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Diodes Incorporated MMSZ5232BS-7-F
- Part No.:
- MMSZ5232BS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MMSZ5232BS-7-F.pdf
- Description:
- DIODE ZENER 5.6V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:104,460
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Product details
Overview
MMSZ5232BS-7-F from Diodes Incorporated is a surface-mount 5.6 V Zener diode in SOD-323 package, rated for 200 mW power dissipation, 11 Ω zener impedance at 20 mA, and 5 µA reverse leakage at 3.0 V, used for voltage regulation and reference in low-power analog circuits.
For engineers reviewing the MMSZ5232BS-7-F datasheet, MMSZ5232BS-7-F pinout, MMSZ5232BS-7-F application, or MMSZ5232BS-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 to maintain stable voltage across its terminals under varying load or supply conditions. Its planar die construction ensures consistent breakdown characteristics and low dynamic impedance (11 Ω at IZT = 20 mA).
Designed for general-purpose voltage referencing and overvoltage clamping, it exhibits 5.0 µA maximum reverse leakage at VR = 3.0 V and supports operation from –65 °C to +150 °C ambient temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 5.6 V - precise DC reference point for biasing or regulation |
| Zener Voltage Range | 5.32–5.88 V - ±5% tolerance ensures predictable clamping threshold |
| Test Current (IZT) | 20 mA - standard operating point for specified zener voltage and impedance |
| Zener Impedance (ZZT) | 11 Ω - low dynamic resistance enables stable regulation under small-signal load variation |
| Power Dissipation (PD) | 200 mW - limits continuous current to ~35.7 mA at 5.6 V in free-air |
| Reverse Leakage (IR) | 5.0 µA @ 3.0 V - minimal parasitic current in sub-breakdown standby mode |
| Thermal Resistance (RθJA) | 625 °C/W - defines junction-to-ambient temperature rise per watt dissipated on standard FR-4 layout |
Pinout & Package
Package: SOD-323 - ultra-small plastic surface-mount case (2.30–2.70 mm length, 1.20–1.40 mm width, 0.25–0.35 mm thickness), cathode identified by band marking, compatible with reflow soldering and J-STD-020D Level 1 moisture sensitivity handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in reverse-biased configuration | Connected to lower potential node when used as shunt regulator; carries forward current during transient overvoltage events |
| Cathode | Zener breakdown terminal / high-side connection in reverse-biased configuration | Marked with band; connected to regulated voltage rail; sinks current to maintain fixed voltage drop across load |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight zener voltage distribution and repeatable breakdown characteristics across production lots |
| SOD-323 package footprint | Enables high-density PCB layouts and compatibility with standard 0805-class pick-and-place equipment |
| Lead-free & RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe meets EU Directive 2011/65/EU without post-solder contamination risk |
| Halogen- and antimony-free "Green" status | Contains <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies stringent environmental compliance for automotive and industrial end markets |
Applications
| Low-Power Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 5.6 V reference to op-amp input stages in battery-powered temperature sensors. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining constant bias point despite supply droop or load transients. Use Value: Enables <±1% measurement accuracy over –40 °C to +85 °C due to low tempco and 11 Ω dynamic impedance. |
Use Scenario: Protecting downstream USB PHY ICs from ESD-induced voltage spikes on VBUS line. IC Role / Device Role / Timing Role: Fast-acting crowbar element that conducts above 5.88 V to divert surge energy to ground. Use Value: Limits clamped voltage to ≤5.88 V with <100 ns response, preventing latch-up in 3.3 V logic interfaces. |
| Microcontroller Reset Circuit | Industrial 4–20 mA Loop Reference |
Use Scenario: Generating clean reset signal for ARM Cortex-M0+ MCU during brown-out conditions. IC Role / Device Role / Timing Role: Zener-based voltage monitor feeding comparator input to assert reset below 4.5 V. Use Value: Delivers deterministic 5.6 V threshold with ±5% tolerance, eliminating need for external precision reference IC. |
Use Scenario: Setting precise loop current zero-point in analog transmitter modules for pressure transducers. IC Role / Device Role / Timing Role: Stable voltage reference for DAC output scaling and current sense amplifier offset calibration. Use Value: Maintains 0.1% full-scale accuracy over 15-year field life due to low long-term drift and 5 µA leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V6,115 (Nexperia) | Same 5.6 V nominal, but 400 mW rating and SOD-323 package; 15 Ω ZZT at 5 mA | Higher power margin suits intermittent surge clamping; lower test current shifts operating point | Select when higher pulse energy handling is required and board space allows same footprint |
| MMBZ5232BS-7-F (Diodes Inc.) | Identical electrical specs but in SOT-23 package; 200 mW rating, same 5.6 V / 11 Ω / 5 µA | Larger pad area eases manual rework; slightly higher RθJA (~450 °C/W) improves thermal margin | Choose for prototyping or mixed-technology boards where SOT-23 is already populated |
Compared with BZX384-B5V6 and MMBZ5232BS-7-F, the MMSZ5232BS-7-F offers optimal balance of miniaturization, thermal performance on FR-4, and compatibility with high-volume SMT lines-making it preferred for space-constrained consumer and IoT designs where SOD-323 placement density is critical.
Availability
MMSZ5232BS-7-F is available at Aetrix Electronics and suitable for low-power sensor biasing, USB port protection, microcontroller reset circuits, and industrial 4–20 mA loop references requiring stable component supply and full RoHS/Green compliance.
Supply support for MMSZ5232BS-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 MMSZ52xxBS series belongs to Diodes' general-purpose Zener diode product line, engineered specifically for cost-sensitive, high-reliability voltage regulation in consumer, computing, and industrial applications where SOD-323 footprint and green compliance are mandatory.
FAQ
What is the maximum continuous reverse current this Zener can handle at 5.6 V?
At nominal 5.6 V zener voltage and 25 °C ambient, the device sustains up to 35.7 mA continuously (200 mW ÷ 5.6 V) before exceeding its power rating. Derating applies above 25 °C per the 625 °C/W thermal resistance curve; at 70 °C ambient, max current drops to ~22 mA.
Does this part meet automotive AEC-Q200 requirements?
No-MMSZ5232BS-7-F is not AEC-Q200 qualified. It is rated for industrial temperature range (–65 °C to +150 °C) and RoHS/Green compliance, but lacks the stress testing, failure analysis, and qualification documentation required for automotive-grade use.
Can this Zener be used in series to achieve higher reference voltages?
Yes-multiple MMSZ5232BS-7-F units may be stacked anode-to-cathode to sum zener voltages, but total tolerance accumulates (e.g., two in series yields 11.2 V ±10%). Thermal coupling and mismatched tempcos will degrade stability versus a single higher-voltage Zener.
Is the cathode band visible under standard optical inspection?
Yes-the cathode band is a distinct black stripe on the SOD-323 body, positioned adjacent to the anode end, and is clearly visible under 10× magnification or automated AOI systems calibrated for SMD polarity verification per IPC-A-610 Class 2 standards.
MMSZ5232BS-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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
MMSZ5232BS-7-F FAQ
1.How can I place an order for MMSZ5232BS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5232BS-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 MMSZ5232BS-7-F reliable?
The price and inventory of MMSZ5232BS-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 MMSZ5232BS-7-F is usually 5 days.
3.What payment methods are accepted for MMSZ5232BS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5232BS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5232BS-7-F?
MMSZ5232BS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5232BS-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 MMSZ5232BS-7-F?
For technical support, including MMSZ5232BS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5232BS-7-F requirements.
6.How does Aetrix verify that MMSZ5232BS-7-F is sourced from the original manufacturer or authorized distributors?
All MMSZ5232BS-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 MMSZ5232BS-7-F meets industry standards.
7.What is the process for return or replacement of MMSZ5232BS-7-F?
All MMSZ5232BS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5232BS-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 MMSZ5232BS-7-F part is unused and in its original packaging.
Return procedure for MMSZ5232BS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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