. Use Value: 1 μA leakage at 1 V ensures negligible standby current draw while clamping up to 2.6 V reliably. |
| Low-Voltage Reference Circuits | LED Current Regulation |
Use Scenario: Generating precision 2.4 V reference for comparator thresholds in energy-harvesting PMUs. IC Role / Device Role / Timing Role: Stable shunt reference enabling accurate undervoltage lockout (UVLO) detection. Use Value: −55 °C to +150 °C operating range supports wide ambient deployment without calibration drift. | Use Scenario: Setting constant current for indicator LEDs in medical handheld devices with single-cell Li-ion supply. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed voltage drop across current-setting resistor. Use Value: 200 mW rating allows ≥80 mA current capability at 2.4 V, sufficient for multi-LED arrays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V4 | Same 2.4 V nominal VZ, but 300 mW PD, SOD-323 package (1.3 mm height), higher ZZT (120 Ω) | Less suitable for ultra-thin assemblies; better for higher-power biasing where board height >0.7 mm is acceptable | Select when thermal margin >200 mW is required and SOD-323 footprint is available |
| MMSZ4678 | 2.4 V VZ, 500 mW PD, SOD-123 package (1.6 mm height), 150 Ω ZZT, higher IR (5 μA @ 1 V) | Higher leakage and larger footprint limit use in ultra-low-power or space-critical designs | Prefer for cost-sensitive, non-portable industrial controls where size and quiescent current are secondary |
Compared with BZX584C2V4 and MMSZ4678, the MM5Z2V4 offers the lowest profile (0.7 mm), lowest leakage (≤1 μA), and tightest VZ tolerance (±0.2 V) - making it optimal for miniaturized, battery-constrained systems requiring stable low-voltage references.
Availability
MM5Z2V4 is available at Aetrix Electronics and suitable for portable power management, sensor signal conditioning, low-voltage reference circuits, and LED current regulation requiring stable component supply and full traceability.
Supply support for MM5Z2V4 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 MM5Z2V4 belongs to Fairchild's MM5Z series of miniature Zener diodes, engineered specifically for high-density, low-profile voltage regulation in portable and battery-operated electronics.
FAQ
What is the zener voltage tolerance of the MM5Z2V4 at 25°C?
The MM5Z2V4 has a zener voltage range of 2.2 V (minimum) to 2.6 V (maximum) at IZT = 5 mA and TA = 25°C, yielding a ±0.2 V absolute tolerance around the nominal 2.4 V rating. This specification is verified per Fairchild's Rev. 1.5 datasheet and applies strictly under pulsed 10 ms test conditions to avoid thermal drift.
Can the MM5Z2V4 be used in place of a 2.5 V Zener diode?
No - the MM5Z2V4 is not a functional substitute for a 2.5 V Zener diode due to its defined 2.2–2.6 V range centered at 2.4 V. Using it where 2.5 V regulation is required may cause circuit malfunction, especially in precision reference or threshold-detection applications. The MM5Z2V7 (2.5–2.9 V) is the next closest variant in the same family.
What is the maximum steady-state current the MM5Z2V4 can handle at room temperature?
At TA = 25°C, the MM5Z2V4 supports a maximum continuous DC current of approximately 83 mA (200 mW ÷ 2.4 V), assuming no PCB thermal enhancement. Derating is required above 25°C per its 500 °C/W RθJA; at 85°C ambient, usable current drops to ~33 mA to stay within junction temperature limits.
Does the MM5Z2V4 have AEC-Q200 qualification for automotive use?
No - the MM5Z2V4 is not AEC-Q200 qualified. While its operating temperature range (−55 °C to +150 °C) overlaps with automotive requirements, Fairchild's official documentation does not list AEC-Q200 stress testing or qualification for this part. For automotive applications, consider AEC-Q200-certified alternatives like the BZX84-C2V4Q series.
How is cathode polarity identified on the MM5Z2V4 package?
The cathode of the MM5Z2V4 is marked by a visible band on the SOD-523F package body - consistent with JEITA SC79 standard orientation. Pin 2 (cathode) must connect to the higher-potential node during reverse-biased operation; incorrect orientation will result in forward conduction instead of zener regulation.
MM5Z2V4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523F
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±8%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
MM5Z2V4 FAQ
1.How can I place an order for MM5Z2V4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z2V4 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 MM5Z2V4 reliable?
The price and inventory of MM5Z2V4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z2V4 is usually 5 days.
3.What payment methods are accepted for MM5Z2V4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z2V4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z2V4?
MM5Z2V4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z2V4 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 MM5Z2V4?
For technical support, including MM5Z2V4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z2V4 requirements.
6.How does Aetrix verify that MM5Z2V4 is sourced from the original manufacturer or authorized distributors?
All MM5Z2V4 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 MM5Z2V4 meets industry standards.
7.What is the process for return or replacement of MM5Z2V4?
All MM5Z2V4 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z2V4, 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 MM5Z2V4 part is unused and in its original packaging.
Return procedure for MM5Z2V4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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