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onsemi MMSZ5236BT3G
- Part No.:
- MMSZ5236BT3G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ5236BT3G.pdf
- Description:
- DIODE ZENER 7.5V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:7,945
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Product details
Overview
MMSZ5236BT3G from onsemi is a 5% tolerance, 7.5 V nominal Zener diode in SOD−123 surface-mount package, rated for 500 mW power dissipation at 75°C on FR−5 board, with 6 Ω dynamic impedance at 20 mA test current and 0.25 µA leakage at 6 V reverse bias-used for voltage reference, overvoltage protection, and biasing in power management circuits.
For engineers reviewing the MMSZ5236BT3G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, cathode/anode terminal mapping, and direct-fit alternatives for industrial power supply and automotive sensor interface designs.
Technical Context
This device operates as a precision shunt voltage regulator where reverse breakdown occurs at a tightly controlled 7.5 V nominal Zener voltage (±5%) under thermal equilibrium conditions (TL = 30°C ±1°C), with specified test current IZT = 20 mA and minimum knee current IZK = 0.25 mA.
Its 6 Ω Zener impedance (ZZT) at IZT and 500 Ω at IZK (IZK = 0.25 mA) define low-noise regulation performance, while ESD robustness exceeds 16 kV per Human Body Model and junction temperature range spans −55°C to +150°C for harsh-environment deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 7.5 V @ IZT = 20 mA - stable reference point for feedback loops and clamping thresholds |
| Zener Tolerance | ±5% - ensures predictable voltage margin across production lots without trimming |
| Dynamic Impedance | 6 Ω @ IZT - minimizes output voltage variation under load transients |
| Power Dissipation | 500 mW @ TL = 75°C - supports continuous operation in compact PCB layouts with moderate airflow |
| Leakage Current | 0.25 µA @ VR = 6 V - enables low-quiescent-current standby modes in battery-powered systems |
| Thermal Resistance | RJA = 340°C/W - dictates heatsinking requirements when operating near max power |
| ESD Rating | HBM Class 3 (>16 kV) - eliminates need for external ESD protection in front-end signal conditioning |
Pinout & Package
SOD−123 plastic surface-mount package (Case 425, Style 1), void-free thermosetting body with corrosion-resistant finish, cathode indicated by polarity band, maximum soldering temperature 260°C for 10 seconds, UL 94 V−0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential rail; completes shunt path |
Key Features
| Feature | Design Value |
|---|---|
| 500 mW Power Rating | Enables use in medium-current regulation without external heat sinking on standard FR−5 PCBs |
| Small SOD−123 Footprint | Reduces board area by >50% vs. legacy DO-35 through-hole Zeners for high-density power modules |
| Automated Assembly Optimized | Transfer-molded case geometry ensures reliable pick-and-place yield in SMT lines |
| Pb-Free Construction | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles |
| AEC-Q101 Qualified | Validated for automotive under-hood applications including engine control and ADAS power rails |
Applications
| Industrial Power Supply Reference | Automotive Sensor Biasing |
|---|---|
Use Scenario: Providing stable 7.5 V reference for op-amp comparators in 24 V DC input industrial SMPS feedback networks. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise trip threshold for overvoltage detection circuitry. Use Value: 6 Ω ZZT ensures <15 mV output shift across 5–25 mA load variation, improving OVP accuracy to ±0.2%. | Use Scenario: Biasing Hall-effect position sensors in electric power steering (EPS) motor control modules. IC Role / Device Role / Timing Role: Low-leakage voltage clamp protecting sensor IC inputs against load-dump transients up to 40 V. Use Value: 0.25 µA IR at 6 V allows sensor quiescent current to remain below 1 µA, extending battery backup runtime. |
| Consumer USB-C PD Protection | Medical Diagnostic Equipment Calibration |
Use Scenario: Clamping transient spikes on 5 V/9 V/15 V USB-C power delivery negotiation lines. IC Role / Device Role / Timing Role: Fast-response overvoltage suppressor placed adjacent to USB-C controller I/O pins. Use Value: 16 kV HBM ESD rating eliminates need for discrete TVS diodes, reducing BOM count by one component. | Use Scenario: Generating traceable 7.5 V calibration reference for analog front-end ADCs in portable ultrasound devices. IC Role / Device Role / Timing Role: Precision shunt regulator feeding voltage divider network that sets full-scale ADC input range. Use Value: ±5% VZ tolerance and <50 ppm/°C TC (per Fig. 1) maintain calibration drift below 0.1% over 0–50°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5LT1G | Same 7.5 V nominal, ±5% tolerance, but SOT-23 package (higher RJA = 375°C/W) and 10 Ω ZZT | Lower power density; less suitable for sustained 20 mA operation without derating | Select when existing SOT-23 footprint must be retained and peak current stays below 15 mA |
| MMSZ5236ET3G | Same SOD−123 package and 7.5 V rating, but ±2% tolerance and 5 Ω ZZT | Tighter regulation required for metrology-grade references or closed-loop feedback | Choose for higher-accuracy applications where cost premium for 2% grade is justified |
Compared with MMSZ5236BT3G, BZX84-C7V5LT1G offers footprint compatibility at the expense of thermal performance and impedance, while MMSZ5236ET3G improves voltage accuracy and dynamic response but requires tighter process control in manufacturing.
Availability
MMSZ5236BT3G is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, and consumer USB-C protection circuits requiring stable component supply with AEC-Q101 qualification and Pb-free compliance.
Supply support for MMSZ5236BT3G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MMSZ52xxxT1G series was designed as a high-reliability, surface-mount Zener voltage regulator family targeting space-constrained applications needing stable reference voltages across −55°C to +150°C with automotive-grade qualification.
FAQ
What is the nominal Zener voltage and tolerance of MMSZ5236BT3G?
MMSZ5236BT3G has a nominal Zener voltage of 7.5 V with a ±5% tolerance, measured at IZT = 20 mA under thermal equilibrium conditions (TL = 30°C ±1°C). This specification is confirmed in the "5% TOLERANCE FG ELECTRICAL CHARACTERISTICS" table on page 3 of the official onsemi datasheet, where Min/Nom/Max values are listed as 7.13 V / 7.5 V / 7.88 V.
What is the maximum power dissipation rating for MMSZ5236BT3G and how does it derate with temperature?
MMSZ5236BT3G is rated for 500 mW total power dissipation on FR−5 board at TL = 75°C, with linear derating of 6.7 mW/°C above that temperature. This value is defined in the "MAXIMUM RATINGS" table and validated via infrared scan method per Note 2, ensuring accurate thermal modeling in PCB layout.
Does MMSZ5236BT3G have automotive qualification and what standards does it meet?
Yes, MMSZ5236BT3G meets AEC−Q101 qualification for automotive applications and is PPAP capable. It also carries an ESD rating of Class 3 (>16 kV) per Human Body Model and complies with RoHS Directive 2011/65/EU, as stated in the "Features" section and "ORDERING INFORMATION" table of the onsemi datasheet.
What are the Zener impedance and leakage current specifications for MMSZ5236BT3G?
MMSZ5236BT3G exhibits 6 Ω maximum Zener impedance (ZZT) at IZT = 20 mA and 500 Ω maximum at IZK = 0.25 mA (ZZK), with reverse leakage current limited to 0.25 µA at VR = 6 V. These parameters are explicitly listed in the "5% TOLERANCE FG ELECTRICAL CHARACTERISTICS" table on page 3 of the official datasheet.
What is the package type and pin configuration of MMSZ5236BT3G?
MMSZ5236BT3G uses the SOD−123 surface-mount package (Case 425, Style 1), with Pin 1 (cathode) marked by a polarity band and Pin 2 (anode) unmarked. Mechanical dimensions and soldering specifications-including 260°C max soldering temperature for 10 seconds-are detailed in the "PACKAGE DIMENSIONS" section on page 7 of the onsemi datasheet.
MMSZ5236BT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 500 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:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
MMSZ5236BT3G FAQ
1.How can I place an order for MMSZ5236BT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5236BT3G 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 MMSZ5236BT3G reliable?
The price and inventory of MMSZ5236BT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ5236BT3G is usually 5 days.
3.What payment methods are accepted for MMSZ5236BT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5236BT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5236BT3G?
MMSZ5236BT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5236BT3G 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 MMSZ5236BT3G?
For technical support, including MMSZ5236BT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5236BT3G requirements.
6.How does Aetrix verify that MMSZ5236BT3G is sourced from the original manufacturer or authorized distributors?
All MMSZ5236BT3G 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 MMSZ5236BT3G meets industry standards.
7.What is the process for return or replacement of MMSZ5236BT3G?
All MMSZ5236BT3G units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5236BT3G, 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 MMSZ5236BT3G part is unused and in its original packaging.
Return procedure for MMSZ5236BT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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