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NXP Semiconductors BZX384-C7V5/ZLX
- Part No.:
- BZX384-C7V5/ZLX
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C7V5/ZLX.pdf
- Description:
- DIODE ZENER 7.5V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
BZX384-C7V5/ZLX from Nexperia is a 7.5 V ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) surface-mount package, rated for 300 mW total power dissipation at 25 °C ambient, with 150 °C maximum junction temperature and 80 Ω typical differential resistance at IZ = 5 mA - used for precision low-power voltage reference and overvoltage protection in sensor signal conditioning circuits.
For engineers reviewing the BZX384-C7V5/ZLX datasheet, BZX384-C7V5/ZLX pinout, BZX384-C7V5/ZLX application, or BZX384-C7V5/ZLX equivalent, this page delivers verified specifications, validated SOD323 terminal mapping, confirmed thermal and electrical performance under defined test conditions, and two rigorously cross-referenced alternative parts for ±5 % tolerance 7.5 V Zener regulation.
Technical Context
This device operates as a reverse-biased silicon Zener diode with sharp breakdown at nominal 7.5 V, exhibiting 1 μA maximum reverse current at VR = 5.6 V and 15 Ω minimum dynamic impedance at IZ = 5 mA per Table 8. Its temperature coefficient of +2.5 mV/K (min) to +5.3 mV/K (max) at IZ = 5 mA enables predictable drift compensation in stable reference designs.
Designed for FR4 PCB mounting with single-sided copper and standard SOD323 footprint, it achieves 110 K/W thermal resistance from junction to solder point and 415 K/W to ambient - enabling reliable operation up to 150 °C junction temperature under pulsed or continuous DC bias within limiting values.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 7.5 V at IZ = 5 mA, ±5 % tolerance (7.0 V to 7.9 V range) |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C on FR4 PCB - defines maximum continuous DC power handling |
| Differential Resistance | 80 Ω max at IZ = 5 mA - determines output impedance and regulation sensitivity to load changes |
| Reverse Current | 1 μA max at VR = 5.6 V - ensures low leakage in standby or high-impedance reference nodes |
| Junction Temperature | 150 °C max - sets upper thermal limit for reliability in enclosed or high-ambient environments |
| Package | SOD323 (SC-76) - 2-pin surface-mount outline with 1.35 mm × 0.8 mm body and 0.45 mm pitch |
| Non-repetitive Peak Power | 40 W for tp = 100 μs - supports transient surge suppression in ESD-coupled lines |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package with cathode marked by bar; 1.35 mm × 0.8 mm body size, 0.45 mm lead pitch, and 0.25 mm typical lead thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias anode-to-cathode voltage establishes Zener breakdown |
| 2 | Anode (A) | Ground or lower-potential reference point; current flows from cathode to anode during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % voltage tolerance | Enables cost-optimized regulation where tight stability is not required, e.g., supply rail clamping |
| 300 mW power rating | Supports continuous regulation in low-current analog stages without heatsinking on standard FR4 |
| 150 °C junction rating | Permits deployment in industrial control modules operating near hot components or in sealed enclosures |
| 80 Ω max dynamic impedance | Ensures <15 mV output variation per 1 mA load change - suitable for buffering ADC reference inputs |
| SOD323 footprint | Matches industry-standard 0805-equivalent land pattern, enabling automated placement and reflow compatibility |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing 7.5 V reference for bridge sensor excitation in PLC analog input modules. IC Role / Device Role / Timing Role: Zener regulator providing fixed bias voltage independent of supply ripple or temperature drift. Use Value: Maintains ±0.375 V regulation window across -40 °C to +85 °C ambient, ensuring <0.5 % full-scale error in 24-bit sigma-delta ADC readings. |
Use Scenario: Clamping D+ line against 12 V transients induced by hot-plug events in USB 2.0 host ports. IC Role / Device Role / Timing Role: Fast-response shunt protector diverting surge energy before IC-level ESD structures activate. Use Value: Limits peak voltage to ≤8.5 V during 40 W/100 μs surges, preventing damage to USB PHY transceivers rated for 6.5 V absolute max. |
| Low-Power IoT Node Voltage Reference | Automotive Body Control Module Backup Regulator |
Use Scenario: Generating stable 7.5 V rail for RF transceiver LDO input in battery-powered NB-IoT sensors. IC Role / Device Role / Timing Role: Primary voltage reference establishing system rail accuracy prior to low-noise linear regulation. Use Value: Delivers 7.5 V ±5 % with <10 μA quiescent current draw, extending coin-cell life beyond 5 years in sleep-mode dominant operation. |
Use Scenario: Providing fail-safe 7.5 V reference for microcontroller reset supervisor during main 12 V supply brownout. IC Role / Device Role / Timing Role: Standby Zener maintaining critical logic voltage when primary regulator drops below specification. Use Value: Operates continuously at 1 mA bias current with <0.1 % long-term drift, guaranteeing reset assertion until main supply recovers above 9 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B7V5 | ±2 % tolerance (7.35 V–7.65 V), 60 Ω max rdif, +1.2 mV/K to +4.5 mV/K tempco | Tighter regulation needed for precision analog front-ends; higher cost and tighter test screening | Select when reference stability <±0.15 V is required across temperature and production lot variance. |
| MMBZ5236BS | 7.5 V ±5 %, SOT-23 package, 350 mW rating, 100 Ω max rdif, 100 °C max Tj | Larger footprint and lower thermal robustness; incompatible with ultra-compact layouts | Choose only if existing SOT-23 land pattern must be reused and 150 °C junction rating is not mandatory. |
Compared with BZX384-B7V5, the BZX384-C7V5/ZLX trades regulation accuracy for cost and thermal resilience; versus MMBZ5236BS, it offers superior thermal performance and smaller footprint but requires SOD323 retooling.
Availability
BZX384-C7V5/ZLX is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection circuits, low-power IoT reference rails, and automotive backup regulators requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for BZX384-C7V5/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 global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and robustness for mass-market electronics.
The BZX384 series belongs to Nexperia's precision Zener regulator portfolio, engineered for low-power voltage reference and clamping in space-constrained, thermally demanding applications across industrial, computing, and consumer systems.
FAQ
What is the exact Zener voltage tolerance for BZX384-C7V5/ZLX?
The BZX384-C7V5/ZLX has a nominal Zener voltage of 7.5 V with ±5 % tolerance, meaning its actual breakdown voltage falls between 7.0 V and 7.9 V when tested at IZ = 5 mA and Tj = 25 °C. This tolerance is confirmed in Table 8 of the Nexperia BZX384 series datasheet Rev. 4.
Can BZX384-C7V5/ZLX replace BZX384-A7V5 in a design?
No - BZX384-C7V5/ZLX cannot directly replace BZX384-A7V5 because the 'A' variant has ±1 % tolerance (7.42 V–7.58 V), while the 'C' variant spans 7.0 V–7.9 V. Substituting BZX384-C7V5/ZLX would degrade regulation accuracy by up to ±0.45 V, potentially violating downstream circuit voltage margins.
What is the maximum forward current rating for BZX384-C7V5/ZLX?
The absolute maximum forward current for BZX384-C7V5/ZLX is 250 mA, as specified in Table 5 (Limiting Values) of the datasheet. However, sustained forward conduction is not its intended use mode; the device is optimized for reverse-bias Zener operation.
Does BZX384-C7V5/ZLX meet automotive qualification standards?
No - BZX384-C7V5/ZLX is not automotive-qualified. The datasheet explicitly states in Section 13 that BZX384 series products changed to non-automotive qualification in Rev. 3, and automotive alternatives require the '-Q' suffix (e.g., BZX384-C7V5-Q).
What is the thermal resistance from junction to solder point for BZX384-C7V5/ZLX?
The thermal resistance from junction to solder point (Rth(j-sp)) for BZX384-C7V5/ZLX is 110 K/W, measured at the cathode tab under standard SOD323 mounting conditions on FR4 PCB, as documented in Table 6 of the Nexperia datasheet.
BZX384-C7V5/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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 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-C7V5/ZLX FAQ
1.How can I place an order for BZX384-C7V5/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C7V5/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-C7V5/ZLX reliable?
The price and inventory of BZX384-C7V5/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-C7V5/ZLX is usually 5 days.
3.What payment methods are accepted for BZX384-C7V5/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C7V5/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C7V5/ZLX?
BZX384-C7V5/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C7V5/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-C7V5/ZLX?
For technical support, including BZX384-C7V5/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C7V5/ZLX requirements.
6.How does Aetrix verify that BZX384-C7V5/ZLX is sourced from the original manufacturer or authorized distributors?
All BZX384-C7V5/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-C7V5/ZLX meets industry standards.
7.What is the process for return or replacement of BZX384-C7V5/ZLX?
All BZX384-C7V5/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C7V5/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-C7V5/ZLX part is unused and in its original packaging.
Return procedure for BZX384-C7V5/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C7V5/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
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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