My Inquiry
My Account
onsemi SZMM3Z5V6T1G
- Part No.:
- SZMM3Z5V6T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z5V6T1G.pdf
- Description:
- DIODE ZENER 5.6V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,456
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZMM3Z5V6T1G from onsemi is a 5.6 V ±5% Zener voltage regulator diode in SOD−323 package, rated for 300 mW steady-state power dissipation at 25°C, with 40 Ω maximum Zener impedance at 5 mA test current and 1 μA reverse leakage at 2.0 V, used for precision voltage reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM3Z5V6T1G datasheet, pinout, applications, or equivalent options, key selection factors include its AEC−Q101 qualification, −2.0 mV/°C temperature coefficient, 200 pF capacitance at 0 V bias, 16 kV HBM ESD rating, and SOD−323 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference, conducting in reverse breakdown to clamp voltage across load circuits. Its Zener voltage is specified at 5.2–6.0 V (nominal 5.6 V) with tight 5% tolerance, measured under 5 mA DC test current at 25°C ambient.
Thermal derating begins above 25°C at 2.4 mW/°C, with junction-to-ambient thermal resistance of 416°C/W on FR−4 board. It features cathode polarity marking, Pb−free plating, UL 94 V−0 flammability rating, and supports reflow soldering up to 260°C for 10 seconds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2–6.0 V nominal 5.6 V @ IZT = 5 mA - defines stable regulation point for low-power reference circuits |
| Power Dissipation (PD) | 300 mW @ TA = 25°C - sets maximum continuous power handling on standard FR−4 PCB |
| Zener Impedance (ZZT) | 40 Ω max @ IZT = 5 mA - indicates low dynamic resistance for stable regulation under varying load |
| Reverse Leakage (IR) | 1 μA max @ VR = 2.0 V - ensures minimal standby current in voltage-sense or clamping paths |
| Temperature Coefficient | −2.0 mV/°C - quantifies voltage drift with ambient temperature change, critical for stable references |
| Capacitance (C) | 200 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent designs |
| ESD Rating | Class 3 (>16 kV) per HBM - enables robust handling in manual assembly and field-deployed portable devices |
Pinout & Package
SZMM3Z5V6T1G is housed in a SOD−323 surface-mount plastic package (Case 477, Style 1), measuring 1.7 mm × 1.25 mm × 0.9 mm, with cathode indicated by a polarity band. Total weight is 4.507 mg per unit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased Zener terminal | Connected to higher-potential node in regulation/clamp configuration; polarity band identifies this terminal |
| 2 (Anode) | Reference/ground terminal | Typically tied to system ground or lower-voltage rail; completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualified | Validated for automotive applications requiring enhanced reliability, including temperature cycling and humidity testing |
| Pb−free construction | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 1 moisture sensitivity |
| Low-profile SOD−323 package | Enables placement in <1.0 mm height zones on ultra-thin mobile PCBs without mechanical interference |
| High ESD immunity | Withstands >16 kV human-body-model discharge without parameter shift-reduces need for external TVS in handheld interfaces |
| Tight Zener tolerance | ±5% voltage spread ensures predictable clamping thresholds across production lots for consistent circuit behavior |
Applications
| Smartphone Power Management | USB-C Port Protection |
|---|---|
|
Use Scenario: Regulating bias voltage for PMIC enable logic and monitoring ADC reference in compact smartphone mainboard. IC Role / Device Role / Timing Role: Two-terminal Zener shunt regulator providing stable 5.6 V reference independent of input ripple or load variation. Use Value: Maintains ±1% accuracy over −40°C to +85°C due to −2.0 mV/°C tempco and 40 Ω ZZT, enabling reliable power sequencing. |
Use Scenario: Clamping transient overvoltage on USB-C CC lines during hot-plug events in portable accessories. IC Role / Device Role / Timing Role: Fast-response voltage clamp limiting line voltage to ≤6.0 V before damage threshold of Type-C controller ICs. Use Value: 1 μA leakage at 2.0 V prevents false detection, while 16 kV HBM rating eliminates need for secondary ESD protection. |
| Wearable Sensor Node | Automotive Infotainment Display |
|
Use Scenario: Providing precise reference for analog front-end of optical heart-rate sensor in fitness tracker. IC Role / Device Role / Timing Role: Low-capacitance (200 pF) Zener stabilizing ADC reference rail without degrading signal bandwidth. Use Value: 200 pF capacitance minimizes phase shift in 100 kHz sensor excitation signals, preserving measurement fidelity. |
Use Scenario: Protecting backlight LED driver control inputs from load-dump transients in 12 V automotive display modules. IC Role / Device Role / Timing Role: Automotive-grade Zener (SZ-prefix) absorbing 300 mW surges per ISO 7637-2 Pulse 5a requirements. Use Value: AEC−Q101 qualification ensures operation at 150°C junction temperature and PPAP compliance for Tier-1 supply chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V6,115 | Same 5.6 V nominal, but 300 mW rating in SOD-323; higher ZZT (90 Ω vs. 40 Ω); no AEC−Q101 qualification | Lacks automotive qualification and tighter impedance spec; suitable for consumer-grade cost-sensitive designs | Prefer SZMM3Z5V6T1G where temperature stability and automotive compliance are required |
| MMSZ5232BT1G | 5.6 V Zener in SOD-123; 500 mW rating; 100 Ω ZZT; same −2.0 mV/°C tempco; Pb−free | Larger footprint (3.5 mm × 1.6 mm) limits use in ultra-dense layouts; higher power allows longer surge absorption | Choose SZMM3Z5V6T1G when board space is constrained and AEC−Q101 is mandatory |
Compared with BZX384-B5V6,115 and MMSZ5232BT1G, SZMM3Z5V6T1G uniquely combines automotive qualification, lowest Zener impedance in its class, and smallest SOD−323 footprint-making it optimal for space- and reliability-critical portable and automotive subsystems.
Availability
SZMM3Z5V6T1G is available at Aetrix Electronics and suitable for smartphone power management, USB-C port protection, wearable sensor nodes, and automotive infotainment displays requiring stable component supply across high-mix, low-volume production runs.
Supply support for SZMM3Z5V6T1G 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
SZMM3Z5V6T1G belongs to the MM3ZxxxT1G/SZMM3ZxxxT1G family of 300 mW Zener regulators designed specifically for space-constrained, high-reliability applications demanding AEC−Q101 compliance and low-profile packaging.
FAQ
What is the Zener voltage tolerance of SZMM3Z5V6T1G?
The SZMM3Z5V6T1G has a Zener voltage range of 5.2 V to 6.0 V at 5 mA test current, corresponding to a nominal 5.6 V with ±5% tolerance. This specification is guaranteed per the Electrical Characteristics table in the official onsemi datasheet (Rev. 11, September 2014), and applies under standard test conditions of TA = 25°C.
Is SZMM3Z5V6T1G suitable for automotive applications?
Yes, SZMM3Z5V6T1G is AEC−Q101 qualified and PPAP capable, as explicitly stated in the "Specification Features" section of the datasheet. The "SZ" prefix denotes automotive and other applications requiring unique site and control change requirements-making SZMM3Z5V6T1G appropriate for under-hood and infotainment systems meeting automotive reliability standards.
What is the maximum operating junction temperature for SZMM3Z5V6T1G?
The junction and storage temperature range for SZMM3Z5V6T1G is −65°C to +150°C, as specified in the Maximum Ratings table. This allows reliable operation in extended-temperature environments such as automotive engine compartments or industrial edge sensors where ambient temperatures exceed 105°C.
Does SZMM3Z5V6T1G have Pb−free construction?
Yes, SZMM3Z5V6T1G is a Pb−free device, confirmed in both the "Specification Features" and "ORDERING INFORMATION" sections of the datasheet. It uses Sn-only or Pb−Sn plating on leads and complies with RoHS Directive 2011/65/EU, with full documentation in onsemi's Soldering and Mounting Techniques Reference Manual (SOLDERRM/D).
What is the thermal resistance (RJA) of SZMM3Z5V6T1G on FR−4 board?
The junction-to-ambient thermal resistance (RJA) of SZMM3Z5V6T1G is 416°C/W when mounted on a single-sided FR−4 PCB with a 1 cm² copper pad, as specified in the Maximum Ratings table. This value determines the allowable power derating above 25°C ambient (2.4 mW/°C) and must be applied in thermal design calculations for sustained operation.
SZMM3Z5V6T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±7%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 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:
- SOD-323
SZMM3Z5V6T1G FAQ
1.How can I place an order for SZMM3Z5V6T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z5V6T1G 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 SZMM3Z5V6T1G reliable?
The price and inventory of SZMM3Z5V6T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z5V6T1G is usually 5 days.
3.What payment methods are accepted for SZMM3Z5V6T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z5V6T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z5V6T1G?
SZMM3Z5V6T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z5V6T1G 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 SZMM3Z5V6T1G?
For technical support, including SZMM3Z5V6T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z5V6T1G requirements.
6.How does Aetrix verify that SZMM3Z5V6T1G is sourced from the original manufacturer or authorized distributors?
All SZMM3Z5V6T1G 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 SZMM3Z5V6T1G meets industry standards.
7.What is the process for return or replacement of SZMM3Z5V6T1G?
All SZMM3Z5V6T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z5V6T1G, 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 SZMM3Z5V6T1G part is unused and in its original packaging.
Return procedure for SZMM3Z5V6T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM3Z5V6T1G 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…
