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Nexperia USA Inc. BZX384-C36,115
- Part No.:
- BZX384-C36,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C36,115.pdf
- Description:
- DIODE ZENER 36V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:1,278
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Product details
Overview
BZX384-C36,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 36 V nominal breakdown voltage at 2 mA test current, 300 mW total power dissipation, and 0.9 V forward voltage at 10 mA. It serves as a precision reference or overvoltage clamp in low-power analog signal conditioning and power rail stabilization circuits.
For engineers reviewing the BZX384-C36,115 datasheet, BZX384-C36,115 pinout, BZX384-C36,115 application, or BZX384-C36,115 equivalent, key selection criteria include its ±5 % VZ tolerance, 350 Ω maximum differential resistance at IZ = 2 mA, 90 μA reverse current at VR = 28.8 V, and thermal resistance of 415 K/W in free air.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable voltage across its terminals under varying load and input conditions. Its 36 V nominal Zener voltage is specified at IZ = 2 mA with a temperature coefficient of +0.05 mV/K, indicating minimal drift over temperature.
The device features non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses and junction-to-ambient thermal resistance of 415 K/W on FR4 PCB, enabling robust transient suppression in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.0 V to 38.0 V at IZ = 2 mA - defines clamping threshold with ±5 % tolerance band |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets continuous DC power limit on standard FR4 PCB |
| Differential Resistance (rdif) | ≤350 Ω at IZ = 2 mA - determines output impedance and regulation stiffness |
| Reverse Current (IR) | ≤90 μA at VR = 28.8 V - quantifies leakage below breakdown, critical for low-power bias networks |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - defines conduction drop when used in series polarity configurations |
| Junction Temperature (Tj) | −65 °C to +150 °C - specifies operational thermal envelope for reliability in industrial environments |
| Package | SOD323 (SC-76) - 2-pin surface-mount outline with 1.35 mm × 0.8 mm footprint and cathode marking bar |
Pinout & Package
SOD323 (SC-76) plastic surface-mounted package with 2 leads; cathode identified by a visible marking bar on the device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias anode reference point for voltage clamping |
| 2 | Anode (A) | Connected to ground or lower-potential rail; establishes reference for Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not required, e.g., supply rail monitoring |
| 300 mW power rating | Supports continuous operation in space-constrained consumer and industrial PCBs without heatsinking |
| 415 K/W junction-to-ambient Rth(j-a) | Permits thermal design margin up to 125 °C ambient when dissipating 200 mW on standard FR4 |
| Non-repetitive 40 W surge capability | Provides transient overvoltage protection against ESD or inductive kick without external TVS devices |
| SOD323 footprint compatibility | Enables direct replacement in legacy designs using SC-76 packages and automated pick-and-place assembly |
Applications
| Power Supply Rail Clamp | Reference Voltage Generator |
|---|---|
Use Scenario: Clamping 3.3 V or 5 V logic supply rails against transient spikes in microcontroller-based systems. IC Role / Device Role / Timing Role: Zener diode connected between rail and ground to shunt excess energy above 36 V during fast transients. Use Value: Prevents damage to downstream ICs by limiting rail voltage excursion to ≤38 V with <90 μA leakage at 28.8 V. |
Use Scenario: Generating a stable 36 V reference for ADC input scaling or comparator threshold setting. IC Role / Device Role / Timing Role: Reverse-biased Zener operating at 2 mA to deliver fixed voltage with <350 Ω dynamic impedance. Use Value: Delivers predictable 34–38 V output with ±5 % accuracy and <0.05 mV/K temperature drift for analog front-end calibration. |
| Signal Level Shifter | Overvoltage Protection Circuit |
Use Scenario: Biasing op-amp inputs or level-shifting sensor outputs in 24 V industrial I/O modules. IC Role / Device Role / Timing Role: Series-connected Zener used to offset signal common-mode range by 36 V relative to ground. Use Value: Enables safe interface between 0–5 V microcontroller peripherals and 24 V field-side signals without optocouplers. |
Use Scenario: Protecting CAN transceiver VCC pins from load-dump surges in automotive body control modules. IC Role / Device Role / Timing Role: Parallel-connected Zener absorbing 40 W pulse energy for 100 μs to clamp bus voltage. Use Value: Limits voltage overshoot to ≤38 V during ISO 7637-2 Pulse 5a events, preserving transceiver integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52-C36 | Same 36 V nominal VZ, ±5 % tolerance, SOD-123 package (larger footprint, 2.7 mm × 1.6 mm) | Higher Ptot = 500 mW but requires more PCB area; thermal resistance 350 K/W vs. 415 K/W | Select when higher continuous power handling is needed and board space permits larger package |
| Vishay BZX584-C36 | Identical SOD323 package and ±5 % tolerance, but tighter rdif ≤ 250 Ω at IZ = 2 mA | Better regulation stiffness for precision references, though same leakage (90 μA @ 28.8 V) | Prefer for analog measurement circuits requiring lower dynamic impedance and identical footprint |
Compared with BZX384-C36,115, BZT52-C36 offers higher power margin at the cost of board area, while BZX584-C36 improves regulation accuracy without changing layout-making it ideal for high-fidelity voltage references where stability outweighs cost sensitivity.
Availability
BZX384-C36,115 is available at Aetrix Electronics and suitable for power supply rail clamp, reference voltage generator, signal level shifter, and overvoltage protection circuits requiring stable component supply and consistent ±5 % Zener tolerance.
Supply support for BZX384-C36,115 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 manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability discrete and logic components for industrial, consumer, and communications markets.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered for low-power voltage regulation and reference applications where small size, tight tolerance options, and robust surge performance are essential.
FAQ
What is the maximum reverse voltage before breakdown for BZX384-C36,115?
The guaranteed minimum breakdown voltage is 34.0 V at IZ = 2 mA per datasheet Table 9. At VR = 28.8 V (80 % of nominal), reverse current is limited to ≤90 μA, confirming stable non-conduction below the specified Zener knee.
Can BZX384-C36,115 be used in parallel for higher power dissipation?
No-Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated device like BZT52-C36 or add external ballast resistors.
What is the cathode marking convention for SOD323 package?
The cathode is marked by a visible bar on the top surface of the SOD323 package, aligned with Pin 1 per Figure 11 in the datasheet. This matches the pinning diagram where Pin 1 = K (cathode) and Pin 2 = A (anode).
How does temperature affect the 36 V Zener voltage?
The temperature coefficient is +0.05 mV/K, meaning VZ increases by approximately 0.05 mV per Kelvin rise in junction temperature. Over −65 °C to +150 °C, this contributes less than ±1.1 mV drift-negligible for most 36 V reference applications.
BZX384-C36,115 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:
- ±5%
- 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-C36,115 FAQ
1.How can I place an order for BZX384-C36,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C36,115 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-C36,115 reliable?
The price and inventory of BZX384-C36,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C36,115 is usually 5 days.
3.What payment methods are accepted for BZX384-C36,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C36,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C36,115?
BZX384-C36,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C36,115 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-C36,115?
For technical support, including BZX384-C36,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C36,115 requirements.
6.How does Aetrix verify that BZX384-C36,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-C36,115 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-C36,115 meets industry standards.
7.What is the process for return or replacement of BZX384-C36,115?
All BZX384-C36,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C36,115, 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-C36,115 part is unused and in its original packaging.
Return procedure for BZX384-C36,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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