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Nexperia USA Inc. BZX84-B3V6VL
- Part No.:
- BZX84-B3V6VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B3V6VL.pdf
- Description:
- DIODE ZENER 3.6V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,601
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Product details
Overview
BZX84-B3V6VL from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 3.6 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves as a precision reference or overvoltage clamp in low-power analog supply rails, microcontroller reset circuits, and sensor biasing networks.
For engineers reviewing the BZX84-B3V6VL datasheet, BZX84-B3V6VL pinout, BZX84-B3V6VL application, or BZX84-B3V6VL equivalent, key selection criteria include its 3.6 V Zener voltage with ±2 % tolerance, 90 Ω max differential resistance at 5 mA, 5 μA max reverse current at 2.88 V, -3.5 to 0.0 mV/K temperature coefficient, and SOT23-compatible thermal performance on FR4 PCBs.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable voltage across its cathode-anode terminals under varying load or input conditions. Its Zener mechanism provides predictable regulation with low dynamic impedance (≤90 Ω) and tightly controlled voltage drift over temperature (SZ = −3.5 to 0.0 mV/K).
The SOT23 package enables surface-mount integration into space-constrained boards while supporting 250 mW continuous dissipation at 25 °C ambient and up to 40 W transient surge handling (100 μs pulse). Thermal resistance from junction to solder point is 330 K/W, enabling reliable operation in industrial ambient ranges (−55 °C to +150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.53 V to 3.67 V at IZ = 5 mA - defines regulated output voltage window under standard test conditions |
| Differential Resistance (rdif) | ≤90 Ω at IZ = 5 mA - determines voltage stability against load current changes |
| Reverse Current (IR) | ≤5 μA at VR = 2.88 V - ensures minimal leakage below regulation threshold |
| Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC power handling |
| Peak Reverse Power (PZSM) | 40 W for tp = 100 μs - supports transient overvoltage clamping without failure |
| Temperature Coefficient (SZ) | −3.5 to 0.0 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius change |
| Junction Temperature (Tj) | −55 °C to +150 °C - specifies operational silicon temperature limits |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 1.3 mm × 2.9 mm footprint, 1.1 mm height, and tin-plated copper terminations compatible with reflow and wave soldering per IPC-J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node; reverse-biased during regulation |
| 2 | Not Connected (n.c.) | Internally unconnected; no electrical function or thermal path |
| 3 | Cathode (K) | Connected to higher-potential node; output reference point during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than ±5 % variants (BZX84-C), suitable for mid-precision references |
| 250 mW continuous power rating | Supports stable operation in 3.3 V/5 V rail monitoring without heatsinking on standard FR4 |
| 40 W non-repetitive surge capability | Clamps ESD transients and line surges per IEC 61000-4-2 Level 4 without degradation |
| Low 90 Ω dynamic impedance | Maintains <±10 mV output variation across 1–10 mA load current range |
| −55 °C to +150 °C operating range | Validates use in extended-temperature industrial control and automotive under-hood modules |
Applications
| Microcontroller Reset Circuit | Sensor Bias Reference |
|---|---|
Use Scenario: Provides clean, temperature-stable reset threshold for ARM Cortex-M0+ MCUs operating from 3.3 V supplies. IC Role / Device Role / Timing Role: Zener diode acts as voltage comparator input reference for integrated POR circuitry. Use Value: 3.6 V breakdown ensures reliable reset assertion at 80 % of VDD, with ±2 % tolerance minimizing false triggers across temperature. |
Use Scenario: Supplies stable excitation voltage to resistive temperature detectors (RTDs) in HVAC thermostats. IC Role / Device Role / Timing Role: Passive voltage reference establishing fixed bias current through 1 kΩ RTD element. Use Value: 90 Ω rdif limits voltage shift to <30 mV over 0–5 mA sensor current range, preserving measurement linearity. |
| USB Port Overvoltage Clamp | Industrial Analog Signal Conditioning |
Use Scenario: Protects USB 2.0 data lines and VBUS monitor inputs from accidental 12 V connection or ESD events. IC Role / Device Role / Timing Role: Shunt clamp absorbing transient energy before it reaches downstream protection ICs. Use Value: 40 W PZSM handles 100 μs surges up to ±15 kV contact discharge without parametric shift. |
Use Scenario: Stabilizes reference voltage for 12-bit SAR ADCs sampling 4–20 mA loop signals in PLC I/O modules. IC Role / Device Role / Timing Role: Low-drift Zener source feeding op-amp feedback network to set gain and offset. Use Value: −3.5 to 0.0 mV/K SZ limits full-scale error to <0.1 % over −40 °C to +85 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5226BS-7-F | 3.6 V, ±5 % tolerance, 225 mW Ptot, 300 Ω rdif | Higher impedance and looser tolerance reduce accuracy in precision references | Select when cost sensitivity outweighs regulation tightness and thermal margin is constrained |
| Vishay BZX84-C3V6 | 3.6 V, ±5 % tolerance, identical SOT23 package and 250 mW rating | Greater voltage spread increases risk of marginal reset assertion in low-VDD systems | Choose only for non-critical clamping where ±5 % variation is acceptable and legacy BOM alignment is required |
Compared with BZX84-B3V6VL, MMBZ5226BS-7-F trades regulation precision for broader availability and lower unit cost, while BZX84-C3V6 sacrifices voltage accuracy for simplified inventory management-neither matches the ±2 % tolerance and 90 Ω impedance needed for high-fidelity analog references.
Availability
BZX84-B3V6VL is available at Aetrix Electronics and suitable for microcontroller reset circuits, sensor bias references, USB port protection, and industrial analog signal conditioning requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for BZX84-B3V6VL 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, with core expertise in automotive-grade and industrial-standard components.
The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered for stable voltage reference and overvoltage protection in space-constrained, thermally demanding applications across consumer, industrial, and computing markets.
FAQ
What is the maximum continuous forward current for BZX84-B3V6VL?
The BZX84-B3V6VL is not intended for forward conduction; its absolute maximum forward current is 200 mA per limiting values table, but forward voltage is only specified at 10 mA (≤0.9 V). Continuous forward bias risks thermal runaway and permanent degradation-operation must remain in reverse-bias Zener region.
Can BZX84-B3V6VL replace BZX84-A3V6 in a precision reference design?
No-BZX84-A3V6 offers ±1 % tolerance (3.56–3.64 V), while BZX84-B3V6VL has ±2 % (3.53–3.67 V). The wider tolerance increases worst-case voltage error by 14 mV, which may exceed allowable drift in 12-bit ADC references or low-threshold reset circuits requiring sub-10 mV stability.
How does the n.c. pin (Pin 2) affect PCB layout or thermal performance?
Pin 2 is internally unconnected and electrically inert; it contributes no thermal path or signal integrity impact. Layout guidelines treat it as a mechanical stub-no copper pour or thermal relief is required, and solder mask clearance follows standard SOT23 footprint rules (0.6 mm pad width, 0.5 mm spacing).
Is BZX84-B3V6VL qualified for automotive applications?
No-this part is non-automotive qualified per Revision 7 datasheet Section 13. Automotive alternatives require explicit "-Q" suffix (e.g., BZX84-B3V6VL-Q) and undergo AEC-Q101 stress testing; using BZX84-B3V6VL in automotive systems voids warranty and violates functional safety requirements.
BZX84-B3V6VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84
- 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:
- 250 mW
- Impedance (Max) (Zzt):
- 600 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:
- TO-236AB
BZX84-B3V6VL FAQ
1.How can I place an order for BZX84-B3V6VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B3V6VL 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 BZX84-B3V6VL reliable?
The price and inventory of BZX84-B3V6VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B3V6VL is usually 5 days.
3.What payment methods are accepted for BZX84-B3V6VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B3V6VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B3V6VL?
BZX84-B3V6VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B3V6VL 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 BZX84-B3V6VL?
For technical support, including BZX84-B3V6VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B3V6VL requirements.
6.How does Aetrix verify that BZX84-B3V6VL is sourced from the original manufacturer or authorized distributors?
All BZX84-B3V6VL 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 BZX84-B3V6VL meets industry standards.
7.What is the process for return or replacement of BZX84-B3V6VL?
All BZX84-B3V6VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B3V6VL, 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 BZX84-B3V6VL part is unused and in its original packaging.
Return procedure for BZX84-B3V6VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B3V6VL Tags
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BZX84C3V3LT1G
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MMSZ4682T1G
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MM5Z5V1ST1G
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