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onsemi MM5Z4689T1G
- Part No.:
- MM5Z4689T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z4689T1G.pdf
- Description:
- DIODE ZENER 5.1V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,698
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Product details
Overview
MM5Z4689T1G from onsemi is a 5.1 V ±5% Zener voltage regulator diode in SOD−523 package, rated for 500 mW power dissipation at TL = 75°C, with 10 µA reverse leakage at VR = 3 V and ESD rating >16 kV (HBM). It serves as a precision voltage reference and overvoltage clamp in space-constrained portable electronics.
For engineers reviewing the MM5Z4689T1G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance, thermal derating behavior, low IZT (50 µA), SOD−523 footprint compatibility, and Class 3 ESD robustness in high-density PCB layouts.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage across variable load currents by conducting excess current to ground when input exceeds VZ. Its 5.1 V nominal Zener voltage is specified at IZT = 50 µA and TA = 25°C, with temperature coefficient near 0 mV/°C in this range per typical curves.
The SOD−523 package enables automated placement and reflow soldering, with maximum case temperature of 260°C for 10 seconds. Junction-to-ambient thermal resistance is 250°C/W, requiring careful layout for thermal management above ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.85–5.36 V @ IZT = 50 µA - defines clamping threshold with ±5% tolerance at nominal 5.1 V |
| Power Dissipation (PD) | 500 mW @ TL = 75°C - usable continuous power before thermal shutdown on FR−5 board |
| Reverse Leakage (IR) | 10 µA @ VR = 3 V - ensures minimal standby current in voltage-reference applications |
| ESD Rating | Class 3 (>16 kV HBM) - supports robust handling in manual assembly and field-replaceable modules |
| Package | SOD−523 (1.20 × 0.80 × 0.60 mm) - enables <0.7 mm² board area usage in ultra-compact designs |
| Junction Temp Range | −55°C to +150°C - supports operation in automotive under-hood and industrial edge environments |
Pinout & Package
SOD−523 surface-mount package with cathode indicated by polarity band; 2-terminal configuration optimized for automated pick-and-place and reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; conducts when anode-to-cathode voltage exceeds VZ |
| 2 (Non-banded End) | Anode | Connected to ground or low-impedance return path; completes shunt regulation loop |
Key Features
| Feature | Design Value |
|---|---|
| 500 mW FR−5 power rating | Enables use as primary voltage clamp in 3.3 V and 5 V rail protection without external heatsinking |
| Low IZT = 50 µA | Allows stable regulation in ultra-low-power sensor nodes and battery-backed circuits |
| ESD Class 3 (>16 kV HBM) | Reduces need for supplemental TVS devices in handheld and wearable ESD-prone interfaces |
| Pb−Free, RoHS-compliant | Meets global environmental compliance requirements for consumer and medical end equipment |
Applications
| Smartphone Power Rail Clamp | IoT Sensor Reference Voltage |
|---|---|
Use Scenario: Clamping transient spikes on 5 V USB-powered subsystems during hot-plug events. IC Role / Device Role / Timing Role: Shunt Zener regulator providing fast overvoltage protection without control logic. Use Value: Prevents latch-up in PMICs and baseband ICs using only 0.7 mm² board area and no active components. |
Use Scenario: Generating stable 5.1 V reference for 12-bit ADCs in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Passive voltage reference source with minimal quiescent current draw. Use Value: Delivers ±5% accuracy at 50 µA bias, enabling <±1 LSB error without trimming or calibration. |
| Wearable Battery Monitor | Industrial PLC Input Protection |
Use Scenario: Regulating charging circuit feedback voltage in compact hearable devices with Li-ion batteries. IC Role / Device Role / Timing Role: Precision voltage clamp stabilizing feedback divider network against supply ripple. Use Value: Maintains charge termination accuracy within ±0.5% over −20°C to +70°C ambient without compensation. |
Use Scenario: Protecting 24 V digital input channels from induced surges in factory automation panels. IC Role / Device Role / Timing Role: Primary overvoltage limiter placed ahead of optocoupler input stages. Use Value: Absorbs repetitive transients up to 500 mW without degradation, validated to AEC−Q101 stress profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C5V1LT1G | Same 5.1 V nominal, but ±1% tolerance and higher IZT = 5 mA; SOD−523 package | Higher test current yields tighter regulation under load but increases standby power | Select when tighter voltage tolerance outweighs ultra-low IZT requirement |
| MMSZ5231BT1G | 5.1 V nominal, ±5% tolerance, but SOD−123 package (2.7 × 1.6 mm); PD = 500 mW | Larger footprint limits use in sub-1 mm² layouts; better thermal mass for pulsed loads | Select when board space allows larger package and higher surge energy handling is needed |
Compared with BZX584C5V1LT1G and MMSZ5231BT1G, MM5Z4689T1G uniquely balances ultra-small size, low 50 µA test current, and Class 3 ESD robustness-making it optimal for miniaturized, battery-sensitive, and ESD-exposed applications where both space and quiescent current are constrained.
Availability
MM5Z4689T1G is available at Aetrix Electronics and suitable for smartphone power rail clamp, IoT sensor reference voltage, and wearable battery monitor applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for MM5Z4689T1G 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, medical, and IoT applications.
The MM5Z4xxxTxG series is designed specifically for space-constrained voltage regulation and ESD protection in portable electronics, emphasizing ultra-small packaging, low leakage, and high reliability in high-density PCB environments.
FAQ
What is the nominal Zener voltage and tolerance of MM5Z4689T1G?
The MM5Z4689T1G has a nominal Zener voltage of 5.1 V with a tolerance of ±5%, meaning its actual VZ falls between 4.85 V and 5.36 V when tested at IZT = 50 µA and TA = 25°C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet.
What package type and dimensions does MM5Z4689T1G use?
MM5Z4689T1G uses the SOD−523 package, measuring 1.20 mm × 0.80 mm × 0.60 mm. Its mechanical outline is documented as CASE 502, STYLE 1, with cathode identified by a polarity band on terminal 1. This is verified in the Mechanical Case Outline section of the datasheet.
What is the maximum reverse leakage current for MM5Z4689T1G, and at what voltage is it specified?
The MM5Z4689T1G exhibits a maximum reverse leakage current (IR) of 10 µA at VR = 3 V, as specified in the Electrical Characteristics table. This low leakage supports energy-efficient operation in always-on sensor and battery-monitoring circuits.
Is MM5Z4689T1G suitable for automotive applications?
MM5Z4689T1G is not AEC−Q101 qualified; however, the SZMM5Z4689T1G variant is. The standard MM5Z4689T1G is intended for commercial and industrial applications, including portable electronics and IoT devices-not automotive-grade systems requiring PPAP documentation.
What is the ESD robustness rating of MM5Z4689T1G?
MM5Z4689T1G is rated Class 3 per Human Body Model (HBM), with ESD withstand capability exceeding 16 kV. This rating is explicitly stated in the Features section of the datasheet and validated per JEDEC JS-001 standards.
MM5Z4689T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
MM5Z4689T1G FAQ
1.How can I place an order for MM5Z4689T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z4689T1G 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 MM5Z4689T1G reliable?
The price and inventory of MM5Z4689T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z4689T1G is usually 5 days.
3.What payment methods are accepted for MM5Z4689T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z4689T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z4689T1G?
MM5Z4689T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z4689T1G 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 MM5Z4689T1G?
For technical support, including MM5Z4689T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z4689T1G requirements.
6.How does Aetrix verify that MM5Z4689T1G is sourced from the original manufacturer or authorized distributors?
All MM5Z4689T1G 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 MM5Z4689T1G meets industry standards.
7.What is the process for return or replacement of MM5Z4689T1G?
All MM5Z4689T1G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z4689T1G, 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 MM5Z4689T1G part is unused and in its original packaging.
Return procedure for MM5Z4689T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z4689T1G Tags
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