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Diodes Incorporated MMBZ5233BW-7-F
- Part No.:
- MMBZ5233BW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
MMBZ5233BW-7-F.pdf
- Description:
- DIODE ZENER 6V 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
MMBZ5233BW-7-F from Diodes Incorporated is a 6.0 V, 200 mW surface-mount Zener diode in SOT323 package, with ±5% tolerance (5.70–6.30 V), 7.0 Ω dynamic impedance at 20 mA test current, and ≤5.0 μA reverse leakage at 3.5 V. It provides precision voltage regulation in low-power biasing and reference circuits for automotive ECUs and industrial sensor signal conditioning.
For engineers reviewing the MMBZ5233BW-7-F datasheet, MMBZ5233BW-7-F pinout, MMBZ5233BW-7-F application, or MMBZ5233BW-7-F equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (625 °C/W), RoHS/Green compliance, AEC-Q101 qualification, and SOT323 footprint compatibility with automated assembly.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load or supply conditions. Its 200 mW power rating and 625 °C/W junction-to-ambient thermal resistance define safe operating limits on standard FR4 PCBs with recommended pad layout.
The device exhibits 7.0 Ω Zener impedance at IZT = 20 mA and ≤1600 Ω at knee current (IZK = 0.25 mA), enabling predictable regulation down to microamp-level currents. It is fully lead-free, halogen- and antimony-free, and qualified to AEC-Q101 for high-reliability automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 6.0 V nominal (5.70–6.30 V range); sets precise DC bias/reference level in analog front-ends |
| Power Dissipation | 200 mW; supports continuous operation in space-constrained PCB layouts without forced cooling |
| Zener Impedance | 7.0 Ω @ 20 mA; ensures minimal output voltage variation under load transients |
| Reverse Leakage | ≤5.0 μA @ 3.5 V; guarantees low standby current in battery-powered monitoring circuits |
| Thermal Resistance | 625 °C/W; defines maximum temperature rise per watt on standard FR4 board with AP02001 pad layout |
| Package | SOT323; 0.006 g weight, 2.10 mm × 1.30 mm footprint, compatible with high-speed pick-and-place |
| AEC-Q101 Qualified | Yes; validated for automotive under-hood and control module environments (-65°C to +150°C) |
Pinout & Package
Package: SOT323 - ultra-small plastic surface-mount case with matte tin-plated Alloy 42 leads, moisture sensitivity level 1, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground | Connected to circuit ground or lower-potential node when used in reverse-biased regulation |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Provides stable 6.0 V reference relative to anode; marked side on top view indicates cathode |
| Collector/Case (Pin 3) | Non-functional thermal pad / mechanical anchor | Not electrically connected; serves as heatsink interface and mounting fiducial for reflow alignment |
Key Features
| Feature | Design Value |
|---|---|
| Automated assembly compatibility | SOT323 package optimized for high-yield placement and reflow soldering per J-STD-020D Level 1 |
| AEC-Q101 reliability | Stress-tested for automotive temperature cycling, humidity, and mechanical shock per AEC specification |
| Green material compliance | Halogen- and antimony-free molding compound (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) |
| Low-leakage regulation | ≤5.0 μA IR at VR = 3.5 V enables use in micropower sensor bias networks |
Applications
| Automotive Engine Control Unit (ECU) Reference | Industrial Temperature Sensor Biasing |
|---|---|
Use Scenario: Providing stable 6.0 V reference for ADC input scaling in engine coolant temperature sensing circuits. IC Role / Device Role / Timing Role: Zener voltage reference for ratiometric measurement of thermistor voltage divider output. Use Value: Maintains ±0.3 V regulation over -40°C to +125°C ambient, ensuring <0.5% ADC full-scale error drift. | Use Scenario: Biasing platinum RTD bridges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision shunt reference establishing excitation current source compliance voltage. Use Value: 7.0 Ω ZZT minimizes bridge imbalance error under 1–10 mA excitation current variation. |
| USB-C Power Delivery Monitor Clamp | Medical Patient Monitor Signal Conditioning |
Use Scenario: Overvoltage clamp protecting USB-C CC line monitoring ICs during hot-plug events. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting CC line to 6.3 V peak during ESD or surge. Use Value: 200 mW rating handles 100 ns, 1 A surge pulses per Fig. 6; ≤5 μA leakage avoids false CC detection. | Use Scenario: Setting reference voltage for isolated ECG amplifier gain stages in portable patient monitors. IC Role / Device Role / Timing Role: Low-noise DC reference source for instrumentation amplifier offset calibration. Use Value: AEC-Q101 qualification ensures long-term stability and low parametric drift in clinical-grade devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2-7-F | 6.2 V nominal (±5%), 300 mW rating, same SOT323 package | Higher power margin but 0.2 V higher Zener voltage shifts reference point | Select when system requires tighter regulation margin above 6.0 V or higher transient energy handling |
| MMSZ5233T1G | 6.0 V nominal (±5%), 500 mW rating, SOD-123 package (larger footprint) | Different package requires PCB redesign; higher power dissipation capability | Choose only if thermal design demands >200 mW or existing SOD-123 layout is fixed |
Compared with BZX84-C6V2-7-F and MMSZ5233T1G, MMBZ5233BW-7-F offers optimal balance of AEC-Q101 qualification, Green compliance, and SOT323 miniaturization for space- and reliability-critical automotive and industrial designs.
Availability
MMBZ5233BW-7-F is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog input modules, USB-C power delivery protection circuits, and medical patient monitor signal conditioning requiring stable component supply and full traceability.
Supply support for MMBZ5233BW-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The MMBZ52xxBW series belongs to Diodes' AEC-Q101-qualified Zener diode product line, engineered specifically for precision voltage reference and clamping in automotive and industrial environments where reliability, small size, and regulatory compliance are mandatory.
FAQ
What is the maximum reverse voltage (VR) this Zener diode can withstand before breakdown?
The MMBZ5233BW-7-F has a nominal Zener voltage of 6.0 V with a guaranteed range of 5.70–6.30 V at 20 mA test current. Its reverse breakdown occurs within this range; it is not rated for sustained operation above 6.30 V. The absolute maximum non-repetitive peak reverse voltage is not specified separately - operation beyond the Zener range risks irreversible damage.
Is this part suitable for use in high-humidity environments like under-hood automotive applications?
Yes. The MMBZ5233BW-7-F is qualified to AEC-Q101 and packaged in UL 94V-0 mold compound with moisture sensitivity level 1 per J-STD-020D. Its matte tin-plated terminals and green molding compound resist corrosion and delamination under 85°C/85% RH stress testing, making it suitable for under-hood engine control modules.
Can this Zener diode be used in place of a 6.2 V part like MMBZ5234BW-7-F?
No - the MMBZ5233BW-7-F (6.0 V) and MMBZ5234BW-7-F (6.2 V) have distinct Zener voltage specifications and marking codes (KE3 vs. KE4). Substitution alters reference voltage by 0.2 V, potentially causing ADC scaling errors or regulator instability. Use only if system tolerance accommodates this shift and validation confirms functional equivalence.
Does this device require a heatsink for 200 mW continuous operation?
No external heatsink is required. At 200 mW dissipation and 625 °C/W thermal resistance, junction temperature rise is 125°C above ambient. With max TJ = +150°C and typical ambient ≤+25°C, operation remains within spec on FR4 PCB using Diodes' AP02001 recommended pad layout - no additional thermal management needed.
MMBZ5233BW-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3.5 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:
- SOT-323
MMBZ5233BW-7-F FAQ
1.How can I place an order for MMBZ5233BW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5233BW-7-F 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 MMBZ5233BW-7-F reliable?
The price and inventory of MMBZ5233BW-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ5233BW-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5233BW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5233BW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5233BW-7-F?
MMBZ5233BW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5233BW-7-F 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 MMBZ5233BW-7-F?
For technical support, including MMBZ5233BW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5233BW-7-F requirements.
6.How does Aetrix verify that MMBZ5233BW-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5233BW-7-F 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 MMBZ5233BW-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5233BW-7-F?
All MMBZ5233BW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5233BW-7-F, 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 MMBZ5233BW-7-F part is unused and in its original packaging.
Return procedure for MMBZ5233BW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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