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Diodes Incorporated MMSZ5233BS-7-F
- Part No.:
- MMSZ5233BS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MMSZ5233BS-7-F.pdf
- Description:
- DIODE ZENER 6V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,788
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Product details
Overview
MMSZ5233BS-7-F from Diodes Incorporated is a surface-mount 6.0 V Zener diode in SOD-323 package, rated for 200 mW power dissipation, 7 Ω dynamic impedance at 20 mA test current, and maximum 5.0 µA reverse leakage at 3.5 V, used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the MMSZ5233BS-7-F datasheet, MMSZ5233BS-7-F pinout, MMSZ5233BS-7-F application, or MMSZ5233BS-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±5%), thermal resistance (625 °C/W), cathode-band polarity marking, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. It features planar die construction for consistent parametric performance and low leakage, with a specified test current of 20 mA and knee current of 0.25 mA.
The device exhibits 7 Ω Zener impedance at IZT = 20 mA and 1600 Ω at IZK = 0.25 mA, enabling predictable regulation in both high- and low-current biasing configurations. Its 625 °C/W junction-to-ambient thermal resistance assumes mounting on standard FR-4 with recommended pad layout per AP02001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 6.0 V nominal, 5.70–6.30 V range at 20 mA - defines regulated output voltage with ±5% tolerance |
| Power Dissipation | 200 mW maximum - limits continuous operating current to ~33 mA at 6 V without derating |
| Zener Impedance | 7 Ω at 20 mA - ensures tight voltage regulation under moderate load variation |
| Reverse Leakage | 5.0 µA max at 3.5 V - guarantees minimal quiescent current in standby or sensing circuits |
| Thermal Resistance | 625 °C/W - requires thermal-aware PCB layout to sustain full power at ambient up to +125°C |
| Package | SOD-323 - 1.2–1.4 mm body width, 2.3–2.7 mm length, compatible with 0805 footprint and pick-and-place |
Pinout & Package
Package: SOD-323 surface-mount plastic case with cathode band marking; dimensions: 2.3–2.7 mm × 1.2–1.4 mm × 0.25–0.35 mm height; weight ≈ 0.004 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in regulation circuit; forms reference ground return path |
| Cathode | Reverse breakdown terminal / Zener voltage output node | Marked with band; supplies regulated 6.0 V when biased above breakdown with series resistor |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and low parameter drift over time and temperature |
| SOD-323 package | Enables high-density PCB layouts and compatibility with standard 0805 reflow profiles |
| Lead-free & RoHS-compliant | Meets EU Directive 2011/65/EU with matte tin plating; no added lead, halogen, or antimony |
| Moisture sensitivity Level 1 | Eliminates bake requirement prior to reflow; safe for standard SMT assembly without dry-pack handling |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 6.0 V reference for ADC voltage dividers and op-amp bias networks in battery-powered sensors. IC Role / Device Role / Timing Role: Voltage reference element establishing precise analog input scaling point. Use Value: ±5% Zener tolerance and 7 Ω impedance ensure <±10 mV error contribution under 1 mA load variation. |
Use Scenario: Protecting microcontroller GPIO pins from transient surges exceeding 6.2 V in industrial I/O modules. IC Role / Device Role / Timing Role: Shunt clamping device diverting excess current when input exceeds 6.3 V. Use Value: 200 mW rating supports 33 mA clamping current; 5 µA leakage avoids signal loading at 3.3 V logic levels. |
| Signal Level Translation | Current Source Bias |
Use Scenario: Converting 12 V control signals to 6 V logic-compatible levels in automotive body control units. IC Role / Device Role / Timing Role: Passive level-shifting node using Zener forward drop and reverse clamp. Use Value: 0.9 V forward voltage at 10 mA enables bidirectional translation; SOD-323 allows placement adjacent to connectors. |
Use Scenario: Setting bias current for low-noise JFET amplifiers in audio front-end stages. IC Role / Device Role / Timing Role: Stable current source element via constant-voltage drop across series resistor. Use Value: 625 °C/W thermal resistance permits stable operation at 70°C ambient without derating below 150 µA bias current. |
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-B6V2,115 (Nexperia) | 6.2 V nominal, ±5% tolerance, 300 mW rating, SOD-323 package | Higher power rating allows higher clamping energy; slightly higher Zener voltage shifts reference by +200 mV | Select when 6.2 V reference aligns with system tolerance stack-up and surge energy exceeds 200 mW capability |
| MMBZ5233BS-7-F (Diodes Inc.) | Identical electrical specs and marking code E3, but in SOT-23 package (larger footprint, higher RθJA) | SOT-23 offers easier manual prototyping and higher thermal mass; less suitable for ultra-dense layouts | Choose for hand-soldered prototypes or where board space permits larger package and improved thermal margin is needed |
Compared with BZX384-B6V2,115 and MMBZ5233BS-7-F, the MMSZ5233BS-7-F delivers identical 6.0 V regulation in the smallest SOD-323 footprint with lowest thermal resistance among SOD-323 Zeners, making it optimal for space-constrained, low-power reference designs requiring tight voltage accuracy.
Availability
MMSZ5233BS-7-F is available at Aetrix Electronics and suitable for precision voltage reference, overvoltage protection, signal level translation, and low-current biasing applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for MMSZ5233BS-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, specializing in high-reliability, industry-standard components for power management, signal integrity, and protection.
The MMSZ52xxBS series targets cost-sensitive, high-volume applications requiring stable Zener references in compact SMD packages, with design emphasis on manufacturability, thermal performance, and environmental compliance.
FAQ
What is the maximum continuous reverse voltage that can be safely applied to MMSZ5233BS-7-F?
The device is rated for 3.5 V reverse voltage at which leakage remains ≤5.0 µA; applying higher reverse bias risks excessive leakage or thermal runaway. For reliable regulation, operate only within the 5.70–6.30 V Zener range at IZ ≥ 1 mA, with series current limiting to keep power ≤200 mW.
How does the SOD-323 package affect thermal performance compared to larger Zener packages?
With RθJA = 625 °C/W, the SOD-323 package dissipates heat less efficiently than SOT-23 (typically ~300 °C/W) or DO-35 (≈200 °C/W). Full 200 mW operation requires ambient ≤+125°C or PCB copper pour; derating is essential above +70°C ambient.
Can MMSZ5233BS-7-F be used in place of a 6.2 V Zener like MMSZ5234BS-7-F?
No - the 6.0 V nominal voltage differs by 200 mV from the 6.2 V part, exceeding typical system reference tolerance budgets. Substitution alters regulation point, potentially causing ADC scaling errors or comparator trip-point shifts; verify circuit margin before interchange.
Is the cathode band orientation consistent across all SOD-323 Zener diodes from Diodes Incorporated?
Yes - the cathode band is always located at the end of the SOD-323 package opposite the anode, aligned with the flat edge shown in AP02002 outline drawing. Visual inspection under magnification confirms polarity; no exceptions exist within the MMSZ52xxBS family.
MMSZ5233BS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-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:
- SOD-323
MMSZ5233BS-7-F FAQ
1.How can I place an order for MMSZ5233BS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5233BS-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 MMSZ5233BS-7-F reliable?
The price and inventory of MMSZ5233BS-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 MMSZ5233BS-7-F is usually 5 days.
3.What payment methods are accepted for MMSZ5233BS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5233BS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5233BS-7-F?
MMSZ5233BS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5233BS-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 MMSZ5233BS-7-F?
For technical support, including MMSZ5233BS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5233BS-7-F requirements.
6.How does Aetrix verify that MMSZ5233BS-7-F is sourced from the original manufacturer or authorized distributors?
All MMSZ5233BS-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 MMSZ5233BS-7-F meets industry standards.
7.What is the process for return or replacement of MMSZ5233BS-7-F?
All MMSZ5233BS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5233BS-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 MMSZ5233BS-7-F part is unused and in its original packaging.
Return procedure for MMSZ5233BS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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