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Nexperia USA Inc. BZX384-A13X
- Part No.:
- BZX384-A13X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-A13X.pdf
- Description:
- DIODE ZENER 13V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,100
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Product details
Overview
BZX384-A13X from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 13 V nominal breakdown voltage at 5 mA, with 300 mW total power dissipation and 170 Ω maximum differential resistance. It operates across –65 °C to +150 °C ambient and serves as a precision reference or overvoltage clamp in low-power analog and digital supply rails.
For engineers reviewing the BZX384-A13X datasheet, BZX384-A13X pinout, BZX384-A13X application, or BZX384-A13X equivalent, key selection criteria include its 13.0 V ±1 % Zener voltage tolerance, 170 Ω dynamic impedance at 5 mA, thermal resistance of 415 K/W (junction-to-ambient), non-repetitive peak reverse power capability of 40 W, and cathode-anode polarity marking per SOD323 footprint.
Technical Context
This device functions as a two-terminal shunt voltage reference, maintaining stable output by conducting reverse current above its specified Zener voltage. Its operation relies on controlled avalanche or Zener breakdown depending on voltage range - for 13 V, it operates primarily in avalanche mode with positive temperature coefficient (~7.0 mV/K).
Designed for surface-mount use on FR4 PCBs with standard single-sided copper, it delivers regulated voltage under DC or pulsed reverse bias, with thermal performance defined by junction-to-ambient (415 K/W) and junction-to-solder-point (110 K/W) resistances. Reverse leakage remains ≤0.1 μA at 10.4 V, supporting low-quiescent-current designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.87 V to 13.13 V at IZ = 5 mA - tight ±1 % tolerance enables accurate voltage referencing in feedback loops or protection circuits |
| Differential Resistance (rdiff) | ≤170 Ω at IZ = 5 mA - low impedance ensures minimal output voltage shift under load variation |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - supports low-loss forward conduction during transient clamping or polarity-sensitive biasing |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - defines continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 μs - enables robust surge suppression against ESD or inductive kickback |
| Temperature Coefficient (SZ) | +7.0 mV/K at IZ = 5 mA - predictable positive drift aids thermal compensation in precision references |
| Reverse Current (IR) | ≤0.1 μA at VR = 10.4 V - ensures negligible leakage in high-impedance sensing or standby circuits |
Pinout & Package
The BZX384-A13X is housed in a SOD323 (SC-76) plastic surface-mount package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode identified by a marking bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to circuit ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % Zener voltage tolerance | Enables direct replacement in precision 13 V reference designs without recalibration |
| SOD323 package footprint | Supports high-density PCB layouts with standardized reflow-compatible solder lands (0.6 mm pad width) |
| 150 °C maximum junction temperature | Allows reliable operation in thermally constrained enclosures or near heat-generating components |
| 40 W non-repetitive peak power rating | Provides immunity to short-duration transients such as IEC 61000-4-2 ESD events (±8 kV contact) |
| Low 0.1 μA reverse leakage at 80 % VZ | Minimizes error in high-impedance divider networks used in ADC reference or comparator inputs |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Clamp |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit analog front-end in temperature/humidity sensor module. IC Role / Device Role / Timing Role: Shunt voltage reference providing 13 V bias to op-amp gain stage and ADC reference buffer. Use Value: ±1 % VZ tolerance and 170 Ω rdiff limit measurement error to <0.2 % full-scale across 0–70 °C ambient range. |
Use Scenario: Overvoltage protection on 12 V auxiliary power rail in USB-C PD sink design. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated when input exceeds 13 V due to adapter fault or cable surge. Use Value: 40 W PZSM rating absorbs 100 μs transients up to 310 V without degradation, meeting IEC 61000-4-5 Level 3. |
| Automotive Body Control Module (Non-Automotive Qualified) | IoT Node Battery Monitor Reference |
|
Use Scenario: Supply rail supervision in 12 V–compatible microcontroller subsystem for interior lighting control. IC Role / Device Role / Timing Role: Undervoltage lockout (UVLO) threshold set via resistor divider anchored to BZX384-A13X reference. Use Value: Stable 13.0 V ±1 % reference ensures consistent trip point across battery voltage sag (10.5–14.5 V) and temperature (-40–85 °C). |
Use Scenario: Precision voltage reference for Li-ion battery cell monitoring in wireless sensor node. IC Role / Device Role / Timing Role: Low-leakage Zener source for resistive divider feeding ADC input in ultra-low-power sleep mode. Use Value: 0.1 μA IR at 10.4 V reduces quiescent current by >95 % versus standard 1N4740A, extending 10-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ4689 | 13 V ±5 % tolerance; 200 mW Ptot; SOD-123 package (larger footprint) | Higher voltage drift and lower surge rating reduce suitability for precision or high-transient environments | Select only if cost sensitivity outweighs accuracy and reliability requirements |
| Vishay BZX384-C13 | 13 V ±5 % tolerance; identical SOD323 package and 300 mW rating | Looser tolerance increases reference error in closed-loop systems; higher leakage (≤1 μA) | Acceptable for non-critical biasing where ±5 % VZ is sufficient and board space matches |
Compared with BZX384-A13X, MMBZ4689 trades precision and surge resilience for lower cost and broader availability, while BZX384-C13 retains identical form factor but sacrifices 4× tighter voltage control and 10× lower leakage - making the A-grade optimal for metrology-grade references or compact surge-protected rails.
Availability
BZX384-A13X is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power delivery clamping, and IoT battery monitoring requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX384-A13X 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 essential semiconductors, with leadership in logic, discrete, and MOSFET technologies.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered for stable voltage reference and overvoltage protection in space-constrained, low-power applications across consumer, industrial, and communications equipment.
FAQ
What is the maximum continuous reverse current for BZX384-A13X at 25 °C?
The device does not specify a maximum continuous reverse current independent of power dissipation. At 25 °C ambient, its 300 mW power limit restricts continuous Zener current to approximately 23 mA (300 mW ÷ 13 V), assuming full voltage drop across the diode. Derating is required above 25 °C per the 415 K/W thermal resistance.
Can BZX384-A13X be used in automotive applications?
No - this part is explicitly marked as non-automotive qualified in the revision history (Rev. 4, January 2023). Nexperia states that BZX384-A13X is not tested or qualified to AEC-Q101 standards. Automotive designs must use designated -Q variants, which are separate orderable parts with distinct qualification testing and documentation.
How is cathode polarity identified on the SOD323 package?
The cathode is marked by a visible bar on the top surface of the SOD323 package, aligned with Pin 1 per the simplified outline in Table 2 of the datasheet. This bar corresponds to the cathode terminal (K), while the unmarked end is the anode (A). The physical orientation matches the standard SOD323 pinning convention used across Nexperia's small-signal diode portfolio.
What is the typical Zener impedance at 1 mA instead of 5 mA?
While the datasheet specifies 170 Ω maximum at 5 mA, impedance rises significantly at lower currents. Based on Figure 6 and 7 trends for adjacent voltages, differential resistance at 1 mA is approximately 350–400 Ω for BZX384-A13X - reflecting increased curvature in the Zener knee region and reduced carrier injection efficiency at sub-optimal bias.
BZX384-A13X 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):
- 13 V
- Tolerance:
- ±1%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-A13X FAQ
1.How can I place an order for BZX384-A13X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-A13X 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-A13X reliable?
The price and inventory of BZX384-A13X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-A13X is usually 5 days.
3.What payment methods are accepted for BZX384-A13X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-A13X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-A13X?
BZX384-A13X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-A13X 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-A13X?
For technical support, including BZX384-A13X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-A13X requirements.
6.How does Aetrix verify that BZX384-A13X is sourced from the original manufacturer or authorized distributors?
All BZX384-A13X 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-A13X meets industry standards.
7.What is the process for return or replacement of BZX384-A13X?
All BZX384-A13X units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-A13X, 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-A13X part is unused and in its original packaging.
Return procedure for BZX384-A13X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-A13X Tags
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MM5Z5V1ST1G
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