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onsemi MMSZ5264BT3
- Part No.:
- MMSZ5264BT3
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
MMSZ5264BT3.pdf
- Description:
- DIODE ZENER 60V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,930
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Product details
Overview
MMSZ5264BT3 from onsemi is a 60 V ±5% Zener diode in SOD−123 package, rated for 500 mW power dissipation at TL = 75°C with 2.1 mA test current (IZT), 1400 Ω dynamic impedance (ZZT), and 0.1 µA reverse leakage at 46 V (VR). It serves as a precision voltage reference or overvoltage clamp in low-power analog circuits, power supply feedback loops, and ESD-protected sensor interfaces.
For engineers reviewing the MMSZ5264BT3 datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance (±5%), thermal equilibrium voltage specification, junction-to-lead thermal resistance (150 °C/W), and AEC−Q101 qualification status for automotive use cases.
Technical Context
This device operates as a two-terminal silicon Zener regulator, maintaining stable reverse breakdown voltage under controlled current conditions. Its Zener voltage is specified with the device junction in thermal equilibrium at TL = 30°C ±1°C, ensuring repeatable calibration across production lots.
It exhibits a temperature coefficient of +0.085 %/°C (typical) for the 60 V variant, enabling predictable drift compensation in mid-voltage reference designs. The SOD−123 package supports automated placement and provides Class 3 ESD robustness (>16 kV HBM), making it suitable for high-reliability PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 57.0–63.0 V @ IZT = 2.1 mA - defines stable regulation range for feedback or clamping |
| Power Dissipation (PD) | 500 mW on FR−5 board @ TL = 75°C - sets maximum continuous thermal load without derating |
| Zener Impedance (ZZT) | 1400 Ω @ IZT = 2.1 mA - indicates voltage stability under small-signal AC variations |
| Reverse Leakage (IR) | 0.1 µA @ VR = 46 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Junction Temp Range | −55 to +150 °C - enables operation in under-hood automotive or industrial ambient environments |
| ESD Rating | Class 3 (>16 kV HBM) - protects against handling-induced electrostatic discharge during assembly |
| Tolerance | ±5% - specifies initial voltage accuracy without post-manufacturing trimming |
Pinout & Package
SOD−123 surface-mount plastic package (Case 425, Style 1), cathode indicated by polarity band; dimensions: 2.84 mm × 1.35 mm × 0.94 mm (L × W × H), 10,000 units per tape-and-reel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node or voltage reference point; reverse-biased terminal during Zener operation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes current path during regulation or clamping |
Key Features
| Feature | Design Value |
|---|---|
| Pb−Free construction | Meets RoHS Directive 2011/65/EU and JESD204B; compatible with lead-free reflow profiles up to 260°C for 10 s |
| AEC−Q101 qualified | Validated for automotive applications including engine control modules and body electronics requiring PPAP documentation |
| Thermal equilibrium voltage spec | Zener voltage measured at TL = 30°C ±1°C, eliminating thermal gradient error in precision reference designs |
| Small footprint density | SOD−123 footprint occupies only 3.8 mm² PCB area-enables compact layout in space-constrained IoT sensors and wearables |
Applications
| Automotive Engine Control Unit (ECU) Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 60 V reference for analog-to-digital converter (ADC) biasing in engine knock detection circuitry. IC Role / Device Role / Timing Role: Zener voltage reference establishing precise input scaling for high-voltage transducer signals. Use Value: Maintains ±5% voltage accuracy across −40°C to +125°C ambient, supporting AEC−Q100 Grade 1 compliance. | Use Scenario: Clamping transient overvoltage on 4–20 mA current loop inputs exposed to field wiring surges. IC Role / Device Role / Timing Role: Two-terminal shunt protector limiting voltage excursion to ≤63 V during 1 kV/µs fast transients. Use Value: 1400 Ω ZZT ensures minimal voltage shift under surge current, preserving signal integrity during fault events. |
| Medical Infusion Pump Power Monitoring | Consumer Smart Home Hub Voltage Supervision |
Use Scenario: Monitoring battery pack voltage in portable infusion pumps using resistive divider with Zener-stabilized reference. IC Role / Device Role / Timing Role: Precision voltage reference enabling accurate state-of-charge estimation within ±2% full-scale error budget. Use Value: 0.1 µA IR at 46 V minimizes divider current draw, extending battery life beyond 72 hours per charge cycle. | Use Scenario: Brown-out detection circuit triggering system reset when 12 V auxiliary rail drops below safe operating threshold. IC Role / Device Role / Timing Role: Zener-based comparator reference setting trip point at 11.4 V (95% of nominal). Use Value: ±5% VZ tolerance allows deterministic reset window design without external trimming components. |
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-C62 | 62 V ±5%, SOT−23 package, 300 mW rating, 1000 Ω ZZT @ 5 mA | Lower power rating and higher test current reduce suitability for low-current precision references | Select when board space permits SOT−23 and thermal load remains below 300 mW |
| SZMMBZ5264ET1G | 60 V ±5%, SOT−23 package, 350 mW rating, 1400 Ω ZZT @ 2.1 mA, AEC−Q101 qualified | Same electrical specs but different package footprint and lower power rating limit continuous dissipation | Choose only if SOT−23 is required and thermal management ensures TJ < 150°C under worst-case load |
Compared with MMSZ5264BT3, BZX84-C62 offers smaller SOT−23 size but sacrifices 40% power handling and requires higher bias current; SZMMBZ5264ET1G matches voltage and impedance specs but reduces PD to 350 mW and changes land pattern-neither is pin-compatible due to differing SOD−123 vs. SOT−23 footprints.
Availability
MMSZ5264BT3 is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor interfaces, medical infusion pump monitoring, and consumer smart home voltage supervision requiring stable component supply and AEC−Q101 traceability.
Supply support for MMSZ5264BT3 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 accuracy, Pb−free manufacturability, and AEC−Q101 compliance for automotive-grade reliability.
FAQ
What is the Zener voltage tolerance for MMSZ5264BT3?
The MMSZ5264BT3 has a nominal Zener voltage of 60 V with a tolerance of ±5%, meaning its actual reverse breakdown voltage falls between 57.0 V and 63.0 V when measured at IZT = 2.1 mA and thermal equilibrium (TL = 30°C ±1°C). This tolerance is confirmed in the "5% TOLERANCE FG ELECTRICAL CHARACTERISTICS" table on page 3 of the official datasheet.
Is MMSZ5264BT3 qualified for automotive applications?
Yes, MMSZ5264BT3 is AEC−Q101 qualified and PPAP capable, as explicitly stated in the "Features" section of the datasheet. The "SZ" prefix variants (e.g., SZMMSZ5264BT3G) are designated for automotive use, but the standard MMSZ5264BT3 shares identical qualification-confirmed by the footnote "*Includes SZ-prefix devices where applicable" in the electrical characteristics table.
What is the maximum power dissipation of MMSZ5264BT3 on an FR−5 board?
MMSZ5264BT3 is rated for 500 mW total power dissipation on an FR−5 board at a lead temperature (TL) of 75°C. Above 75°C, it derates linearly at 6.7 mW/°C. This value is specified in the "MAXIMUM RATINGS" table and applies directly to the MMSZ5264BT3 part number as part of the MMSZ52xxxT1G series.
Does MMSZ5264BT3 have ESD protection, and what level is rated?
MMSZ5264BT3 has an ESD rating of Class 3 (>16 kV) per the Human Body Model (HBM), as documented in the "Features" section of the datasheet. This rating is inherent to the device structure and applies to all members of the MMSZ52xxxT1G series, including MMSZ5264BT3, ensuring robustness during automated PCB assembly and handling.
What is the reverse leakage current specification for MMSZ5264BT3?
The reverse leakage current (IR) for MMSZ5264BT3 is specified as 0.1 µA maximum at VR = 46 V, per the "5% TOLERANCE FG ELECTRICAL CHARACTERISTICS" table on page 3. This parameter is measured at TA = 25°C and reflects the device's ability to maintain high impedance in non-conducting state-critical for low-power bias networks.
MMSZ5264BT3 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
MMSZ5264BT3 FAQ
1.How can I place an order for MMSZ5264BT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMSZ5264BT3 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 MMSZ5264BT3 reliable?
The price and inventory of MMSZ5264BT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMSZ5264BT3 is usually 5 days.
3.What payment methods are accepted for MMSZ5264BT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMSZ5264BT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMSZ5264BT3?
MMSZ5264BT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMSZ5264BT3 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 MMSZ5264BT3?
For technical support, including MMSZ5264BT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMSZ5264BT3 requirements.
6.How does Aetrix verify that MMSZ5264BT3 is sourced from the original manufacturer or authorized distributors?
All MMSZ5264BT3 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 MMSZ5264BT3 meets industry standards.
7.What is the process for return or replacement of MMSZ5264BT3?
All MMSZ5264BT3 units undergo pre-shipment inspection (PSI). If there is an issue with MMSZ5264BT3, 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 MMSZ5264BT3 part is unused and in its original packaging.
Return procedure for MMSZ5264BT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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