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onsemi MM3Z3V3TT1G
- Part No.:
- MM3Z3V3TT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z3V3TT1G.pdf
- Description:
- DIODE ZENER 3.3V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,393
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Product details
Overview
MM3Z3V3TT1G from onsemi is a 3.3 V ±3.7% Zener diode in SOD−323 package, rated for 200 mW steady-state power dissipation, with 95 Ω maximum dynamic impedance at 5 mA test current and 1.0 µA reverse leakage at 2.5 V. It provides precision voltage regulation in space-constrained portable electronics such as smartphone power rails and USB interface protection circuits.
For engineers reviewing the MM3Z3V3TT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its tight 3.19–3.41 V Zener tolerance, low 0.9 V forward voltage at 10 mA, ESD rating >16 kV (HBM), and Pb-free SOD−323 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener regulator operates in reverse breakdown to clamp transient overvoltage and stabilize reference nodes. Its 95 Ω Zener impedance at IZT = 5 mA ensures stable regulation under moderate load variation, while the −3.5 mV/°C temperature coefficient limits drift across −65°C to +150°C junction range.
The device uses a void-free transfer-molded plastic case (UL 94 V−0), cathode-indicated polarity band, and Sn-only plating for Pb-free reflow compatibility up to 260°C for 10 seconds. Thermal resistance is 635°C/W, limiting usable power at elevated ambient temperatures per the derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.19–3.41 V at IZT = 5 mA - defines clamping threshold for 3.3 V rail protection |
| Power Dissipation | 200 mW @ TA = 25°C - sets max continuous energy handling before thermal shutdown |
| Zener Impedance ZZT | ≤95 Ω @ IZT = 5 mA - determines output voltage stability under load transients |
| Reverse Leakage IR | ≤1.0 µA @ VR = 2.5 V - ensures minimal quiescent current in standby mode |
| ESD Rating | >16 kV HBM - protects against human-body electrostatic discharge during handling and assembly |
| Package | SOD−323 (Case 477) - 1.7 mm × 1.25 mm × 0.9 mm footprint for ultra-compact routing |
| Forward Voltage VF | ≤0.9 V @ IF = 10 mA - enables use as low-drop rectifier or logic-level clamp |
Pinout & Package
SOD−323 surface-mount package with cathode indicated by polarity band; body dimensions 1.7 mm × 1.25 mm × 0.9 mm; weight 4.507 mg/unit; mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated node or voltage reference point; reverse-biased during regulation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener tolerance | ±3.7% (3.19–3.41 V) - reduces need for post-regulation trimming in 3.3 V systems |
| Low-profile SOD−323 | 0.9 mm height - enables stacking under shields or placement near BGA packages |
| High ESD robustness | >16 kV HBM - eliminates need for external TVS in handheld ESD-prone interfaces |
| Pb-free construction | Sn-only lead finish - compliant with RoHS and JEDEC J-STD-020 reflow profiles |
| Stable tempco | −3.5 mV/°C - predictable drift behavior simplifies thermal compensation in precision references |
Applications
| Smartphone Power Rail Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Protecting 3.3 V I/O supply from ESD and load-dump transients in mobile SoC power domains. IC Role / Device Role / Timing Role: Zener voltage clamp placed between rail and ground to shunt surge energy before it reaches PMIC or application processor. Use Value: 200 mW rating and 95 Ω ZZT enable reliable clamping of 8 kV contact ESD pulses without thermal runaway. | Use Scenario: Limiting signal swing on D+ and D− lines to prevent damage to USB transceivers during hot-plug events. IC Role / Device Role / Timing Role: Bidirectional transient suppressor configured with two MM3Z3V3TT1G devices (anode-to-anode) across differential pair. Use Value: 0.9 V forward voltage ensures minimal signal distortion below 3.3 V logic thresholds while maintaining fast response. |
| IoT Sensor Reference Stabilization | Wearable Battery Monitoring |
Use Scenario: Providing stable 3.3 V reference for ADC inputs in low-power environmental sensors. IC Role / Device Role / Timing Role: Shunt regulator supplying bias to precision op-amp or voltage divider network feeding SAR ADC. Use Value: ≤1.0 µA leakage at 2.5 V preserves battery life in multi-year deployments without active regulation overhead. | Use Scenario: Monitoring lithium-ion cell voltage via resistive divider with regulated reference in compact hearables. IC Role / Device Role / Timing Role: Zener-based reference for analog front-end that scales battery voltage to MCU ADC input range. Use Value: Tight 3.19–3.41 V tolerance ensures <±10 mV absolute error in state-of-charge calculation at 3.3 V nominal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V3,115 | Same 3.3 V nominal, ±5% tolerance (3.14–3.47 V); 300 mW rating; SOD-323 package | Higher power allows longer surge absorption but larger ZZT (120 Ω) reduces regulation precision | Select when higher pulse energy handling is prioritized over tight DC accuracy |
| MMSZ3V3T1G | Same 3.3 V nominal, ±5% tolerance; 350 mW rating; SOD-123 package (larger footprint) | Lower thermal resistance (357°C/W) improves sustained power capability but requires 2.3× board area | Select when thermal margin outweighs space constraints in industrial control modules |
Compared with BZX384-B3V3,115 and MMSZ3V3T1G, MM3Z3V3TT1G delivers tighter voltage tolerance and smallest PCB footprint among 3.3 V Zeners, making it optimal for miniaturized consumer electronics where layout density and reference accuracy are critical.
Availability
MM3Z3V3TT1G is available at Aetrix Electronics and suitable for smartphone power rail protection, USB data line clamping, and IoT sensor reference stabilization requiring stable component supply and consistent Pb-free manufacturing.
Supply support for MM3Z3V3TT1G 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient innovation for automotive, industrial, cloud, and intelligent edge applications.
The MM3Z series belongs to onsemi's precision Zener voltage regulator portfolio, designed specifically for space-constrained, high-reliability voltage reference and transient suppression in portable and battery-powered systems.
FAQ
What is the Zener voltage tolerance of MM3Z3V3TT1G?
The MM3Z3V3TT1G has a specified Zener voltage range of 3.19 V to 3.41 V at 5 mA test current, corresponding to a ±3.7% tolerance around the nominal 3.3 V rating. This tight tolerance is confirmed in the Electrical Characteristics table of the official onsemi datasheet (Rev. 9, page 2) and enables precise voltage clamping without additional calibration in 3.3 V system designs.
Is MM3Z3V3TT1G RoHS-compliant and Pb-free?
Yes, MM3Z3V3TT1G is explicitly marked as Pb-free in the Ordering Information section of the datasheet, with Sn-only lead plating and compliance to RoHS Directive 2011/65/EU. The "G" suffix denotes Pb-free packaging, and the device meets JEDEC J-STD-020 reflow standards with a maximum soldering temperature of 260°C for 10 seconds.
What is the maximum power dissipation for MM3Z3V3TT1G at 70°C ambient?
At 70°C ambient, MM3Z3V3TT1G's power dissipation must be derated from its 200 mW rating at 25°C. With a derating factor of 1.5 mW/°C above 25°C, the allowable power is 200 mW − (1.5 mW/°C × 45°C) = 132.5 mW. This value is derived directly from the Maximum Ratings table (page 1) and ensures safe operation within thermal limits.
How does the ESD rating of MM3Z3V3TT1G compare to standard requirements?
MM3Z3V3TT1G achieves Class 3 ESD rating (>16 kV) per Human Body Model, exceeding IEC 61000-4-2 Level 4 (8 kV contact) requirements. This high immunity is validated in the Specification Features section and allows direct placement on exposed I/O lines in handheld devices without supplemental TVS protection.
Can MM3Z3V3TT1G be used in bidirectional ESD protection configurations?
Yes, MM3Z3V3TT1G can be used in anode-to-anode configuration with a second identical device to provide bidirectional clamping for differential signals like USB D+/D−. Its matched forward voltage (≤0.9 V) and symmetric Zener characteristics enable balanced clamping thresholds, as supported by onsemi's application guidance for SOD−323 Zener arrays in transient suppression circuits.
MM3Z3V3TT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±3%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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
MM3Z3V3TT1G FAQ
1.How can I place an order for MM3Z3V3TT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z3V3TT1G 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 MM3Z3V3TT1G reliable?
The price and inventory of MM3Z3V3TT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z3V3TT1G is usually 5 days.
3.What payment methods are accepted for MM3Z3V3TT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z3V3TT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z3V3TT1G?
MM3Z3V3TT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z3V3TT1G 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 MM3Z3V3TT1G?
For technical support, including MM3Z3V3TT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z3V3TT1G requirements.
6.How does Aetrix verify that MM3Z3V3TT1G is sourced from the original manufacturer or authorized distributors?
All MM3Z3V3TT1G 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 MM3Z3V3TT1G meets industry standards.
7.What is the process for return or replacement of MM3Z3V3TT1G?
All MM3Z3V3TT1G units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z3V3TT1G, 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 MM3Z3V3TT1G part is unused and in its original packaging.
Return procedure for MM3Z3V3TT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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