My Inquiry
My Account
onsemi SZMMBZ5264BLT1G
- Part No.:
- SZMMBZ5264BLT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZMMBZ5264BLT1G.pdf
- Description:
- DIODE ZENER 60V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:14,670
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZMMBZ5264BLT1G from onsemi is a 60 V ±5% Zener diode in SOT-23 package, rated for 225 mW power dissipation on FR-5 board, with 170 Ω dynamic impedance at 2.1 mA test current and 0.1 μA reverse leakage at 46 V. It provides precision voltage regulation in space-constrained power rail protection circuits for automotive infotainment modules.
For engineers reviewing the SZMMBZ5264BLT1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (556 °C/W), AEC-Q101 qualification, ESD rating (>16 kV HBM), and SOT-23 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference diode with cathode-anode polarity, designed for reverse-bias regulation only. Its 60 V nominal Zener voltage exhibits a positive temperature coefficient near zero crossing, enabling stable regulation across −65°C to +150°C junction temperature range.
The SOT-23 package features a no-connect terminal (Pin 2), allowing unambiguous anode (Pin 1) and cathode (Pin 3) identification via marking band. Thermal performance is specified for both FR-5 (225 mW) and alumina substrate (300 mW) mounting conditions, supporting design flexibility in thermally demanding automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 57.0–63.0 V @ IZT = 2.1 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 225 mW on FR-5 board @ 25°C - sets maximum continuous power handling without heatsinking |
| Zener Impedance (ZZT) | 1400 Ω @ IZT = 2.1 mA - determines AC voltage variation under load transients |
| Reverse Leakage (IR) | 0.1 μA @ VR = 46 V - ensures minimal standby current in undervoltage lockout circuits |
| ESD Rating | Class 3 (>16 kV HBM) - enables robust handling in automated SMT assembly lines without special precautions |
| Thermal Resistance (RJA) | 556 °C/W on FR-5 - quantifies junction-to-ambient temperature rise per watt dissipated |
| AEC-Q101 Qualified | Yes - confirms reliability validation for automotive electronic control units per stress test requirements |
Pinout & Package
SOT-23 (TO-236) surface-mount plastic package, 2.90 × 1.30 × 1.00 mm body size, void-free thermosetting case with corrosion-resistant finish, UL 94 V-0 flammability rating, and cathode indicated by polarity band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node in reverse-bias configuration; must be routed to ground or return path |
| 2 | No Connection | Internally unconnected; must remain floating-no PCB trace or pad required |
| 3 | Cathode | Connected to regulated voltage node; polarity band on package aligns with this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Pb-Free, Halogen-Free/BFR-Free | Meets RoHS Directive 2011/65/EU and automotive material compliance requirements |
| Automotive-Grade Qualification | SZ-prefix denotes AEC-Q101 qualification and PPAP capability for Tier 1 automotive supply chains |
| High-Density Mounting Support | SOT-23 footprint enables placement in <1.5 mm pitch routing zones on multi-layer PCBs |
| ESD Robustness | Class 3 human-body-model rating eliminates need for external ESD protection in most board-level designs |
| Thermal Stability | Specified operation from −65°C to +150°C junction temperature supports under-hood automotive deployment |
Applications
| Automotive Infotainment Power Rail Clamp | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping 12 V supply rail against load-dump transients in head-unit power management. IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbing surge energy above 60 V threshold. Use Value: Prevents overvoltage damage to downstream DC-DC converters and audio amplifiers without adding active circuitry. |
Use Scenario: Providing stable 60 V reference for isolated analog front-end calibration in pressure transducers. IC Role / Device Role / Timing Role: Passive voltage reference source for ratiometric ADC biasing in harsh industrial environments. Use Value: Enables <±0.5% full-scale accuracy over temperature without trimming resistors or op-amp buffers. |
| Portable Medical Device Battery Monitor | Telecom Line Interface Overvoltage Protection |
Use Scenario: Monitoring Li-ion battery pack voltage during charging cycles in handheld diagnostic tools. IC Role / Device Role / Timing Role: Zener-based comparator input threshold setpoint for charge termination logic. Use Value: Delivers repeatable 60 V trip point with <10 ppm/°C drift, reducing firmware compensation overhead. |
Use Scenario: Protecting Ethernet PHY interface ICs from induced surges on PoE-powered network ports. IC Role / Device Role / Timing Role: Primary clamping element in hybrid TVS-Zener cascade architecture. Use Value: Absorbs >500 W peak pulse energy while maintaining <100 ns response time to meet IEC 61000-4-5 Level 4. |
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, ±5% tolerance, 300 mW PD, same SOT-23 package but non-automotive grade | Lacks AEC-Q101 qualification and PPAP support; not approved for safety-critical automotive subsystems | Select when cost sensitivity outweighs automotive qualification requirements and thermal margin exceeds 225 mW |
| SZBZX84C62LT1G | 62 V nominal, ±5% tolerance, 300 mW PD, AEC-Q101 qualified, same SZ-prefix automotive designation | Higher power rating allows operation at elevated ambient temperatures without derating | Choose for identical automotive use cases where higher power headroom improves long-term reliability margin |
Compared with SZMMBZ5264BLT1G, BZX84-C62LT1G offers higher power but lacks automotive qualification, while SZBZX84C62LT1G matches qualification level but shifts nominal voltage by +2 V and increases power handling-requiring layout review for thermal pad area and trace width adjustments.
Availability
SZMMBZ5264BLT1G is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, portable medical diagnostics, and telecom line interface protection requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SZMMBZ5264BLT1G 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 is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications, with core expertise in power management, analog, sensors, and connectivity.
SZMMBZ5264BLT1G belongs to the SZMMBZ52xxBLT1G series of AEC-Q101-qualified Zener diodes engineered specifically for automotive electronics requiring high-reliability voltage regulation in compact SOT-23 packages.
FAQ
What is the Zener voltage tolerance for SZMMBZ5264BLT1G?
The SZMMBZ5264BLT1G has a Zener voltage tolerance of ±5% around its nominal 60 V rating, meaning the actual measured VZ falls between 57.0 V and 63.0 V at IZT = 2.1 mA and TA = 25°C. This tolerance is guaranteed per onsemi's production testing and applies to all units shipped as SZMMBZ5264BLT1G.
Is SZMMBZ5264BLT1G compatible with lead-free reflow soldering processes?
Yes, SZMMBZ5264BLT1G is Pb-free and rated for peak reflow temperatures up to 260°C for 10 seconds, fully compliant with IPC/JEDEC J-STD-020 moisture sensitivity level 1 requirements. The thermosetting plastic case and corrosion-resistant finish ensure reliable wetting and joint integrity during standard lead-free reflow profiles.
Does SZMMBZ5264BLT1G have a connected Pin 2?
No, SZMMBZ5264BLT1G has Pin 2 designated as "No Connection" per the official datasheet pinout (Style 8). This terminal is internally unconnected and must remain electrically floating on the PCB-no trace, pad, or thermal relief should be attached to it in layout design.
How does the ESD rating of SZMMBZ5264BLT1G impact system-level design?
SZMMBZ5264BLT1G carries Class 3 HBM ESD rating (>16 kV), which eliminates the need for additional ESD protection components in most board-level implementations. This simplifies layout, reduces BOM count, and improves signal integrity in high-speed or low-noise analog paths where parasitic capacitance from extra protection devices would degrade performance.
Can SZMMBZ5264BLT1G replace MMBZ5264BLT1G in existing designs?
Yes, SZMMBZ5264BLT1G is a direct drop-in replacement for MMBZ5264BLT1G in terms of electrical specifications, pinout, and package dimensions. The "SZ" prefix indicates enhanced process controls and AEC-Q101 qualification, making it suitable for automotive applications where the standard "MM" version is not approved-no PCB changes are required.
SZMMBZ5264BLT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
SZMMBZ5264BLT1G FAQ
1.How can I place an order for SZMMBZ5264BLT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMMBZ5264BLT1G 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 SZMMBZ5264BLT1G reliable?
The price and inventory of SZMMBZ5264BLT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMMBZ5264BLT1G is usually 5 days.
3.What payment methods are accepted for SZMMBZ5264BLT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMMBZ5264BLT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMMBZ5264BLT1G?
SZMMBZ5264BLT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMMBZ5264BLT1G 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 SZMMBZ5264BLT1G?
For technical support, including SZMMBZ5264BLT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMMBZ5264BLT1G requirements.
6.How does Aetrix verify that SZMMBZ5264BLT1G is sourced from the original manufacturer or authorized distributors?
All SZMMBZ5264BLT1G 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 SZMMBZ5264BLT1G meets industry standards.
7.What is the process for return or replacement of SZMMBZ5264BLT1G?
All SZMMBZ5264BLT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMMBZ5264BLT1G, 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 SZMMBZ5264BLT1G part is unused and in its original packaging.
Return procedure for SZMMBZ5264BLT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMMBZ5264BLT1G Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
