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Diodes Incorporated BZX84C3V6W-7
- Part No.:
- BZX84C3V6W-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
BZX84C3V6W-7.pdf
- Description:
- DIODE ZENER 3.6V 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,060
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Product details
Overview
BZX84C3V6W-7 from Diodes Incorporated is a 3.6 V, 200 mW surface-mount Zener diode in SOT-323 package, rated for 5 mA test current with 90 Ω dynamic impedance at 1 kHz, ±0.2 V zener voltage tolerance, and -3.5 to 0 mV/°C temperature coefficient - used for precision voltage reference and overvoltage protection in low-power analog sensor interfaces.
For engineers reviewing the BZX84C3V6W-7 datasheet, BZX84C3V6W-7 pinout, BZX84C3V6W-7 application, or BZX84C3V6W-7 equivalent, key selection criteria include nominal zener voltage (3.6 V), power dissipation (200 mW), zener impedance (90 Ω @ 5 mA), thermal resistance (625 K/W), and RoHS-compliant green molding compound construction.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation under varying load and temperature conditions. It features planar die construction for consistent parametric performance and is characterized at 25°C with 5 mA zener test current and 1 kHz AC signal for impedance measurement.
The device exhibits a negative-to-zero temperature coefficient (-3.5 to 0 mV/°C) and supports operation across -65°C to +125°C ambient range. Its ultra-small SOT-323 package enables high-density PCB layouts while maintaining thermal performance on FR4 boards with recommended pad layout per AP02001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.6 V nominal, 3.4–3.8 V min/max at IZT = 5 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 200 mW - maximum continuous DC power handling on FR4 board with specified pad layout |
| Zener Impedance (ZZT) | 90 Ω @ IZT = 5 mA, f = 1 kHz - determines voltage regulation stability under small-signal AC variations |
| Reverse Current (IR) | ≤5.0 µA @ VR = 1.0 V - ensures low leakage in standby or biasing circuits |
| Temp. Coefficient (αVZ) | -3.5 to 0 mV/°C @ IZT = 5 mA - quantifies voltage drift with ambient temperature change |
| Thermal Resistance (RθJA) | 625 K/W - relates junction-to-ambient temperature rise per watt of dissipated power |
| Operating Temp. Range | -65°C to +125°C - specifies full functional range for industrial and automotive environments |
Pinout & Package
Package: SOT-323 - ultra-small surface-mount plastic case with matte tin-plated Alloy 42 leadframe, UL 94V-0 flammability rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse bias reference node | Connected to lower-potential side in zener regulation; polarity must match schematic symbol orientation |
| Cathode | Zener breakdown terminal / Voltage reference output | Connected to higher-potential side; provides stable 3.6 V reference when reverse biased above breakdown threshold |
| Case | Non-electrical mechanical structure | No internal electrical connection; serves only as thermal and mechanical interface to PCB |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight parameter distribution and repeatable zener voltage tolerance (±0.2 V) |
| Green molding compound | Halogen-free, RoHS-compliant encapsulation meeting UL 94V-0 flammability standard |
| Ultra-small SOT-323 footprint | 0.006 g weight and 2.2 × 1.35 mm outline enable space-constrained designs like wearables and IoT sensors |
| Lead-free matte tin plating | Compatible with Pb-free reflow processes and eliminates intentional lead per EU RoHS Directive |
Applications
| Industrial Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 3.6 V reference for analog front-end amplifiers in temperature/humidity transducers. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference node voltage against supply ripple. Use Value: Maintains <±1% output accuracy over -40°C to +85°C due to low tempco and tight VZ tolerance. | Use Scenario: Clamping transient surges on USB VBUS line during hot-plug events. IC Role / Device Role / Timing Role: Shunt protection device diverting excess energy to ground before IC damage occurs. Use Value: Responds within nanoseconds to 100 V transients while limiting clamped voltage to ≤3.8 V. |
| Low-Power MCU Reset Circuit | LED Current Regulation Reference |
Use Scenario: Generating precise reset threshold for 3.3 V microcontrollers in battery-powered edge nodes. IC Role / Device Role / Timing Role: Voltage reference element in RC-based reset generator network. Use Value: Enables deterministic reset assertion at 3.6 V ±0.2 V, independent of supply ramp rate. | Use Scenario: Setting reference voltage for constant-current LED driver feedback loop. IC Role / Device Role / Timing Role: Stable voltage reference for op-amp error amplifier input. Use Value: Delivers <0.5% current variation across 2.7–5.5 V input range due to low ZZT and minimal tempco. |
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 | 3.6 V nominal, 225 mW PD, 100 Ω ZZT, SOT-323 package | Slightly higher power and impedance; identical marking and footprint | Select for marginally higher surge tolerance where 25 mW extra dissipation is beneficial |
| 1SMA5913BT3G | 3.6 V nominal, 400 mW PD, 10 Ω ZZT, SMA package (larger) | Lower impedance and higher power, but requires 3.5× larger board area | Choose when tighter regulation (<0.1% drift) is required and space permits SMA footprint |
Compared with MMBZ5227BS-7-F and 1SMA5913BT3G, BZX84C3V6W-7 offers optimal balance of size, cost, and regulation stability for space-constrained 3.3 V system rails - its 90 Ω ZZT and SOT-323 form factor make it preferred for portable and high-density PCBs where thermal mass is limited.
Availability
BZX84C3V6W-7 is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port overvoltage clamping, and low-power MCU reset circuits requiring stable component supply and long-term lifecycle continuity.
Supply support for BZX84C3V6W-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.
The BZX84 series belongs to Diodes' general-purpose Zener diode product line, engineered for precision voltage regulation and transient suppression in cost-sensitive, high-volume consumer and industrial applications.
FAQ
What is the maximum reverse voltage (VR) this diode can withstand before breakdown?
The BZX84C3V6W-7 has a nominal zener voltage of 3.6 V with guaranteed breakdown between 3.4 V and 3.8 V at 5 mA test current. It is not rated for sustained reverse voltage below this range - operation below 3.4 V maintains <5 µA leakage, but no defined "maximum non-breakdown" voltage is specified beyond the zener knee region.
Can this part be used in place of a 3.3 V Zener diode?
No - BZX84C3V6W-7 is specifically characterized at 3.6 V nominal with 3.4–3.8 V tolerance. Substituting it for a 3.3 V Zener would shift reference or clamp voltage by +0.3 V, potentially violating downstream IC input thresholds or regulation targets unless circuit margins explicitly accommodate this offset.
Is the SOT-323 package compatible with standard reflow profiles for lead-free assembly?
Yes - the device uses matte tin-plated Alloy 42 leads and green molding compound qualified for Pb-free reflow. Its moisture sensitivity level is 1 (unlimited floor life), and it meets JEDEC J-STD-020D requirements for solderability and thermal endurance up to peak temperatures of 260°C.
Does this Zener diode have a specified capacitance value?
No specific capacitance is listed for BZX84C3V6W-7 in the datasheet. However, Figure 4 shows typical total capacitance for 3.3 V and 3.9 V variants in the same family as ~100 pF at 1 V reverse bias and 1 MHz, implying BZX84C3V6W-7 falls within that range - suitable for low-frequency regulation but not RF bypassing.
BZX84C3V6W-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
BZX84C3V6W-7 FAQ
1.How can I place an order for BZX84C3V6W-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C3V6W-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 BZX84C3V6W-7 reliable?
The price and inventory of BZX84C3V6W-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C3V6W-7 is usually 5 days.
3.What payment methods are accepted for BZX84C3V6W-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C3V6W-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C3V6W-7?
BZX84C3V6W-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C3V6W-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 BZX84C3V6W-7?
For technical support, including BZX84C3V6W-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C3V6W-7 requirements.
6.How does Aetrix verify that BZX84C3V6W-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C3V6W-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 BZX84C3V6W-7 meets industry standards.
7.What is the process for return or replacement of BZX84C3V6W-7?
All BZX84C3V6W-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C3V6W-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 BZX84C3V6W-7 part is unused and in its original packaging.
Return procedure for BZX84C3V6W-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C3V6W-7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
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