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Nexperia USA Inc. BZX384-C2V7-QX
- Part No.:
- BZX384-C2V7-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C2V7-QX.pdf
- Description:
- DIODE ZENER 2.7V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:4,622
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Product details
Overview
BZX384-C2V7-Q from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 2.7 V nominal breakdown at 5 mA, with 300 mW total power dissipation and qualified to AEC-Q101 for automotive use. It provides stable reference voltage in low-power biasing, overvoltage protection, and voltage clamping circuits.
For engineers reviewing the BZX384-C2V7-Q datasheet, BZX384-C2V7-Q pinout, BZX384-C2V7-Q application, or BZX384-C2V7-Q equivalent, key selection factors include its 2.5–2.9 V Zener range at IZ = 5 mA, 600 Ω max differential resistance, 100 μA reverse current at VR = 1 V, -3.5 to 0.0 mV/K temperature coefficient, and SOD323 thermal resistance of 110 K/W to solder point.
Technical Context
This device operates in reverse-biased Zener breakdown mode, delivering precise DC voltage regulation via controlled avalanche or Zener conduction depending on nominal voltage. Its 2.7 V rating places it in the low-voltage Zener region where temperature coefficient is negative and tightly bounded between –3.5 mV/K and 0.0 mV/K.
The SOD323 package enables surface-mount integration in space-constrained automotive and industrial PCBs, with thermal resistance from junction to solder point at 110 K/W and non-repetitive peak reverse power handling up to 40 W for 100 μs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.5 V to 2.9 V at IZ = 5 mA - defines usable regulation window under standard test conditions |
| Differential Resistance (rdif) | ≤600 Ω - limits output impedance and voltage deviation under load current changes |
| Reverse Current (IR) | ≤100 μA at VR = 1 V - ensures low leakage before breakdown onset |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power in standard FR4 layout |
| Temperature Coefficient (SZ) | –3.5 to 0.0 mV/K - quantifies VZ drift per degree Celsius across operating junction temperature |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 μs - supports transient overvoltage suppression without failure |
| Junction Temperature (Tj) | –65 °C to +150 °C - specifies full operational and storage thermal envelope |
Pinout & Package
Two-terminal SOD323 (SC-76) plastic surface-mount package with cathode marked by a bar on the body. Mounting requires standard reflow footprint per Figure 12 (0.5 mm pad width, 1.35 mm pad length, 2.1 mm center-to-center).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; polarity-sensitive terminal for reverse-bias operation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling |
| ±5 % Zener tolerance | Loosest tolerance tier in BZX384-Q series, enabling cost-effective general-purpose regulation |
| Low thermal resistance to solder point | 110 K/W - improves power handling in compact layouts by enhancing heat transfer to PCB copper |
| Non-repetitive surge capability | 40 W peak for 100 μs - enables robust ESD and transient suppression without derating |
| Small SOD323 footprint | 2.3 × 1.35 × 0.95 mm - supports high-density routing in infotainment, body control, and sensor modules |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 2.7 V reference for microcontroller ADC input scaling in door module ECUs. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precision analog reference level. Use Value: Maintains <±10 mV reference stability over –40 °C to +125 °C ambient due to bounded SZ and AEC-Q101 thermal validation. |
Use Scenario: Clamping op-amp input to prevent overvoltage damage from 4–20 mA loop transients. IC Role / Device Role / Timing Role: Low-leakage Zener clamp protecting front-end amplifier inputs. Use Value: Limits input to ≤2.9 V while drawing <100 μA at 1 V reverse bias, minimizing signal path loading. |
| Consumer Power Supply Feedback | Medical Diagnostic Equipment Biasing |
Use Scenario: Setting feedback threshold in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Precision Zener element in TL431-like shunt regulator configuration. Use Value: Enables 2.7 V setpoint with ≤600 Ω dynamic impedance, reducing output ripple sensitivity to load variation. |
Use Scenario: Generating stable bias voltage for photodiode transimpedance amplifier in pulse oximeter front-end. IC Role / Device Role / Timing Role: Low-noise voltage reference source for analog signal chain biasing. Use Value: Delivers <100 μA leakage at 1 V reverse bias, preventing dark-current-induced offset errors in low-light detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B2V7-Q | ±2 % tolerance (2.65–2.75 V), lower rdif (≤600 Ω same, but tighter distribution), identical package and thermal specs | Used where tighter regulation tolerance is required without changing board layout | Select when system-level voltage accuracy demands <±20 mV at 2.7 V instead of ±200 mV |
| MMSZ4678T1G | 2.7 V nominal, ±5 %, SOD-123 package (larger footprint), 500 mW Ptot, higher thermal resistance (220 K/W j-a) | Preferred in legacy designs using SOD-123 footprints or requiring higher continuous power | Choose only if SOD323 assembly is unavailable or 500 mW continuous dissipation is mandatory |
Compared with BZX384-C2V7-Q, the BZX384-B2V7-Q offers improved voltage accuracy at identical thermal performance, while MMSZ4678T1G trades smaller size and AEC-Q101 qualification for higher power rating and larger footprint-making the original optimal for space-constrained automotive modules needing qualified reliability.
Availability
BZX384-C2V7-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer power supply feedback loops, and medical diagnostic equipment requiring stable component supply with AEC-Q101 compliance.
Supply support for BZX384-C2V7-Q 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 components and energy-efficient solutions.
The BZX384-Q series belongs to Nexperia's automotive Zener diode product line, engineered specifically for robust voltage reference and clamping in harsh-environment vehicle subsystems such as lighting, ADAS sensors, and powertrain control units.
FAQ
What is the maximum continuous forward current for BZX384-C2V7-Q?
The device is not intended for continuous forward conduction. Its absolute maximum forward current is 250 mA per limiting values table, but forward operation is limited to brief pulses (tp ≤ 100 μs) during testing. In normal Zener regulation use, it operates exclusively in reverse bias.
Can BZX384-C2V7-Q be used in parallel for higher power dissipation?
No-Zener diodes exhibit negative temperature coefficients below ~5 V, causing thermal runaway when paralleled. Even matched units will divert current unevenly as temperature rises, risking premature failure. Use a single higher-power Zener or active regulation instead.
How does the ±5 % tolerance affect circuit design margin?
At 2.7 V nominal, ±5 % means VZ ranges from 2.5 V to 2.9 V at 5 mA. Designers must ensure downstream circuitry tolerates this 400 mV span-e.g., comparator hysteresis bands or ADC reference buffers must accommodate worst-case min/max regulation points.
Is the SOD323 package compatible with standard reflow profiles?
Yes-the SOD323 outline complies with JEDEC J-STD-020 moisture sensitivity level 1 and supports standard lead-free reflow profiles (peak 260 °C). Recommended solder land dimensions are 0.5 mm × 1.35 mm with 2.1 mm pitch, per Nexperia's Figure 12 footprint.
BZX384-C2V7-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX384-Q
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-C2V7-QX FAQ
1.How can I place an order for BZX384-C2V7-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C2V7-QX 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-C2V7-QX reliable?
The price and inventory of BZX384-C2V7-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C2V7-QX is usually 5 days.
3.What payment methods are accepted for BZX384-C2V7-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C2V7-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C2V7-QX?
BZX384-C2V7-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C2V7-QX 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-C2V7-QX?
For technical support, including BZX384-C2V7-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C2V7-QX requirements.
6.How does Aetrix verify that BZX384-C2V7-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-C2V7-QX 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-C2V7-QX meets industry standards.
7.What is the process for return or replacement of BZX384-C2V7-QX?
All BZX384-C2V7-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C2V7-QX, 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-C2V7-QX part is unused and in its original packaging.
Return procedure for BZX384-C2V7-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C2V7-QX Tags
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MM5Z5V1ST1G
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