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Diodes Incorporated SMAZ7V5-13-F
- Part No.:
- SMAZ7V5-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAZ7V5-13-F.pdf
- Description:
- DIODE ZENER 7.5V 1W SMA
- Quantity:
- Payment:
- Shipping:
Inventory:63,855
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Product details
Overview
SMAZ7V5-13-F from Diodes Incorporated is a 1.0W surface-mount Zener diode with nominal zener voltage 7.5V (±5%), 2.0mA test current, 450Ω maximum zener impedance at IZT, and 5.0µA maximum reverse leakage at 5.0V. It features SMA package, cathode band polarity marking, and is rated for -65°C to +150°C operation - used for voltage regulation and overvoltage protection in DC power rails of industrial control modules.
For engineers reviewing the SMAZ7V5-13-F datasheet, SMAZ7V5-13-F pinout, SMAZ7V5-13-F application, or SMAZ7V5-13-F equivalent, key selection criteria include zener voltage tolerance, thermal resistance (RθJA = 100°C/W), power derating above +50°C, and compliance with RoHS, halogen-free, and antimony-free "Green" requirements.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and line conditions. Its 7.5V nominal regulation is specified at IZT = 2.0mA, with dynamic impedance of ≤450Ω at that point and ≤200Ω at IZK = 1.0mA.
Thermal performance is defined for FR-4 PCB mounting (1" × 0.85", 0.062" thick) with standardized pad layout. Power dissipation is 1.0W at +25°C, linearly derated by 10mW/°C above +50°C, yielding ~0.5W at +100°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5V nominal, 7.13–7.88V range at 2.0mA - ensures ±5% regulation accuracy across production lot |
| Power Dissipation (PD) | 1.0W at TA = +25°C - supports robust transient energy absorption in compact SMT layouts |
| Zener Impedance (ZZT) | ≤450Ω at IZT = 2.0mA - limits output voltage deviation under dynamic load changes |
| Reverse Leakage (IR) | ≤5.0µA at VR = 5.0V - minimizes quiescent current in low-power standby circuits |
| Operating Temperature | -65°C to +150°C - enables deployment in automotive engine compartments and industrial motor drives |
| Package | SMA (DO-214AC) - industry-standard 2-pin surface-mount outline with 0.064g mass and UL 94V-0 flammability rating |
Pinout & Package
SMA package: molded plastic case, cathode indicated by band on body; terminals are solderable matte tin-plated leads per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side reference node | Connected to circuit ground or lower-potential rail during Zener operation |
| Cathode | Reverse-biased regulation terminal / high-side reference node | Connected to input supply; maintains regulated voltage drop across load when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| 1.0W power rating | Enables use in higher-current regulation paths without external heat sinking on standard FR-4 PCBs |
| ±5% VZ tolerance | Reduces need for post-assembly trimming in cost-sensitive consumer and industrial power supplies |
| RoHS-compliant, halogen- and antimony-free | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
| Cathode band polarity marking | Supports automated optical inspection (AOI) and eliminates orientation errors during high-speed pick-and-place assembly |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Power Rail Clamp |
|---|---|
Use Scenario: Stabilizing reference voltage for analog front-end amplifiers in temperature and pressure sensors. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage regulator and noise filter for precision ADC reference inputs. Use Value: 7.5V regulation with ≤450Ω impedance ensures <10mV ripple on 3.3V LDO input derived via resistive divider, improving 12-bit ADC accuracy. | Use Scenario: Clamping 12V battery-derived supply against load-dump transients up to 35V. IC Role / Device Role / Timing Role: Overvoltage protection device placed across microcontroller VDD rail with series current-limiting resistor. Use Value: 1.0W power rating sustains 100ms 24V clamp events without degradation; -65°C to +150°C rating matches BCM under-hood thermal profile. |
| Consumer Appliance Power Supply Feedback | Telecom Line Card ESD Protection Interface |
Use Scenario: Providing feedback voltage reference for optocoupler-coupled flyback controller in AC/DC SMPS. IC Role / Device Role / Timing Role: Precision shunt regulator establishing stable 7.5V reference for TL431-like feedback loop. Use Value: Tight 7.13–7.88V VZ range ensures ±1.5% output voltage tolerance across line/load/temperature in Class II isolated supplies. | Use Scenario: Secondary-side transient suppression on RS-485 data lines exposed to IEC 61000-4-5 surge events. IC Role / Device Role / Timing Role: Standby clamping element in low-capacitance TVS-assisted protection network. Use Value: Low 5.0µA leakage at 5.0V prevents signal distortion on 125Ω differential bus; SMA footprint allows dense placement near connector. |
Availability
SMAZ7V5-13-F is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control module (BCM) power rail clamp, and consumer appliance power supply feedback requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for SMAZ7V5-13-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 the Americas.
The SMAZ series belongs to Diodes' standard Zener diode product line, engineered for reliable voltage regulation and transient suppression in cost-sensitive, high-volume surface-mount applications across industrial, automotive, and consumer markets.
FAQ
What is the maximum allowable continuous reverse current for SMAZ7V5-13-F at 7.5V?
The device is not rated for continuous conduction at its zener voltage; it is designed for regulated reverse-bias operation. At VZ = 7.5V, the maximum recommended DC zener current is derived from power limit: IZ(max) ≈ PD/VZ = 1.0W / 7.5V ≈ 133mA at +25°C ambient. Derating applies above +50°C per datasheet Figure 1.
Does SMAZ7V5-13-F have a specified junction-to-case thermal resistance?
Yes - RθJT is specified as 30°C/W (typical) in the Thermal Characteristics table. This value reflects heat transfer from junction to terminal (lead) under standard FR-4 mounting conditions and is used to model localized heating in thermally constrained PCB layouts.
Can SMAZ7V5-13-F be used as a substitute for a 7.5V TL431-based shunt regulator?
No - SMAZ7V5-13-F is a two-terminal passive Zener diode without active feedback or adjustable reference capability. It lacks the 2.495V precision reference, cathode-anode gain, and sink-current drive of TL431. It may replace simple fixed-voltage shunt functions but cannot replicate programmable or error-amplified regulation.
Is the SMAZ7V5-13-F marking code 'ZHQ' visible on the device body?
Yes - per the Marking Information section and Electrical Characteristics table, SMAZ7V5 devices are marked with 'ZHQ' on the top surface of the SMA package. This code identifies the 7.5V variant and is laser-etched or printed adjacent to the cathode band for automated optical verification.
SMAZ7V5-13-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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 5 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
SMAZ7V5-13-F FAQ
1.How can I place an order for SMAZ7V5-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAZ7V5-13-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 SMAZ7V5-13-F reliable?
The price and inventory of SMAZ7V5-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAZ7V5-13-F is usually 5 days.
3.What payment methods are accepted for SMAZ7V5-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAZ7V5-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAZ7V5-13-F?
SMAZ7V5-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAZ7V5-13-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 SMAZ7V5-13-F?
For technical support, including SMAZ7V5-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAZ7V5-13-F requirements.
6.How does Aetrix verify that SMAZ7V5-13-F is sourced from the original manufacturer or authorized distributors?
All SMAZ7V5-13-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 SMAZ7V5-13-F meets industry standards.
7.What is the process for return or replacement of SMAZ7V5-13-F?
All SMAZ7V5-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAZ7V5-13-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 SMAZ7V5-13-F part is unused and in its original packaging.
Return procedure for SMAZ7V5-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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