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onsemi MM3Z11VB
- Part No.:
- MM3Z11VB
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
MM3Z11VB.pdf
- Description:
- DIODE ZENER 11V 200MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:11,133
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Product details
Overview
MM3Z11VB from onsemi is a 11 V, ±2% tolerance Zener diode in SOD−323FL package, rated for 200 mW power dissipation, 18 Ω dynamic impedance at 5 mA test current, and reverse leakage of 90 nA at 8 V, used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the MM3Z11VB datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage accuracy, low-temperature coefficient, compact SMD footprint, and stable regulation under 1–10 mA bias conditions.
Technical Context
The MM3Z11VB operates as a two-terminal voltage reference device with sharp reverse breakdown at nominal 11 V, specified under pulse test conditions (10 ms) to minimize self-heating effects. Its ±2% VZ tolerance and 18 Ω Zener impedance at IZT = 5 mA support stable regulation in feedback networks and threshold detection.
Thermal resistance of 595 °C/W and maximum junction temperature of 150 °C define its derating behavior in ambient temperatures up to +125 °C. Forward voltage is capped at 1.0 V at 10 mA, enabling bidirectional clamping when paired with series components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.78 V (min) to 11.22 V (max) at IZT = 5 mA - ensures tight 11 V reference within ±2% across production lot |
| Zener Impedance (ZZT) | 18 Ω max at IZT = 5 mA - maintains low output impedance for stable regulation under varying load |
| Power Dissipation (PD) | 200 mW at TA = 25 °C - defines maximum continuous DC power before thermal derating applies |
| Reverse Leakage (IR) | 90 nA max at VR = 8 V - enables low-error biasing in high-impedance reference nodes |
| Forward Voltage (VF) | 1.0 V max at IF = 10 mA - supports use as bidirectional clamp or ESD protection element |
| Package | SOD−323FL (Case 477AB) - 1.7 mm × 1.25 mm × 0.95 mm surface-mount outline with matte tin finish, Pb-free |
Pinout & Package
SOD−323FL is a two-terminal surface-mount package with cathode marked by a band. Terminal 1 is anode; Terminal 2 is cathode. No internal die bonding variations or multi-chip configurations are present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Current entry terminal in forward bias; reference ground node in reverse-biased regulation | Connected to system ground or lower-potential rail; determines polarity of voltage reference output |
| 2 (Cathode) | Current exit terminal in forward bias; regulated output node in reverse bias | Provides stable 11 V referenced to anode; must be decoupled with capacitor for noise-sensitive applications |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables direct replacement in 11 V reference designs without recalibration or resistor trimming |
| Low dynamic impedance (18 Ω) | Minimizes output voltage shift under 1–10 mA load variation, critical for ADC reference buffers |
| SOD−323FL ultra-small footprint | Reduces PCB area by >50% vs. SOD-123; compatible with fine-pitch automated placement |
| Pb-free matte tin finish | Meets RoHS/REACH requirements without solderability compromise or whisker risk |
| 150 °C maximum junction temperature | Supports operation in sealed industrial enclosures or near heat-generating ICs without derating |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation modules. IC Role / Device Role / Timing Role: Zener reference providing fixed 11 V bias to Wheatstone bridge, rejecting supply ripple. Use Value: ±2% VZ tolerance and 18 Ω ZZT ensure <0.1% full-scale error drift over 0–70 °C operating range. |
Use Scenario: Generating precise 11 V auxiliary rail for USB-C PD controller VCONN monitoring circuitry. IC Role / Device Role / Timing Role: Low-current voltage reference feeding comparator input for VCONN presence detection. Use Value: 90 nA leakage at 8 V prevents false triggering during low-power suspend states. |
| Medical Wearable Battery Monitor | Automotive Cabin Control Panel |
|
Use Scenario: Supplying reference voltage to lithium-ion cell voltage measurement ADC in hearable devices. IC Role / Device Role / Timing Role: Precision shunt reference replacing larger TL431-based solutions in space-constrained PCBs. Use Value: SOD−323FL footprint allows integration into 0.4 mm pitch flex-rigid assemblies without rework risk. |
Use Scenario: Regulating 11 V rail for touch controller IC in automotive HVAC interface panels. IC Role / Device Role / Timing Role: Overvoltage clamp and stable bias source protecting I/O pins against load dump transients. Use Value: 200 mW rating and 595 °C/W RJA enable sustained operation at 85 °C ambient with no heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B11 | Same 11 V ±2%, but SOD-323 package (not FL variant); 250 mW rating; higher ZZT (25 Ω) | Larger thermal resistance (625 °C/W); less suitable for high-density layouts requiring minimal height | Prefer MM3Z11VB where board height < 1.0 mm or thermal margin is constrained |
| MMSZ5240B | 10 V nominal, ±5% tolerance; SOD-123 package; 500 mW rating; ZZT = 17 Ω at 20 mA | Looser voltage accuracy; higher power handling; incompatible for 11 V–specific feedback loops | Select MM3Z11VB when exact 11 V ±2% regulation is required and space is limited |
Compared with BZX384-B11 and MMSZ5240B, the MM3Z11VB delivers tighter voltage accuracy in a lower-profile, thermally optimized package-making it optimal for miniaturized, temperature-stable reference designs where 11 V is mandatory.
Availability
MM3Z11VB is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power delivery subsystems, and medical wearable battery monitoring requiring stable component supply and long-term manufacturability.
Supply support for MM3Z11VB 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 MM3Z11VB belongs to the MM3Z2V4B–MM3Z75VB Zener diode family, engineered for high-accuracy, low-power voltage reference and regulation in space-constrained, thermally demanding environments.
FAQ
What is the Zener voltage tolerance of the MM3Z11VB?
The MM3Z11VB has a guaranteed ±2% Zener voltage tolerance, meaning its breakdown voltage is tightly controlled between 10.78 V and 11.22 V at the test current of 5 mA. This tolerance is confirmed per the onsemi datasheet revision 3 (August 2023) and applies across the full operating temperature range of −65 °C to +150 °C. The MM3Z11VB achieves this via laser-trimmed silicon process control, not post-package sorting.
Can the MM3Z11VB be used in place of a 10 V Zener diode like the MM3Z10VB?
No-the MM3Z11VB is not a functional substitute for the MM3Z10VB because its nominal Zener voltage is 11 V (10.78–11.22 V), whereas the MM3Z10VB is 10 V (9.80–10.20 V). Using MM3Z11VB in a 10 V feedback loop would cause systematic 10% output error. The MM3Z11VB must only be selected where the design specifically requires 11 V regulation or clamping.
What is the maximum continuous reverse current the MM3Z11VB can handle?
The MM3Z11VB's maximum continuous reverse (Zener) current is derived from its 200 mW power rating and nominal 11 V breakdown: IZM = PD/VZ ≈ 18.2 mA. However, the datasheet specifies IZT = 5 mA as the standard test condition, and operation above 10 mA requires thermal derating per the 595 °C/W RJA. Sustained currents >15 mA are not recommended without board-level thermal enhancement.
Does the MM3Z11VB have a specified temperature coefficient?
While the onsemi datasheet does not list a single numeric temperature coefficient (TC) for the MM3Z11VB, Figure 5 shows VZ variation across −25 °C to +125 °C is ≤ ±0.3 V - corresponding to a worst-case TC of ~240 ppm/°C. This is consistent with 11 V Zeners in the MM3Z series, which exhibit lower TC than lower-voltage variants due to dominant avalanche breakdown mechanism.
Is the MM3Z11VB suitable for ESD protection applications?
The MM3Z11VB is not designed or characterized for ESD protection. Its 200 mW power rating and 10 ms pulse test condition indicate it is optimized for steady-state regulation-not transient surge absorption. For ESD clamping, dedicated TVS diodes such as the ESD5Z series offer faster response, higher peak power, and defined IEC 61000-4-2 ratings. The MM3Z11VB may conduct during overvoltage events but lacks validated ESD robustness data.
MM3Z11VB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 18 Ohms
- Current - Reverse Leakage @ Vr:
- 900 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
MM3Z11VB FAQ
1.How can I place an order for MM3Z11VB through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z11VB 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 MM3Z11VB reliable?
The price and inventory of MM3Z11VB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z11VB is usually 5 days.
3.What payment methods are accepted for MM3Z11VB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z11VB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z11VB?
MM3Z11VB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z11VB 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 MM3Z11VB?
For technical support, including MM3Z11VB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z11VB requirements.
6.How does Aetrix verify that MM3Z11VB is sourced from the original manufacturer or authorized distributors?
All MM3Z11VB 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 MM3Z11VB meets industry standards.
7.What is the process for return or replacement of MM3Z11VB?
All MM3Z11VB units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z11VB, 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 MM3Z11VB part is unused and in its original packaging.
Return procedure for MM3Z11VB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM3Z11VB Tags
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