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Diodes Incorporated SMAZ8V2-13-F
- Part No.:
- SMAZ8V2-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAZ8V2-13-F.pdf
- Description:
- DIODE ZENER 8.2V 1W SMA
- Quantity:
- Payment:
- Shipping:
Inventory:115,323
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Product details
Overview
SMAZ8V2-13-F from Diodes Incorporated is a 1.0W surface-mount Zener diode with nominal zener voltage 8.2V (±5%), maximum zener impedance 200Ω at 2mA test current, and reverse leakage current ≤1.0µA at 6.0V. It features SMA package, lead-free RoHS-compliant plating, and is used for voltage regulation and overvoltage protection in DC power rails of industrial control modules.
For engineers reviewing the SMAZ8V2-13-F datasheet, SMAZ8V2-13-F pinout, SMAZ8V2-13-F application, or SMAZ8V2-13-F equivalent, key selection criteria include zener voltage tolerance, power derating above +50°C, thermal resistance (RθJA = 100°C/W), cathode polarity marking, and compliance with halogen/antimony-free "Green" requirements.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its 8.2V nominal regulation is specified at IZT = 2mA, with ZZT ≤ 200Ω and ZZK ≤ 200Ω at IZK = 1mA - indicating low dynamic impedance for precision clamping.
The device uses silicon PN junction construction in an SMA molded plastic case rated UL 94V-0. Thermal performance is defined for FR-4 PCB mounting (1" × 0.85", 0.062" thick), with 10mW/°C derating above +50°C and RθJT = 30°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2V nominal, 7.79–8.61V range at 2mA - ensures ±5% regulation accuracy across production lot |
| Power Dissipation (PD) | 1.0W at TA = +25°C; derates linearly to zero at +150°C - supports continuous operation in compact industrial enclosures |
| Zener Impedance (ZZT) | ≤200Ω at IZT = 2mA - minimizes output voltage variation under dynamic load transients |
| Reverse Leakage (IR) | ≤1.0µA at VR = 6.0V - preserves low standby power in battery-backed circuits |
| Thermal Resistance (RθJA) | 100°C/W on standard FR-4 board - enables thermal design with minimal copper area |
| Package | SMA (DO-214AC) - compatible with automated pick-and-place and reflow soldering per J-STD-020 Level 1 |
Pinout & Package
SMA (DO-214AC) surface-mount package with molded plastic body (UL 94V-0), cathode identified by band or notch on top surface. Dimensions: 4.60mm × 2.92mm × 1.63mm (L × W × H); weight ≈ 0.064g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential rail; reverse-biased during regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; marked by band/notch for orientation |
Key Features
| Feature | Design Value |
|---|---|
| 1.0W Power Rating | Enables robust overvoltage clamping in 5–12V supply rails without external heat sinking |
| ±5% VZ Tolerance | Reduces binning requirements and simplifies BOM management for mid-precision references |
| Lead-Free & Halogen-Free | Meets IPC-J-STD-609 Class 1 for bromine/chlorine/antimony limits - compliant for automotive and medical PCBs |
| Cathode Band Polarity Marking | Ensures unambiguous orientation during automated assembly and visual inspection |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Stabilizing reference voltage for 12-bit ADC front-end in temperature transmitter modules. IC Role / Device Role / Timing Role: Zener voltage reference and transient suppressor for analog input protection network. Use Value: 8.2V regulation with ≤200Ω impedance maintains <0.5% full-scale error across -40°C to +85°C ambient. | Use Scenario: Clamping VBUS overvoltage during hot-plug events in USB-C PD sink designs. IC Role / Device Role / Timing Role: Fast-response shunt regulator limiting VBUS to safe level before e-mark IC reset threshold. Use Value: 1.0W rating absorbs 100ms 20V transients without degradation; ≤1µA IR prevents standby current drain. |
| Programmable Logic Controller I/O Protection | DC-DC Converter Feedback Divider |
Use Scenario: Protecting 24V digital input channels against field-wiring surges and ESD. IC Role / Device Role / Timing Role: Primary overvoltage clamp in optocoupler input stage, placed before series resistor. Use Value: Cathode-band marking ensures correct polarity in high-density DIN-rail mounted I/O modules. | Use Scenario: Providing precise 8.2V reference point in feedback divider network of isolated 12V-to-5V flyback converter. IC Role / Device Role / Timing Role: Stable voltage node enabling accurate output regulation under line/load transients. Use Value: ±5% VZ tolerance and low ZZT reduce output voltage drift to ±1.2% over full operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2,115 | 0.3W SOT-23 package; VZ = 8.2V ±5%; ZZT = 30Ω @ 5mA | Limited to low-power signal-level clamping; unsuitable for >100mA surge absorption | Select when board space is constrained and power dissipation <300mW |
| 1N4736A | 1.0W DO-41 through-hole; VZ = 7.5V ±5%; ZZT = 10Ω @ 20mA | Requires wave soldering; lacks RoHS/Green compliance and automated assembly compatibility | Select only for legacy through-hole designs where rework is acceptable |
Compared with BZX84-C8V2,115 and 1N4736A, SMAZ8V2-13-F uniquely balances 1.0W surface-mount capability, RoHS/Green compliance, and standardized SMA footprint - making it optimal for new industrial PCB designs requiring automated manufacturing and thermal reliability.
Availability
SMAZ8V2-13-F is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB-C power delivery protection, and PLC I/O conditioning requiring stable component supply and full lifecycle traceability.
Supply support for SMAZ8V2-13-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the US.
The SMAZ series belongs to Diodes' general-purpose Zener diode product line, engineered specifically for high-reliability voltage regulation and transient suppression in automated SMT production environments.
FAQ
What is the maximum allowable junction temperature for SMAZ8V2-13-F?
The absolute maximum junction temperature is +150°C, consistent with its storage temperature rating. Operation at this limit requires full derating of power dissipation to zero watts, and practical design should maintain TJ ≤ +125°C using RθJA = 100°C/W and appropriate PCB copper area.
How does the 8.2V zener voltage tolerance affect circuit accuracy?
The ±5% tolerance (7.79–8.61V) directly defines the worst-case regulation window at 2mA. In feedback networks, this contributes to initial output voltage error; for example, in a 5V flyback converter using resistive divider, it introduces ±1.2% output deviation before trimming.
Can SMAZ8V2-13-F be used in place of a 5.1V Zener for logic-level clamping?
No - its 8.2V nominal breakdown exceeds typical 3.3V/5V logic rail voltages and would not activate during normal overvoltage events below 7.79V. Using it for 5V clamping risks failure to protect downstream CMOS inputs during 6–7V transients.
Is the SMAZ8V2-13-F suitable for automotive applications?
It meets AEC-Q200 stress test requirements for temperature cycling and humidity exposure when qualified per Diodes' automotive-grade variants (e.g., SMAZ8V2Q-13-F). The standard SMAZ8V2-13-F is rated for industrial (-65°C to +150°C) but lacks automotive qualification documentation.
SMAZ8V2-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAZ8V2-13-F FAQ
1.How can I place an order for SMAZ8V2-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAZ8V2-13-F 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 SMAZ8V2-13-F reliable?
The price and inventory of SMAZ8V2-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAZ8V2-13-F is usually 5 days.
3.What payment methods are accepted for SMAZ8V2-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAZ8V2-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAZ8V2-13-F?
SMAZ8V2-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAZ8V2-13-F 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 SMAZ8V2-13-F?
For technical support, including SMAZ8V2-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAZ8V2-13-F requirements.
6.How does Aetrix verify that SMAZ8V2-13-F is sourced from the original manufacturer or authorized distributors?
All SMAZ8V2-13-F 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 SMAZ8V2-13-F meets industry standards.
7.What is the process for return or replacement of SMAZ8V2-13-F?
All SMAZ8V2-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAZ8V2-13-F, 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 SMAZ8V2-13-F part is unused and in its original packaging.
Return procedure for SMAZ8V2-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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