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Diodes Incorporated MMBZ5236BT-7-F
- Part No.:
- MMBZ5236BT-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
MMBZ5236BT-7-F.pdf
- Description:
- DIODE ZENER 7.5V 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:7,124
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Product details
Overview
MMBZ5236BT-7-F from Diodes Incorporated is a 7.5 V, 150 mW surface-mount Zener diode in SOT-523 package, rated for 20 mA test current, 6.0 Ω dynamic impedance at 20 mA, and 3.0 μA reverse leakage at 6.0 V, used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the MMBZ5236BT-7-F datasheet, MMBZ5236BT-7-F pinout, MMBZ5236BT-7-F application, or MMBZ5236BT-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±4.5%), thermal resistance (833 °C/W), power derating above 25°C, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This Zener diode employs planar die construction for stable breakdown characteristics and low noise performance. It operates within -65°C to +150°C ambient range and delivers regulated output under reverse-biased conditions with specified Zener impedance and leakage behavior.
The device is optimized for general-purpose voltage clamping and reference functions in space-constrained designs. Its ultra-small SOT-523 footprint supports high-density layouts while maintaining reliable thermal dissipation when mounted per Diodes Inc.'s recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 7.5 V - precise regulation point at 20 mA test current |
| Zener Voltage Range | 7.13–7.88 V - ±4.5% tolerance ensures predictable clamping window |
| Power Dissipation | 150 mW - maximum steady-state power at 25°C ambient |
| Zener Impedance | 6.0 Ω @ 20 mA - low dynamic resistance enables stable regulation under load variation |
| Reverse Leakage | 3.0 μA @ 6.0 V - minimal off-state current preserves signal integrity in bias networks |
| Thermal Resistance | 833 °C/W - defines junction-to-ambient temperature rise per watt dissipated |
| Package | SOT-523 - 0.002 g ultra-compact surface-mount outline with 0.5 mm pitch terminals |
Pinout & Package
Package: SOT-523 - ultra-small plastic molded case (UL 94V-0), 3-terminal surface-mount device with anode/cathode polarity indicated by marking and top-view schematic.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower potential side during normal Zener operation; required for correct biasing in shunt regulator configurations |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher potential side; carries reverse current during regulation; marked side on package body |
| Case / Heat Sink (Pin 3) | Non-electrical mechanical termination | Not internally connected; serves as mechanical anchor and minor thermal path; no electrical isolation requirement |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SMT footprint | Enables placement in high-density PCB layouts where board area is constrained, such as portable sensor modules and wearables |
| Planar die construction | Delivers repeatable Zener voltage distribution and improved long-term stability versus diffused-junction alternatives |
| Lead-free/RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe meets global environmental compliance without compromising solderability |
| Moisture sensitivity Level 1 | Eliminates need for dry-packaging or baking prior to reflow, reducing manufacturing overhead in automated assembly lines |
Applications
| Portable Power Management | Signal-Level Clamping |
|---|---|
Use Scenario: Regulating reference voltage for battery fuel gauges and low-dropout regulators in Bluetooth headsets and smartwatches. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 7.5 V bias to ADC input stages and comparator thresholds. Use Value: Tight 7.13–7.88 V tolerance ensures consistent measurement accuracy across temperature and unit-to-unit variation. | Use Scenario: Protecting GPIO pins of microcontrollers from ESD-induced overvoltage during hot-plug events in USB-C peripherals. IC Role / Device Role / Timing Role: Fast-acting clamp limiting transient voltage to ≤7.88 V before damage occurs to downstream logic inputs. Use Value: Low 6.0 Ω Zener impedance minimizes voltage overshoot during sub-microsecond transients. |
| Industrial Sensor Signal Conditioning | Low-Power Reference Circuits |
Use Scenario: Stabilizing excitation voltage for 4–20 mA loop-powered pressure transmitters operating in harsh factory environments. IC Role / Device Role / Timing Role: Precision Zener reference establishing fixed bias for op-amp gain-setting networks and current-sense amplifiers. Use Value: Stable operation from -65°C to +150°C ensures calibration retention across wide industrial temperature ranges. | Use Scenario: Generating accurate bias points for rail-to-rail op-amps in battery-powered IoT node front-ends. IC Role / Device Role / Timing Role: Low-current Zener reference drawing only 3.0 μA leakage at 6.0 V, minimizing quiescent power drain. Use Value: 150 mW rating allows safe operation at 20 mA test current while supporting extended battery life in always-on sensing modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C7V5 | Same 7.5 V nominal, but SOD-523 package; 300 mW power rating; 15 Ω Zener impedance | Higher power handling suits higher-current regulation; larger package may limit routing density | Select when >150 mW dissipation is required and board space permits larger footprint |
| MMBZ5236BS-7-F | Identical electrical specs; same SOT-523 package; differs only in tape-and-reel packaging quantity (10,000 vs. 3,000 units) | No functional difference; identical performance and layout compatibility | Select for high-volume production requiring larger reel quantities to reduce changeover frequency |
Compared with BZX584C7V5 and MMBZ5236BS-7-F, the MMBZ5236BT-7-F offers optimal balance of ultra-compact size, low-impedance regulation, and standard 3k-reel logistics-making it ideal for miniaturized, low-power, high-throughput SMT designs.
Availability
MMBZ5236BT-7-F is available at Aetrix Electronics and suitable for portable power management, signal-level clamping, industrial sensor signal conditioning, and low-power reference circuits requiring stable component supply and RoHS-compliant sourcing.
Supply support for MMBZ5236BT-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, serving automotive, industrial, computing, and consumer markets with a focus on reliability and efficiency.
The MMBZ52xxBT series belongs to Diodes Inc.'s general-purpose Zener diode product line, engineered specifically for space-constrained, low-power voltage regulation and clamping in automated SMT environments.
FAQ
What is the maximum reverse voltage this Zener can safely clamp?
The MMBZ5236BT-7-F is rated for 6.0 V reverse voltage at which leakage remains ≤3.0 μA. Its absolute maximum non-repetitive peak reverse voltage is not specified, but sustained operation above 7.88 V risks thermal runaway due to its 150 mW power limit and 833 °C/W thermal resistance.
Can this Zener be used in series or parallel configurations?
Series connection is acceptable for higher-voltage references if matched units are selected to minimize current imbalance. Parallel use is strongly discouraged-mismatched Zener voltages cause current hogging and premature failure due to lack of inherent current-sharing capability.
Does this part require derating at elevated ambient temperatures?
Yes. Per Figure 1 in the datasheet, power must be linearly derated above 25°C at 1.2 mW/°C. At 85°C ambient, maximum allowable dissipation drops to 78 mW. Mounting must follow Diodes Inc.'s recommended pad layout to achieve the stated 833 °C/W RθJA.
Is the SOT-523 package compatible with standard reflow profiles?
Yes-the SOT-523 package is qualified for lead-free reflow per J-STD-020D Level 1 moisture sensitivity. No pre-baking is required. The matte tin finish ensures robust wetting during standard Pb-free peak profiles (260°C max), and the 0.002 g mass prevents tombstoning in fine-pitch placements.
MMBZ5236BT-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 150 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
MMBZ5236BT-7-F FAQ
1.How can I place an order for MMBZ5236BT-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5236BT-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 MMBZ5236BT-7-F reliable?
The price and inventory of MMBZ5236BT-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 MMBZ5236BT-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5236BT-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5236BT-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5236BT-7-F?
MMBZ5236BT-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5236BT-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 MMBZ5236BT-7-F?
For technical support, including MMBZ5236BT-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5236BT-7-F requirements.
6.How does Aetrix verify that MMBZ5236BT-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5236BT-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 MMBZ5236BT-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5236BT-7-F?
All MMBZ5236BT-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5236BT-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 MMBZ5236BT-7-F part is unused and in its original packaging.
Return procedure for MMBZ5236BT-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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