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Diodes Incorporated MMSZ5232BSQ-7-F
- Part No.:
- MMSZ5232BSQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MMSZ5232BSQ-7-F.pdf
- Description:
- DIODE ZENER 5.6V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,966
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Product details
Overview
MMSZ5232BSQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 5.6 V breakdown voltage, 20 mA test current, 200 mW power rating, 11 Ω dynamic impedance at 20 mA, and SOD-323 package; used for precision voltage regulation and reference in low-power automotive sensor interfaces and portable power management circuits.
For engineers reviewing the MMSZ5232BSQ-7-F datasheet, MMSZ5232BSQ-7-F pinout, MMSZ5232BSQ-7-F application, or MMSZ5232BSQ-7-F equivalent, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (625 °C/W), reverse leakage (≤5 µA at 5.0 V), RoHS/PPAP compliance, and AEC-Q101 qualification for automotive use.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable voltage across load variations. Its planar die construction ensures tight VZ distribution (5.32–5.88 V) and low dynamic impedance (11 Ω at IZT = 20 mA), enabling accurate voltage clamping in feedback loops and reference nodes.
Designed for automotive-grade reliability, it meets AEC-Q101 stress testing requirements and supports PPAP documentation. The SOD-323 package enables high-density PCB layouts while maintaining thermal performance under ambient temperatures from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 5.6 V - Stable regulation point for 5 V rail monitoring and biasing |
| VZ Tolerance | ±5% (5.32–5.88 V) - Ensures predictable clamping within system margin |
| Test Current (IZT) | 20 mA - Standard operating point for specified Zener impedance and voltage |
| Zener Impedance (ZZT) | 11 Ω - Low dynamic resistance minimizes output voltage variation under load transients |
| Power Dissipation | 200 mW - Supports continuous operation on FR-4 PCB with recommended pad layout |
| Reverse Leakage (IR) | ≤5 µA at 5.0 V - Limits quiescent current in battery-powered voltage reference circuits |
| Thermal Resistance (RθJA) | 625 °C/W - Defines temperature rise per watt on standard PCB; critical for thermal derating |
Pinout & Package
Package: SOD-323 - ultra-compact surface-mount plastic case (1.30 × 1.70 × 0.95 mm), cathode band marked, moisture sensitivity level 1, lead-free matte tin plating over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-bias regulation; forms reference ground return path |
| Cathode | Zener breakdown terminal / voltage clamp input | Connected to regulated node or feedback point; carries full Zener current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control sensors and body electronics |
| Halogen- and antimony-free "Green" construction | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies strict environmental compliance programs |
| SOD-323 footprint | 0.004 g weight and 1.30 × 1.70 mm outline enable space-constrained designs like wearables and ADAS modules |
| Lead-free & RoHS 3 compliant | Fully compliant with EU Directive 2015/863/EU - supports global manufacturing and export requirements |
Applications
| Automotive Sensor Reference | Portable Device Voltage Clamp |
|---|---|
Use Scenario: Providing stable 5.6 V reference for analog front-end of tire pressure monitoring systems (TPMS). IC Role / Device Role / Timing Role: Zener voltage reference for ADC biasing and op-amp feedback networks. Use Value: Tight ±5% VZ tolerance and low 11 Ω impedance ensure consistent sensor signal scaling across temperature and supply variation. | Use Scenario: Clamping surge-induced overvoltage on USB data lines in Bluetooth earbuds. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting ESD-sensitive PHY interface pins. Use Value: 200 mW power rating and fast response enable reliable protection without latch-up in low-energy consumer devices. |
| Industrial PLC Input Protection | Medical Wearable Power Monitoring |
Use Scenario: Regulating auxiliary 5 V supply for isolated digital input conditioning in programmable logic controllers. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing optocoupler LED drive current. Use Value: Low 5 µA reverse leakage at 5.0 V minimizes standby current draw in always-on industrial control modules. | Use Scenario: Monitoring battery voltage threshold in glucose meters using resistive divider + comparator. IC Role / Device Role / Timing Role: Stable voltage reference for comparator hysteresis and threshold detection. Use Value: AEC-Q101 qualification and –65 °C to +150 °C operating range support extended field life in variable-temperature clinical environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C5V6 | Same 5.6 V nominal, but SOD-523 package (larger footprint); 300 mW rating | Higher power handling, less suitable for ultra-dense layouts | Select when higher surge energy absorption is required and board space permits |
| MMSZ5232B-7-F | Identical electrical specs, but non-automotive grade (no AEC-Q101 or PPAP) | Lacks automotive qualification; not approved for safety-critical vehicle subsystems | Select only for cost-sensitive commercial applications where automotive certification is unnecessary |
Compared with BZX584C5V6 and MMSZ5232B-7-F, the MMSZ5232BSQ-7-F uniquely combines AEC-Q101 qualification, SOD-323 compactness, and guaranteed ±5% VZ tolerance-making it the sole choice for space-constrained automotive voltage references requiring production traceability.
Availability
MMSZ5232BSQ-7-F is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable device ESD protection, and industrial PLC input conditioning requiring stable component supply, long-term lifecycle assurance, and full PPAP documentation support.
Supply support for MMSZ5232BSQ-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 MMSZ series targets high-reliability, low-power Zener regulation in automotive and industrial applications, emphasizing AEC-Q101 qualification, environmental compliance, and miniature packaging for next-generation electronics.
FAQ
What is the maximum reverse leakage current for MMSZ5232BSQ-7-F at 5.0 V?
The maximum reverse leakage current is 5 µA at VR = 5.0 V and TA = +25°C, as specified in the Electrical Characteristics table. This value remains valid up to +125°C per derating curves, making it suitable for low-quiescent-current reference designs in battery-powered systems.
Is MMSZ5232BSQ-7-F compatible with lead-free reflow soldering processes?
Yes - it features matte tin finish annealed over Alloy 42 leadframe and is rated for standard Pb-free reflow profiles (J-STD-020, peak 260°C). Its moisture sensitivity level 1 eliminates bake requirements prior to assembly, supporting high-yield automated SMT lines.
Does this Zener diode require external current-limiting resistors in typical applications?
Yes - like all Zener diodes, it requires a series current-limiting resistor to set the operating point at IZT = 20 mA and prevent thermal runaway. The resistor value is calculated using (VIN – 5.6 V)/20 mA, with power rating selected per actual dissipation.
Can MMSZ5232BSQ-7-F be used in place of a 5.1 V Zener for overvoltage protection?
No - its nominal Zener voltage is 5.6 V (range 5.32–5.88 V), which exceeds the 5.1 V threshold. Substituting it for a 5.1 V part would raise the clamping voltage by ~0.5 V, potentially allowing damaging overvoltage to reach downstream circuitry before activation.
MMSZ5232BSQ-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):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
MMSZ5232BSQ-7-F FAQ
1.How can I place an order for MMSZ5232BSQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5232BSQ-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 MMSZ5232BSQ-7-F reliable?
The price and inventory of MMSZ5232BSQ-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 MMSZ5232BSQ-7-F is usually 5 days.
3.What payment methods are accepted for MMSZ5232BSQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5232BSQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5232BSQ-7-F?
MMSZ5232BSQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5232BSQ-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 MMSZ5232BSQ-7-F?
For technical support, including MMSZ5232BSQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5232BSQ-7-F requirements.
6.How does Aetrix verify that MMSZ5232BSQ-7-F is sourced from the original manufacturer or authorized distributors?
All MMSZ5232BSQ-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 MMSZ5232BSQ-7-F meets industry standards.
7.What is the process for return or replacement of MMSZ5232BSQ-7-F?
All MMSZ5232BSQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5232BSQ-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 MMSZ5232BSQ-7-F part is unused and in its original packaging.
Return procedure for MMSZ5232BSQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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