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Nexperia USA Inc. BZX384-B7V5F
- Part No.:
- BZX384-B7V5F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-B7V5F.pdf
- Description:
- DIODE ZENER 7.5V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,850
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Product details
Overview
BZX384-B7V5F from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision low-power voltage reference and overvoltage protection in space-constrained PCBs. It delivers 7.5 V nominal breakdown at 5 mA, with 80 Ω max differential resistance, 15 μA max reverse current at 5.5 V, and operates up to +150 °C junction temperature - used in power supply feedback loops and analog sensor biasing.
For engineers reviewing the BZX384-B7V5F datasheet, BZX384-B7V5F pinout, BZX384-B7V5F application, or BZX384-B7V5F equivalent, this page provides verified electrical parameters, thermal behavior, SOD323 terminal mapping, real-world use cases, and validated alternative parts for design-in flexibility and supply continuity.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with tightly controlled VZ = 7.35 V to 7.65 V (±2 %) at IZ = 5 mA, exhibiting a positive temperature coefficient of +2.5 mV/K. Its low 80 Ω differential resistance ensures stable regulation under small-signal load variations.
Designed for surface-mount reliability on FR4 PCBs, it supports 300 mW steady-state dissipation at Tamb ≤ 25 °C and withstands non-repetitive 40 W surges (100 μs, square wave), making it suitable for transient suppression in low-energy signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 7.35 V to 7.65 V at IZ = 5 mA - defines precise regulation point for feedback networks |
| Differential Resistance rdif | ≤80 Ω - ensures minimal output voltage shift under ±1 mA load variation |
| Reverse Current IR | ≤15 μA at VR = 5.5 V - guarantees low leakage in standby or high-impedance bias circuits |
| Total Power Dissipation Ptot | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 |
| Non-repetitive Peak Power | 40 W (100 μs pulse) - enables short-duration surge clamping without failure |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in industrial and extended-temperature environments |
| Thermal Resistance Rth(j-a) | 415 K/W - determines self-heating rise per watt in free-air mounting |
Pinout & Package
SOD323 (SC-76) plastic surface-mounted package: 2-terminal, 1.35 mm × 0.85 mm body, 0.45 mm pitch, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias anode side ties to higher potential |
| 2 | Anode (A) | Typically grounded or tied to lower-potential rail; current flows into cathode during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VZ tolerance | Enables accurate voltage setting without post-production trimming in feedback divider networks |
| Low 80 Ω rdif | Maintains regulation stability across ±0.5 mA load changes in precision analog references |
| 40 W non-repetitive surge rating | Provides robustness against ESD and line transients in low-energy interface circuits |
| 150 °C max junction temperature | Supports reliable operation in thermally dense layouts near power components |
| SOD323 footprint compatibility | Enables high-density placement on compact PCBs with standard reflow soldering profiles |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp for GPIO Protection |
|---|---|
|
Use Scenario: Stabilizing output voltage in isolated DC-DC converter feedback loop using TL431-like topology. IC Role / Device Role / Timing Role: Provides precise 7.5 V reference for optocoupler-driven error amplifier input. Use Value: Tight ±2 % VZ tolerance reduces output voltage drift to ±0.15 % across production units. |
Use Scenario: Protecting microcontroller GPIO pins from accidental 12 V misconnection or inductive kickback. IC Role / Device Role / Timing Role: Shunts excess voltage above 7.65 V to ground before MCU input exceeds absolute maximum rating. Use Value: 40 W surge capability absorbs 100 μs transients without degradation, preserving pin integrity. |
| Temperature-Stable Sensor Bias | Low-Power Analog Reference Generator |
|
Use Scenario: Supplying constant current to silicon photodiode in ambient light sensor module. IC Role / Device Role / Timing Role: Acts as voltage-controlled current source via series resistor, leveraging +2.5 mV/K tempco for compensation. Use Value: Positive temperature coefficient counterbalances photodiode responsivity drift, improving measurement accuracy over –40 °C to +85 °C. |
Use Scenario: Generating stable 7.5 V reference for 12-bit ADC in battery-powered IoT node. IC Role / Device Role / Timing Role: Replaces larger TO-92 Zener in ultra-low-power sleep-mode circuitry where quiescent current must stay below 5 μA. Use Value: 15 μA max reverse leakage at 5.5 V ensures reference draw remains negligible during 99 % duty-cycle sleep cycles. |
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-C7V5 | ±5 % tolerance (7.0 V to 7.9 V), higher 150 μA IR at 5.5 V | Acceptable where cost sensitivity outweighs regulation precision | Select when budget constraints dominate and system-level calibration compensates for wider VZ spread |
| MMSZ5235B-7-F | ±5 % tolerance, 350 mW Ptot, SOD-123 package (larger footprint) | Higher power margin but incompatible with SOD323 layout | Choose only if board redesign permits larger package and thermal derating allows >300 mW operation |
Compared with BZX384-B7V5F, BZX384-C7V5 trades regulation accuracy for lower unit cost, while MMSZ5235B-7-F offers higher power headroom at the expense of PCB area and thermal path compatibility - neither is pin-compatible, requiring layout revision for substitution.
Availability
BZX384-B7V5F is available at Aetrix Electronics and suitable for power supply feedback references, GPIO overvoltage clamps, temperature-stable sensor biasing, and low-power analog reference generation requiring stable component supply across industrial, instrumentation, and consumer electronics programs.
Supply support for BZX384-B7V5F 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 solutions, headquartered in Nijmegen, Netherlands.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage regulation and reference applications in miniaturized, thermally constrained designs.
FAQ
What is the maximum continuous forward current for BZX384-B7V5F?
The device is not rated for continuous forward conduction; its primary function is reverse-bias Zener operation. Absolute maximum forward current is 250 mA per limiting values table, but sustained forward bias degrades regulation performance and is not recommended in design. Forward voltage is specified only for test conditions (e.g., 0.9 V at 10 mA pulse).
Can BZX384-B7V5F be used in automotive applications?
No - this part is explicitly non-automotive qualified per Nexperia's revision history (Rev. 4, Jan 2023). It lacks AEC-Q200 qualification, automotive-grade screening, and guaranteed PPAP documentation. For automotive use, select Nexperia's -Q qualified variants such as BZX384B7V5-Q or equivalent automotive Zeners.
How does thermal resistance affect BZX384-B7V5F's power handling on PCB?
With Rth(j-a) = 415 K/W, dissipating 300 mW raises junction temperature by ~125 °C above ambient - so at 25 °C ambient, Tj reaches ~150 °C, the absolute maximum. Derating is required above 25 °C; at 60 °C ambient, max safe Ptot drops to ~215 mW to stay within limit.
Is the cathode marking consistent across all BZX384-B7V5F reels and packaging?
Yes - per datasheet Table 4 and Figure 11, the cathode is always indicated by a bar on the top surface of the SOD323 package, aligned with Pin 1. Marking code "L4" is laser-etched adjacent to the bar, and this orientation is maintained across tape-and-reel, cut tape, and sample packaging per Nexperia's standard marking protocol.
BZX384-B7V5F 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):
- 7.5 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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-B7V5F FAQ
1.How can I place an order for BZX384-B7V5F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-B7V5F 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-B7V5F reliable?
The price and inventory of BZX384-B7V5F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-B7V5F is usually 5 days.
3.What payment methods are accepted for BZX384-B7V5F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-B7V5F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-B7V5F?
BZX384-B7V5F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-B7V5F 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-B7V5F?
For technical support, including BZX384-B7V5F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-B7V5F requirements.
6.How does Aetrix verify that BZX384-B7V5F is sourced from the original manufacturer or authorized distributors?
All BZX384-B7V5F 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-B7V5F meets industry standards.
7.What is the process for return or replacement of BZX384-B7V5F?
All BZX384-B7V5F units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-B7V5F, 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-B7V5F part is unused and in its original packaging.
Return procedure for BZX384-B7V5F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-B7V5F Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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