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Diodes Incorporated MMBZ5236BQ-7-F
- Part No.:
- MMBZ5236BQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ5236BQ-7-F.pdf
- Description:
- DIODE ZENER 7.5V 350MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:4,213
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Product details
Overview
MMBZ5236BQ-7-F from Diodes Incorporated is a 7.5V ±4.7% tolerance, 350mW surface-mount Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in low-power analog and digital circuits. It delivers 6Ω dynamic impedance at 20mA test current, supports 3µA reverse leakage at 6V, and operates across –65°C to +150°C.
For engineers reviewing the MMBZ5236BQ-7-F datasheet, MMBZ5236BQ-7-F pinout, MMBZ5236BQ-7-F application, or MMBZ5236BQ-7-F equivalent, this part serves as a compact, AEC-Q200–capable (Q-suffix) voltage reference for automotive body electronics, industrial sensor signal conditioning, and power rail clamping where thermal stability and JEDEC-compliant reliability are required.
Technical Context
This Zener diode uses planar die construction to ensure stable breakdown characteristics and low temperature coefficient. Its 7.5V nominal Zener voltage is specified at IZT = 20mA with tight 7.13–7.88V range, and it maintains ≤500Ω impedance at knee current (IZK = 0.25mA), enabling reliable low-current regulation.
The device is rated for 350mW dissipation on FR-4 PCB with RθJA = 357°C/W, and its SOT23 package features matte tin-plated Alloy 42 leads, UL 94V-0 molding compound, and J-STD-020 Level 1 moisture sensitivity - optimized for reflow-compatible automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5V nominal, 7.13–7.88V min/max at 20mA - ensures precise clamping within ±4.7% tolerance for stable reference generation. |
| Zener Impedance (ZZT) | 6Ω at IZT = 20mA - enables low-voltage deviation under load variation in feedback or regulation paths. |
| Reverse Leakage (IR) | 3.0µA max at VR = 6.0V - minimizes standby current loss in battery-powered or high-impedance bias networks. |
| Power Dissipation (PD) | 350mW on FR-4 board - supports continuous operation in space-constrained PCB layouts without forced cooling. |
| Operating Temperature | –65°C to +150°C - qualified for under-hood automotive, industrial control, and extended-environment applications. |
| Package | SOT23 - 3-pin surface-mount footprint compatible with standard pick-and-place and reflow processes. |
Pinout & Package
SOT23 package: 3-terminal plastic molded case with gull-wing leads; terminals are anode, cathode, and anode (cathode-anode-anode configuration per standard SOT23 Zener marking convention). Moisture sensitivity Level 1, weight ≈0.008g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to lower-potential node in reverse-biased operation; forms return path for Zener current during clamping. |
| Pin 2 | Cathode | Connected to regulated/higher-potential node; carries full Zener current when breakdown is active. |
| Pin 3 | Anode | Internally tied to Pin 1; provides mechanical stability and thermal path - not electrically isolated. |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and long-term parametric stability under thermal cycling. |
| 350mW FR-4 power rating | Enables direct integration into low-power supply rails without heatsinking or derating in ambient <70°C environments. |
| JEDEC-compliant high-reliability qualification | Meets AEC-Q200 stress test requirements when ordered as Q-suffix variant - suitable for automotive ECUs and ADAS modules. |
| Halogen- and antimony-free "Green" compound | UL 94V-0 rated, <900ppm Br/Cl total, <1000ppm Sb - satisfies RoHS 3 and automotive OEM environmental compliance mandates. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping on LIN bus transceiver I/O lines exposed to load-dump transients. IC Role / Device Role / Timing Role: Zener-based overvoltage protection element placed between LIN pin and ground. Use Value: Limits transient excursions to ≤7.9V, preventing damage to 8V-rated transceiver inputs while drawing <1mA at 12V supply. |
Use Scenario: Reference stabilization for 12-bit ADC front-end in temperature transmitter. IC Role / Device Role / Timing Role: Shunt voltage reference providing 7.5V bias to op-amp gain stage. Use Value: Maintains <0.5% output drift over –40°C to +85°C due to low tempco and 6Ω ZZT, improving measurement accuracy. |
| USB-C Power Delivery Monitoring | Smart Meter Voltage Supervisor |
Use Scenario: Overvoltage detection on VBUS sense line in USB PD sink controller. IC Role / Device Role / Timing Role: Clamping diode in comparator input divider network. Use Value: Triggers fault flag at 7.88V threshold with <100ns response, meeting USB PD 3.1 fast-fail timing requirements. |
Use Scenario: Brown-out detection circuit monitoring 3.3V microcontroller supply rail. IC Role / Device Role / Timing Role: Zener-based hysteresis element in window comparator. Use Value: Enables 3.2–3.4V valid window with <20µA quiescent current, extending battery life in 10-year meter deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 | Same 7.5V nominal, but 300mW rating and higher ZZT = 15Ω at 5mA - less stable under varying load. | Lacks AEC-Q200 qualification and Q-suffix automotive traceability; limited to commercial-grade consumer products. | Select when cost is primary constraint and automotive/industrial reliability is not required. |
| MMSZ5236ET1G | 7.5V, 500mW rating, ZZT = 7Ω at 20mA, but SOD-123 package - larger footprint and higher RθJA. | Higher power handling suits higher-current regulation, but incompatible with dense SOT23 layouts. | Choose when >350mW dissipation is needed and board area permits SOD-123 placement. |
Compared with BZX84-C7V5 and MMSZ5236ET1G, MMBZ5236BQ-7-F uniquely balances automotive-grade reliability, SOT23 space efficiency, and 6Ω low-impedance regulation - making it optimal for safety-critical, size-constrained embedded systems.
Availability
MMBZ5236BQ-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C power monitoring, and smart metering applications requiring stable component supply, consistent parametric performance, and full traceability.
Supply support for MMBZ5236BQ-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.
This device belongs to the MMBZ52xxB series of 350mW Zener diodes engineered specifically for high-volume, high-reliability voltage reference and protection in automotive, industrial, and computing applications.
FAQ
What is the maximum reverse leakage current for MMBZ5236BQ-7-F at 6V?
The maximum reverse leakage current is 3.0µA at VR = 6.0V and TA = +25°C, as specified in the Electrical Characteristics table. This value remains ≤5.0µA up to +125°C per thermal derating curves, ensuring minimal standby power loss in always-on circuits.
Is MMBZ5236BQ-7-F qualified for automotive use?
Yes - the "Q" suffix denotes qualification to AEC-Q200 for passive components, including temperature cycling, humidity testing, and vibration endurance. The part is manufactured in IATF 16949-certified facilities and supports PPAP documentation for Tier 1 automotive suppliers.
How does the SOT23 pinout differ between Zener and standard diode configurations?
MMBZ5236BQ-7-F follows standard SOT23 Zener marking: Pin 1 = anode, Pin 2 = cathode, Pin 3 = anode (internally shorted to Pin 1). Unlike rectifier diodes, this dual-anode layout improves thermal dissipation and mechanical robustness without altering electrical function.
Can MMBZ5236BQ-7-F be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients and mismatched breakdown voltages; paralleling causes current hogging and thermal runaway. For >350mW needs, select a single higher-power device like MMSZ5236ET1G or implement active regulation instead.
MMBZ5236BQ-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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 6 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
MMBZ5236BQ-7-F FAQ
1.How can I place an order for MMBZ5236BQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5236BQ-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 MMBZ5236BQ-7-F reliable?
The price and inventory of MMBZ5236BQ-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 MMBZ5236BQ-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5236BQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5236BQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5236BQ-7-F?
MMBZ5236BQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5236BQ-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 MMBZ5236BQ-7-F?
For technical support, including MMBZ5236BQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5236BQ-7-F requirements.
6.How does Aetrix verify that MMBZ5236BQ-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5236BQ-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 MMBZ5236BQ-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5236BQ-7-F?
All MMBZ5236BQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5236BQ-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 MMBZ5236BQ-7-F part is unused and in its original packaging.
Return procedure for MMBZ5236BQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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