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Nexperia USA Inc. BZX84W-B7V5F
- Part No.:
- BZX84W-B7V5F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-B7V5F.pdf
- Description:
- DIODE ZENER 7.5V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:7,309
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Product details
Overview
BZX84W-B7V5F from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT323 (SC-70) package, rated for 7.5 V nominal Zener voltage at 5 mA, 80 Ω differential resistance, and 4.0 mV/K temperature coefficient. It delivers stable reference voltage in low-power analog circuits, power supply feedback loops, and overvoltage protection nodes operating up to 150 °C junction temperature.
For engineers reviewing the BZX84W-B7V5F datasheet, BZX84W-B7V5F pinout, BZX84W-B7V5F application, or BZX84W-B7V5F equivalent, this page provides verified Zener voltage, thermal resistance, reverse leakage, forward voltage, and package footprint data essential for precision voltage reference design, PCB layout, and high-frequency regulation validation.
Technical Context
This Zener diode operates in reverse breakdown mode with a tightly controlled 7.35 V to 7.65 V working voltage range at IZ = 5 mA. Its 80 Ω differential resistance ensures minimal output impedance under load variation, while the +4.0 mV/K temperature coefficient enables predictable drift compensation in mid-voltage reference designs.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it sustains 275 mW total power dissipation and withstands non-repetitive 40 W surge pulses (100 µs). The 150 °C maximum junction temperature supports operation in industrial ambient environments up to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.35 V to 7.65 V at IZ = 5 mA - defines precise regulation point for feedback and clamping |
| Differential Resistance (rdif) | 80 Ω max at IZ = 5 mA - determines output impedance and load regulation error |
| Temperature Coefficient (SZ) | +4.0 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius for thermal stability analysis |
| Reverse Leakage (IR) | 1 µA max at VR = 5 V - limits standby current in high-impedance bias networks |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - sets minimum forward conduction threshold for polarity-sensitive protection |
| Total Power Dissipation (Ptot) | 275 mW at Tamb = 25 °C on FR4 - constrains continuous DC power handling in compact layouts |
| Junction-to-Ambient Rth(j-a) | 455 K/W - determines thermal rise per watt for reliability margining on standard PCBs |
Pinout & Package
SOT323 (SC-70) leadless plastic surface-mount package with 3 terminals, 1.3 mm × 1.8 mm footprint, and 0.65 mm pitch. Designed for reflow soldering using standard 0.55 mm × 0.5 mm pad dimensions per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in Zener regulation configuration |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no PCB trace or thermal pad connection |
| 3 | Cathode (K) | Reverse-biased terminal; connects to higher-potential node and serves as regulated output reference |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation accuracy than ±5 % variants, reducing need for post-calibration in precision references |
| Low 80 Ω differential resistance | Maintains <1 % output deviation across ±1 mA load current change, critical for stable feedback paths |
| +4.0 mV/K temperature coefficient | Provides predictable positive drift for compensation against negative-coefficient components in mixed-technology circuits |
| 150 °C maximum junction temperature | Supports uninterrupted operation in under-hood, motor drive, and industrial control enclosures without derating |
| 1 µA reverse leakage at 5 V | Minimizes quiescent current draw in battery-powered voltage monitors and always-on supervisor circuits |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck-boost converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener diode provides stable 7.5 V reference to TL431 cathode or comparator input, setting precise output setpoint. Use Value: Tight ±2 % tolerance and low 80 Ω rdif ensure <±0.5 % output regulation accuracy across line/load/temperature variations. |
Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient overvoltage events exceeding 7.5 V. IC Role / Device Role / Timing Role: Acts as shunt clamp between signal line and ground, conducting only when voltage exceeds VZ. Use Value: 1 µA leakage at 5 V prevents signal distortion; 40 W non-repetitive surge rating absorbs ESD and inductive spikes without failure. |
| High-Frequency Bias Network | Temperature-Compensated Reference Generator |
|
Use Scenario: Establishing DC bias points in RF amplifier stages or high-speed op-amp circuits requiring low-capacitance references. IC Role / Device Role / Timing Role: Provides low-noise, low-capacitance (4 pF) voltage reference in signal path without loading sensitive nodes. Use Value: 4 pF diode capacitance at 1 MHz minimizes phase shift and bandwidth degradation in >100 MHz signal chains. |
Use Scenario: Generating a stable reference voltage in instrumentation amplifiers where thermal drift must be actively compensated. IC Role / Device Role / Timing Role: Paired with NTC thermistor or complementary transistor to offset system-level temperature drift. Use Value: +4.0 mV/K coefficient enables direct cancellation of −2.2 mV/K op-amp input offset drift in precision sensor front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-C7V5 | ±5 % tolerance (7.0–7.9 V), identical package and thermal specs | Acceptable where ±0.5 V regulation window suffices; higher leakage (1.5 µA at 5 V) | Select for cost-sensitive designs where tighter voltage accuracy is not required |
| MMSZ5236B | ±5 % tolerance, SOD-123 package, 90 Ω rdif, 1 µA leakage at 5 V | Larger footprint (2.7 × 1.4 mm vs. 1.3 × 1.8 mm); lower thermal resistance (350 K/W) | Choose when board space allows larger package and improved thermal performance is prioritized |
Compared with BZX84W-C7V5, the BZX84W-B7V5F offers tighter voltage control critical for closed-loop systems; versus MMSZ5236B, it delivers superior space efficiency and matching thermal behavior on FR4, though with slightly higher thermal resistance.
Availability
BZX84W-B7V5F is available at Aetrix Electronics and suitable for power supply feedback reference, overvoltage clamp protection, and high-frequency bias network applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for BZX84W-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 discrete and logic devices, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered for stable voltage regulation in space-constrained, high-frequency, and thermally demanding applications across industrial and computing systems.
FAQ
What is the maximum continuous power dissipation for BZX84W-B7V5F at 70 °C ambient?
At 70 °C ambient, derating applies: Ptot = 275 mW − [(70 − 25) × (275 mW / 455 K/W)] = 229 mW. This accounts for linear thermal derating per the 455 K/W junction-to-ambient resistance specified for FR4 mounting.
Can BZX84W-B7V5F replace BZX84W-B7V5 in a design?
Yes-BZX84W-B7V5F is the full-marking variant of BZX84W-B7V5, with identical electrical specifications, package, and thermal characteristics. The "F" suffix denotes tape-and-reel packaging and does not affect device functionality or ratings.
Is pin 2 electrically isolated or internally bonded?
Pin 2 is explicitly designated "n.c." (not connected) in the official Nexperia datasheet and graphic symbol. It is fully isolated-no internal bond wire or die connection exists, and PCB layout must leave it unconnected to avoid parasitic coupling or mechanical stress.
What is the typical reverse recovery time for BZX84W-B7V5F?
Zener diodes like BZX84W-B7V5F are not characterized for reverse recovery time because they operate in steady-state reverse breakdown, not switching mode. Their primary high-frequency limitation is 4 pF junction capacitance, which governs AC impedance above ~10 MHz-not recovery behavior.
BZX84W-B7V5F 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:
- ±2%
- 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-B7V5F FAQ
1.How can I place an order for BZX84W-B7V5F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-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 BZX84W-B7V5F reliable?
The price and inventory of BZX84W-B7V5F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-B7V5F is usually 5 days.
3.What payment methods are accepted for BZX84W-B7V5F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-B7V5F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-B7V5F?
BZX84W-B7V5F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-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 BZX84W-B7V5F?
For technical support, including BZX84W-B7V5F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-B7V5F requirements.
6.How does Aetrix verify that BZX84W-B7V5F is sourced from the original manufacturer or authorized distributors?
All BZX84W-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 BZX84W-B7V5F meets industry standards.
7.What is the process for return or replacement of BZX84W-B7V5F?
All BZX84W-B7V5F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-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 BZX84W-B7V5F part is unused and in its original packaging.
Return procedure for BZX84W-B7V5F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-B7V5F 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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