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Nexperia USA Inc. BZX84W-C7V5X
- Part No.:
- BZX84W-C7V5X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C7V5X.pdf
- Description:
- DIODE ZENER 7.5V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,233
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Product details
Overview
BZX84W-C7V5X from Nexperia is a ±5% tolerance Zener voltage regulator diode in SOT323 (SC-70) package, rated for 7.5 V nominal breakdown voltage at 5 mA, with 80 Ω differential resistance, 4.0 mV/K temperature coefficient, and 275 mW total power dissipation. It provides precision voltage reference and regulation in low-power analog circuits, power supply feedback paths, and overvoltage protection.
For engineers reviewing the BZX84W-C7V5X datasheet, BZX84W-C7V5X pinout, BZX84W-C7V5X application, or BZX84W-C7V5X equivalent, key selection criteria include Zener voltage tolerance, thermal coefficient, junction-to-ambient thermal resistance (455 K/W), reverse leakage current (1 µA at 5 V), and SOT323 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals when reverse-biased above its specified Zener voltage. Its 7.5 V nominal breakdown is defined at IZ = 5 mA with ±5% tolerance, and exhibits a positive temperature coefficient of +4.0 mV/K-indicating voltage increases with junction temperature.
The SOT323 package enables surface-mount assembly on FR4 PCBs with single-sided copper, delivering 275 mW power handling under standard thermal conditions and supporting pulse surge capability up to 40 W for 100 µs. Reverse leakage remains ≤1 µA at VR = 5 V, ensuring low standby current in bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.00 V to 7.90 V at IZ = 5 mA - defines regulated output range for feedback or reference use |
| Tolerance | ±5% - specifies maximum deviation from nominal 7.5 V under production conditions |
| Differential Resistance (rdiff) | 80 Ω max at IZ = 5 mA - determines load regulation error sensitivity to current variation |
| Temperature Coefficient (SZ) | +4.0 mV/K - quantifies voltage drift per degree Celsius rise in junction temperature |
| Total Power Dissipation (Ptot) | 275 mW at Tamb = 25 °C on FR4 PCB - sets continuous DC power limit under standard mounting |
| Reverse Leakage (IR) | 1 µA max at VR = 5 V - ensures minimal current draw in standby or high-impedance bias networks |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - defines conduction threshold when used in forward-biased clamping |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals; compact 2.2 mm × 1.35 mm footprint optimized for high-density PCB layouts and reflow/wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connected to lower-potential node in Zener operation |
| 2 | Not Connected (n.c.) | Electrically isolated terminal; no internal bond wire or die connection |
| 3 | Cathode (K) | Reverse-bias voltage input and regulated output node; connects to higher-potential rail |
Key Features
| Feature | Design Value |
|---|---|
| Wide voltage range coverage | 2.4 V to 75 V across 74 types - supports standardized BOM consolidation for diverse regulation needs |
| Low differential resistance | 80 Ω max at 7.5 V - minimizes output voltage shift under varying load currents |
| Controlled temperature behavior | +4.0 mV/K coefficient - enables predictable drift compensation in temperature-sensitive references |
| High-frequency suitability | 150 pF capacitance at 1 MHz, 0 V - maintains stability in fast-switching or RF-coupled protection circuits |
| Robust surge capability | 40 W non-repetitive peak power for 100 µs - withstands transient overvoltage events without degradation |
Applications
| Power Supply Feedback | Overvoltage Protection |
|---|---|
Use Scenario: Used in the optocoupler feedback path of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 7.5 V threshold to control primary-side PWM duty cycle via secondary-side error amplifier. Use Value: Enables ±5% output regulation accuracy while maintaining low quiescent current (<1 µA standby leakage) and stable response across −55 °C to +150 °C ambient. | Use Scenario: Placed across sensitive IC inputs to clamp transients exceeding 7.5 V. IC Role / Device Role / Timing Role: Fast-acting shunt clamp absorbing ESD or inductive kick energy before downstream logic reaches destructive voltage levels. Use Value: Limits voltage excursions within 100 ns due to low junction capacitance (150 pF), with 40 W surge rating protecting against IEC 61000-4-2 Level 4 events. |
| Reference Voltage Source | Signal Level Translation |
Use Scenario: Provides stable bias voltage for op-amp comparators in battery-monitoring circuits. IC Role / Device Role / Timing Role: Precision 7.5 V reference establishing trip thresholds for low-battery detection and charge-state indication. Use Value: Delivers <±0.4 V total error over temperature (−55 °C to +150 °C) due to +4.0 mV/K coefficient and tight 7.0–7.9 V tolerance band. | Use Scenario: Shifts logic-level signals between 3.3 V and 5 V domains using Zener-based level-shifting topology. IC Role / Device Role / Timing Role: Cathode-connected to 5 V rail, anode driving 3.3 V node-clamps high-side swing to 7.5 V − 0.9 V = 6.6 V while passing low states. Use Value: Supports clean signal edge integrity with 0.9 V forward drop and 150 pF capacitance limiting rise/fall time degradation in 10 Mbps digital interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 | Same 7.5 V nominal, ±5% tolerance, but in larger SOT23 package; 350 mW Ptot; 120 Ω rdiff | Higher power handling but 50% larger footprint; less suitable for ultra-dense layouts | Select when thermal margin >275 mW is required and board space permits SOT23 |
| MMSZ5236B | 7.5 V nominal, ±5%, SOD-123 package; 500 mW Ptot; 100 Ω rdiff; −2.5 mV/K tempco | Negative temperature coefficient improves stability in some feedback loops; larger thermal mass reduces transient response speed | Prefer for higher-power or thermally demanding environments where negative tempco aligns with system drift budget |
Compared with BZX84W-C7V5X, BZX84-C7V5 offers greater power margin but sacrifices miniaturization, while MMSZ5236B trades SOT323 size for higher Ptot and opposite temperature drift-making BZX84W-C7V5X optimal for space-constrained, medium-stability analog regulation.
Availability
BZX84W-C7V5X is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and reference voltage source applications requiring stable component supply, consistent parametric performance, and SOT323-compatible manufacturing flow.
Supply support for BZX84W-C7V5X 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 specializing in high-performance, reliable discrete, logic, and MOSFET devices, with leadership in automotive-grade and industrial-standard components.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-effective, space-efficient voltage regulation and reference functions in consumer, industrial, and communications equipment.
FAQ
What is the maximum reverse current at 5 V for BZX84W-C7V5X?
The maximum reverse leakage current (IR) for BZX84W-C7V5X is 1 µA when reverse-biased at 5 V, measured at Tj = 25 °C. This value ensures minimal loading in high-impedance reference or bias networks and is confirmed in Table 7 of the official Nexperia datasheet Rev. 2 (January 2023).
Can BZX84W-C7V5X be used in place of BZX84-C7V5?
No-BZX84W-C7V5X uses a SOT323 package with 275 mW power rating and 80 Ω differential resistance, whereas BZX84-C7V5 uses SOT23 with 350 mW and 120 Ω. Pinout differs (SOT323 has n.c. pin 2; SOT23 has no n.c. pin), and thermal performance is not interchangeable without layout and derating review.
What is the thermal resistance from junction to ambient for this device?
The thermal resistance from junction to ambient (Rth(j-a)) is 455 K/W when mounted on a standard FR4 PCB with single-sided copper, tin-plated, and the recommended footprint. This value assumes free-air convection and is specified in Table 6 of the Nexperia datasheet for steady-state thermal design calculations.
Does BZX84W-C7V5X have automotive qualification?
No-BZX84W-C7V5X is a non-automotive qualified part, as explicitly stated in the Revision History (Table 10). For automotive applications, Nexperia offers the -Q qualified variants (e.g., BZX84W-Q7V5), which undergo additional AEC-Q101 stress testing and lot traceability not present in this commercial-grade version.
BZX84W-C7V5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-C7V5X FAQ
1.How can I place an order for BZX84W-C7V5X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C7V5X 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 BZX84W-C7V5X reliable?
The price and inventory of BZX84W-C7V5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C7V5X is usually 5 days.
3.What payment methods are accepted for BZX84W-C7V5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C7V5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C7V5X?
BZX84W-C7V5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C7V5X 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 BZX84W-C7V5X?
For technical support, including BZX84W-C7V5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C7V5X requirements.
6.How does Aetrix verify that BZX84W-C7V5X is sourced from the original manufacturer or authorized distributors?
All BZX84W-C7V5X 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 BZX84W-C7V5X meets industry standards.
7.What is the process for return or replacement of BZX84W-C7V5X?
All BZX84W-C7V5X units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C7V5X, 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 BZX84W-C7V5X part is unused and in its original packaging.
Return procedure for BZX84W-C7V5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C7V5X Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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