My Inquiry
My Account
onsemi MM3Z11VST1G
- Part No.:
- MM3Z11VST1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z11VST1G.pdf
- Description:
- DIODE ZENER 11V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,825
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MM3Z11VST1G from onsemi is a 11 V, ±4.5% tolerance Zener diode in SOD−323 package with 200 mW power rating, 160 Ω dynamic impedance at 5 mA, and 0.5 µA reverse leakage at 8.8 V. It provides precision voltage regulation for low-power biasing and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the MM3Z11VST1G datasheet, pinout, applications, or equivalent options, key selection criteria include its tight 11.0 V nominal Zener voltage (10.78–11.22 V), low 0.9 V forward voltage at 10 mA, ESD robustness (>16 kV HBM), Pb-free SOD−323 footprint, and thermal resistance of 635 °C/W.
Technical Context
This Zener diode operates in reverse breakdown to clamp voltage with stable regulation across temperature (5.4 mV/°C tempco) and current (IZT = 5 mA). Its 160 Ω Zener impedance at test current ensures minimal output variation under load transients.
The device uses a void-free transfer-molded plastic case rated UL 94 V−0, with cathode polarity marked by a band and solderable at 260°C for 10 seconds. It delivers 200 mW dissipation on FR-4 board at 25°C, derating linearly at 1.5 mW/°C above ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.78–11.22 V at IZT = 5 mA - defines precise clamping threshold for reference or protection circuits |
| Power Dissipation | 200 mW at TA = 25°C - supports continuous operation in low-power signal conditioning without heatsinking |
| Zener Impedance (ZZT) | 160 Ω max at IZT = 5 mA - limits voltage deviation under dynamic current changes |
| Reverse Leakage (IR) | 0.5 µA max at VR = 8.8 V - ensures minimal quiescent current in standby bias networks |
| ESD Rating | Class 3 (>16 kV HBM) - enables direct integration into handheld interfaces without external ESD protection |
| Package | SOD−323 (1.7 × 1.25 × 0.9 mm) - fits high-density PCB layouts including mobile RF modules and wearables |
| Forward Voltage | ≤0.9 V at IF = 10 mA - allows use as low-drop rectifier or logic-level clamp in dual-polarity designs |
Pinout & Package
SOD−323 surface-mount package: 2-terminal device with cathode (Pin 1, marked by band) and anode (Pin 2); body dimensions 1.7 mm × 1.25 mm × 0.9 mm; weight 4.507 mg/unit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased during Zener operation; polarity mark critical for correct PCB orientation |
| 2 | Anode | Connected to ground or lower-potential rail; completes current path during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener tolerance | ±4.5% (10.78–11.22 V) - reduces calibration overhead in precision voltage references |
| Pb-free construction | RoHS-compliant Sn-only plating - meets global environmental compliance without solderability trade-offs |
| Low profile height | 0.9 mm max - enables stacking under shields or placement beneath connectors in ultra-thin assemblies |
| High ESD immunity | >16 kV per Human Body Model - eliminates need for discrete TVS in front-end I/O protection |
| Thermal stability | 5.4 mV/°C tempco - maintains regulation accuracy across −65°C to +150°C junction range |
Applications
| Smartphone Power Management | IoT Sensor Biasing |
|---|---|
Use Scenario: Providing stable 11 V reference for ADC input scaling and LDO enable thresholds in battery-powered handsets. IC Role / Device Role / Timing Role: Voltage reference and overvoltage clamp for analog front-end protection. Use Value: Tight 11 V tolerance eliminates software trimming; SOD−323 footprint saves >0.8 mm² vs. SOT-23 in multi-rail PMIC layouts. |
Use Scenario: Biasing photodiode amplifiers and MEMS sensor bridges in compact environmental monitors. IC Role / Device Role / Timing Role: Precision DC bias source with low leakage to minimize offset drift. Use Value: 0.5 µA leakage at 8.8 V preserves nanoampere-level sensor bias accuracy; 0.9 V forward drop enables bidirectional clamp design. |
| USB-C Port Protection | Industrial PLC Input Conditioning |
Use Scenario: Clamping transient surges on CC line and VCONN supply in USB-C receptacles. IC Role / Device Role / Timing Role: Fast-response overvoltage suppressor for 5–20 V negotiation rails. Use Value: 160 Ω ZZT ensures <100 mV overshoot during 100 ns ESD events; Class 3 ESD rating covers IEC 61000-4-2 Level 4. |
Use Scenario: Regulating 12 V auxiliary supply for isolated digital I/O drivers in DIN-rail controllers. IC Role / Device Role / Timing Role: Secondary voltage stabilizer for optocoupler LED biasing. Use Value: 200 mW rating sustains continuous operation at 85°C ambient; −65°C to +150°C TJ range supports uncooled industrial enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B11,115 | 11 V, ±5%, 300 mW, SOD-323, 150 Ω ZZT @ 5 mA | Higher power rating but wider tolerance; no specified ESD rating | Preferred where higher surge energy handling is required and tighter voltage tolerance is not critical |
| MMSZ5240BT1G | 10 V, ±5%, 500 mW, SOD-123, 17 Ω ZZT @ 20 mA | Lower Zener voltage, lower impedance, larger package, higher power | Selected when lower dynamic impedance is prioritized over board area and exact 11 V regulation |
Compared with BZX384-B11,115 and MMSZ5240BT1G, the MM3Z11VST1G uniquely balances ultra-compact size, tight 11 V tolerance, and certified ESD robustness-making it optimal for miniaturized consumer and industrial edge nodes where layout area and reliability are co-constrained.
Availability
MM3Z11VST1G is available at Aetrix Electronics and suitable for smartphone power management, IoT sensor biasing, USB-C port protection, and industrial PLC input conditioning requiring stable component supply and RoHS-compliant sourcing.
Supply support for MM3Z11VST1G 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 devices.
The MM3ZxxxST1G series belongs to onsemi's precision Zener regulator portfolio, engineered specifically for space-constrained, low-power voltage reference and protection in portable and high-density electronics.
FAQ
What is the nominal Zener voltage and tolerance of MM3Z11VST1G?
The MM3Z11VST1G has a nominal Zener voltage of 11.0 V with a tolerance of ±4.5%, corresponding to a guaranteed range of 10.78 V to 11.22 V at 5 mA test current. This tight tolerance is specified per the onsemi MM3Z2V4ST1 Series datasheet Rev. 9 and enables accurate voltage setting without post-production calibration. The MM3Z11VST1G achieves this performance in the industry-standard SOD−323 package.
Does MM3Z11VST1G support Pb-free assembly processes?
Yes, MM3Z11VST1G is explicitly designated as Pb-free with Sn-only lead plating, compliant with RoHS Directive 2011/65/EU. Its SOD−323 package is qualified for reflow soldering at 260°C for 10 seconds, matching standard lead-free process profiles. The MM3Z11VST1G datasheet confirms compatibility with both SnPb and Pb-free soldering, making it suitable for mixed-technology manufacturing environments.
What is the maximum reverse leakage current for MM3Z11VST1G and at what voltage is it measured?
The MM3Z11VST1G exhibits a maximum reverse leakage current of 0.5 µA at a reverse voltage (VR) of 8.8 V, as specified in the Electrical Characteristics table of the official onsemi datasheet. This low leakage ensures minimal power loss in high-impedance bias networks and preserves accuracy in precision analog circuits. The MM3Z11VST1G maintains this performance across its full operating temperature range.
How does the thermal resistance of MM3Z11VST1G affect its power handling capability?
The MM3Z11VST1G has a junction-to-ambient thermal resistance (RJA) of 635 °C/W on FR-4 board, limiting its usable power dissipation to 200 mW at 25°C ambient and derating by 1.5 mW/°C above that temperature. This means at 85°C ambient, its safe continuous power drops to ~110 mW. The MM3Z11VST1G's small SOD−323 footprint inherently constrains thermal performance, necessitating careful thermal design in enclosed or high-temperature applications.
Is MM3Z11VST1G suitable for ESD protection in USB or audio interface circuits?
Yes, MM3Z11VST1G is rated Class 3 (>16 kV) per Human Body Model, making it suitable for primary or secondary ESD protection in USB data lines, microphone inputs, and other low-voltage analog interfaces. Its 11 V Zener voltage provides effective clamping above normal signal swing while avoiding false triggering. When used for ESD protection, the MM3Z11VST1G must be placed close to the connector with short traces to maintain effectiveness.
MM3Z11VST1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 7 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
MM3Z11VST1G FAQ
1.How can I place an order for MM3Z11VST1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z11VST1G 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 MM3Z11VST1G reliable?
The price and inventory of MM3Z11VST1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z11VST1G is usually 5 days.
3.What payment methods are accepted for MM3Z11VST1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z11VST1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z11VST1G?
MM3Z11VST1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z11VST1G 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 MM3Z11VST1G?
For technical support, including MM3Z11VST1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z11VST1G requirements.
6.How does Aetrix verify that MM3Z11VST1G is sourced from the original manufacturer or authorized distributors?
All MM3Z11VST1G 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 MM3Z11VST1G meets industry standards.
7.What is the process for return or replacement of MM3Z11VST1G?
All MM3Z11VST1G units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z11VST1G, 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 MM3Z11VST1G part is unused and in its original packaging.
Return procedure for MM3Z11VST1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM3Z11VST1G 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…
