My Inquiry
My Account
onsemi MM5Z4680T1G
- Part No.:
- MM5Z4680T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z4680T1G.pdf
- Description:
- DIODE ZENER 2.2V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:5,940
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MM5Z4680T1G from onsemi is a 2.2 V nominal Zener voltage regulator diode in SOD−523 package, rated for 500 mW power dissipation at 75°C, with 50 μA test current (IZT), 4 μA reverse leakage at 1 V (IR), and ±5% Zener voltage tolerance. It provides precision low-voltage regulation in space-constrained portable electronics such as smartphone power rail clamping and battery voltage monitoring circuits.
For engineers reviewing the MM5Z4680T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 2.2 V nominal Zener voltage, 50 μA IZT, 4 μA IR @ 1 V, SOD−523 footprint compatibility, and Class 3 ESD rating (>16 kV HBM).
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load and input conditions. Its 2.2 V nominal Zener voltage is specified at IZT = 50 μA and TL = 30°C, with temperature coefficient optimized for low-drift performance in the 2–3 V range.
The device uses a silicon planar Zener structure in a void-free thermosetting plastic SOD−523 case, rated for −55°C to +150°C junction temperature, 260°C soldering tolerance, and UL 94 V−0 flammability compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.09 V (min) to 2.31 V (max) at IZT = 50 μA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 500 mW on FR−5 board at TL = 75°C - sets maximum continuous thermal load before derating applies |
| Reverse Leakage (IR) | 4 μA max at VR = 1 V - ensures minimal standby current in voltage-clamp or reference applications |
| ESD Rating | Class 3 (>16 kV) per HBM - enables robust handling in automated assembly and end-use environments |
| Package | SOD−523 (1.20 × 0.80 × 0.60 mm) - supports high-density PCB layouts and fine-pitch reflow processes |
| Junction Temp Range | −55°C to +150°C - allows operation in automotive cabin, industrial control, and portable device thermal profiles |
Pinout & Package
SOD−523 surface-mount package with cathode indicated by polarity band; 2-terminal configuration optimized for automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low IZT test current | 50 μA enables stable regulation in ultra-low-power sensor bias and microcontroller reset circuits |
| Pb−Free & RoHS compliant | Meets global environmental compliance requirements without compromising electrical performance |
| Small outline package | SOD−523 footprint saves >60% board area vs. SOD−123, critical for compact mobile PCBs |
| High ESD immunity | Class 3 HBM (>16 kV) eliminates need for external ESD protection in handheld interface lines |
Applications
| Battery Voltage Monitoring | Microcontroller Reset Clamping |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging in wearables and Bluetooth earbuds. IC Role / Device Role / Timing Role: Zener diode acts as precision voltage clamp to protect ADC input or comparator reference node. Use Value: 2.2 V nominal Zener voltage matches common 2.5 V or 3.3 V rail scaling ratios, enabling accurate 1:1 or 2:1 resistive dividers without trimming. |
Use Scenario: Stabilizing reset threshold for low-voltage microcontrollers (e.g., ARM Cortex-M0+) in IoT edge nodes. IC Role / Device Role / Timing Role: Provides fixed reference voltage to external reset supervisor IC or internal brown-out detector. Use Value: Tight ±5% VZ tolerance and low 4 μA IR ensure predictable reset assertion timing across temperature and supply variations. |
| USB Port ESD Protection | RF Front-End Bias Reference |
|
Use Scenario: Secondary clamping element alongside TVS diodes on USB 2.0 D+/D− lines in portable accessories. IC Role / Device Role / Timing Role: Low-leakage Zener absorbs residual transients after primary TVS conduction, preventing latch-up. Use Value: Class 3 HBM rating and 2.2 V clamping level protect 1.8 V/3.3 V PHY interfaces without forward conduction during normal signaling. |
Use Scenario: Generating stable bias voltage for LNA or mixer stages in sub-GHz ISM band transceivers. IC Role / Device Role / Timing Role: Supplies low-noise DC bias point independent of main supply ripple or load transients. Use Value: Low 50 μA IZT and minimal capacitance (<2 pF typical at 0 V bias) avoid signal path loading or phase noise degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C2V2 | 2.2 V nominal, SOD−323 package (1.7 × 1.3 mm), 200 mW rating, 5 μA IR @ 1 V | Lower power rating and larger footprint limit use in ultra-thin devices and high-density layouts | Select when legacy SOD−323 footprint compatibility is required and thermal load remains below 200 mW |
| MMSZ4680T1G | 2.2 V nominal, SOD−123 package (3.7 × 1.6 mm), 500 mW rating, 4 μA IR @ 1 V, same Zener spec | Larger size increases board area usage but improves thermal margin and manual handling | Choose for prototyping, repair, or designs where SOD−123 is already standardized and space is not constrained |
Compared with BZX584C2V2 and MMSZ4680T1G, MM5Z4680T1G delivers identical 2.2 V regulation with superior space efficiency (SOD−523), matching leakage and power specs while enabling next-generation miniaturized PCBs.
Availability
MM5Z4680T1G is available at Aetrix Electronics and suitable for battery management systems, microcontroller reset circuits, USB interface protection, and RF bias networks requiring stable component supply with tight Zener voltage tolerance and high ESD resilience.
Supply support for MM5Z4680T1G 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 focused on energy-efficient electronics, delivering discrete, analog, logic, and custom devices for automotive, industrial, cloud, and consumer markets.
The MM5Z4xxxTxG series is designed specifically for space-constrained voltage regulation and transient suppression in portable and high-density electronics, emphasizing low IZT, small footprint, and robust ESD performance.
FAQ
What is the nominal Zener voltage of MM5Z4680T1G and how is it tested?
The MM5Z4680T1G has a nominal Zener voltage of 2.2 V, measured at a test current (IZT) of 50 μA with the device junction at thermal equilibrium at TL = 30°C ±1°C. The guaranteed range is 2.09 V (min) to 2.31 V (max), reflecting ±5% tolerance. This specification ensures consistent voltage reference behavior in low-current regulation applications such as microcontroller reset circuits and sensor biasing where MM5Z4680T1G is commonly deployed.
What package type does MM5Z4680T1G use and what are its key mechanical dimensions?
MM5Z4680T1G uses the SOD−523 surface-mount package (Case 502, Style 1), measuring 1.20 mm × 0.80 mm × 0.60 mm. It features a cathode polarity band on terminal 1 and is optimized for automated board assembly. The package is void-free, transfer-molded, thermosetting plastic with UL 94 V−0 flammability rating and 260°C soldering tolerance for 10 seconds - all confirmed in the official onsemi datasheet for MM5Z4680T1G.
How much reverse leakage current does MM5Z4680T1G exhibit at 1 V reverse bias?
MM5Z4680T1G exhibits a maximum reverse leakage current (IR) of 4 μA at VR = 1 V, as specified in the Electrical Characteristics table on page 3 of the onsemi datasheet. This low leakage supports energy-efficient operation in always-on monitoring circuits and ensures minimal error contribution when used as a reference in high-impedance divider networks - a key design advantage of MM5Z4680T1G over higher-leakage alternatives.
Is MM5Z4680T1G suitable for automotive applications?
MM5Z4680T1G itself is not AEC−Q101 qualified; however, the automotive-grade variant SZMM5Z4680T1G is explicitly listed as AEC−Q101 qualified and PPAP capable in the same datasheet. For non-automotive applications such as consumer portables and industrial controls, MM5Z4680T1G meets all electrical, thermal, and reliability requirements - but designers requiring automotive qualification must specify the SZ prefix version of MM5Z4680T1G.
What is the maximum power dissipation rating for MM5Z4680T1G and how does it derate with temperature?
MM5Z4680T1G is rated for 500 mW total power dissipation on FR−5 board at TL = 75°C, with linear derating of 4.0 mW/°C above that temperature. This derating curve ensures safe operation up to +150°C junction temperature. The thermal resistance (RJA) is 250°C/W, meaning ambient temperature rise directly impacts usable power - a critical consideration in sealed enclosures where MM5Z4680T1G may be deployed for voltage stabilization.
MM5Z4680T1G 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):
- 2.2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 4 µA @ 1 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
MM5Z4680T1G FAQ
1.How can I place an order for MM5Z4680T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z4680T1G 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 MM5Z4680T1G reliable?
The price and inventory of MM5Z4680T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z4680T1G is usually 5 days.
3.What payment methods are accepted for MM5Z4680T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z4680T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z4680T1G?
MM5Z4680T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z4680T1G 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 MM5Z4680T1G?
For technical support, including MM5Z4680T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z4680T1G requirements.
6.How does Aetrix verify that MM5Z4680T1G is sourced from the original manufacturer or authorized distributors?
All MM5Z4680T1G 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 MM5Z4680T1G meets industry standards.
7.What is the process for return or replacement of MM5Z4680T1G?
All MM5Z4680T1G units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z4680T1G, 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 MM5Z4680T1G part is unused and in its original packaging.
Return procedure for MM5Z4680T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z4680T1G Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
