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onsemi MM3Z3V6ST1
- Part No.:
- MM3Z3V6ST1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z3V6ST1.pdf
- Description:
- DIODE ZENER 3.6V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,596
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Product details
Overview
MM3Z3V6ST1 from onsemi is a 3.6 V ±3.5% Zener diode in SOD−323 package, rated for 200 mW steady-state power dissipation, 90 Ω maximum Zener impedance at 5 mA test current, and 1.0 µA reverse leakage at 1.0 V, designed for precision voltage regulation in space-constrained portable electronics.
For engineers reviewing the MM3Z3V6ST1 datasheet, pinout, applications, or equivalent options, key selection criteria include tight 3.6 V Zener tolerance, low 0.9 mm body height, ESD robustness (>16 kV HBM), thermal resistance of 635 °C/W, and compatibility with high-density PCB layouts requiring minimal footprint.
Technical Context
This Zener regulator operates in reverse breakdown mode to clamp voltage across sensitive circuit nodes. It delivers stable reference voltage under controlled current conditions (IZT = 5 mA), with dynamic impedance (ZZT) ≤ 90 Ω ensuring minimal output variation during transient load shifts.
Its thermal design supports operation from −65 °C to +150 °C junction temperature, and its SOD−323 package enables reflow soldering at 260 °C for 10 seconds. The cathode band marking and Pb-free plating (Sn-only option available) align with modern assembly and compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.60–3.85 V at 5 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation PD | 200 mW @ 25°C - sets maximum continuous power handling before thermal derating |
| Zener Impedance ZZT | ≤90 Ω @ IZT = 5 mA - ensures low AC impedance for stable regulation under ripple |
| Reverse Leakage IR | ≤1.0 µA @ VR = 1.0 V - minimizes standby current in battery-powered systems |
| Temp Coefficient dVZ/dT | −3.5 mV/°C - quantifies voltage drift with temperature for accuracy-critical references |
| Capacitance C | 450 pF @ 0 V, 1 MHz - impacts high-frequency noise filtering capability |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust handling during board assembly and field operation |
Pinout & Package
SOD−323 surface-mount package: 1.7 mm × 1.25 mm body, 0.9 mm height, cathode indicated by polarity band. Weight: 4.507 mg/unit. UL 94 V−0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener anode connection point | Connected to regulated node; voltage referenced to this terminal during breakdown |
| 2 (Anode) | Zener cathode connection point | Typically tied to ground or lower potential; completes reverse-bias path |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener tolerance | ±3.5% at 3.6 V - enables accurate voltage clamping without post-production trimming |
| Low-profile packaging | 0.9 mm max height - fits beneath stacked components and in ultra-thin handheld enclosures |
| High ESD immunity | >16 kV HBM - eliminates need for external ESD protection in many consumer interfaces |
| Pb-free plating option | Sn-only lead finish - satisfies RoHS and JEDEC J-STD-020 reflow compatibility requirements |
| Thermal stability | −65 °C to +150 °C operating range - supports automotive cabin and industrial ambient environments |
Applications
| Smartphone Power Rail Protection | USB Interface Voltage Clamp |
|---|---|
Use Scenario: Protecting 3.3 V I/O lines in smartphone application processors from ESD and supply transients. IC Role / Device Role / Timing Role: Zener clamping diode placed between signal line and ground to shunt overvoltage energy. Use Value: Leverages 3.6 V nominal Zener voltage and >16 kV HBM rating to absorb IEC 61000-4-2 level 4 surges without upstream TVS. | Use Scenario: Stabilizing USB data line reference voltage in portable OTG accessories. IC Role / Device Role / Timing Role: Precision voltage reference for USB PHY biasing and common-mode control. Use Value: Tight ±3.5% tolerance ensures consistent D+/D− common-mode voltage within USB 2.0 spec limits. |
| Wearable Sensor Biasing | Industrial PLC Input Conditioning |
Use Scenario: Providing stable 3.6 V bias to MEMS accelerometer analog front-end in fitness trackers. IC Role / Device Role / Timing Role: Low-noise voltage reference source for sensor excitation and ADC reference scaling. Use Value: 450 pF capacitance and 90 Ω dynamic impedance minimize noise coupling into high-gain sensor paths. | Use Scenario: Clamping 24 V DC input signals down to safe logic levels for microcontroller GPIOs in factory automation modules. IC Role / Device Role / Timing Role: Primary overvoltage limiter in discrete input protection stage. Use Value: 200 mW power rating and 635 °C/W thermal resistance allow sustained operation under repeated 30 V surge events. |
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-B3V6,115 | Same 3.6 V nominal Zener, but SOD-323 package with ±5% tolerance and 100 Ω ZZT | Higher impedance and looser tolerance reduce regulation accuracy in precision biasing | Acceptable where cost sensitivity outweighs voltage stability requirements |
| MMSZ3V6ET1G | Identical 3.6 V rating and SOD-123 package; 200 mW rating but larger 2.9 mm × 1.3 mm footprint | Larger size limits use in ultra-dense portable PCBs; same thermal resistance (635 °C/W) | Preferred when existing layout accommodates SOD-123 and higher mechanical robustness is needed |
Compared with MM3Z3V6ST1, BZX384-B3V6,115 offers lower unit cost but sacrifices 1.5% tolerance and 10 Ω impedance performance; MMSZ3V6ET1G matches electrical specs closely but requires PCB redesign due to larger SOD-123 footprint and different mounting geometry.
Availability
MM3Z3V6ST1 is available at Aetrix Electronics and suitable for smartphone power rail protection, USB interface voltage clamp, and wearable sensor biasing requiring stable component supply across high-mix, low-volume production runs.
Supply support for MM3Z3V6ST1 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 edge applications.
The MM3ZxxxST1 series targets compact, high-reliability voltage regulation in portable and space-constrained electronics, emphasizing tight tolerance, low profile, and robust ESD performance.
FAQ
What is the Zener voltage tolerance of MM3Z3V6ST1?
The MM3Z3V6ST1 has a specified Zener voltage range of 3.60 V to 3.85 V at 5 mA test current, corresponding to a ±3.5% tolerance around the nominal 3.6 V value. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of the official datasheet and enables reliable voltage clamping without calibration in production systems using MM3Z3V6ST1.
Can MM3Z3V6ST1 be used in place of a 3.3 V Zener diode?
No - MM3Z3V6ST1 is specifically rated for 3.6 V nominal Zener voltage and is not interchangeable with 3.3 V devices like MM3Z3V3ST1. Substituting MM3Z3V6ST1 for a 3.3 V part would raise the clamping threshold by ~300 mV, potentially allowing damaging overvoltage to reach downstream circuitry before regulation engages.
What is the maximum reverse leakage current for MM3Z3V6ST1?
The maximum reverse leakage current for MM3Z3V6ST1 is 1.0 µA at VR = 1.0 V, as specified in the Electrical Characteristics table. This low leakage supports extended battery life in always-on wearable and IoT applications where MM3Z3V6ST1 serves as a reference or protection element.
Is MM3Z3V6ST1 compatible with lead-free reflow soldering processes?
Yes - MM3Z3V6ST1 supports lead-free reflow soldering with a maximum case temperature of 260 °C for 10 seconds, per the Mechanical Characteristics section. Its Pb-free variant MM3Z3V6ST1G uses Sn-only plating and meets JEDEC J-STD-020 moisture sensitivity level 1, making MM3Z3V6ST1 suitable for standard Pb-free assembly lines.
Does MM3Z3V6ST1 have a defined forward voltage specification?
Yes - the forward voltage VF of MM3Z3V6ST1 is specified as ≤ 0.9 V at IF = 10 mA, consistent across the MM3Z2V4ST1 series. This parameter is relevant when the device is used in forward conduction mode, such as in polarity protection circuits or dual-direction clamping configurations involving MM3Z3V6ST1.
MM3Z3V6ST1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±3%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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-323
MM3Z3V6ST1 FAQ
1.How can I place an order for MM3Z3V6ST1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z3V6ST1 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 MM3Z3V6ST1 reliable?
The price and inventory of MM3Z3V6ST1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z3V6ST1 is usually 5 days.
3.What payment methods are accepted for MM3Z3V6ST1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z3V6ST1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z3V6ST1?
MM3Z3V6ST1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z3V6ST1 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 MM3Z3V6ST1?
For technical support, including MM3Z3V6ST1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z3V6ST1 requirements.
6.How does Aetrix verify that MM3Z3V6ST1 is sourced from the original manufacturer or authorized distributors?
All MM3Z3V6ST1 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 MM3Z3V6ST1 meets industry standards.
7.What is the process for return or replacement of MM3Z3V6ST1?
All MM3Z3V6ST1 units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z3V6ST1, 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 MM3Z3V6ST1 part is unused and in its original packaging.
Return procedure for MM3Z3V6ST1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM3Z3V6ST1 Tags
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