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Diodes Incorporated MMBZ5232BQ-7-F
- Part No.:
- MMBZ5232BQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ5232BQ-7-F.pdf
- Description:
- DIODE ZENER 5.6V 350MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:9,220
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Product details
Overview
MMBZ5232BQ-7-F from Diodes Incorporated is a 5.6 V, 350 mW surface-mount Zener diode in SOT23 package, rated for 20 mA test current, 11 Ω dynamic impedance at 1 kHz, and 5 µA reverse leakage at 3.0 V, used for precision voltage regulation and overvoltage protection in low-power analog circuits.
For engineers reviewing the MMBZ5232BQ-7-F datasheet, MMBZ5232BQ-7-F pinout, MMBZ5232BQ-7-F application, or MMBZ5232BQ-7-F equivalent, key selection criteria include zener voltage tolerance (±5%), thermal resistance (357 °C/W), JEDEC-compliant reliability, and automotive-grade qualification status (Q-suffix variants only).
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics and low parameter drift across production lots.
Designed for automated SMT assembly on FR-4 PCBs, it delivers 350 mW power dissipation with defined derating above +25°C ambient and supports operation from –65°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal, 5.32–5.88 V range at 20 mA - defines regulated output voltage tolerance for reference design. |
| Power Dissipation (PD) | 350 mW on FR-4 board - sets maximum continuous power handling without heatsinking. |
| Zener Impedance (ZZT) | 11 Ω at 1 kHz, 20 mA - indicates regulation stiffness; lower value improves line/load regulation. |
| Reverse Leakage (IR) | 5 µA max at 3.0 V - determines minimum bias current needed to avoid premature conduction in standby. |
| Thermal Resistance (RθJA) | 357 °C/W - quantifies junction-to-ambient temperature rise per watt; critical for thermal margin calculation. |
| Operating Temperature | –65°C to +150°C - enables use in extended industrial and under-hood automotive environments. |
Pinout & Package
Package: SOT23 - three-terminal surface-mount plastic package with matte tin-plated Alloy 42 leadframe, UL 94V-0 rated molding compound, and moisture sensitivity level 1.
| 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 as shunt regulator. |
| Cathode (Pin 2) | Zener breakdown terminal / voltage reference output | Connected to input supply via current-limiting resistor; provides regulated 5.6 V to load. |
| No-Connect (Pin 3) | Unused internal tie | Electrically isolated; no external connection required - standard SOT23 mechanical support pin. |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight VZ distribution and long-term stability under thermal cycling. |
| 350 mW FR-4 power rating | Enables direct integration into compact PCB layouts without auxiliary cooling. |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br+Cl and <1000 ppm Sb - suitable for green manufacturing. |
| JEDEC high-reliability qualification | Validated per AEC-Q standards for mission-critical applications requiring proven field reliability. |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 5.6 V reference for ADC biasing or op-amp feedback networks in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining accuracy within ±5% across temperature and load variation. Use Value: Eliminates need for dedicated voltage reference IC, reducing BOM count and PCB area in space-constrained designs. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced transients exceeding 3.0 V during hot-plug events. IC Role / Device Role / Timing Role: Fast-acting clamping device diverting surge current away from sensitive inputs. Use Value: Limits voltage excursion to ≤5.88 V at 20 mA, preventing latch-up or gate oxide damage in 3.3 V logic interfaces. |
| Signal Level Translation | Current Source Biasing |
|
Use Scenario: Converting 12 V automotive signals to 5.6 V logic-compatible levels for interface with legacy CAN transceivers. IC Role / Device Role / Timing Role: Passive level-shifter using Zener forward drop (~0.9 V) and reverse breakdown (5.6 V). Use Value: Enables bidirectional signal compatibility without active components or timing skew concerns. |
Use Scenario: Setting precise bias current for low-noise JFET amplifiers in audio front-end circuits. IC Role / Device Role / Timing Role: Stable voltage source establishing fixed VGS for constant-current sink configuration. Use Value: Achieves <±1% current matching across units due to tight 5.32–5.88 V VZ tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6-7-F | Same 5.6 V nominal, but higher ZZT (40 Ω vs. 11 Ω) and lower PD (300 mW vs. 350 mW). | Limited regulation accuracy under dynamic load; not recommended for precision references. | Select when cost sensitivity outweighs regulation stiffness requirements. |
| MMBZ5232BS-7-F | Identical electrical specs but in SOT-323 package (smaller footprint, higher RθJA = 400 °C/W). | Higher thermal resistance reduces usable power at elevated ambient temperatures. | Choose only if board space is constrained and thermal margin remains sufficient. |
Compared with BZX84-C5V6-7-F and MMBZ5232BS-7-F, MMBZ5232BQ-7-F offers superior regulation stability (11 Ω ZZT) and thermal performance (357 °C/W), making it optimal for precision analog references where voltage accuracy and thermal robustness are prioritized.
Availability
MMBZ5232BQ-7-F is available at Aetrix Electronics and suitable for precision voltage reference, overvoltage protection, and signal-level translation applications requiring stable component supply and full traceability.
Supply support for MMBZ5232BQ-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and quality systems aligned with AEC-Q standards.
This part belongs to the MMBZ52xxB series of 350 mW Zener diodes designed for high-reliability, automated SMT deployment in industrial control, automotive subsystems, and consumer electronics.
FAQ
What is the maximum reverse voltage before breakdown for MMBZ5232BQ-7-F?
The nominal Zener voltage is 5.6 V, with a guaranteed range of 5.32 V to 5.88 V at 20 mA test current. Below 3.0 V reverse bias, leakage remains ≤5 µA - confirming stable non-conducting behavior until reaching the specified breakdown threshold.
Is MMBZ5232BQ-7-F qualified for automotive applications?
The "Q" suffix indicates automotive-grade packaging and traceability, but full AEC-Q101 qualification applies only to explicitly designated Q-suffix parts like MMBZ5232BQ-7-F's automotive counterpart (e.g., MMBZ5232BQ-7-F is listed in Diodes' automotive product portal as PPAP-capable and manufactured in IATF 16949-certified facilities).
How does thermal derating affect MMBZ5232BQ-7-F's power handling?
Derating begins linearly above +25°C ambient: power drops to zero at +150°C. At +85°C, maximum dissipation is reduced to ~250 mW (calculated as 350 mW × [1 − (85−25)/125]). This must be factored into layout and current-limiting resistor selection.
Can MMBZ5232BQ-7-F replace MMBZ5232B-7-F in existing designs?
Yes - both share identical electrical specifications and SOT23 package. The "Q" suffix denotes enhanced traceability and automotive-oriented logistics (e.g., lot-level PPAP documentation), with no functional or parametric difference affecting circuit operation or solder reflow profile.
MMBZ5232BQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 350 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:
- SOT-23-3
MMBZ5232BQ-7-F FAQ
1.How can I place an order for MMBZ5232BQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5232BQ-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 MMBZ5232BQ-7-F reliable?
The price and inventory of MMBZ5232BQ-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 MMBZ5232BQ-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5232BQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5232BQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5232BQ-7-F?
MMBZ5232BQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5232BQ-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 MMBZ5232BQ-7-F?
For technical support, including MMBZ5232BQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5232BQ-7-F requirements.
6.How does Aetrix verify that MMBZ5232BQ-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5232BQ-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 MMBZ5232BQ-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5232BQ-7-F?
All MMBZ5232BQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5232BQ-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 MMBZ5232BQ-7-F part is unused and in its original packaging.
Return procedure for MMBZ5232BQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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