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Nexperia USA Inc. BZX384-A62-QX
- Part No.:
- BZX384-A62-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-A62-QX.pdf
- Description:
- DIODE ZENER 62V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,930
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Product details
Overview
BZX384-A62-Q from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 62 V nominal breakdown voltage at 5 mA, 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-A62-Q datasheet, BZX384-A62-Q pinout, BZX384-A62-Q application, or BZX384-A62-Q equivalent, key selection criteria include its 62 V ±1 % Zener voltage tolerance, 150 Ω typical differential resistance at IZ = 5 mA, 0.9 V forward voltage at 10 mA, AEC-Q101 qualification, and SOD323 thermal performance with Rth(j-a) = 415 K/W.
Technical Context
This device operates as a two-terminal silicon Zener diode, conducting in reverse breakdown to maintain a stable voltage across its terminals under specified current conditions. Its regulation relies on controlled avalanche and Zener mechanisms depending on voltage range - at 62 V, avalanche dominates, yielding low temperature coefficient (+0.05 mV/K) and predictable dynamic impedance.
The diode exhibits non-repetitive peak reverse power dissipation of 40 W for 100 μs pulses, enabling transient suppression capability, while its junction-to-ambient thermal resistance (415 K/W on FR4 PCB) defines steady-state power handling limits. Cathode-anode polarity is marked by a bar on the SOD323 body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 61.38 V to 62.62 V at IZ = 5 mA - tight ±1 % tolerance ensures precise voltage reference in feedback loops and sensing circuits. |
| Differential Resistance (rdif) | 450 Ω max at IZ = 5 mA - defines voltage regulation stiffness; lower values improve load regulation in precision applications. |
| Reverse Current (IR) | ≤ 0.1 μA at VR = 49.6 V - confirms low leakage below breakdown, critical for battery-powered standby circuits. |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - enables reliable anode-cathode conduction during forward-biased operation in clamp or protection paths. |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB with single-sided copper. |
| Junction Temperature (Tj) | −65 °C to +150 °C - supports operation in under-hood automotive environments and industrial control enclosures. |
| AEC-Q101 Qualified | Yes - validated for automotive discrete semiconductor stress testing, including HTGB, HTRB, and temperature cycling. |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic package with 2 leads, 2.7 mm × 1.6 mm footprint, 0.45 mm height, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node in shunt configuration; marking bar identifies this terminal for correct PCB orientation. |
| 2 | Anode (A) | Connected to ground or low-impedance return path; reverse-bias current flows from cathode to anode during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % Zener voltage tolerance | Enables high-accuracy voltage references without trimming, reducing BOM count in automotive sensor signal conditioning. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS modules requiring extended temperature and lifetime validation. |
| 300 mW power rating in SOD323 | Delivers usable regulation headroom in space-constrained layouts where larger packages (e.g., SOD123) are prohibited. |
| 40 W non-repetitive peak power | Supports transient voltage suppression in CAN/LIN bus interfaces and ESD-protected I/O lines without external TVS stacking. |
| Low 0.1 μA reverse leakage @ 49.6 V | Minimizes quiescent current in always-on circuits such as real-time clock backup supplies and low-power microcontroller reset networks. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Regulating reference voltage for analog front-end comparators monitoring door lock actuator current. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 62 V rail for overcurrent detection threshold setting. Use Value: ±1 % tolerance ensures consistent trip point across temperature and unit variance, eliminating field calibration. |
Use Scenario: Clamping amplifier input during 4–20 mA loop transients in pressure transmitter design. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting input voltage to protect op-amp inputs from >65 V surges. Use Value: 40 W pulse rating absorbs 100 μs line transients without degradation, maintaining long-term accuracy. |
| Automotive Infotainment Power Sequencing | Smart Meter Voltage Reference |
|
Use Scenario: Generating delayed enable signal via RC network charged through BZX384-A62-Q in power-up sequencing circuit. IC Role / Device Role / Timing Role: Precision Zener defining threshold voltage for comparator-based timing delay generator. Use Value: Low temperature coefficient (+0.05 mV/K) minimizes drift in delay timing across −40 °C to +125 °C ambient. |
Use Scenario: Providing stable 62 V reference for ADC full-scale calibration in polyphase energy metering ICs. IC Role / Device Role / Timing Role: High-stability shunt reference replacing bulkier TL431-based solutions in compact meter PCBs. Use Value: SOD323 footprint saves >50 % board area vs. TO-92 while maintaining ±1 % initial accuracy and AEC-Q101 traceability. |
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-B62-Q | ±2 % tolerance (60.8 V – 63.2 V), higher differential resistance (≤ 475 Ω), same package and AEC-Q101 rating. | Acceptable where 62 V reference stability is secondary to cost reduction in non-critical clamping functions. | Select when tighter tolerance is unnecessary and bill-of-materials cost optimization is prioritized over regulation precision. |
| MMSZ5259B-TP | ±5 % tolerance (59.3 V – 64.7 V), 500 mW Ptot, SOD-123 package, no AEC-Q101 qualification. | Suitable for consumer-grade power supplies but not automotive or industrial safety-critical systems. | Choose only for non-automotive applications where higher power margin offsets looser tolerance and lack of automotive qualification. |
Compared with BZX384-B62-Q and MMSZ5259B-TP, BZX384-A62-Q delivers superior voltage accuracy and automotive-grade reliability in the smallest footprint, making it optimal for space- and specification-constrained automotive electronics where reference stability directly impacts functional safety compliance.
Availability
BZX384-A62-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and smart metering systems requiring stable component supply with guaranteed long-term availability and AEC-Q101 traceability.
Supply support for BZX384-A62-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 logic, discrete, and MOSFET devices, with leadership in automotive-qualified components and efficient manufacturing.
The BZX384-Q series belongs to Nexperia's automotive-grade Zener diode product line, engineered specifically for precision voltage reference and transient protection in harsh-environment electronic control units.
FAQ
What is the minimum reverse current required to achieve rated Zener voltage for BZX384-A62-Q?
The rated Zener voltage of 62 V is specified at IZ = 5 mA. Operation below 1 mA yields significant deviation from nominal VZ; datasheet guarantees VZ within tolerance only at 5 mA, with typical test condition of 5 mA for production verification.
Can BZX384-A62-Q be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients at lower voltages but positive coefficients above ~5.6 V; at 62 V, the coefficient is +0.05 mV/K, causing thermal runaway if paralleled without individual ballast resistors. Use a single device or discrete power Zener arrays designed for sharing.
Is the SOD323 package suitable for reflow soldering per JEDEC J-STD-020?
Yes - Nexperia specifies compatibility with standard Pb-free reflow profiles (peak 260 °C, 20–40 s above 217 °C). The SOD323 outline in Figure 12 provides recommended solder land dimensions and stencil aperture guidelines for reliable joint formation.
How does the 40 W non-repetitive peak power rating translate to real-world surge handling?
This rating applies to 100 μs square-wave pulses at Tj = 25 °C prior to surge. In practice, it allows absorption of ISO 7637-2 Pulse 1 (inductive switch-off) transients up to 62 V × 0.645 A, provided thermal mass and layout minimize junction temperature rise during the event.
BZX384-A62-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):
- 62 V
- Tolerance:
- ±1%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 215 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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-A62-QX FAQ
1.How can I place an order for BZX384-A62-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-A62-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-A62-QX reliable?
The price and inventory of BZX384-A62-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-A62-QX is usually 5 days.
3.What payment methods are accepted for BZX384-A62-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-A62-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-A62-QX?
BZX384-A62-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-A62-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-A62-QX?
For technical support, including BZX384-A62-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-A62-QX requirements.
6.How does Aetrix verify that BZX384-A62-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-A62-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-A62-QX meets industry standards.
7.What is the process for return or replacement of BZX384-A62-QX?
All BZX384-A62-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-A62-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-A62-QX part is unused and in its original packaging.
Return procedure for BZX384-A62-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-A62-QX Tags
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