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onsemi MMBZ5264BLT1G
- Part No.:
- MMBZ5264BLT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ5264BLT1G.pdf
- Description:
- DIODE ZENER 60V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,195
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Product details
Overview
MMBZ5264BLT1G from onsemi is a 60 V nominal Zener diode in SOT-23 package, rated for 225 mW power dissipation on FR-5 board, with 2.1 mA test current (IZT), 170 Ω dynamic impedance (ZZT), and 0.1 μA leakage at 46 V reverse bias. It provides precision voltage regulation in space-constrained portable electronics and high-density PCBs.
For engineers reviewing the MMBZ5264BLT1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (556 °C/W), ESD rating (>16 kV HBM), cathode-anode polarity marking, and Pb-free RoHS-compliant packaging.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown at precisely controlled Zener voltage (60 V ±5%) when biased above VR = 46 V. Its 170 Ω dynamic impedance at IZT = 2.1 mA ensures stable regulation under moderate load transients.
The SOT-23 package features pin 1 (anode), pin 2 (no connection), and pin 3 (cathode), with cathode polarity indicated by a band. Thermal performance is specified for FR-5 board (225 mW @ 25°C, derated 1.8 mW/°C) and alumina substrate (300 mW @ 25°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V nominal, min 57.0 V / max 63.0 V @ IZT = 2.1 mA - defines regulated output voltage tolerance band |
| Power Dissipation (PD) | 225 mW on FR-5 board @ 25°C - sets maximum continuous power handling in standard PCB layout |
| Zener Impedance (ZZT) | 170 Ω @ IZT = 2.1 mA - determines output voltage variation under small-signal AC load changes |
| Leakage Current (IR) | 0.1 μA @ VR = 46 V - specifies off-state conduction below breakdown, critical for low-power standby circuits |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - enables robust handling in automated assembly without external protection |
| Thermal Resistance (RJA) | 556 °C/W on FR-5 board - quantifies junction-to-ambient temperature rise per watt, guiding thermal design margin |
| Package | SOT-23 (TO-236), 2.90 × 1.30 × 1.00 mm - supports high-density placement and reflow-compatible surface mount assembly |
Pinout & Package
SOT-23 plastic surface-mount package with void-free thermosetting case, corrosion-resistant finish, and UL 94 V-0 flammability rating. Cathode identified by polarity band. Maximum soldering temperature: 260°C for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node in reverse-bias configuration; required for proper Zener conduction path |
| 2 | No Connection | Internally unconnected terminal - must remain floating; no PCB trace or pad required |
| 3 | Cathode | Connected to higher-potential node; polarity band on package aligns with this terminal for visual orientation |
Key Features
| Feature | Design Value |
|---|---|
| 225 mW power rating on FR-5 board | Enables use in compact consumer devices without heatsinking while maintaining safe junction temperature |
| ESD rating >16 kV (HBM) | Eliminates need for external ESD protection in handheld and portable designs during board assembly and field operation |
| Pb-free, halogen-free/BFR-free, RoHS-compliant | Meets global environmental compliance requirements for commercial and industrial end products |
| Small SOT-23 footprint (2.90 × 1.30 mm) | Supports ≥0.5 mm trace spacing and fine-pitch routing in high-density mobile PCB layouts |
| −65°C to +150°C operating range | Validates functionality across automotive cabin, industrial control, and outdoor embedded environments |
Applications
| Smartphone Power Rail Clamping | USB Port Overvoltage Protection |
|---|---|
|
Use Scenario: Clamp transient surges on 5 V USB VBUS line during hot-plug or ESD events. IC Role / Device Role / Timing Role: Two-terminal shunt regulator acting as voltage clamp between VBUS and GND. Use Value: Limits peak voltage to ≤63 V using 60 V Zener breakdown, protecting downstream USB controller ICs rated for 5.5 V absolute max. |
Use Scenario: Protect microcontroller I/O pins from accidental 12 V misconnection in accessory docking interfaces. IC Role / Device Role / Timing Role: Standby-mode Zener clamp referenced to system ground, activated only during overvoltage fault. Use Value: Withstands 0.1 μA leakage at 46 V, ensuring negligible standby current draw while providing immediate clamping at 57–63 V. |
| Industrial Sensor Signal Conditioning | Medical Wearable Battery Monitoring |
|
Use Scenario: Stabilize reference voltage for analog front-end ADC in 24 V industrial sensor nodes. IC Role / Device Role / Timing Role: Precision voltage reference source supplying bias to op-amp input stage. Use Value: 170 Ω dynamic impedance ensures <10 mV output shift under 50 μA load variation, meeting 12-bit ADC accuracy requirements. |
Use Scenario: Monitor lithium-ion battery pack voltage via resistive divider with Zener-clamped input to MCU ADC. IC Role / Device Role / Timing Role: Input protection and voltage limiting element in high-impedance sensing path. Use Value: 60 V rating accommodates up to 16-cell packs (64 V full charge), while 225 mW rating prevents thermal runaway during sustained overvoltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C62LT1G | 62 V nominal, 300 mW rating, 100 Ω ZZT @ 5 mA - higher power but looser 5% tolerance and different test current | Requires recalculation of series resistor for same IZT; better suited for higher-current regulation where 62 V matches system margin | Select when higher power headroom and lower dynamic impedance are prioritized over exact 60 V match |
| SZMMBZ5264BLT1G | Identical electrical specs, AEC-Q101 qualified, PPAP-capable - same Zener voltage, impedance, and leakage, but automotive-grade process control | Required for automotive infotainment or body control modules needing certified reliability and change control | Choose for automotive OEM programs where qualification documentation and supply chain traceability are mandatory |
Compared with MMBZ5264BLT1G, BZX84-C62LT1G offers higher power and lower impedance but shifts regulation to 62 V with different test conditions, while SZMMBZ5264BLT1G delivers identical performance with automotive-grade validation-making it a drop-in replacement only when AEC-Q101 compliance is required.
Availability
MMBZ5264BLT1G is available at Aetrix Electronics and suitable for smartphone power rail clamping, USB port overvoltage protection, and industrial sensor signal conditioning requiring stable component supply, RoHS compliance, and SOT-23 surface-mount compatibility.
Supply support for MMBZ5264BLT1G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MMBZ52xxBLT1G series is designed for compact, high-reliability voltage regulation in portable and space-constrained electronics, emphasizing low-profile packaging, high ESD robustness, and broad Zener voltage coverage (2.4 V to 91 V).
FAQ
What is the Zener voltage tolerance for MMBZ5264BLT1G?
The MMBZ5264BLT1G has a nominal Zener voltage of 60 V with a tolerance of ±5%, meaning the actual measured voltage at IZT = 2.1 mA falls between 57.0 V and 63.0 V. This tolerance is guaranteed across the full operating temperature range of −65°C to +150°C and is verified per onsemi's production test flow. The MMBZ5264BLT1G datasheet specifies these limits in the Electrical Characteristics table on page 3.
Does MMBZ5264BLT1G have a functional pin 2 connection?
No, pin 2 of the MMBZ5264BLT1G is internally not connected (NC). As confirmed in the marking diagram and mechanical outline (Style 8), only pin 1 (anode) and pin 3 (cathode) are electrically active. Pin 2 must remain unconnected on the PCB - no trace, pad, or via should be routed to it. This NC configuration is consistent across the entire MMBZ52xxBLT1G series.
What is the maximum allowable reverse leakage current for MMBZ5264BLT1G?
The MMBZ5264BLT1G exhibits a maximum reverse leakage current (IR) of 0.1 μA when biased at VR = 46 V, as specified in the Electrical Characteristics table. This value is measured at TA = 25°C and represents worst-case off-state conduction well below breakdown. At lower voltages (e.g., 30 V), leakage drops further - typically <10 nA - making the MMBZ5264BLT1G suitable for ultra-low-power monitoring circuits.
Can MMBZ5264BLT1G be used on FR-4 board material?
Yes, the MMBZ5264BLT1G is rated for 225 mW power dissipation on FR-5 board, and while FR-4 is not explicitly called out in the Absolute Maximum Ratings table, its thermal performance on FR-4 is comparable due to similar thermal conductivity. Designers should apply the same 1.8 mW/°C derating above 25°C and verify junction temperature using RJA = 556 °C/W. The MMBZ5264BLT1G package is fully compatible with standard FR-4 reflow profiles.
Is MMBZ5264BLT1G compliant with automotive qualification standards?
The standard MMBZ5264BLT1G is not AEC-Q101 qualified. However, its automotive-grade counterpart - the SZMMBZ5264BLT1G - shares identical electrical specifications (60 V Zener, 170 Ω ZZT, 0.1 μA IR) and adds AEC-Q101 qualification, PPAP capability, and enhanced process controls. For automotive applications requiring formal qualification, the SZMMBZ5264BLT1G must be selected instead of the MMBZ5264BLT1G.
MMBZ5264BLT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 60 V
- Tolerance:
- ±5%
- Power - Max:
- 225 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:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
MMBZ5264BLT1G FAQ
1.How can I place an order for MMBZ5264BLT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5264BLT1G 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 MMBZ5264BLT1G reliable?
The price and inventory of MMBZ5264BLT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ5264BLT1G is usually 5 days.
3.What payment methods are accepted for MMBZ5264BLT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5264BLT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5264BLT1G?
MMBZ5264BLT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5264BLT1G 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 MMBZ5264BLT1G?
For technical support, including MMBZ5264BLT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5264BLT1G requirements.
6.How does Aetrix verify that MMBZ5264BLT1G is sourced from the original manufacturer or authorized distributors?
All MMBZ5264BLT1G 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 MMBZ5264BLT1G meets industry standards.
7.What is the process for return or replacement of MMBZ5264BLT1G?
All MMBZ5264BLT1G units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5264BLT1G, 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 MMBZ5264BLT1G part is unused and in its original packaging.
Return procedure for MMBZ5264BLT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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