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onsemi SZMM3Z8V2T1G
- Part No.:
- SZMM3Z8V2T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z8V2T1G.pdf
- Description:
- DIODE ZENER 8.2V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:61,210
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Product details
Overview
SZMM3Z8V2T1G from onsemi is a 300 mW, 8.2 V nominal Zener voltage regulator diode in SOD−323 surface-mount package, designed for precision voltage reference and overvoltage protection in space-constrained circuits. It delivers ±5% Zener voltage tolerance (7.7–8.7 V), 15 Ω dynamic impedance at 5 mA test current, and 0.7 µA reverse leakage at 5.0 V, enabling stable regulation in portable power rails and signal conditioning paths.
For engineers reviewing the SZMM3Z8V2T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC−Q101 qualification, 135 pF capacitance at 0 V bias, −65 °C to +150 °C operating range, and Pb−free SOD−323 footprint compatibility with high-density PCB layouts in automotive and handheld electronics.
Technical Context
This device operates as a two-terminal voltage reference, conducting in reverse breakdown to clamp voltage across load circuits. Its thermal resistance of 416 °C/W and 2.4 mW/°C derating above 25 °C define safe power handling under ambient temperature variation.
The Zener exhibits a positive temperature coefficient of +3.2 mV/°C and low forward voltage (≤0.9 V @ 10 mA), supporting bidirectional clamping and dual-role use in ESD protection and DC biasing networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.7–8.7 V @ IZT = 5 mA - defines regulated output range for 3.3 V/5 V rail monitoring and feedback loops |
| Zener Impedance (ZZT) | 15 Ω max @ 5 mA - ensures minimal voltage deviation under load transients in precision references |
| Reverse Leakage (IR) | 0.7 µA max @ VR = 5.0 V - enables low-quiescent-current operation in battery-powered sensors |
| Capacitance (C) | 135 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability in RF front-end bias networks |
| Power Dissipation (PD) | 300 mW @ TA = 25 °C - sets maximum continuous power handling on FR-4 board with 1 cm² pad |
| ESD Rating | Class 3 (>16 kV HBM) - provides robustness against handling-induced electrostatic discharge in assembly lines |
| Operating Temperature | −65 °C to +150 °C - supports under-hood automotive and industrial environments without derating |
Pinout & Package
SZMM3Z8V2T1G is housed in a Pb−free SOD−323 package (Case 477−02), measuring 1.7 mm × 1.25 mm × 0.9 mm with cathode polarity indicated by a band. The package is void-free, UL 94 V−0 rated, and compatible with standard reflow profiles (260 °C for 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased Zener terminal | Connected to higher-potential node to enable breakdown conduction and voltage clamping |
| 2 (Anode) | Reference/ground terminal | Typically tied to system ground or low-side return path for stable reference potential |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualified | Validated for automotive applications including infotainment power supplies and body control modules |
| Low-profile SOD−323 footprint | Enables placement in <1.0 mm height zones on stacked PCBs and wearable device flex assemblies |
| 135 pF junction capacitance | Supports effective high-frequency bypass in 2.4 GHz Wi-Fi/BLE antenna bias networks |
| +3.2 mV/°C tempco | Compensates for negative tempcos in adjacent components (e.g., op-amp input stages) in sensor signal chains |
| Pb−free & RoHS compliant | Meets global environmental compliance requirements for consumer and medical electronics |
Applications
| Automotive Body Control Module | Portable Medical Sensor Biasing |
|---|---|
Use Scenario: Voltage reference for LIN bus transceiver supply monitoring and microcontroller ADC reference in door module ECUs. IC Role / Device Role / Timing Role: Zener diode providing stable 8.2 V reference for analog front-end calibration and overvoltage detection. Use Value: Maintains <±1% reference accuracy across −40 °C to +125 °C ambient, ensuring reliable fault reporting under thermal stress. |
Use Scenario: Precision bias voltage generation for low-power pulse oximeter photodiode amplifiers in wrist-worn health monitors. IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing fixed 8.2 V bias for transimpedance amplifier supply rails. Use Value: 0.7 µA leakage minimizes battery drain in multi-day wearable deployments while maintaining signal integrity. |
| 5G Small Cell RF Front-End | Industrial PLC Analog Input Protection |
Use Scenario: DC bias network stabilization for GaN power amplifier bias tees in sub-6 GHz massive MIMO base stations. IC Role / Device Role / Timing Role: Low-capacitance (135 pF) Zener used in parallel with RF choke to suppress low-frequency drift without degrading S22. Use Value: Enables stable 8.2 V gate bias under RF modulation, reducing AM-to-PM distortion in high-efficiency PA designs. |
Use Scenario: Overvoltage clamp on 4–20 mA current loop inputs exposed to field wiring transients in factory automation systems. IC Role / Device Role / Timing Role: Fast-response shunt protector limiting input voltage to 8.7 V during 1 kV surge events per IEC 61000-4-5. Use Value: Withstands >16 kV HBM ESD and dissipates 300 mW transient energy without degradation, extending field unit MTBF. |
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-B8V2,115 | Same 8.2 V nominal Zener, but 200 mW rating and SOD-323 package; 20 Ω ZZT, 100 pF capacitance | Limited to lower-power analog references; not AEC−Q101 qualified | Select when cost sensitivity outweighs automotive qualification and thermal margin needs |
| MMSZ5234B-TP | 8.2 V nominal, 500 mW rating in SOD-123; 10 Ω ZZT, 150 pF capacitance; no AEC−Q101 certification | Higher power handling but larger footprint; unsuitable for ultra-dense layouts | Choose for industrial power supplies where board space allows and AEC−Q101 is not required |
Compared with BZX384-B8V2,115 and MMSZ5234B-TP, SZMM3Z8V2T1G uniquely combines AEC−Q101 qualification, 300 mW power rating in minimal SOD−323 area, and 135 pF capacitance-making it optimal for automotive and portable RF applications demanding reliability, density, and signal integrity.
Availability
SZMM3Z8V2T1G is available at Aetrix Electronics and suitable for automotive body control modules, portable medical sensor biasing, 5G small cell RF front-ends, and industrial PLC analog input protection requiring stable component supply across extended temperature ranges and high-reliability production programs.
Supply support for SZMM3Z8V2T1G 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 specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
SZMM3Z8V2T1G belongs to the MM3ZxxxT1G/SZMM3ZxxxT1G series-engineered for high-density voltage regulation and ESD protection in space-constrained, thermally demanding applications such as automotive infotainment and portable electronics.
FAQ
What is the Zener voltage tolerance of SZMM3Z8V2T1G?
The SZMM3Z8V2T1G has a nominal Zener voltage of 8.2 V with a tolerance of ±5%, resulting in a guaranteed range of 7.7 V to 8.7 V at 5 mA test current (IZT). This tolerance is specified at TA = 25 °C and applies directly to the SZMM3Z8V2T1G device per its Electrical Characteristics table on page 2 of the official datasheet.
Is SZMM3Z8V2T1G qualified for automotive applications?
Yes, SZMM3Z8V2T1G is AEC−Q101 qualified and PPAP capable, as explicitly stated in the "Specification Features" section of the datasheet. The "SZ" prefix denotes compliance with automotive-specific site and control change requirements, making SZMM3Z8V2T1G suitable for under-hood and cabin electronics where reliability and traceability are mandatory.
What is the maximum reverse leakage current for SZMM3Z8V2T1G?
The maximum reverse leakage current (IR) for SZMM3Z8V2T1G is 0.7 µA at a reverse voltage (VR) of 5.0 V and ambient temperature of 25 °C. This value is confirmed in the Electrical Characteristics table on page 2 of the datasheet and reflects the device's low-power suitability for battery-operated systems.
Does SZMM3Z8V2T1G have a defined forward voltage specification?
Yes, SZMM3Z8V2T1G specifies a maximum forward voltage (VF) of 0.9 V at a forward current (IF) of 10 mA, consistent across all devices in the MM3ZxxxT1G/SZMM3ZxxxT1G series. This parameter is critical when using the diode in bidirectional clamping or ESD protection configurations where forward conduction may occur.
What is the thermal resistance (RJA) of SZMM3Z8V2T1G?
The thermal resistance from junction to ambient (RJA) for SZMM3Z8V2T1G is 416 °C/W, measured on an FR-4 printed circuit board with single-sided copper and a 1 cm² mounting pad. This value governs thermal derating-power must be reduced by 2.4 mW per °C above 25 °C ambient, as shown in the Maximum Ratings table.
SZMM3Z8V2T1G 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):
- 8.2 V
- Tolerance:
- ±6%
- Power - Max:
- 300 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-323
SZMM3Z8V2T1G FAQ
1.How can I place an order for SZMM3Z8V2T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z8V2T1G 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 SZMM3Z8V2T1G reliable?
The price and inventory of SZMM3Z8V2T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z8V2T1G is usually 5 days.
3.What payment methods are accepted for SZMM3Z8V2T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z8V2T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z8V2T1G?
SZMM3Z8V2T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z8V2T1G 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 SZMM3Z8V2T1G?
For technical support, including SZMM3Z8V2T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z8V2T1G requirements.
6.How does Aetrix verify that SZMM3Z8V2T1G is sourced from the original manufacturer or authorized distributors?
All SZMM3Z8V2T1G 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 SZMM3Z8V2T1G meets industry standards.
7.What is the process for return or replacement of SZMM3Z8V2T1G?
All SZMM3Z8V2T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z8V2T1G, 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 SZMM3Z8V2T1G part is unused and in its original packaging.
Return procedure for SZMM3Z8V2T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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