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onsemi MM3Z7V5T1G
- Part No.:
- MM3Z7V5T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z7V5T1G.pdf
- Description:
- DIODE ZENER 7.5V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:17,863
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Product details
Overview
MM3Z7V5T1G from onsemi is a 300 mW, 7.5 V nominal Zener voltage regulator diode in SOD−323 package, designed for precision voltage reference and overvoltage protection in space-constrained circuits. It delivers ±0.4 V tolerance (7.0–7.9 V), 15 Ω dynamic impedance at 5 mA test current, and 1 μA leakage at 5.0 V reverse bias - enabling stable regulation in portable power rails and I/O clamping.
For engineers reviewing the MM3Z7V5T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 7.5 V Zener voltage with +2.5 mV/°C temperature coefficient, 140 pF capacitance at 0 V, ESD rating >16 kV HBM, and compatibility with high-density PCB layouts requiring ultra-small 1.7 mm × 1.25 mm footprints.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across variable load or input conditions. Its low 15 Ω Zener impedance at IZT = 5 mA ensures minimal voltage deviation under dynamic current changes, while the +2.5 mV/°C temperature coefficient enables predictable drift compensation in ambient-variant environments.
The device uses a silicon planar epitaxial construction in a void-free, Pb-free molded plastic case (UL 94 V−0 rated), with cathode polarity marked by a band. It supports reflow soldering up to 260°C for 10 seconds and is qualified to AEC−Q101 for automotive-grade reliability when ordered as SZMM3Z7V5T1G.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0–7.9 V at IZT = 5 mA - defines tight regulation window for 7.5 V nominal reference applications |
| Zener Impedance (ZZT) | 15 Ω max at IZT = 5 mA - ensures <±75 mV output shift under ±1 mA load transients |
| Power Dissipation (PD) | 300 mW at TA = 25°C - supports continuous regulation in low-power sensor nodes and I/O protectors |
| Leakage Current (IR) | 1 μA max at VR = 5.0 V - minimizes standby power loss in battery-backed circuits |
| Capacitance (C) | 140 pF at VR = 0 V, f = 1 MHz - limits high-frequency noise coupling in signal-line protection |
| ESD Rating | Class 3 (>16 kV) per HBM - provides robust handling without external ESD safeguards |
| Temp Coefficient (αVZ) | +2.5 mV/°C - enables linear drift modeling for temperature-compensated references |
Pinout & Package
SOD−323 surface-mount package: 1.7 mm × 1.25 mm body, 0.9 mm height, cathode indicated by polarity band. Compatible with standard 0201 footprint variants and automated pick-and-place.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Pb-Free & RoHS Compliant | Meets global environmental standards without compromising thermal or electrical performance |
| AEC−Q101 Qualified Option | SZMM3Z7V5T1G variant available for automotive ECUs and ADAS sensors requiring PPAP documentation |
| Low Profile Height (0.9 mm) | Enables stacking under shields or integration into ultra-thin handheld PCBs |
| High ESD Robustness (>16 kV HBM) | Eliminates need for supplemental TVS devices in consumer USB and audio interface protection |
| Stable Zener Voltage Drift | +2.5 mV/°C coefficient allows accurate thermal error budgeting in industrial temperature ranges |
Applications
| Portable Power Monitoring | I/O Line Clamping |
|---|---|
Use Scenario: Monitoring Li-ion battery voltage in Bluetooth earbuds using ADC with internal reference. IC Role / Device Role / Timing Role: Provides stable 7.5 V Zener reference for ADC scaling and overvoltage detection threshold. Use Value: Tight 7.0–7.9 V tolerance ensures ±0.4 V absolute accuracy in 12-bit battery reporting without calibration. | Use Scenario: Protecting UART TX/RX pins against ESD and transient surges in smartwatches. IC Role / Device Role / Timing Role: Acts as bidirectional shunt clamp between signal line and ground, conducting above 7.5 V. Use Value: 140 pF capacitance avoids signal integrity degradation at 2 Mbps UART rates while passing >16 kV HBM. |
| Automotive Sensor Biasing | Industrial DAC Reference |
Use Scenario: Supplying precise bias voltage to MEMS pressure sensor front-end in engine control modules. IC Role / Device Role / Timing Role: Delivers temperature-stable reference to op-amp gain stage with minimal drift. Use Value: +2.5 mV/°C coefficient enables <±15 mV total drift over −40°C to +125°C operating range. | Use Scenario: Setting full-scale reference for 16-bit DAC in programmable logic controller analog outputs. IC Role / Device Role / Timing Role: Functions as low-noise, low-drift voltage reference source for DAC VREF input. Use Value: 15 Ω Zener impedance suppresses supply-induced ripple, maintaining <0.01% INL error at full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B7V5 | Same 7.5 V nominal, but 350 mW rating and SOD-323 package; higher leakage (5 μA @ 5 V) | Higher power margin suits intermittent surge clamping; less suitable for ultra-low-IQ battery monitoring | Select when >300 mW pulse dissipation is required and leakage tolerance >1 μA is acceptable |
| MMSZ4689T1G | 7.5 V nominal, 500 mW rating, SOD-123 package (larger: 3.5 mm × 1.6 mm); 20 Ω ZZT | Greater thermal mass improves sustained regulation; incompatible with 0201-layout constraints | Select when board space permits larger footprint and higher continuous power is needed |
Compared with BZX384-B7V5 and MMSZ4689T1G, MM3Z7V5T1G offers the smallest footprint (1.7 mm × 1.25 mm), lowest leakage (1 μA), and tightest voltage tolerance (±0.4 V), making it optimal for miniaturized, low-power, high-accuracy Zener reference designs where layout density is critical.
Availability
MM3Z7V5T1G is available at Aetrix Electronics and suitable for portable electronics, automotive sensor modules, and industrial DAC reference circuits requiring stable component supply and long-term obsolescence management.
Supply support for MM3Z7V5T1G 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM3ZxxxT1G series targets compact, high-reliability voltage regulation in space-constrained systems - emphasizing low-profile packaging, AEC−Q101 qualification readiness, and tight parametric control for portable and automotive electronics.
FAQ
What is the Zener voltage tolerance of MM3Z7V5T1G at 5 mA test current?
The MM3Z7V5T1G has a specified Zener voltage range of 7.0 V to 7.9 V at IZT = 5 mA, yielding a nominal 7.5 V with ±0.4 V absolute tolerance. This tolerance is guaranteed across manufacturing lots and supports accurate voltage referencing without post-production trimming. The MM3Z7V5T1G datasheet confirms this range under standard test conditions (TA = 25°C, pulsed measurement).
Does MM3Z7V5T1G support automotive-grade applications?
Yes - the SZMM3Z7V5T1G variant is AEC−Q101 qualified, PPAP capable, and manufactured under automotive-specific process controls. While MM3Z7V5T1G itself is commercial-grade, its SZ-prefixed counterpart shares identical electrical specs and SOD−323 packaging, enabling drop-in qualification for engine control, body electronics, and ADAS sensor modules requiring automotive reliability.
What is the maximum reverse leakage current for MM3Z7V5T1G at 5.0 V?
The MM3Z7V5T1G exhibits a maximum reverse leakage current of 1 μA at VR = 5.0 V and TA = 25°C. This low leakage preserves battery life in always-on monitoring circuits and ensures minimal loading on high-impedance reference nodes. The value is measured per the official onsemi datasheet and applies to all units within specification.
Can MM3Z7V5T1G be used in place of a 7.5 V voltage reference IC?
MM3Z7V5T1G serves as a discrete Zener reference - not a precision voltage reference IC. It lacks active temperature compensation or buffered output, so it's appropriate for moderate-accuracy applications (e.g., ADC scaling, overvoltage thresholds) but not for sub-0.1% stability requirements. For such cases, dedicated reference ICs like REF5075 should be considered instead of MM3Z7V5T1G.
What is the thermal resistance junction-to-ambient (RJA) for MM3Z7V5T1G on FR-4 board?
The MM3Z7V5T1G has a thermal resistance of 416°C/W junction-to-ambient on a single-sided FR-4 board with 1 cm² copper pad, per the onsemi datasheet. This value assumes standard JEDEC test conditions and directly informs derating: power must be reduced by 2.4 mW/°C above 25°C ambient to maintain safe junction temperature. Actual RJA improves with enhanced PCB copper area or thermal vias.
MM3Z7V5T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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-323
MM3Z7V5T1G FAQ
1.How can I place an order for MM3Z7V5T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z7V5T1G 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 MM3Z7V5T1G reliable?
The price and inventory of MM3Z7V5T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z7V5T1G is usually 5 days.
3.What payment methods are accepted for MM3Z7V5T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z7V5T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z7V5T1G?
MM3Z7V5T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z7V5T1G 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 MM3Z7V5T1G?
For technical support, including MM3Z7V5T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z7V5T1G requirements.
6.How does Aetrix verify that MM3Z7V5T1G is sourced from the original manufacturer or authorized distributors?
All MM3Z7V5T1G 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 MM3Z7V5T1G meets industry standards.
7.What is the process for return or replacement of MM3Z7V5T1G?
All MM3Z7V5T1G units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z7V5T1G, 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 MM3Z7V5T1G part is unused and in its original packaging.
Return procedure for MM3Z7V5T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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