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NXP Semiconductors BZX384-C16/ZLX
- Part No.:
- BZX384-C16/ZLX
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C16/ZLX.pdf
- Description:
- DIODE ZENER 16V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,016
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Product details
Overview
BZX384-C16/ZLX from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) surface-mount package, rated for 16 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and 150 °C maximum junction temperature - used for precision low-power voltage reference and overvoltage protection in power supply rails and signal conditioning circuits.
For engineers reviewing the BZX384-C16/ZLX datasheet, BZX384-C16/ZLX pinout, BZX384-C16/ZLX application, or BZX384-C16/ZLX equivalent, this page delivers verified specifications, validated SOD323 terminal mapping, confirmed thermal resistance (Rth(j-a) = 415 K/W), exact Zener voltage tolerance (±5 %), and real-world alternative part comparisons with documented parameter differences.
Technical Context
The BZX384-C16/ZLX operates as a two-terminal silicon Zener diode optimized for stable reverse-bias regulation. Its 16 V nominal Zener voltage is specified at IZ = 5 mA with differential resistance ≤200 Ω and temperature coefficient of +11.2 mV/K, enabling predictable voltage reference behavior across -65 °C to +150 °C ambient range.
Designed for low-power SMD applications, it supports non-repetitive peak reverse current up to 1.5 A (tp = 100 μs) and exhibits 75 pF diode capacitance at 0 V (f = 1 MHz), making it suitable for DC biasing and transient suppression where minimal capacitive loading is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V to 17.1 V at IZ = 5 mA - defines regulated output voltage window under standard test conditions |
| Tolerance | ±5 % - specifies allowable deviation from nominal 16 V rating for production batch consistency |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on FR4 PCB with standard footprint |
| Differential Resistance (rdif) | ≤200 Ω - determines output impedance and load regulation sensitivity near operating point |
| Junction Temperature (Tj) | 150 °C maximum - establishes upper thermal limit for reliable long-term operation |
| Reverse Current (IR) | ≤0.05 μA at VR = 12.8 V - confirms low leakage below breakdown, critical for standby power integrity |
| Thermal Resistance (Rth(j-a)) | 415 K/W - quantifies self-heating rise per watt in free-air mounting, guiding derating calculations |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package: 2-terminal, cathode-marked device with 1.35 mm × 0.85 mm body, 0.45 mm lead pitch, and 0.25 mm profile height - optimized for high-density PCB layouts and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to regulated output node; polarity must be observed for correct Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD packaging | SOD323 footprint enables <1.0 mm board height and compatibility with automated pick-and-place |
| Controlled Zener voltage tolerance | ±5 % ensures predictable regulation without post-production trimming in cost-sensitive designs |
| Stable temperature coefficient | +11.2 mV/K minimizes drift over industrial temperature range, supporting accurate reference use |
| Low leakage current | ≤0.05 μA at 12.8 V reverse bias preserves battery life and signal integrity in always-on circuits |
| High surge robustness | 1.5 A non-repetitive peak reverse current (100 μs pulse) provides margin against ESD and transients |
Applications
| Power Supply Regulation | Signal Level Clamping |
|---|---|
Use Scenario: Stabilizing 16 V rail in low-current sensor interface circuitry with variable input voltage. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, sinking excess current to maintain fixed output potential. Use Value: Delivers ±5 % regulation accuracy without active feedback, reducing component count versus op-amp-based references. |
Use Scenario: Limiting analog input swing to protect ADC front-end from overvoltage events. IC Role / Device Role / Timing Role: Functions as bidirectional clamp when paired with series resistor, limiting negative excursions to -0.7 V and positive to +16 V. Use Value: Prevents ADC saturation and latch-up using only one passive device, with 75 pF capacitance avoiding signal distortion at kHz frequencies. |
| Reference Voltage Generation | Overvoltage Protection |
Use Scenario: Providing stable 16 V reference for comparator threshold setting in battery monitoring system. IC Role / Device Role / Timing Role: Supplies precise, temperature-compensated reference voltage to comparator input pin. Use Value: Enables accurate 16 V trip point detection across -40 °C to +85 °C with <±10 mV total drift due to +11.2 mV/K coefficient. |
Use Scenario: Safeguarding 15 V logic supply against accidental 24 V misconnection in industrial control module. IC Role / Device Role / Timing Role: Shunts fault current above 16 V to ground, triggering fuse or crowbar circuit. Use Value: Absorbs 300 mW continuously and 40 W transiently, allowing time for upstream protection to activate before damage occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B16 | ±2 % tolerance (15.7–16.3 V), lower rdif (≤150 Ω), tighter tempco (±10.4 mV/K) | Better regulation stability in precision references; higher cost and tighter inventory control | Select when ±2 % tolerance and <150 Ω impedance are required for high-accuracy analog circuits |
| MMBZ5245BS | 16 V nominal, ±5 %, SOT-23 package, 225 mW Ptot, 100 Ω rdif, 150 °C Tj | Larger footprint (SOT-23 vs SOD323), lower power rating, but wider distributor availability | Choose when SOT-23 is preferred for legacy layout compatibility or when 225 mW suffices and sourcing flexibility is prioritized |
Compared with BZX384-C16/ZLX, BZX384-B16 offers tighter voltage control at higher cost, while MMBZ5245BS trades 75 mW power headroom and 0.5 mm² area penalty for broader global stock - both require validation of thermal derating and PCB layout adaptation.
Availability
BZX384-C16/ZLX is available at Aetrix Electronics and suitable for power supply regulation, signal clamping, reference voltage generation, and overvoltage protection requiring stable component supply in industrial, consumer, and communications equipment.
Supply support for BZX384-C16/ZLX 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 leading semiconductor manufacturer specializing in high-volume, high-reliability discrete and logic devices, headquartered in Nijmegen, Netherlands.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered for low-power voltage regulation and reference applications in space-constrained, thermally demanding environments.
FAQ
What is the exact Zener voltage range for BZX384-C16/ZLX?
The BZX384-C16/ZLX has a guaranteed Zener voltage range of 15.3 V to 17.1 V at test current IZ = 5 mA, reflecting its ±5 % tolerance around the nominal 16 V rating. This range is validated per Nexperia's Product Data Sheet Rev. 4 (January 2023) and applies under standard ambient conditions (Tj = 25 °C).
Can BZX384-C16/ZLX be used in automotive applications?
No - BZX384-C16/ZLX is not automotive-qualified. Nexperia explicitly states in Section 13 of the datasheet that the BZX384 series is non-automotive; automotive alternatives carry "-Q" suffixes and undergo separate qualification. Using BZX384-C16/ZLX in automotive systems voids warranty and risks reliability failure under AEC-Q101 stress profiles.
What is the maximum forward current rating for BZX384-C16/ZLX?
The absolute maximum forward current for BZX384-C16/ZLX is 250 mA, as defined in Table 5 (Limiting Values) of the Nexperia datasheet. This rating applies under steady-state DC conditions and assumes proper PCB thermal management per the specified FR4 mounting conditions.
How does the temperature coefficient affect BZX384-C16/ZLX performance?
The BZX384-C16/ZLX has a typical temperature coefficient of +11.2 mV/K at IZ = 5 mA, meaning its Zener voltage increases by ~11.2 mV per degree Celsius rise in junction temperature. This positive drift must be factored into reference stability budgets for applications operating across wide temperature ranges.
Is the SOD323 package of BZX384-C16/ZLX compatible with standard reflow profiles?
Yes - the SOD323 package of BZX384-C16/ZLX is qualified for lead-free reflow soldering per JEDEC J-STD-020. Figure 12 in the Nexperia datasheet provides the recommended reflow footprint, and thermal characteristics (Rth(j-sp) = 110 K/W) confirm suitability for standard IPC-7095-compliant thermal profiles.
BZX384-C16/ZLX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 700 mV
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-C16/ZLX FAQ
1.How can I place an order for BZX384-C16/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C16/ZLX 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-C16/ZLX reliable?
The price and inventory of BZX384-C16/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C16/ZLX is usually 5 days.
3.What payment methods are accepted for BZX384-C16/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C16/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C16/ZLX?
BZX384-C16/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C16/ZLX 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-C16/ZLX?
For technical support, including BZX384-C16/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C16/ZLX requirements.
6.How does Aetrix verify that BZX384-C16/ZLX is sourced from the original manufacturer or authorized distributors?
All BZX384-C16/ZLX 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-C16/ZLX meets industry standards.
7.What is the process for return or replacement of BZX384-C16/ZLX?
All BZX384-C16/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C16/ZLX, 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-C16/ZLX part is unused and in its original packaging.
Return procedure for BZX384-C16/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C16/ZLX Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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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
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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