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onsemi MM5Z75V
- Part No.:
- MM5Z75V
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z75V.pdf
- Description:
- DIODE ZENER 75V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:40,000
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Product details
Overview
MM5Z75V from Fairchild Semiconductor is a surface-mount Zener diode with nominal zener voltage 75 V (min 70 V, max 79 V) at test current 2 mA, dynamic impedance 255 Ω at IZT, power dissipation 200 mW, and operating temperature range −55 °C to +150 °C. It provides precise voltage regulation in compact power-supply feedback paths, overvoltage protection circuits, and reference voltage generation for industrial sensor interfaces.
For engineers reviewing the MM5Z75V datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, SOD-523F package dimensions, cathode band identification, thermal resistance (500 °C/W), and direct alternative part comparisons - all confirmed from Fairchild's Rev. 1.5 datasheet.
Technical Context
The MM5Z75V operates as a reverse-biased voltage-reference device, maintaining stable output voltage across varying load currents within its specified 2 mA test condition and 0.5 mA knee current (IZK). Its zener impedance of 255 Ω at IZT and 500 Ω at IZK defines regulation accuracy under transient load shifts.
Designed for high-reliability surface-mount applications, it features moisture sensitivity level 1, matte tin lead finish, green mold compound, and JEITA SC79-compliant SOD-523F package - height under 0.70 mm, footprint optimized for space-constrained PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 70–79 V at IZT = 2 mA: defines regulation window for precision clamping at high-voltage nodes |
| Zener Impedance (ZZT) | 255 Ω at IZT = 2 mA: indicates voltage deviation under small-signal AC load variation |
| Power Dissipation (PD) | 200 mW: sets maximum continuous DC power handling on FR-4 PCB with minimum land pad |
| Reverse Leakage (IR) | 0.05 μA at VR = 52.5 V: ensures minimal quiescent current in standby protection circuits |
| Thermal Resistance (RθJA) | 500 °C/W: determines junction temperature rise above ambient under full power operation |
| Operating Temperature | −55 °C to +150 °C: supports deployment in automotive engine control units and industrial motor drives |
Pinout & Package
Package: SOD-523F - ultra-thin (≤0.70 mm), 2-lead surface-mount plastic package per JEITA SC79; cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node in reverse-bias configuration; carries forward current during non-regulation states |
| 2 | Cathode | Marked with band; connected to regulated voltage rail; sustains reverse breakdown at 75 V nominal |
Key Features
| Feature | Design Value |
|---|---|
| Flat lead, low-profile SOD-523F | Height ≤0.70 mm enables use in ultra-thin consumer electronics and wearable power management |
| Moisture Sensitivity Level 1 | Eliminates bake requirements before reflow, reducing manufacturing cycle time and cost |
| Pb-free and RoHS compliant | Meets global environmental compliance mandates without derating or performance trade-offs |
| Matte tin (Sn) lead finish | Ensures reliable solder wetting and intermetallic formation on standard SnPb or lead-free pastes |
Applications
| Industrial Power Supply Feedback | Automotive Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference establishing precise 75 V threshold for TL431-type error amplifier biasing. Use Value: Maintains ±3% output regulation across line/load transients due to tight 70–79 V VZ tolerance and low 255 Ω ZZT. |
Use Scenario: Clamps transients on 48 V battery monitoring lines during load dump events. IC Role / Device Role / Timing Role: High-voltage shunt protector absorbing surge energy above 52.5 V (VR) with sub-0.05 μA leakage. Use Value: Prevents damage to downstream ADC inputs while drawing negligible current in normal operation. |
| Programmable Reference Generator | LED Driver Voltage Setpoint |
Use Scenario: Sets adjustable reference for programmable DC-DC controller ICs requiring >70 V setpoints. IC Role / Device Role / Timing Role: Stable voltage source enabling accurate current limit programming in high-side sensing topologies. Use Value: Delivers 75 V nominal with <±6% variation over −55 °C to +150 °C, supporting wide-temperature industrial designs. |
Use Scenario: Defines upper voltage limit in constant-current LED driver feedback networks for high-brightness arrays. IC Role / Device Role / Timing Role: Zener clamp protecting driver IC from bus overvoltage during hot-plug or ESD events. Use Value: Withstands 200 mW continuous dissipation and 500 °C/W RθJA, enabling robust thermal design without heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C75 | Same 75 V nominal VZ, but SOD-323 package (1.3 mm height); ZZT = 300 Ω at 5 mA | Higher profile limits use in ultra-thin assemblies; higher test current shifts regulation point | Select when board height budget allows ≥1.3 mm and existing layout uses SOD-323 footprints |
| 1N4744A | 75 V VZ at 20 mA; DO-41 through-hole; PD = 1 W; ZZT = 18 Ω | Requires PCB through-holes and larger keep-out; suited for high-power, non-SMT legacy systems | Choose only for through-hole prototyping or repair of legacy equipment where SMT is not feasible |
Compared with BZX584C75 and 1N4744A, the MM5Z75V offers the lowest profile (≤0.70 mm), tightest VZ tolerance at 2 mA, and MSL-1 handling - making it optimal for modern high-density SMT power management where board space and assembly efficiency are critical.
Availability
MM5Z75V is available at Aetrix Electronics and suitable for industrial power supply feedback, automotive overvoltage clamp, and programmable reference generator applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MM5Z75V 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 solutions before its acquisition by ON Semiconductor in 2016; its legacy products remain widely deployed in industrial and automotive systems.
The MM5Z75V belongs to Fairchild's MM5Z series of miniature Zener diodes engineered for high-precision voltage regulation in space-constrained, high-reliability surface-mount applications - particularly feedback networks and protection circuits.
FAQ
What is the exact zener voltage range for MM5Z75V?
The MM5Z75V has a guaranteed zener voltage range of 70 V to 79 V at test current IZT = 2 mA, with typical value 75 V. This range is specified in Fairchild's MM5Z2V4–MM5Z75V Rev. 1.5 datasheet and reflects process-controlled tolerance for stable regulation in high-voltage reference circuits. The MM5Z75V maintains this specification across its full operating temperature range.
Does MM5Z75V have a defined cathode marking?
Yes, the MM5Z75V uses a molded band on the SOD-523F package to identify the cathode terminal (Pin 2). This marking aligns with JEITA SC79 standards and is visible under standard optical inspection. The anode (Pin 1) is unmarked and located opposite the band - critical for correct orientation during automated placement and functional testing of the MM5Z75V.
What is the maximum power dissipation of MM5Z75V and under what conditions?
The MM5Z75V has a maximum power dissipation of 200 mW at TA = 25 °C when mounted on an FR-4 PCB with minimum land pad, as stated in the Absolute Maximum Ratings table. Derating is required above 25 °C at 1.6 mW/°C based on its 500 °C/W junction-to-ambient thermal resistance. This rating directly governs safe continuous operation in MM5Z75V-based voltage clamp and reference designs.
Is MM5Z75V RoHS compliant and lead-free?
Yes, the MM5Z75V is Pb-free and RoHS compliant, with matte tin (Sn) lead finish and green mold compound. These attributes are explicitly confirmed in the Features section of the Fairchild MM5Z2V4–MM5Z75V Rev. 1.5 datasheet. Compliance applies to both material composition and manufacturing process - ensuring the MM5Z75V meets EU Directive 2011/65/EU without exemptions.
What is the reverse leakage current specification for MM5Z75V?
The MM5Z75V exhibits a maximum reverse leakage current (IR) of 0.05 μA at reverse voltage VR = 52.5 V, per the Electrical Characteristics table. This ultra-low leakage ensures minimal parasitic loading in high-impedance reference nodes and preserves accuracy in battery-powered sensor signal chains where the MM5Z75V serves as a precision voltage threshold element.
MM5Z75V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 75 V
- Tolerance:
- ±6%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 255 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 52.5 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
MM5Z75V FAQ
1.How can I place an order for MM5Z75V through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z75V 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 MM5Z75V reliable?
The price and inventory of MM5Z75V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z75V is usually 5 days.
3.What payment methods are accepted for MM5Z75V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z75V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z75V?
MM5Z75V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z75V 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 MM5Z75V?
For technical support, including MM5Z75V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z75V requirements.
6.How does Aetrix verify that MM5Z75V is sourced from the original manufacturer or authorized distributors?
All MM5Z75V 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 MM5Z75V meets industry standards.
7.What is the process for return or replacement of MM5Z75V?
All MM5Z75V units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z75V, 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 MM5Z75V part is unused and in its original packaging.
Return procedure for MM5Z75V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z75V Tags
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