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onsemi MM5Z2V7ST1
- Part No.:
- MM5Z2V7ST1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z2V7ST1.pdf
- Description:
- DIODE ZENER 2.7V 200MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:5,385
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Product details
Overview
MM5Z2V7ST1 from onsemi is a 2.7 V ±4.4% Zener diode in SOD−523 package, rated for 200 mW steady-state power dissipation at 25°C with 100 Ω maximum Zener impedance at 5 mA test current and −3.5 mV/°C temperature coefficient. It provides precision voltage regulation in space-constrained portable electronics.
For engineers reviewing the MM5Z2V7ST1 datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±4.4%), low-profile SOD−523 footprint (1.20 mm × 0.80 mm), ESD robustness (>16 kV HBM), thermal resistance (635 °C/W), and tight ZZK (100 Ω @ 1.0 mA).
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in silicon PN junction. Its 2.7 V nominal Zener voltage is specified at 5 mA test current (IZT), with guaranteed minimum/maximum VZ of 2.67 V and 2.91 V respectively, and maintains regulation down to 1.0 mA (IZK) with 100 Ω dynamic impedance.
The SOD−523 package enables surface-mount integration on high-density PCBs, with MSL 1 rating, 260°C reflow compatibility, and Pb-free matte tin lead finish. Thermal derating begins above 25°C at 1.5 mW/°C, supporting stable operation up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.67 V min / 2.91 V max @ IZT = 5 mA - defines regulated output range under standard test conditions |
| Power Dissipation (PD) | 200 mW @ TA = 25°C - maximum continuous power before thermal derating applies |
| Zener Impedance (ZZT) | 100 Ω max @ IZT = 5 mA - determines output voltage stability under load variation |
| Reverse Leakage (IR) | 1.0 μA max @ VR = 1.0 V - ensures minimal standby current in regulation mode |
| Temperature Coefficient | −3.5 mV/°C @ IZT = 5 mA - quantifies VZ drift over operating temperature range |
| Capacitance (C) | 450 pF max @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
| ESD Rating | Class 3 (>16 kV) per HBM - supports handling in uncontrolled electrostatic environments |
Pinout & Package
SOD−523 plastic surface-mount package: 1.20 mm × 0.80 mm body, 0.70 mm height, cathode marked with band. Mounting position unrestricted; qualified for 260°C reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated output node; reverse-biased during operation |
| 2 (Anode) | Reference ground return | Provides current return path; tied to system ground or bias rail |
Key Features
| Feature | Design Value |
|---|---|
| Tight VZ tolerance | ±4.4% (2.67–2.91 V) enables accurate voltage clamping without external trimming |
| Low-profile SOD−523 | 0.7 mm height and 1.20 mm × 0.80 mm footprint saves board area in portable designs |
| High ESD robustness | >16 kV HBM rating reduces need for supplemental ESD protection circuitry |
| Pb-free construction | 100% matte Sn lead finish complies with RoHS and JEDEC J-STD-020 MSL 1 requirements |
Applications
| Smartphone Power Rail Protection | Wearable Sensor Biasing |
|---|---|
Use Scenario: Clamping 3.3 V LDO output against transient surges in LTE modem subsystems. IC Role / Device Role / Timing Role: Zener voltage regulator providing overvoltage protection and reference stabilization. Use Value: Prevents damage to sensitive RF ICs by limiting rail excursion to ≤2.91 V with <100 Ω dynamic impedance. | Use Scenario: Establishing stable 2.7 V bias for MEMS accelerometer analog front-end. IC Role / Device Role / Timing Role: Precision shunt reference supplying fixed excitation voltage. Use Value: Maintains sensor accuracy across −40°C to +85°C with −3.5 mV/°C TC and <1 μA leakage. |
| USB-C Port ESD Clamp | IoT Node Battery Monitoring |
Use Scenario: Secondary-level ESD protection on VBUS line after primary TVS. IC Role / Device Role / Timing Role: Low-capacitance (450 pF) shunt clamp absorbing residual transients. Use Value: Adds >16 kV HBM immunity without degrading USB 2.0 signal integrity due to compact size. | Use Scenario: Reference voltage source for 12-bit ADC measuring Li-ion cell voltage. IC Role / Device Role / Timing Role: Stable 2.7 V Zener reference enabling ±0.5% battery SOC estimation. Use Value: Delivers 2.67–2.91 V regulation with <100 Ω impedance, minimizing ADC gain error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V7 | Same 2.7 V nominal, but SOD-323 package (1.7 × 1.3 mm); 300 mW rating; ZZT = 120 Ω | Larger footprint; higher power handling; less suitable for ultra-dense layouts | Select when higher power margin or legacy SOD-323 layout compatibility is required |
| MMSZ4678T1G | 2.7 V nominal, SOD-123 package (3.7 × 1.6 mm); 500 mW rating; ZZT = 150 Ω; ±5% tolerance | Significantly larger size; higher leakage (5 μA); lower impedance tolerance control | Choose where board space is unconstrained and higher power dissipation is needed |
Compared with BZX584C2V7 and MMSZ4678T1G, the MM5Z2V7ST1 offers the smallest footprint (SOD−523), tightest VZ tolerance (±4.4%), and lowest profile (0.7 mm), making it optimal for miniaturized portable electronics where board area and height are critical constraints.
Availability
MM5Z2V7ST1 is available at Aetrix Electronics and suitable for smartphone power rail protection, wearable sensor biasing, USB-C port ESD clamping, and IoT node battery monitoring requiring stable component supply and consistent parametric performance.
Supply support for MM5Z2V7ST1 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 MM5Z series is designed specifically for space-constrained voltage regulation and ESD protection in portable consumer electronics, emphasizing ultra-small form factor, tight Zener voltage tolerance, and high-reliability Pb-free packaging.
FAQ
What is the Zener voltage tolerance of MM5Z2V7ST1?
The MM5Z2V7ST1 has a Zener voltage tolerance of ±4.4%, with a guaranteed range of 2.67 V to 2.91 V at 5 mA test current (IZT). This tight tolerance is confirmed in the Electrical Characteristics table of the official onsemi datasheet and supports precise voltage clamping without external calibration in applications like sensor biasing and power rail protection.
What package type does MM5Z2V7ST1 use?
MM5Z2V7ST1 uses the SOD−523 surface-mount package (Case 502), measuring 1.20 mm × 0.80 mm with a height of 0.70 mm. This ultra-compact, Pb-free package is MSL 1 rated and qualified for 260°C reflow soldering, making it ideal for high-density PCBs in smartphones and wearables.
What is the maximum Zener impedance of MM5Z2V7ST1?
The maximum Zener impedance (ZZT) of MM5Z2V7ST1 is 100 Ω at IZT = 5 mA, as specified in the Electrical Characteristics table. This low dynamic impedance ensures stable regulation under varying load conditions and minimizes output voltage deviation during transient events in circuits like LDO output clamping.
Does MM5Z2V7ST1 have ESD protection capability?
Yes, MM5Z2V7ST1 is rated Class 3 for Human Body Model (HBM) ESD with >16 kV withstand capability. This intrinsic robustness allows it to serve as both a voltage regulator and secondary ESD clamp in interfaces such as USB-C VBUS lines, reducing the need for additional discrete protection components.
What is the thermal resistance of MM5Z2V7ST1?
The thermal resistance from junction-to-ambient (RJA) of MM5Z2V7ST1 is 635 °C/W on FR-4 board. This value, specified in the Maximum Ratings table, determines how much the junction temperature rises per milliwatt of dissipated power and informs derating calculations above 25°C ambient.
MM5Z2V7ST1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±4%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 100 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-523
MM5Z2V7ST1 FAQ
1.How can I place an order for MM5Z2V7ST1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z2V7ST1 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 MM5Z2V7ST1 reliable?
The price and inventory of MM5Z2V7ST1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z2V7ST1 is usually 5 days.
3.What payment methods are accepted for MM5Z2V7ST1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z2V7ST1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z2V7ST1?
MM5Z2V7ST1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z2V7ST1 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 MM5Z2V7ST1?
For technical support, including MM5Z2V7ST1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z2V7ST1 requirements.
6.How does Aetrix verify that MM5Z2V7ST1 is sourced from the original manufacturer or authorized distributors?
All MM5Z2V7ST1 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 MM5Z2V7ST1 meets industry standards.
7.What is the process for return or replacement of MM5Z2V7ST1?
All MM5Z2V7ST1 units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z2V7ST1, 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 MM5Z2V7ST1 part is unused and in its original packaging.
Return procedure for MM5Z2V7ST1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z2V7ST1 Tags
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