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onsemi MMSZ2V7T3G
- Part No.:
- MMSZ2V7T3G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ2V7T3G.pdf
- Description:
- DIODE ZENER 2.7V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:6,330
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Product details
Overview
MMSZ2V7T3G from onsemi is a 2.7 V ±5% Zener diode in SOD−123 package, rated for 500 mW power dissipation at 75°C, with 100 Ω dynamic impedance at 5 mA and 20 μA reverse leakage at 1 V, used for precision voltage reference and overvoltage protection in low-power sensor interfaces and microcontroller reset circuits.
For engineers reviewing the MMSZ2V7T3G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, AEC−Q101 qualification status, ESD robustness (Class 3, >16 kV HBM), and direct alternatives for automotive and industrial voltage regulation designs.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable 2.7 V output across load variations by conducting reverse current above its Zener knee voltage. Its 100 Ω Zener impedance at 5 mA ensures minimal voltage deviation under dynamic load transients.
Designed for surface-mount assembly on FR−4/FR−5 boards, it features a cathode band polarity indicator, UL 94 V−0 flammability rating, and 260°C soldering tolerance for 10 seconds - enabling compatibility with standard reflow profiles in high-density PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, ±5% tolerance (2.57–2.84 V), measured at IZT = 5 mA with 1 ms pulse width |
| Power Dissipation (PD) | 500 mW at TL = 75°C; derates linearly at 6.7 mW/°C above 75°C |
| Zener Impedance (ZZT) | 100 Ω max at IZT = 5 mA, f = 1 kHz, defining AC regulation stability |
| Reverse Leakage (IR) | 20 μA max at VR = 1 V, indicating low standby power loss in bias networks |
| Forward Voltage (VF) | 0.95 V max at IF = 10 mA, supporting use as low-drop rectifier or clamp in dual-role circuits |
| Junction Temp Range | −55°C to +150°C, validated for under-hood automotive and industrial ambient conditions |
| ESD Rating | Class 3 per Human Body Model (>16 kV), eliminating need for external ESD protection in I/O line clamping |
Pinout & Package
SOD−123 surface-mount package (1.60 × 2.69 × 1.16 mm), void-free thermosetting plastic case with corrosion-resistant, solderable finish; cathode identified by polarity band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; sinks current during Zener conduction |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Small SOD−123 footprint | Enables placement in space-constrained locations such as wearable sensor nodes and portable medical devices |
| 16 kV HBM ESD rating | Eliminates need for discrete TVS diodes in USB, I²C, and analog sensor signal lines |
| Pb−Free (RoHS compliant) | Meets global environmental compliance requirements without compromising thermal or electrical performance |
Applications
| Microcontroller Reset Circuit | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Providing clean, temperature-stable 2.7 V reference to enable/disable MCU reset logic during brown-out events. IC Role / Device Role / Timing Role: Shunt voltage reference and threshold detector for POR (Power-On Reset) circuitry. Use Value: Tight ±5% VZ tolerance and −55°C to +150°C operation ensure reliable reset assertion across automotive temperature ranges. | Use Scenario: Supplying stable bias voltage to analog front-end amplifiers in battery-powered gas sensors. IC Role / Device Role / Timing Role: Precision low-current voltage source replacing higher-power LDOs where quiescent current must be minimized. Use Value: 20 μA leakage at 1 V enables multi-year battery life in always-on sensing nodes. |
| USB Port Overvoltage Clamp | Industrial I/O Signal Protection |
Use Scenario: Clamping transient surges on USB VBUS lines in embedded host controllers to prevent damage to downstream ICs. IC Role / Device Role / Timing Role: Fast-acting shunt protector triggered at 2.7 V, diverting surge energy before reaching sensitive PHY circuitry. Use Value: 100 Ω ZZT ensures rapid response to <100 ns transients while limiting clamping voltage overshoot. | Use Scenario: Protecting PLC analog input channels from field-induced voltage spikes in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage limiter placed between terminal block and ADC input stage. Use Value: AEC−Q101 qualification and 150°C junction rating support deployment in uncooled control cabinets near motors and drives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C2V7LT1G | Same 2.7 V ±5% rating, but SOT−23 package (larger footprint, higher RJA = 350°C/W) | Lower power density; less suitable for ultra-compact PCBs requiring SOD−123 footprint | Select when legacy SOT−23 layout reuse is prioritized over board area savings |
| MMSZ2V7T1G | Identical electrical specs and SOD−123 package, differing only in tape-and-reel quantity (3,000 vs. 10,000 units) | No functional or mechanical difference; same thermal, electrical, and reliability performance | Choose MMSZ2V7T3G for high-volume production runs requiring larger reels to reduce changeover frequency |
Compared with BZX84-C2V7LT1G, MMSZ2V7T3G offers superior board-area efficiency and marginally better thermal resistance (RJA = 340°C/W); compared with MMSZ2V7T1G, it provides identical performance with optimized logistics for volume manufacturing.
Availability
MMSZ2V7T3G is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and portable medical diagnostics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MMSZ2V7T3G 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, and consumer markets.
The MMSZxxxT1G Series targets cost-sensitive, high-reliability voltage regulation in space-constrained applications - emphasizing AEC−Q101 qualification, Pb−free compliance, and automated assembly readiness.
FAQ
What is the Zener voltage tolerance of MMSZ2V7T3G?
MMSZ2V7T3G has a nominal Zener voltage of 2.7 V with a standard tolerance of ±5%, resulting in a guaranteed range of 2.57 V to 2.84 V when tested at IZT = 5 mA and PW = 1 ms. This tolerance is specified per onsemi's datasheet revision 13 and applies across the full operating temperature range of −55°C to +150°C. The MMSZ2V7T3G maintains this specification under both DC and pulsed test conditions.
Is MMSZ2V7T3G suitable for automotive applications?
Yes, MMSZ2V7T3G is AEC−Q101 qualified and PPAP capable, making it suitable for automotive applications including body electronics, infotainment power rails, and sensor interface protection. Its −55°C to +150°C junction temperature range, 16 kV HBM ESD rating, and Pb−free construction meet stringent automotive reliability and compliance requirements. The MMSZ2V7T3G is explicitly listed in onsemi's AEC−Q101 qualified product list.
What is the maximum power dissipation of MMSZ2V7T3G at room temperature?
MMSZ2V7T3G is rated for 500 mW total power dissipation on FR−5 board at TL = 75°C. At 25°C ambient, its practical dissipation remains limited by thermal resistance (RJA = 340°C/W); assuming TJ(max) = 150°C, the theoretical maximum is ~368 mW. However, the device's absolute maximum rating remains 500 mW - the MMSZ2V7T3G must be operated within derating curves shown in Figure 3 of the datasheet to ensure reliability.
Does MMSZ2V7T3G have a specified forward voltage?
Yes, MMSZ2V7T3G specifies a maximum forward voltage (VF) of 0.95 V at IF = 10 mA, per the Electrical Characteristics table. This parameter confirms usability in dual-role applications such as bidirectional clamping or low-voltage rectification. The MMSZ2V7T3G's forward conduction behavior is fully characterized and validated across temperature, supporting design reuse in both Zener and diode configurations.
What packaging option does MMSZ2V7T3G use?
MMSZ2V7T3G is supplied in Pb−free SOD−123 package (Case 425, Style 1) on 10,000-unit tape-and-reel. Its dimensions are 1.60 × 2.69 × 1.16 mm, with cathode indicated by a band. The "T3G" suffix denotes the Pb−free tape-and-reel variant - distinct from the T1G (3,000-unit reel) version - and the MMSZ2V7T3G complies with RoHS Directive 2011/65/EU and JEDEC JS709E.
MMSZ2V7T3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
MMSZ2V7T3G FAQ
1.How can I place an order for MMSZ2V7T3G through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ2V7T3G 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 MMSZ2V7T3G reliable?
The price and inventory of MMSZ2V7T3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ2V7T3G is usually 5 days.
3.What payment methods are accepted for MMSZ2V7T3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ2V7T3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ2V7T3G?
MMSZ2V7T3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ2V7T3G 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 MMSZ2V7T3G?
For technical support, including MMSZ2V7T3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ2V7T3G requirements.
6.How does Aetrix verify that MMSZ2V7T3G is sourced from the original manufacturer or authorized distributors?
All MMSZ2V7T3G 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 MMSZ2V7T3G meets industry standards.
7.What is the process for return or replacement of MMSZ2V7T3G?
All MMSZ2V7T3G units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ2V7T3G, 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 MMSZ2V7T3G part is unused and in its original packaging.
Return procedure for MMSZ2V7T3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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