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onsemi MM3Z7V5C
- Part No.:
- MM3Z7V5C
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
MM3Z7V5C.pdf
- Description:
- DIODE ZENER 7.5V 200MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:13,195
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Product details
Overview
MM3Z7V5C from onsemi is a 7.5 V ±5% Zener diode in SOD−323FL package, rated for 200 mW power dissipation, with 14 Ω zener impedance at 5 mA test current and 0.9 µA reverse leakage at 5 V. It provides precision voltage regulation in low-power analog reference and overvoltage protection circuits.
For engineers reviewing the MM3Z7V5C datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance, dynamic impedance at specified IZT, thermal resistance (595 °C/W), reverse leakage at VR, and SOD−323FL footprint compatibility with high-density PCB layouts.
Technical Context
The MM3Z7V5C operates as a two-terminal voltage reference device, conducting in reverse breakdown to maintain stable 7.5 V across its terminals when biased above VZ with current ≥ IZK (1 mA). Its 14 Ω zener impedance at 5 mA ensures minimal output voltage variation under load changes.
Designed for surface-mount use on standard FR-4 PCBs with minimum land pads, it achieves a junction-to-ambient thermal resistance of 595 °C/W and supports operation from −65 °C to +150 °C storage temperature, with maximum junction temperature limited to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.11 V (min) to 7.86 V (max) at 5 mA - defines regulation band for precision biasing |
| Zener Impedance ZZT | 14 Ω max at 5 mA - determines AC ripple rejection and load regulation sensitivity |
| Power Dissipation PD | 200 mW - sets maximum continuous DC power handling on standard PCB layout |
| Reverse Leakage IR | 0.9 µA max at 5 V - critical for low-current standby circuits and battery-powered references |
| Thermal Resistance RJA | 595 °C/W - requires careful thermal pad design to avoid exceeding 150 °C junction limit |
| Forward Voltage VF | 1.0 V max at 10 mA - enables use as clamping diode in bidirectional protection schemes |
Pinout & Package
SOD−323FL package: ultra-thin, surface-mount plastic case with matte tin finish; dimensions per Case 477AB; cathode marked by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Current entry terminal in forward bias; referenced ground node in reverse-bias regulation | Connected to lower-potential side of regulated circuit; must be routed with low-inductance path for transient response |
| 2 (Cathode) | Current exit terminal in forward bias; regulated voltage output node in reverse bias | Provides stable 7.5 V reference point; requires clean decoupling to suppress impedance-induced noise |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable regulation without post-production trimming in cost-sensitive consumer and industrial designs |
| 200 mW power rating in SOD−323FL | Supports compact, high-density layouts while delivering sufficient headroom for 5–10 mA reference currents |
| 14 Ω dynamic impedance at 5 mA | Minimizes output voltage deviation under varying load conditions typical in sensor biasing and ADC reference chains |
| Pb-free, RoHS-compliant construction | Meets global environmental compliance requirements without derating or process change for lead-free reflow |
Applications
| Portable Sensor Biasing | USB-C Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 7.5 V bias to MEMS pressure sensors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Precision voltage reference source for analog front-end conditioning. Use Value: Low 0.9 µA leakage preserves battery life; tight ±5% tolerance eliminates calibration overhead. |
Use Scenario: Clamping transient surges on USB-C VBUS line during hot-plug events. IC Role / Device Role / Timing Role: Reverse-biased overvoltage protection element. Use Value: Fast response to >7.86 V transients; 200 mW rating handles short-duration energy bursts. |
| Industrial PLC Analog Input | Low-Power MCU Reference |
Use Scenario: Stabilizing input scaling resistors in 4–20 mA loop receiver circuits. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed reference potential. Use Value: 14 Ω impedance ensures <10 mV error across 0–5 mA signal current range. |
Use Scenario: Supplying accurate 7.5 V to external ADC reference pin in ARM Cortex-M0+ systems. IC Role / Device Role / Timing Role: External voltage reference for 12-bit SAR ADC conversion. Use Value: Matches typical internal reference accuracy targets; SOD−323FL fits space-constrained MCU modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B7V5 | Same 7.5 V ±5%, but SOD-323 package (not FL variant); 400 mW rating; higher 20 Ω ZZT | Higher power handling suits intermittent surge clamping; larger thermal mass affects transient response | Select when board layout allows standard SOD-323 footprint and higher pulse energy absorption is required |
| MMSZ5236B | 7.5 V ±5%, SOD-123 package; 500 mW rating; 17 Ω ZZT; 1.0 µA IR at 5 V | Larger footprint and higher leakage reduce suitability for ultra-low-power or space-constrained designs | Prefer for legacy designs using SOD-123 or where higher continuous power margin is prioritized over size |
Compared with BZX384-B7V5 and MMSZ5236B, the MM3Z7V5C offers the smallest footprint (SOD−323FL), lowest leakage (0.9 µA), and best dynamic impedance (14 Ω), making it optimal for miniaturized, low-quiescent-current applications where thermal constraints are managed via layout.
Availability
MM3Z7V5C is available at Aetrix Electronics and suitable for portable sensor biasing, USB-C overvoltage clamp, and industrial PLC analog input applications requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for MM3Z7V5C 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 MM3Z7V5C belongs to onsemi's MM3Z series of miniature Zener diodes, engineered specifically for high-volume, space-constrained applications demanding tight voltage tolerance, low leakage, and reliable SMT manufacturability.
FAQ
What is the maximum reverse leakage current for MM3Z7V5C at 5 V?
The MM3Z7V5C exhibits a maximum reverse leakage current of 0.9 µA at 5 V, as specified in the Electrical Characteristics table under "IR(A) @ VR" for VR = 5 V. This value is measured at TA = 25 °C and is critical for low-power standby modes. The MM3Z7V5C maintains this low leakage across its full operating temperature range, supporting energy-sensitive designs such as battery-powered sensors and wearables.
Is MM3Z7V5C compatible with lead-free reflow soldering processes?
Yes, the MM3Z7V5C features a matte tin (Sn) finish and is explicitly stated as Pb-free and RoHS compliant in the datasheet. It is qualified for standard lead-free reflow profiles including JEDEC J-STD-020, with peak temperatures up to 260 °C. The SOD−323FL package construction ensures mechanical integrity and intermetallic reliability under repeated thermal cycling, making MM3Z7V5C suitable for high-yield automated assembly.
What is the zener impedance of MM3Z7V5C and how is it measured?
The MM3Z7V5C has a maximum zener impedance (ZZT) of 14 Ω at IZT = 5 mA, measured using a 60-Hz AC current equal to 10% of the DC test current superimposed on IZT. This parameter reflects small-signal dynamic resistance and directly impacts regulation stability under varying load conditions. The low 14 Ω value of MM3Z7V5C improves voltage accuracy in precision analog circuits compared to higher-impedance alternatives.
Can MM3Z7V5C be used as a forward-biased clamp diode?
Yes, the MM3Z7V5C specifies a maximum forward voltage (VF) of 1.0 V at IF = 10 mA, confirming its usability in forward conduction mode. While primarily designed for reverse-bias regulation, MM3Z7V5C can serve as a low-voltage clamp or ESD protection element in bidirectional signal paths-provided current remains within absolute maximum ratings and thermal limits are observed in the target application.
What is the thermal resistance junction-to-ambient for MM3Z7V5C?
The MM3Z7V5C has a thermal resistance (RJA) of 595 °C/W when mounted on a PCB with minimum land pad, as defined in the Thermal Characteristics table. This high RJA value reflects the ultra-small SOD−323FL package and necessitates careful thermal design-such as copper pour under the cathode pad or adjacent thermal vias-to prevent junction temperature from exceeding 150 °C under sustained 200 mW dissipation.
MM3Z7V5C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 14 Ohms
- Current - Reverse Leakage @ Vr:
- 900 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
MM3Z7V5C FAQ
1.How can I place an order for MM3Z7V5C through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z7V5C 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 MM3Z7V5C reliable?
The price and inventory of MM3Z7V5C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z7V5C is usually 5 days.
3.What payment methods are accepted for MM3Z7V5C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z7V5C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z7V5C?
MM3Z7V5C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z7V5C 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 MM3Z7V5C?
For technical support, including MM3Z7V5C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z7V5C requirements.
6.How does Aetrix verify that MM3Z7V5C is sourced from the original manufacturer or authorized distributors?
All MM3Z7V5C 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 MM3Z7V5C meets industry standards.
7.What is the process for return or replacement of MM3Z7V5C?
All MM3Z7V5C units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z7V5C, 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 MM3Z7V5C part is unused and in its original packaging.
Return procedure for MM3Z7V5C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM3Z7V5C Tags
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