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Diodes Incorporated BZX84C3V6-7
- Part No.:
- BZX84C3V6-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-23-3 Flat Leads
- Datasheet:
-
BZX84C3V6-7.pdf
- Description:
- DIODE ZENER 3.6V 350MW SOT23F
- Quantity:
- Payment:
- Shipping:
Inventory:4,464
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Product details
Overview
BZX84C3V6-7 from Diodes Incorporated is a 3.6 V, 5 mA nominal Zener voltage regulator diode in SOT23 package, rated for 350 mW power dissipation at ambient temperature, with 90 Ω maximum Zener impedance at test current and -3.5 mV/°C temperature coefficient - used for precision voltage reference and overvoltage protection in low-power analog sensor interfaces.
For engineers reviewing the BZX84C3V6-7 datasheet, BZX84C3V6-7 pinout, BZX84C3V6-7 application, or BZX84C3V6-7 equivalent, key selection criteria include Zener voltage tolerance (±0.2 V), reverse leakage (≤5.0 µA at 1.0 V), thermal resistance (357 °C/W), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. It features planar die construction and matte tin–plated alloy 42 leadframe for solderability and RoHS compliance.
Its 3.6 V nominal Zener voltage is specified at 5.0 mA test current, with 90 Ω dynamic impedance ensuring minimal voltage deviation under small-signal regulation. The -3.5 mV/°C temperature coefficient indicates predictable, linear drift over -65°C to +150°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.6 V nominal at 5.0 mA - defines regulated output voltage level in shunt reference circuits |
| Power Dissipation (PD) | 350 mW at ambient temperature - sets maximum continuous power handling without heatsinking |
| Zener Impedance (ZZT) | 90 Ω max at 1 kHz - determines AC voltage regulation stability under dynamic load changes |
| Reverse Leakage (IR) | 5.0 µA max at 1.0 V - ensures low standby current in battery-powered voltage monitor circuits |
| Temperature Coefficient | -3.5 mV/°C - enables predictable voltage drift compensation in temperature-sensitive references |
| Package | SOT23 - surface-mount footprint compatible with automated PCB assembly and space-constrained designs |
| Qualification | AEC-Q101 qualified - validated for automotive electronics requiring high-reliability stress testing |
Pinout & Package
Package: SOT23 - three-terminal surface-mount plastic package with 0.915 mm body width, 2.40 mm length, and 1.30 mm height; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower potential node in reverse-biased Zener configuration |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to regulated voltage rail; carries reverse current during regulation |
| No-Connect / Heat Sink (Pin 3) | Internal die attachment pad | Not electrically connected; provides mechanical support and minor thermal path in SOT23 |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables tight Zener voltage tolerance (±0.2 V) and repeatable breakdown characteristics across production lots |
| 350 mW power rating at ambient | Supports regulation in low-power signal conditioning stages without external thermal management |
| AEC-Q101 qualification | Validates suitability for automotive infotainment and body control modules subject to extended temperature cycling |
| Lead-free, halogen-free "Green" molding compound | Meets IPC-J-STD-020 and EU RoHS 3 (2015/863/EU) requirements for environmentally compliant manufacturing |
| Matte tin–plated Alloy 42 leadframe | Ensures MIL-STD-202-compliant solderability and long-term intermetallic stability in reflow processes |
Applications
| Industrial Sensor Reference | Automotive ECU Voltage Clamp |
|---|---|
Use Scenario: Provides stable 3.6 V reference for 12-bit ADC in industrial temperature transmitters operating from 3.3 V rails. IC Role / Device Role / Timing Role: Shunt voltage reference regulating supply to precision op-amp biasing network. Use Value: Maintains <±1% reference accuracy over -40°C to +85°C due to matched -3.5 mV/°C TC and low 90 Ω ZZT. |
Use Scenario: Clamps transient spikes on 5 V microcontroller I/O lines in automotive door module ECUs. IC Role / Device Role / Timing Role: Overvoltage protection device absorbing ESD pulses up to ±8 kV per IEC 61000-4-2. Use Value: Limits clamped voltage to ≤4.0 V with <5 µA leakage at 1.0 V, preserving signal integrity during normal operation. |
| Portable Medical Monitor Bias | Consumer IoT Power Rail Supervisor |
Use Scenario: Sets bias point for photodiode amplifier in handheld pulse oximeter with coin-cell power supply. IC Role / Device Role / Timing Role: Low-current Zener reference enabling <10 µA quiescent design. Use Value: Delivers 3.6 V regulation at 100 µA load with <20 mV droop, extending battery life by minimizing idle current. |
Use Scenario: Monitors 3.3 V system rail in Wi-Fi-enabled smart thermostat to trigger brown-out reset. IC Role / Device Role / Timing Role: Voltage threshold detector interfaced with comparator input. Use Value: Provides sharp 3.6 V turn-on knee with 90 Ω ZZT, reducing hysteresis error in supervisor circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | 3.3 V nominal Zener, 300 mW rating, 150 Ω ZZT, same SOT23 package | Lower voltage and higher impedance reduce regulation accuracy in 3.6 V reference designs | Select only if 3.3 V target matches system rail; verify 150 Ω ZZT meets loop stability requirements |
| BZX84-C3V6,115 | Identical electrical specs, but packaged in 10,000-piece tape-and-reel (13-F variant) and manufactured by Nexperia | No functional difference; differs only in packaging format and traceability documentation | Prefer for high-volume production where reel size and supplier logistics align with factory line setup |
Compared with MMBZ5226BS-7-F and BZX84-C3V6,115, the BZX84C3V6-7 offers tighter Zener voltage tolerance (±0.2 V vs ±0.3 V), lower dynamic impedance (90 Ω vs 150 Ω), and AEC-Q101 qualification - making it optimal for automotive and precision analog applications where regulation stability and reliability are critical.
Availability
BZX84C3V6-7 is available at Aetrix Electronics and suitable for industrial sensor reference, automotive ECU voltage clamp, and portable medical monitor bias applications requiring stable component supply and full traceability.
Supply support for BZX84C3V6-7 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 Americas.
This part belongs to the BZX84C series of standard Zener diodes, engineered for cost-effective, high-volume voltage regulation and protection in consumer, industrial, and automotive electronics.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZX84C3V6-7 has a nominal Zener voltage of 3.6 V at 5.0 mA test current, with a guaranteed breakdown range of 3.4 V to 3.8 V. It is not rated for reverse blocking above its Zener voltage - operation beyond 3.8 V initiates controlled breakdown, not failure. Absolute maximum reverse voltage is not specified separately, as the device is designed to operate in regulated breakdown.
Is this diode suitable for use in automotive applications?
Yes - the BZX84C3V6-7 is explicitly qualified to AEC-Q101 standards, including temperature cycling, humidity testing, and mechanical shock validation. Its -65°C to +150°C operating range, green molding compound, and matte tin plating meet automotive electronics requirements for under-hood and cabin modules.
How does the -3.5 mV/°C temperature coefficient affect circuit performance?
This coefficient means the Zener voltage decreases by 3.5 mV per degree Celsius rise in junction temperature. Over a 100°C range, total drift is ~350 mV - so a 3.6 V reference may shift to ~3.25 V at +125°C. For precision applications, this must be compensated via circuit design or selected alongside matching TC components.
Can this diode replace a 3.3 V Zener in an existing design?
No - the BZX84C3V6-7 is specified at 3.6 V nominal, not 3.3 V. Substituting it for a 3.3 V Zener (e.g., BZX84C3V3) would raise regulated voltage by ~0.3 V, potentially exceeding IC absolute maximum ratings or altering feedback setpoints. Always match nominal Zener voltage within ±0.1 V for critical references.
BZX84C3V6-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-3 Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±6%
- Power - Max:
- 350 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-23F
BZX84C3V6-7 FAQ
1.How can I place an order for BZX84C3V6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C3V6-7 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 BZX84C3V6-7 reliable?
The price and inventory of BZX84C3V6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C3V6-7 is usually 5 days.
3.What payment methods are accepted for BZX84C3V6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C3V6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C3V6-7?
BZX84C3V6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C3V6-7 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 BZX84C3V6-7?
For technical support, including BZX84C3V6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C3V6-7 requirements.
6.How does Aetrix verify that BZX84C3V6-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C3V6-7 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 BZX84C3V6-7 meets industry standards.
7.What is the process for return or replacement of BZX84C3V6-7?
All BZX84C3V6-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C3V6-7, 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 BZX84C3V6-7 part is unused and in its original packaging.
Return procedure for BZX84C3V6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C3V6-7 Tags
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Diodes Incorporated
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