My Inquiry
My Account
onsemi SZMM5Z15VT5G
- Part No.:
- SZMM5Z15VT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z15VT5G.pdf
- Description:
- DIODE ZENER 15V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,960
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZMM5Z15VT5G from onsemi is a 15 V, ±5% tolerance Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 30 Ω maximum Zener impedance at 5 mA test current and 0.05 μA reverse leakage at 10.5 V. It provides precision voltage regulation in space-constrained portable electronics such as smartphone power rails and USB interface protection.
For engineers reviewing the SZMM5Z15VT5G datasheet, pinout, applications, or equivalent options, key selection criteria include its 15 V nominal Zener voltage, 500 mW power rating, SOD-523 footprint compatibility, AEC-Q101 qualification, and Class 3 HBM ESD robustness (>16 kV).
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp or regulate voltage at 15 V with ±5% tolerance. Its thermal resistance (RJA = 250 °C/W) and derating curve define safe operating limits up to +150 °C junction temperature.
Designed for low-capacitance (<110 pF at 0 V, 1 MHz), high-ESD-tolerance applications, it delivers stable regulation under transient overvoltage conditions while maintaining minimal parasitic loading on sensitive signal lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V nominal, 14.3–15.8 V range at IZT = 5 mA - defines precise clamping threshold for 12–15 V rail protection |
| Power Rating (PD) | 500 mW at TA = 25 °C - supports sustained regulation in compact PCB layouts without forced cooling |
| Zener Impedance (ZZT) | 30 Ω max at IZT = 5 mA - ensures tight voltage regulation under dynamic load transients |
| Reverse Leakage (IR) | 0.05 μA max at VR = 10.5 V - minimizes standby current in battery-powered systems |
| Capacitance (C) | 110 pF max at VR = 0 V, f = 1 MHz - preserves signal integrity in high-speed data line protection |
| ESD Rating | Class 3 (>16 kV HBM) - withstands electrostatic discharge events common in handheld assembly and end-user handling |
| Operating Temp | −65 °C to +150 °C - enables use in automotive under-hood and industrial control environments |
Pinout & Package
SOD-523 surface-mount package: 1.20 mm × 0.80 mm body, 0.70 mm height, matte tin lead finish, MSL 1, reflow compatible up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output or higher-potential node; polarity band identifies cathode for correct PCB orientation |
| 2 | Anode | Connected to ground or lower-potential reference; completes reverse-bias path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including infotainment power supplies and sensor biasing circuits |
| Pb-Free & RoHS Compliant | Meets global environmental compliance requirements for consumer and industrial electronics manufacturing |
| Low Profile SOD-523 | Enables placement on dense PCBs where height clearance < 0.7 mm is required, e.g., stacked modules |
| Stable Temperature Coefficient | ±9.2 mV/°C typical - maintains regulation accuracy across −40 °C to +125 °C ambient ranges |
| High ESD Robustness | Withstands >16 kV human-body-model discharges without parameter shift - reduces field failure risk in unshielded interfaces |
Applications
| USB 2.0 Data Line Protection | Automotive Infotainment Power Rail Clamp |
|---|---|
Use Scenario: Protects D+ and D− lines from ESD and voltage surges during hot-plug events in portable accessories. IC Role / Device Role: Bidirectional transient voltage suppressor placed between data line and ground. Use Value: 110 pF capacitance avoids signal distortion at 480 Mbps; 15 V clamping prevents damage to USB PHY transceivers. | Use Scenario: Clamps 12 V supply rail transients caused by load-dump or alternator spikes in head unit power inputs. IC Role / Device Role: Precision shunt regulator providing overvoltage protection upstream of DC-DC converters. Use Value: AEC-Q101 qualification ensures reliability under automotive thermal cycling; 500 mW rating handles short-duration spikes without failure. |
| Smartphone Battery Charger Feedback Loop | Industrial Sensor Signal Conditioning |
Use Scenario: Sets reference voltage for charger IC feedback network to maintain accurate 4.2 V battery termination voltage. IC Role / Device Role: Stable voltage reference source in isolated feedback path of flyback or buck-boost charger. Use Value: ±5% tolerance and low tempco ensure ≤1% output voltage drift over −20 °C to +60 °C operating range. | Use Scenario: Provides stable bias voltage for analog front-end op-amps measuring 4–20 mA loop signals in PLC I/O modules. IC Role / Device Role: Low-noise, low-drift voltage reference for precision current-to-voltage conversion. Use Value: 0.05 μA leakage prevents loading of high-impedance sensor nodes; 150 °C max TJ supports extended industrial temperature operation. |
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-C15 | 15 V, ±5%, SOD-523, 500 mW, but not AEC-Q101 qualified; 120 pF capacitance | Lacks automotive qualification; suitable for commercial-grade portable devices only | Select when automotive compliance is unnecessary and cost sensitivity outweighs qualification requirements |
| MMSZ5245B | 15 V, ±5%, SOD-123, 500 mW, AEC-Q101 qualified, but larger 2.8 mm × 1.6 mm footprint | Requires PCB layout change due to different package; higher thermal resistance (350 °C/W) | Select when board space allows larger package and legacy SOD-123 design reuse is prioritized |
Compared with BZX584-C15 and MMSZ5245B, SZMM5Z15VT5G uniquely combines AEC-Q101 qualification, ultra-compact SOD-523 size, and low 110 pF capacitance-making it optimal for next-generation automotive and high-density portable designs where footprint, reliability, and signal integrity are jointly constrained.
Availability
SZMM5Z15VT5G is available at Aetrix Electronics and suitable for USB interface protection, automotive infotainment power clamping, and smartphone battery charger feedback requiring stable component supply across production lifecycles.
Supply support for SZMM5Z15VT5G 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.
SZMM5ZxxxT5G series is part of onsemi's precision Zener regulator portfolio designed specifically for space-constrained, high-reliability applications demanding AEC-Q101 qualification and low-profile packaging.
FAQ
What is the nominal Zener voltage and tolerance of SZMM5Z15VT5G?
SZMM5Z15VT5G has a nominal Zener voltage of 15 V with a standard tolerance of ±5%, measured at a test current of 5 mA. The actual breakdown voltage falls within 14.3 V to 15.8 V under specified conditions, ensuring predictable clamping behavior in voltage regulation circuits.
Is SZMM5Z15VT5G qualified for automotive applications?
Yes, SZMM5Z15VT5G carries the "SZ" prefix indicating AEC-Q101 qualification and PPAP capability. It is explicitly rated for automotive use, including under-hood and infotainment systems, with validated performance across −65 °C to +150 °C junction temperature range.
What is the maximum power dissipation and thermal derating behavior of SZMM5Z15VT5G?
SZMM5Z15VT5G is rated for 500 mW steady-state power dissipation at 25 °C ambient, with linear derating of 4.0 mW/°C above that temperature. Its thermal resistance is 250 °C/W on FR-4 board, meaning junction temperature rises 250 °C per watt dissipated under natural convection.
Does SZMM5Z15VT5G have ESD protection, and what level is specified?
SZMM5Z15VT5G is rated for Class 3 HBM ESD protection with >16 kV withstand capability. This level exceeds IEC 61000-4-2 Level 4 requirements and ensures robustness against handling and system-level electrostatic events in portable and automotive environments.
What package type and dimensions does SZMM5Z15VT5G use?
SZMM5Z15VT5G uses the SOD-523 package (Case 502), measuring 1.20 mm × 0.80 mm × 0.70 mm. It features a banded cathode marking, matte tin leads, MSL 1 moisture sensitivity, and full compatibility with standard 260 °C reflow profiles.
SZMM5Z15VT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZMM5Z15VT5G FAQ
1.How can I place an order for SZMM5Z15VT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z15VT5G 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 SZMM5Z15VT5G reliable?
The price and inventory of SZMM5Z15VT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z15VT5G is usually 5 days.
3.What payment methods are accepted for SZMM5Z15VT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z15VT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z15VT5G?
SZMM5Z15VT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z15VT5G 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 SZMM5Z15VT5G?
For technical support, including SZMM5Z15VT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z15VT5G requirements.
6.How does Aetrix verify that SZMM5Z15VT5G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z15VT5G 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 SZMM5Z15VT5G meets industry standards.
7.What is the process for return or replacement of SZMM5Z15VT5G?
All SZMM5Z15VT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z15VT5G, 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 SZMM5Z15VT5G part is unused and in its original packaging.
Return procedure for SZMM5Z15VT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM5Z15VT5G 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…
