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Nexperia USA Inc. BZX384-B36,115
- Part No.:
- BZX384-B36,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-B36,115.pdf
- Description:
- DIODE ZENER 36V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:76,542
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Product details
Overview
BZX384-B36,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 36 V nominal breakdown voltage at 5 mA, 300 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 and sensor biasing circuits.
For engineers reviewing the BZX384-B36,115 datasheet, BZX384-B36,115 pinout, BZX384-B36,115 application, or BZX384-B36,115 equivalent, this page delivers verified electrical parameters, thermal behavior, cathode/anode terminal mapping, real-world regulation use cases, and validated alternative parts with documented tolerance and temperature coefficient differences.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load or input conditions. Its 36 V nominal Zener voltage is specified at IZ = 5 mA with ±2 % tolerance, and exhibits a positive temperature coefficient of +25.2 mV/K at that current.
Differential resistance is 350 Ω max at IZ = 2 mA, reverse leakage is ≤90 μA at VR = 29 V, and junction-to-ambient thermal resistance is 415 K/W on FR4 PCB - confirming suitability for space-constrained, thermally unassisted regulation tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal at IZ = 5 mA; ±2 % tolerance ensures tight regulation band for reference stability |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C; defines maximum continuous DC power handling on standard FR4 PCB |
| Peak Reverse Power (PZSM) | 40 W for tp = 100 μs; supports transient overvoltage clamping without failure |
| Differential Resistance (rdif) | ≤350 Ω at IZ = 2 mA; low impedance improves regulation accuracy under small current variations |
| Reverse Leakage (IR) | ≤90 μA at VR = 29 V; ensures minimal quiescent current draw in standby bias networks |
| Temperature Coefficient (SZ) | +25.2 mV/K at IZ = 2 mA; predictable drift enables compensation in precision references |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA; confirms low-loss forward conduction for dual-direction protection schemes |
Pinout & Package
The BZX384-B36,115 is housed in a SOD323 (SC-76) surface-mount plastic package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode marked by a bar on the device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias anode-to-cathode voltage establishes Zener breakdown |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for controlled reverse conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter output regulation than ±5 % variants, reducing need for post-regulation trimming |
| 300 mW power rating | Supports stable operation in low-current analog rails (e.g., op-amp bias, ADC reference) without heatsinking |
| 40 W surge capability | Clamps ESD or inductive spikes up to 100 μs without degradation, extending system-level robustness |
| SOD323 footprint | 0.65 mm pitch and 1.35 mm length enable high-density placement on compact PCBs with standard reflow profiles |
| +25.2 mV/K tempco | Predictable positive drift allows matching with NTC components or compensation in temperature-stable references |
Applications
| Industrial Sensor Biasing | Low-Power Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 36 V bias to MEMS pressure sensor bridge excitation circuitry in factory automation nodes. IC Role / Device Role / Timing Role: Zener voltage reference establishing fixed excitation potential independent of supply ripple. Use Value: Maintains sensor full-scale output accuracy within ±0.5 % over -40 °C to +85 °C due to known tempco and low rdif. |
Use Scenario: Generating clean 36 V threshold for external reset supervisor IC monitoring 48 V industrial bus voltage. IC Role / Device Role / Timing Role: Precision clamping element defining exact trip point for brown-out detection. Use Value: ±2 % tolerance eliminates need for external resistor divider, reducing BOM count and layout area. |
| Programmable Logic Controller (PLC) Input Protection | IoT Node Battery Voltage Monitor |
Use Scenario: Shunting transients on 36 V analog input channel of modular PLC backplane. IC Role / Device Role / Timing Role: Overvoltage clamp absorbing fast spikes before signal conditioning stage. Use Value: 40 W non-repetitive surge rating handles 1 kV/μs transients per IEC 61000-4-4 without parameter shift. |
Use Scenario: Scaling down 36 V LiFePO4 stack voltage to 3.3 V MCU ADC input via resistive divider with reference stabilization. IC Role / Device Role / Timing Role: Low-leakage (≤90 μA) shunt reference improving divider accuracy at low battery states. Use Value: Sub-100 μA IR at 29 V prevents measurable discharge during multi-week sleep cycles. |
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 | 36 V ±5 % tolerance; 200 mW Ptot; rdif = 70 Ω typical | Higher leakage (≤5 μA @ 28.8 V); lower surge rating (25 W) | Select for cost-sensitive, non-critical bias where tighter tolerance is unnecessary |
| Vishay BZX384-C36,115 | 36 V ±5 % tolerance; identical package and Ptot; rdif = 350 Ω max | Same thermal performance but wider voltage spread increases calibration effort | Choose when production test margin accommodates ±5 % variation and tempco is secondary |
Compared with BZX384-B36,115, the ON Semiconductor part trades tolerance and surge capacity for lower dynamic impedance, while the Vishay C-series sacrifices precision for broader availability and lower unit cost - making the BZX384-B36,115 optimal for designs requiring guaranteed 36 V ±0.72 V regulation with robust transient immunity.
Availability
BZX384-B36,115 is available at Aetrix Electronics and suitable for industrial sensor biasing, PLC input protection, microcontroller reset supervision, and IoT battery monitoring requiring stable component supply and traceable sourcing.
Supply support for BZX384-B36,115 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 discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The BZX384 series belongs to Nexperia's precision Zener regulator portfolio, engineered specifically for stable voltage reference and overvoltage protection in space-constrained, thermally unmanaged applications across industrial and consumer electronics.
FAQ
What is the maximum continuous reverse current the BZX384-B36,115 can sustain at 25 °C ambient?
The device does not specify a maximum continuous reverse current; instead, it defines maximum power dissipation of 300 mW at Tamb ≤ 25 °C. At 36 V Zener voltage, this corresponds to ~8.3 mA average reverse current. Exceeding this value risks thermal runaway unless board-level cooling is enhanced.
Can the BZX384-B36,115 be used in series to achieve higher regulation voltages?
No - Zener diodes in series exhibit cumulative tolerance and tempco errors, and mismatched dynamic impedances cause uneven voltage division. For >36 V regulation, use a single higher-voltage Zener (e.g., BZX384-B39,115) or a dedicated adjustable shunt regulator IC.
Is the SOD323 package compatible with standard reflow soldering profiles for lead-free assembly?
Yes - Nexperia specifies compatibility with IPC/JEDEC J-STD-020D reflow profiles. The SOD323 footprint in Figure 12 supports peak temperatures up to 260 °C for ≤30 seconds, with recommended solder paste volume and land geometry provided in the datasheet.
How does the +25.2 mV/K temperature coefficient affect long-term reference stability?
At 36 V nominal, +25.2 mV/K equates to +0.07 %/°C drift. Over a 100 °C range (−40 °C to +60 °C), this produces ~2.5 V total shift - acceptable for non-precision biasing but requires compensation (e.g., matched NTC network) in metrology-grade references.
BZX384-B36,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX384
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 25.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-B36,115 FAQ
1.How can I place an order for BZX384-B36,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-B36,115 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 BZX384-B36,115 reliable?
The price and inventory of BZX384-B36,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-B36,115 is usually 5 days.
3.What payment methods are accepted for BZX384-B36,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-B36,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-B36,115?
BZX384-B36,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-B36,115 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 BZX384-B36,115?
For technical support, including BZX384-B36,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-B36,115 requirements.
6.How does Aetrix verify that BZX384-B36,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-B36,115 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 BZX384-B36,115 meets industry standards.
7.What is the process for return or replacement of BZX384-B36,115?
All BZX384-B36,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-B36,115, 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 BZX384-B36,115 part is unused and in its original packaging.
Return procedure for BZX384-B36,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-B36,115 Tags
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