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Diodes Incorporated SMAZ16-13-F
- Part No.:
- SMAZ16-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAZ16-13-F.pdf
- Description:
- DIODE ZENER 16V 1W SMA
- Quantity:
- Payment:
- Shipping:
Inventory:355,286
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Product details
Overview
SMAZ16-13-F from Diodes Incorporated is a 1.0W surface-mount Zener diode with a nominal zener voltage of 16.0V (±5% tolerance), 15mA maximum zener current, and 150Ω maximum zener impedance at 15mA test current. It features SMA package, cathode band polarity marking, and is rated for operation from –65°C to +150°C ambient. It serves as a precision voltage reference or overvoltage clamp in DC power rail regulation circuits.
For engineers reviewing the SMAZ16-13-F datasheet, SMAZ16-13-F pinout, SMAZ16-13-F application, or SMAZ16-13-F equivalent, key selection criteria include zener voltage accuracy, thermal resistance (RθJA = 100°C/W), power derating above +50°C, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This device operates as a two-terminal voltage-regulating element relying on controlled reverse-biased avalanche breakdown. Its 16.0V nominal zener voltage is specified at IZT = 15mA with ZZT ≤ 150Ω, and it maintains regulation down to IR ≤ 0.5µA at VR = 12.2V.
The SMA package provides a thermal resistance of 30°C/W junction-to-terminal and 100°C/W junction-to-ambient (on standard FR-4 layout), enabling stable 1.0W dissipation up to +50°C ambient before linear derating at 10mW/°C begins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.0V nominal, 15.2–16.8V range at 15mA - defines regulated output voltage under stable bias |
| Power Dissipation (PD) | 1.0W at TA = +25°C - sets maximum continuous DC power handling on standard PCB |
| Zener Impedance (ZZT) | ≤150Ω at IZT = 15mA - determines regulation stiffness against load current variation |
| Reverse Leakage (IR) | ≤0.5µA at VR = 12.2V - ensures minimal quiescent current in standby clamping mode |
| Thermal Resistance (RθJA) | 100°C/W - quantifies temperature rise per watt on defined FR-4 pad layout |
| Operating Temperature | –65°C to +150°C - supports industrial and automotive under-hood environments |
| Package | SMA (DO-214AC) - standardized 2-pin SMT footprint compatible with JEDEC MS-013 |
Pinout & Package
The SMA package is a molded plastic surface-mount case (UL 94V-0), 4.00–4.60mm long × 2.29–2.92mm wide × 1.27–1.63mm height, with matte tin-plated terminals and cathode identification via a band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to lower-potential node during forward bias; tied to ground or return path in shunt regulator |
| Cathode | Zener regulation terminal / high-side connection | Connected to input or protected rail; reverse-biased to maintain fixed voltage drop across load |
Key Features
| Feature | Design Value |
|---|---|
| 1.0W Power Rating | Enables robust overvoltage protection in 12–24V industrial control rails without external heatsinking |
| ±5% VZ Tolerance | Supports tight voltage reference requirements in analog sensing and feedback loops |
| Lead-Free & Halogen-Free | Meets RoHS 2 and JEDEC J-STD-020 Level 1 moisture sensitivity for reliable reflow assembly |
| Cathode Band Polarity | Ensures unambiguous orientation during automated pick-and-place and visual inspection |
Applications
| Industrial Power Supply Monitoring | Automotive ECU Voltage Clamp |
|---|---|
Use Scenario: Monitoring 12V battery-derived supply in PLC I/O modules to detect brownout or overvoltage conditions. IC Role / Device Role / Timing Role: Shunt voltage clamp placed across regulated 12V rail to divert excess current when transient exceeds 16V threshold. Use Value: Prevents downstream logic IC damage by limiting rail excursion to ≤16.8V with <0.5µA leakage below 12.2V. | Use Scenario: Protecting microcontroller ADC reference inputs from load-dump transients in engine control units. IC Role / Device Role / Timing Role: Low-capacitance (<2pF typical at 0V) zener clamp between VREF and GND. Use Value: Maintains ADC accuracy by holding reference within ±1% despite 100ms 24V load-dump spikes. |
| Telecom Line Card Surge Suppression | Medical Sensor Signal Conditioning |
Use Scenario: Secondary protection stage after TVS diode on -48V telecom power feed lines. IC Role / Device Role / Timing Role: Precision voltage limiter stabilizing bias for op-amps driving optical transceivers. Use Value: Delivers stable 16V reference with ≤150Ω dynamic impedance, minimizing signal distortion under varying load. | Use Scenario: Providing isolated, low-noise voltage reference for thermistor-based patient temperature measurement circuits. IC Role / Device Role / Timing Role: Low-leakage (≤0.5µA) zener source for Wheatstone bridge excitation. Use Value: Ensures <0.01°C measurement drift over –20°C to +70°C operating range due to stable VZ and low TC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16-7-F | 350mW rating, SOT-23 package, RθJA ≈ 300°C/W, VZ = 16V ±5% | Limited to low-power signal-level clamping; unsuitable for >100mA surge currents | Select when board space is constrained and power dissipation remains <350mW |
| 1N4744A | 1.0W DO-41 through-hole, VZ = 15V ±5%, ZZT = 16Ω @ 25mA | Requires wave soldering or hand assembly; higher thermal resistance in air | Select when legacy through-hole compatibility or lower dynamic impedance is prioritized over SMT automation |
Compared with BZX84-C16-7-F and 1N4744A, SMAZ16-13-F uniquely balances 1.0W SMT power handling, industry-standard SMA footprint, and low-leakage regulation-making it optimal for automated production of mid-power industrial power rails where thermal performance and assembly yield are critical.
Availability
SMAZ16-13-F is available at Aetrix Electronics and suitable for industrial power supply monitoring, automotive ECU voltage clamp, telecom line card surge suppression, and medical sensor signal conditioning requiring stable component supply across extended temperature ranges and high-volume manufacturing cycles.
Supply support for SMAZ16-13-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, manufacturing, and sales operations across Asia, Europe, and North America.
The SMAZ series belongs to Diodes' high-reliability Zener diode product line, engineered specifically for precision voltage regulation and transient suppression in space-constrained, high-volume SMT applications across industrial, automotive, and communications markets.
FAQ
What is the maximum continuous zener current for SMAZ16-13-F?
The maximum zener current IZM is 63mA, calculated as PD/VZ = 1.0W / 16.0V. However, the datasheet specifies a test current IZT of 15mA for parameter characterization, and operation at IZM requires strict thermal management to avoid exceeding TJ(max) = +150°C.
Does SMAZ16-13-F have a specified zener voltage temperature coefficient?
No temperature coefficient value is published in DS18015 Rev. 19–2 for SMAZ16-13-F. The device exhibits typical positive TC behavior above ~5V, but precise TC data is not provided; designers requiring tight thermal stability should verify performance across temperature in their specific layout.
Can SMAZ16-13-F be used in place of a 15V zener diode?
No - SMAZ16-13-F has a nominal VZ of 16.0V (range 15.2–16.8V), which does not overlap the 15.0V nominal (14.25–15.75V) range of SMAZ15. Substituting it for a 15V part would raise regulated voltage by ≥0.2V minimum, potentially violating downstream IC voltage tolerances.
Is the SMAZ16-13-F RoHS-compliant and halogen-free?
Yes - SMAZ16-13-F carries lead-free plating (matte tin), complies with EU RoHS Directive 2011/65/EU, and meets Diodes Incorporated's "Green" definition: <900ppm bromine, <900ppm chlorine, and <1000ppm antimony compounds, verified per internal material testing protocols.
SMAZ16-13-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):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 12.2 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
SMAZ16-13-F FAQ
1.How can I place an order for SMAZ16-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAZ16-13-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 SMAZ16-13-F reliable?
The price and inventory of SMAZ16-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAZ16-13-F is usually 5 days.
3.What payment methods are accepted for SMAZ16-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAZ16-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAZ16-13-F?
SMAZ16-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAZ16-13-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 SMAZ16-13-F?
For technical support, including SMAZ16-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAZ16-13-F requirements.
6.How does Aetrix verify that SMAZ16-13-F is sourced from the original manufacturer or authorized distributors?
All SMAZ16-13-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 SMAZ16-13-F meets industry standards.
7.What is the process for return or replacement of SMAZ16-13-F?
All SMAZ16-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAZ16-13-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 SMAZ16-13-F part is unused and in its original packaging.
Return procedure for SMAZ16-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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