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Diodes Incorporated BZX84B3V6-7-F
- Part No.:
- BZX84B3V6-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84B3V6-7-F.pdf
- Description:
- DIODE ZENER 3.6V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:13,877
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Product details
Overview
BZX84B3V6-7-F from Diodes Incorporated is a precision 3.6 V ±2% Zener diode in SOT23 package, rated for 350 mW power dissipation at ambient temperature, with 90 Ω maximum Zener impedance at 5 mA test current and 5.0 µA maximum reverse leakage at 1.0 V, used for voltage regulation and reference in low-power analog circuits.
For engineers reviewing the BZX84B3V6-7-F datasheet, BZX84B3V6-7-F pinout, BZX84B3V6-7-F application, or BZX84B3V6-7-F equivalent, key selection criteria include tight Zener voltage tolerance (±2%), low dynamic impedance, AEC-Q101 qualification, RoHS-compliant lead-free construction, and SOT23 compatibility with automated surface-mount assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable 3.6 V reference voltage across load variations, with nominal test current of 5.0 mA and specified thermal resistance of 357 °C/W when terminals are held at ambient temperature. Its low 90 Ω Zener impedance ensures minimal voltage deviation under dynamic current changes.
The device exhibits a negative temperature coefficient of −3.5 mV/°C near 3.6 V, enabling predictable drift compensation in temperature-sensitive references. It is qualified to AEC-Q101 standards, confirming suitability for automotive-grade reliability requirements including thermal cycling, humidity resistance, and mechanical shock endurance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.6 V nominal, 3.53–3.67 V range at 5 mA - enables precise low-voltage regulation in 3.3 V system rails. |
| Tolerance | ±2% - reduces calibration overhead in voltage-reference designs requiring high initial accuracy. |
| Power Dissipation | 350 mW at ambient - supports continuous operation in compact PCB layouts without forced cooling. |
| Zener Impedance (ZZT) | 90 Ω max at 1 kHz, 5 mA - limits output voltage variation to <0.45 V under ±5 mA load transients. |
| Reverse Leakage (IR) | 5.0 µA max at 1.0 V - minimizes quiescent current draw in battery-powered sensor bias networks. |
| Thermal Resistance (RθJA) | 357 °C/W - defines junction-to-ambient rise under steady-state 350 mW dissipation on standard FR-4 board. |
| Operating Temperature | −65 °C to +150 °C - supports deployment in under-hood automotive and industrial control environments. |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin-plated Alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1, weight ≈0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased relative to cathode during regulation. |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Provides stable 3.6 V reference when reverse-biased; connects to load or feedback network. |
| NC / Heat Sink (Pin 3) | Non-connected / thermal relief pad | Internally unconnected; serves as mechanical anchor and minor thermal path via PCB copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Reduces need for post-production trimming in precision reference circuits for ADCs and comparators. |
| AEC-Q101 qualification | Validates robustness for automotive body electronics, infotainment power supplies, and sensor interfaces. |
| Lead-free and halogen-free "Green" construction | Meets EU RoHS 3 (2015/863/EU) and automotive ELV Directive compliance without performance trade-offs. |
| SOT23 footprint compatibility | Enables drop-in replacement in existing 3-pin SOT23 layouts without PCB redesign or retooling. |
| Low 90 Ω dynamic impedance | Maintains regulation stability under fast-switching load conditions typical in microcontroller reset circuits. |
Applications
| Microcontroller Reset Circuit | ADC Reference Voltage Source |
|---|---|
Use Scenario: Provides clean, stable reset signal to microcontrollers during power-up and brown-out events. IC Role / Device Role / Timing Role: Zener diode acting as voltage threshold detector in RC-based reset generator. Use Value: ±2% tolerance ensures consistent reset assertion at 3.6 V across production batches, reducing firmware-level recalibration. |
Use Scenario: Supplies reference voltage to 12-bit analog-to-digital converters in industrial sensors. IC Role / Device Role / Timing Role: Precision shunt reference establishing VREF for ADC conversion accuracy. Use Value: 90 Ω Zener impedance limits reference error to <0.1 LSB under 100 µA load variation, preserving measurement fidelity. |
| Automotive LED Current Regulation | Low-Power Sensor Bias Network |
Use Scenario: Sets reference voltage for constant-current driver ICs powering interior status LEDs. IC Role / Device Role / Timing Role: Stable voltage node defining current-sense threshold in linear LED drivers. Use Value: AEC-Q101 qualification guarantees operation over −40 °C to +125 °C ambient, matching vehicle cabin thermal profiles. |
Use Scenario: Biases photodiode or thermistor front-end amplifiers in battery-operated IoT nodes. IC Role / Device Role / Timing Role: Low-leakage (5 µA max) voltage reference minimizing standby current drain. Use Value: 5.0 µA max reverse current at 1.0 V extends coin-cell battery life beyond 5 years in always-on sensing applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Zener voltage 3.6 V, ±5% tolerance, 225 mW power rating, same SOT23 package | Higher voltage tolerance and lower power limit reduce accuracy and headroom in high-stability references | Select when cost sensitivity outweighs precision needs and thermal margin is sufficient |
| BZX84-C3V6 | Zener voltage 3.6 V, ±5% tolerance, 300 mW power rating, non-AEC-Q101 qualified | Lacks automotive reliability validation and has looser voltage spec, limiting use in safety-critical systems | Prefer for consumer-grade portable electronics where AEC-Q101 is not mandated |
Compared with MMBZ5227BS-7-F and BZX84-C3V6, BZX84B3V6-7-F delivers tighter ±2% tolerance, higher 350 mW rating, and AEC-Q101 qualification-making it optimal for automotive and industrial applications demanding long-term voltage stability and environmental ruggedness.
Availability
BZX84B3V6-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and medical diagnostic equipment requiring stable component supply and traceable sourcing.
Supply support for BZX84B3V6-7-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 centers and manufacturing facilities across Asia and the Americas.
The BZX84 series belongs to Diodes' precision Zener diode product line, engineered specifically for high-accuracy voltage regulation and reference applications in automotive, industrial, and computing systems where reliability and parametric consistency are critical.
FAQ
What is the maximum reverse voltage (VR) before significant leakage occurs?
The BZX84B3V6-7-F exhibits ≤5.0 µA reverse current at 1.0 V applied reverse bias, per the Electrical Characteristics table. At 3.0 V reverse bias, leakage remains below 100 nA - well within safe operating limits for most bias and reference applications.
Can this Zener diode be used in series to achieve higher reference voltages?
Yes - multiple BZX84B3V6-7-F units can be cascaded in series to generate integer multiples of 3.6 V (e.g., two in series yield ~7.2 V), provided total power dissipation stays within derated limits and thermal coupling is minimized to avoid mismatched temperature coefficients.
Is the SOT23 pinout compatible with standard pick-and-place equipment?
Yes - the SOT23 package uses industry-standard 1.3 mm pitch, 2.9 mm length, and 1.35 mm width dimensions with defined land pattern (X1 = 1.35 mm, Y1 = 2.9 mm), fully supported by all major automated assembly platforms including Fuji CP, Yamaha YSM, and ASM SIPLACE.
Does the −3.5 mV/°C temperature coefficient apply across the full operating range?
The −3.5 mV/°C coefficient is specified at 25 °C and holds within ±0.2 mV/°C from −25 °C to +75 °C; outside that range, drift increases nonlinearly - for wide-temperature applications, consider TC-compensated references or calibration routines.
BZX84B3V6-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84B3V6-7-F FAQ
1.How can I place an order for BZX84B3V6-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84B3V6-7-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 BZX84B3V6-7-F reliable?
The price and inventory of BZX84B3V6-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84B3V6-7-F is usually 5 days.
3.What payment methods are accepted for BZX84B3V6-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84B3V6-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84B3V6-7-F?
BZX84B3V6-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84B3V6-7-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 BZX84B3V6-7-F?
For technical support, including BZX84B3V6-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84B3V6-7-F requirements.
6.How does Aetrix verify that BZX84B3V6-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84B3V6-7-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 BZX84B3V6-7-F meets industry standards.
7.What is the process for return or replacement of BZX84B3V6-7-F?
All BZX84B3V6-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84B3V6-7-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 BZX84B3V6-7-F part is unused and in its original packaging.
Return procedure for BZX84B3V6-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84B3V6-7-F Tags
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