My Inquiry
My Account
onsemi SZMM5Z8V2ST1G
- Part No.:
- SZMM5Z8V2ST1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z8V2ST1G.pdf
- Description:
- DIODE ZENER 8.2V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,022
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZMM5Z8V2ST1G from onsemi is a 500 mW, ±5% tolerance Zener diode in SOD-523 package, with nominal Zener voltage 8.2 V at 5 mA test current, maximum Zener impedance 15 Ω at IZT, and reverse leakage ≤0.7 µA at 6.6 V. It provides precision voltage regulation in space-constrained portable electronics.
For engineers reviewing the SZMM5Z8V2ST1G datasheet, pinout, applications, or equivalent options, key selection criteria include tight voltage tolerance (±5%), low-profile SOD-523 footprint (1.20 mm × 0.80 mm), AEC-Q101 qualification, 16 kV HBM ESD rating, and thermal resistance of 250 °C/W on FR-4 board.
Technical Context
This device operates as a two-terminal voltage reference and overvoltage clamp, leveraging silicon PN junction breakdown at precisely controlled 8.2 V. Its design targets stable regulation under low-current bias (IZT = 5 mA) with minimal temperature drift (dVZ/dT = +3.2 mV/°C).
The SOD-523 package enables high-density PCB placement while maintaining 500 mW steady-state power dissipation and MSL 1 reflow compatibility up to 260 °C. Its Pb-free matte tin lead finish and UL 94 V-0 epoxy meet automotive and portable consumer requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.02 V to 8.36 V at IZT = 5 mA - ensures ±5% regulation accuracy for reference or clamping circuits |
| Zener Impedance (ZZT) | 160 Ω max at IZT - limits output voltage variation under load changes |
| Reverse Leakage (IR) | ≤0.7 µA at VR = 6.6 V - minimizes standby current in battery-powered systems |
| Power Dissipation (PD) | 500 mW at TA = 25 °C - supports continuous regulation without heatsinking on standard FR-4 |
| Thermal Resistance (RJA) | 250 °C/W - defines junction-to-ambient temperature rise per watt, critical for thermal margining |
| ESD Rating (HBM) | Class 3 (>16 kV) - protects against human-body electrostatic discharge during handling and assembly |
| Temperature Coefficient | +3.2 mV/°C at IZT = 5 mA - quantifies voltage drift over operating temperature range |
Pinout & Package
SOD-523 surface-mount package: 1.20 mm × 0.80 mm body, 0.70 mm height, cathode marked with band. Void-free thermosetting plastic case, 100% matte tin lead finish, MSL 1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased terminal where Zener breakdown occurs |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower potential; completes bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener tolerance | ±5% (8.02–8.36 V) enables accurate voltage referencing without post-calibration |
| AEC-Q101 qualification | Validated for automotive applications including infotainment power rails and sensor biasing |
| Low-profile SOD-523 | 1.20 mm × 0.80 mm footprint saves >60% board area vs. SOD-123 in high-density layouts |
| 16 kV HBM ESD protection | Eliminates need for external ESD diodes in handheld and wearable designs |
| Pb-free & RoHS compliant | Meets global environmental compliance mandates without performance trade-offs |
Applications
| Smartphone Power Management | Automotive Cabin Sensors |
|---|---|
Use Scenario: Regulating bias voltage for camera module image sensors and flash LED drivers in ultra-thin smartphones. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp protecting low-voltage analog front-ends. Use Value: ±5% tolerance ensures consistent sensor gain calibration; SOD-523 size allows placement adjacent to 0201 passives. | Use Scenario: Providing stable 8.2 V reference for cabin temperature and humidity sensor signal conditioning in HVAC control modules. IC Role / Device Role / Timing Role: Precision shunt regulator supplying excitation voltage to resistive sensing elements. Use Value: AEC-Q101 qualification guarantees operation across −40 °C to +125 °C; 16 kV ESD withstand prevents field failures. |
| Wearable Fitness Tracker | Industrial IoT Edge Node |
Use Scenario: Clamping supply rail transients during Bluetooth LE radio burst transmission in compact wrist-worn devices. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at RF SoC VDDIO pin. Use Value: 500 mW power rating handles short-duration RF switching spikes; low leakage (<0.7 µA) preserves battery life. | Use Scenario: Stabilizing ADC reference voltage in battery-operated wireless sensor nodes deployed in factory environments. IC Role / Device Role / Timing Role: Low-drift shunt reference for 12-bit SAR ADCs requiring <1% full-scale error. Use Value: +3.2 mV/°C tempco enables software compensation; RoHS/Pb-free compliance meets industrial procurement policies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C8V2LT1G | Same 8.2 V nominal, ±5% tolerance, but SOD-323 package (1.7 mm × 1.3 mm); RJA = 300 °C/W | Larger footprint; lower power derating margin on dense PCBs | Choose when legacy layout uses SOD-323 or higher thermal mass is acceptable |
| MMSZ5238BT1G | 8.2 V nominal, ±5%, but SOD-123 package (3.7 mm × 1.6 mm); PD = 500 mW; no AEC-Q101 rating | Not qualified for automotive use; incompatible with automated optical inspection due to larger size | Prefer for cost-sensitive industrial controls where AEC-Q101 is unnecessary |
Compared with BZX584C8V2LT1G and MMSZ5238BT1G, SZMM5Z8V2ST1G delivers identical regulation accuracy in the smallest possible footprint with automotive-grade reliability and superior thermal performance per unit area - critical for next-generation portable and automotive edge devices.
Availability
SZMM5Z8V2ST1G is available at Aetrix Electronics and suitable for smartphone power management, automotive cabin sensors, and wearable fitness trackers requiring stable component supply with guaranteed long-term availability.
Supply support for SZMM5Z8V2ST1G 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 manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MM5Z/SZMM5Z series was designed specifically for high-density, low-power voltage regulation in portable and automotive electronics - prioritizing small size, tight tolerance, and robust reliability in constrained environments.
FAQ
What is the Zener voltage tolerance of SZMM5Z8V2ST1G?
The SZMM5Z8V2ST1G has a Zener voltage tolerance of ±5%, specified as 8.02 V minimum to 8.36 V maximum at IZT = 5 mA and TA = 25 °C. This tight tolerance enables precise voltage referencing without trimming or calibration in production systems using the SZMM5Z8V2ST1G.
Is SZMM5Z8V2ST1G qualified for automotive applications?
Yes, SZMM5Z8V2ST1G is AEC-Q101 qualified and PPAP capable, with the "SZ" prefix indicating compliance for automotive and other applications requiring unique site and control change requirements. Its qualification covers operation from −65 °C to +150 °C junction temperature, making it suitable for under-hood and cabin electronics.
What is the maximum power dissipation of SZMM5Z8V2ST1G on a standard PCB?
SZMM5Z8V2ST1G has a steady-state power rating of 500 mW at TA = 25 °C on an FR-4 board with 1 cm² copper pad. Power must be derated by 4.0 mW/°C above 25 °C ambient, reaching zero dissipation at approximately 150 °C ambient - a key thermal limit when designing with SZMM5Z8V2ST1G.
Does SZMM5Z8V2ST1G have ESD protection?
Yes, SZMM5Z8V2ST1G features Class 3 HBM ESD rating (>16 kV), verified per JEDEC JS-001. This level of protection eliminates the need for additional ESD suppression components in handheld and wearable designs where the SZMM5Z8V2ST1G interfaces with exposed connectors or user-accessible circuitry.
What is the package type and marking of SZMM5Z8V2ST1G?
SZMM5Z8V2ST1G uses the SOD-523 package (Case 502, Style 1), with dimensions 1.20 mm × 0.80 mm × 0.70 mm. The cathode is marked with a polarity band; device marking is "TH" per the onsemi datasheet, followed by date code and Pb-free indicator "M".
SZMM5Z8V2ST1G 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):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 5 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-523
SZMM5Z8V2ST1G FAQ
1.How can I place an order for SZMM5Z8V2ST1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z8V2ST1G 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 SZMM5Z8V2ST1G reliable?
The price and inventory of SZMM5Z8V2ST1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z8V2ST1G is usually 5 days.
3.What payment methods are accepted for SZMM5Z8V2ST1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z8V2ST1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z8V2ST1G?
SZMM5Z8V2ST1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z8V2ST1G 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 SZMM5Z8V2ST1G?
For technical support, including SZMM5Z8V2ST1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z8V2ST1G requirements.
6.How does Aetrix verify that SZMM5Z8V2ST1G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z8V2ST1G 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 SZMM5Z8V2ST1G meets industry standards.
7.What is the process for return or replacement of SZMM5Z8V2ST1G?
All SZMM5Z8V2ST1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z8V2ST1G, 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 SZMM5Z8V2ST1G part is unused and in its original packaging.
Return procedure for SZMM5Z8V2ST1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM5Z8V2ST1G 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…
