My Inquiry
My Account
onsemi MMBZ5265ELT1
- Part No.:
- MMBZ5265ELT1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
MMBZ5265ELT1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:24,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMBZ5265ELT1 from ON Semiconductor is a 62 V nominal Zener voltage regulator diode in SOT-23 package, rated for 225 mW power dissipation on FR-5 board at 25°C, with 1400 Ω maximum Zener impedance at 2 mA test current and 0.1 µA reverse leakage at 47 V, used for precision voltage reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the MMBZ5265ELT1 datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5% at 62 V), thermal resistance (556 °C/W on FR-5), ESD rating (>16 kV HBM), peak pulse power (225 W), and Pb-free SOT-23 packaging compatibility with automated assembly.
Technical Context
This device operates as a two-terminal voltage reference, conducting in reverse bias above its specified Zener breakdown voltage of 58.9–65.1 V. Its 2 mA Zener test current and 185 mA maximum Zener knee current define stable regulation boundaries, while the 225 mW steady-state power limit constrains continuous operation in thermally limited PCB layouts.
The SOT-23 package features a no-connect (NC) terminal (Pin 2), enabling mechanical stability without electrical function. Its 0.1 µA leakage at VR = 47 V ensures low standby current draw in battery-powered systems, and the −65°C to +150°C junction temperature range supports industrial and automotive ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 58.9–65.1 V @ IZT = 2 mA - defines precise clamping threshold for 62 V nominal regulation |
| Zener Impedance (ZZT) | 1400 Ω max @ IZT = 2 mA - limits regulation error under load variation |
| Power Dissipation (PD) | 225 mW on FR-5 @ TA = 25°C - sets maximum continuous DC power before thermal derating |
| Reverse Leakage (IR) | 0.1 µA @ VR = 47 V - ensures minimal quiescent current in standby mode |
| ESD Rating | Class 3 (>16 kV) per HBM - enables robust handling in manual and automated assembly |
| Thermal Resistance (RJA) | 556 °C/W on FR-5 - determines junction temperature rise per milliwatt dissipated |
| Peak Pulse Power | 225 W @ 8 × 20 µs - supports transient surge suppression without failure |
Pinout & Package
SOT-23 (Case 318, Style 8) surface-mount package with 1.0 mm height, 2.9 mm length, and 1.3 mm width; void-free thermosetting plastic case rated UL 94 V-0, corrosion-resistant finish, and 260°C soldering tolerance for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward-biased terminal; connects to lower-potential node during regulation |
| 2 | No Connection | Mechanically present but electrically isolated; no PCB trace required |
| 3 | Cathode | Zener breakdown terminal; connects to higher-potential node for reverse-bias operation |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free SOT-23 packaging | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles |
| High ESD immunity | Withstands >16 kV human-body-model discharge without parameter shift or failure |
| Optimized for high-density layout | 0.95 mm lead pitch and 2.9 × 1.3 mm footprint enable placement near IC power pins |
| Stable regulation across temperature | Temperature coefficient optimized for 62 V grade (typical ±0.05%/°C near nominal) |
| Automated assembly compatibility | Marking "BK1" and polarity band ensure correct orientation in pick-and-place feeders |
Applications
| Smartphone Power Rail Protection | IoT Sensor Node Reference |
|---|---|
Use Scenario: Clamping 5 V USB input rail against ESD and load-dump transients in compact smartphone PMIC subsystems. IC Role / Device Role / Timing Role: Zener voltage regulator providing overvoltage protection and stable reference for LDO feedback networks. Use Value: 62 V breakdown prevents false triggering during normal 5 V operation while absorbing 225 W pulses without degradation. | Use Scenario: Generating accurate 3.3 V reference from 3.6 V Li-ion battery supply in ultra-low-power environmental sensors. IC Role / Device Role / Timing Role: Precision shunt reference establishing stable bias point for ADC and MCU analog peripherals. Use Value: 0.1 µA leakage at 47 V ensures <1 nA current draw below regulation threshold, preserving battery life over multi-year deployments. |
| Industrial PLC Input Conditioning | Automotive Body Control Module Clamp |
Use Scenario: Protecting 24 V digital input channels from inductive kickback and field-wiring surges in factory automation controllers. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting input voltage to safe levels for optocoupler or Schmitt-trigger interface ICs. Use Value: 225 mW steady-state dissipation and 556 °C/W RJA allow sustained clamping in convection-cooled enclosures without heatsinking. | Use Scenario: Safeguarding microcontroller I/O pins against load dump events (up to 40 V) in 12 V automotive body electronics. IC Role / Device Role / Timing Role: Reverse-biased Zener clamp placed between I/O line and ground to divert surge energy away from sensitive logic. Use Value: 1400 Ω ZZT ensures minimal voltage overshoot during fast transients, maintaining signal integrity during ISO 7637-2 pulse 5a events. |
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-C62LT1G | Same 62 V nominal Zener voltage, but 300 mW power rating and 100 Ω ZZT @ 5 mA - lower dynamic impedance at higher test current | Higher power handling suits higher-current regulation; tighter ZZT improves line regulation in active feedback loops | Select BZX84-C62LT1G when circuit requires sub-100 Ω impedance or >225 mW continuous dissipation |
| MMBZ5265BS | Same electrical specs but SC-70 (SOT-323) package - 20% smaller footprint and 0.9 mm height vs. SOT-23's 1.0 mm | Enables denser routing in ultra-thin wearable PCBs where vertical clearance is constrained | Select MMBZ5265BS only if board layout allows SC-70 land pattern and assembly process supports finer pitch |
Compared with MMBZ5265ELT1, BZX84-C62LT1G offers superior dynamic regulation at higher currents but requires different thermal management, while MMBZ5265BS delivers identical electrical performance in a smaller footprint-neither is pin-compatible due to differing pinouts and package outlines.
Availability
MMBZ5265ELT1 is available at Aetrix Electronics and suitable for smartphone power rail protection, IoT sensor node reference, and industrial PLC input conditioning requiring stable component supply with full traceability and lifecycle support.
Supply support for MMBZ5265ELT1 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
ON Semiconductor is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MMBZ52xxELT1 series is designed specifically for space-constrained voltage regulation and transient suppression in portable and high-density electronics, emphasizing low-profile SOT-23 packaging, high ESD robustness, and tight Zener voltage tolerances.
FAQ
What is the Zener voltage tolerance of MMBZ5265ELT1?
The MMBZ5265ELT1 has a Zener voltage range of 58.9 V to 65.1 V at IZT = 2 mA, corresponding to a ±5% tolerance around the nominal 62 V rating. This tolerance is guaranteed across the full operating temperature range of −65°C to +150°C and is verified per ON Semiconductor's production test flow using pulse-current measurement methods.
Can MMBZ5265ELT1 be used in place of a 6.2 V Zener diode?
No, MMBZ5265ELT1 is not interchangeable with 6.2 V Zener diodes. Its nominal Zener voltage is 62 V-not 6.2 V-and its electrical characteristics (including ZZT, IZK, and leakage) are specified only for the 58.9–65.1 V range. Substituting it for a 6.2 V device would result in catastrophic failure or non-regulation in circuits expecting low-voltage clamping.
Is Pin 2 of MMBZ5265ELT1 electrically functional?
No, Pin 2 of MMBZ5265ELT1 is designated "No Connection" per ON Semiconductor's official datasheet and marking diagram. It is a mechanical stub for package stability and must remain unconnected in PCB layout; routing or grounding Pin 2 may cause mechanical stress or unintended parasitic coupling but introduces no electrical functionality.
What is the maximum continuous power dissipation for MMBZ5265ELT1 on an FR-5 board?
The maximum continuous power dissipation for MMBZ5265ELT1 on an FR-5 board is 225 mW at ambient temperature (TA) = 25°C, derating linearly by 1.8 mW/°C above that temperature. This rating assumes standard JEDEC-defined board construction (1.0 × 0.75 × 0.62 inches) and is validated per ON Semiconductor's thermal characterization methodology.
Does MMBZ5265ELT1 meet RoHS requirements?
Yes, MMBZ5265ELT1 meets RoHS Directive 2011/65/EU requirements. The "G" suffix in the part number (as shown in the ordering table) explicitly denotes Pb-free packaging, and ON Semiconductor confirms compliance via material declarations and third-party testing reports aligned with IEC 62321 standards.
MMBZ5265ELT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MMBZ5265ELT1 FAQ
1.How can I place an order for MMBZ5265ELT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5265ELT1 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 MMBZ5265ELT1 reliable?
The price and inventory of MMBZ5265ELT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ5265ELT1 is usually 5 days.
3.What payment methods are accepted for MMBZ5265ELT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5265ELT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5265ELT1?
MMBZ5265ELT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5265ELT1 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 MMBZ5265ELT1?
For technical support, including MMBZ5265ELT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5265ELT1 requirements.
6.How does Aetrix verify that MMBZ5265ELT1 is sourced from the original manufacturer or authorized distributors?
All MMBZ5265ELT1 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 MMBZ5265ELT1 meets industry standards.
7.What is the process for return or replacement of MMBZ5265ELT1?
All MMBZ5265ELT1 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5265ELT1, 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 MMBZ5265ELT1 part is unused and in its original packaging.
Return procedure for MMBZ5265ELT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5265ELT1 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…
