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onsemi MMSZ5264BT3G
- Part No.:
- MMSZ5264BT3G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ5264BT3G.pdf
- Description:
- DIODE ZENER 60V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:8,744
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Product details
Overview
MMSZ5264BT3G from onsemi is a 60 V ±5% Zener diode in SOD−123 package, rated for 500 mW power dissipation at 75°C ambient, with 2.1 mA test current (IZT), 170 Ω dynamic impedance (ZZT), and 0.1 µA leakage at 46 V reverse bias - used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the MMSZ5264BT3G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance, thermal equilibrium Zener voltage specification, junction-to-ambient thermal resistance (340 °C/W), ESD rating (>16 kV HBM), and Pb-free SOD−123 packaging compatibility with automated assembly.
Technical Context
This device operates as a two-terminal silicon Zener regulator, maintaining stable reverse breakdown voltage under controlled current conditions. It is characterized at thermal equilibrium (TL = 30°C ±1°C) and specified with 5% voltage tolerance, 170 Ω maximum Zener impedance at 2.1 mA, and 0.1 µA maximum leakage at VR = 46 V.
The SOD−123 package enables high-density surface-mount placement with cathode polarity band marking, and supports reflow soldering up to 260°C for 10 seconds. Its 340 °C/W junction-to-ambient thermal resistance defines derating behavior above 75°C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V nominal, 57–63 V range at IZT = 2.1 mA - defines regulated output voltage under stable thermal equilibrium conditions |
| Power Dissipation (PD) | 500 mW on FR-5 board at TL = 75°C - sets maximum continuous power handling before thermal derating begins |
| Zener Impedance (ZZT) | 170 Ω max at IZT = 2.1 mA - indicates voltage regulation stability under small-signal AC variations |
| Leakage Current (IR) | 0.1 µA max at VR = 46 V - ensures minimal standby current in voltage-clamp or reference applications |
| ESD Rating | Class 3 (>16 kV) per HBM - guarantees robustness against electrostatic discharge during handling and assembly |
| Thermal Resistance (RJA) | 340 °C/W - determines junction temperature rise above ambient, critical for reliability in enclosed or high-TA environments |
| Junction Temp Range | −55°C to +150°C - supports operation in automotive under-hood, industrial control, and outdoor electronics |
Pinout & Package
SOD−123 plastic surface-mount package (Case 425, Style 1), void-free transfer-molded thermosetting material, cathode indicated by polarity band, flammability rating UL 94 V−0, maximum soldering temperature 260°C for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener anode connection point | Connected to higher-potential node in reverse-bias configuration; polarity band identifies this terminal |
| 2 (Anode) | Zener cathode connection point | Connected to lower-potential node (e.g., ground); completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| 500 mW Power Rating | Enables use in medium-current voltage reference and clamp circuits without external heat sinking on standard PCBs |
| ±5% Zener Voltage Tolerance | Provides predictable regulation accuracy for cost-sensitive industrial and consumer power supply feedback networks |
| ESD Robustness >16 kV (HBM) | Reduces risk of field failure in unshielded or handheld equipment during manufacturing and end-use |
| Pb-Free SOD−123 Packaging | Ensures RoHS compliance and compatibility with lead-free reflow profiles in high-volume automated assembly |
| Thermal Equilibrium Specification | Guarantees Zener voltage stability under steady-state thermal conditions, critical for precision analog references |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module Reference |
|---|---|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Zener diode providing fixed 60 V reference to op-amp bias network. Use Value: Maintains sensor linearity and offset stability across −40°C to +85°C ambient via tight 5% VZ tolerance and low TC drift. | Use Scenario: Overvoltage clamp protecting microcontroller I/O pins from load-dump transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Two-terminal shunt regulator clamping transient spikes above 60 V. Use Value: Absorbs surge energy up to 500 mW without latch-up, leveraging 170 Ω ZZT to limit clamping voltage overshoot. |
| Medical Portable Device Power Supervision | Telecom Line Interface Protection |
Use Scenario: Monitoring battery pack voltage in portable ultrasound units using resistive divider + comparator. IC Role / Device Role / Timing Role: Precision voltage reference for comparator threshold setting. Use Value: Delivers stable 60 V reference with <0.1 µA leakage, minimizing divider current error and extending battery life. | Use Scenario: Secondary overvoltage protection on Ethernet PHY power rails exposed to induced surges. IC Role / Device Role / Timing Role: Standby Zener clamp activated only during fault conditions. Use Value: Activates at 60 V with fast response (<100 ns), limiting rail excursion while surviving repetitive 100 ms surges per JEDEC standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C62 | 62 V nominal, ±5%, 300 mW rating, SOD-323 package | Lower power rating and smaller package reduce thermal margin in sustained clamp duty | Select when board space is constrained and peak power <300 mW; verify thermal performance at 62 V operating point |
| SZMMBZ5264ET1G | Same 60 V/±5% spec, but in SOT-23 package with 350 mW rating and different thermal resistance (RJA = 300 °C/W) | SOT-23 allows higher current density but requires layout review for thermal relief pads | Choose for designs already using SOT-23 footprints; confirm 350 mW derating meets system surge requirements |
Compared with MMSZ5264BT3G, BZX584-C62 offers smaller footprint but reduced power handling, while SZMMBZ5264ET1G provides identical voltage specs in a different package with distinct thermal behavior - both require validation of Zener impedance and leakage at actual operating current and temperature.
Availability
MMSZ5264BT3G is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, medical portable device supervision, telecom line interface protection, and precision analog reference applications requiring stable component supply and long-term lifecycle continuity.
Supply support for MMSZ5264BT3G 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MMSZ52xxxT1G series is designed for general-purpose, medium-current Zener regulation in space-constrained surface-mount applications - emphasizing thermal equilibrium voltage stability, high ESD robustness, and Pb-free manufacturability.
FAQ
What is the Zener voltage tolerance for MMSZ5264BT3G?
The MMSZ5264BT3G has a ±5% Zener voltage tolerance, meaning its nominal 60 V breakdown voltage is guaranteed between 57 V and 63 V when measured under thermal equilibrium conditions (TL = 30°C ±1°C) at IZT = 2.1 mA. This tolerance is confirmed in the "5% TOLERANCE FG ELECTRICAL CHARACTERISTICS" table on page 3 of the official datasheet.
Does MMSZ5264BT3G meet automotive qualification standards?
Yes, the SZ-prefix variant (SZMMSZ5264BT3G) is AEC-Q101 qualified and PPAP capable, meeting automotive reliability requirements. The standard MMSZ5264BT3G shares identical electrical and thermal specifications but is not certified for automotive use unless ordered with the SZ prefix - always verify part marking and ordering code for qualification status.
What is the maximum reverse leakage current for MMSZ5264BT3G?
The MMSZ5264BT3G specifies a maximum reverse leakage current (IR) of 0.1 µA at VR = 46 V and TA = 25°C. This value is listed in the "5% TOLERANCE FG ELECTRICAL CHARACTERISTICS" table and reflects the device's ability to minimize standby current in voltage-reference and clamp circuits.
Can MMSZ5264BT3G be used in high-density PCB layouts?
Yes, the MMSZ5264BT3G uses the compact SOD−123 package (1.8 mm × 2.8 mm footprint), optimized for high-density surface-mount assembly. Its small size, Pb-free finish, and compatibility with standard reflow profiles make it suitable for densely populated boards in consumer, industrial, and telecom equipment where space and thermal management are critical.
How does thermal derating affect MMSZ5264BT3G's power handling?
MMSZ5264BT3G is rated for 500 mW at TL = 75°C, with linear derating of 6.7 mW/°C above that temperature. At 100°C board temperature, its usable power drops to approximately 332 mW. This derating is defined in the "MAXIMUM RATINGS" table and must be applied in thermal design to prevent junction overheating beyond 150°C.
MMSZ5264BT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 60 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 46 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
MMSZ5264BT3G FAQ
1.How can I place an order for MMSZ5264BT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5264BT3G 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 MMSZ5264BT3G reliable?
The price and inventory of MMSZ5264BT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ5264BT3G is usually 5 days.
3.What payment methods are accepted for MMSZ5264BT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5264BT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5264BT3G?
MMSZ5264BT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5264BT3G 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 MMSZ5264BT3G?
For technical support, including MMSZ5264BT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5264BT3G requirements.
6.How does Aetrix verify that MMSZ5264BT3G is sourced from the original manufacturer or authorized distributors?
All MMSZ5264BT3G 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 MMSZ5264BT3G meets industry standards.
7.What is the process for return or replacement of MMSZ5264BT3G?
All MMSZ5264BT3G units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5264BT3G, 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 MMSZ5264BT3G part is unused and in its original packaging.
Return procedure for MMSZ5264BT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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