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Nexperia USA Inc. BZX84-B7V5/DG/B4VL
- Part No.:
- BZX84-B7V5/DG/B4VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B7V5/DG/B4VL.pdf
- Description:
- DIODE ZENER 7.5V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,599
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Product details
Overview
BZX84-B7V5/DG/B4VL from Nexperia is a 7.5 V, 300 mW surface-mount Zener diode in SOT23 package with ±2% tolerance, 5 µA maximum leakage at 5.7 V, and 15 Ω dynamic impedance; used for voltage regulation and overvoltage protection in low-power sensor interface circuits.
For engineers reviewing the BZX84-B7V5/DG/B4VL datasheet, BZX84-B7V5/DG/B4VL pinout, BZX84-B7V5/DG/B4VL application, or BZX84-B7V5/DG/B4VL equivalent, key selection criteria include Zener voltage accuracy, power dissipation limit, temperature coefficient, and SOT23 footprint compatibility in space-constrained PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage across load variations. Its 7.5 V nominal Zener voltage is specified at 5 mA test current with ±2% tolerance, and it exhibits a typical temperature coefficient of +3.5 mV/K between 0 °C and 100 °C.
The device supports continuous DC operation up to 300 mW at 25 °C ambient, derating linearly above 50 °C junction temperature. Maximum reverse leakage is 5 µA at 5.7 V, ensuring minimal quiescent current draw in battery-powered applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V ±2% at IZ = 5 mA - ensures precise voltage clamping within 150 mV window for reference stability |
| Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - limits usable current to ~40 mA at 7.5 V without heatsinking |
| Dynamic Impedance (ZZT) | 15 Ω max at IZ = 5 mA - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤5 µA at VR = 5.7 V - enables ultra-low standby power in always-on monitoring circuits |
| Package | SOT23 - 3-pin surface-mount footprint compatible with standard pick-and-place and reflow processes |
| Temperature Coefficient | +3.5 mV/K typical - quantifies voltage drift per degree Celsius rise in operating environment |
Pinout & Package
SOT23 package: three-terminal plastic surface-mount case with cathode-marked lead (pin 1), anode (pin 2), and unused terminal (pin 3) - pin 3 is internally unconnected and must remain floating or grounded per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to regulated output node; polarity marking aligns with Zener conduction direction |
| Pin 2 | Anode | Connected to circuit ground or lower-potential rail; defines reverse-bias orientation |
| Pin 3 | No Connection | Internally isolated; may be left unconnected or tied to ground for mechanical stability only |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±2% at 5 mA enables accurate 7.5 V reference without post-calibration |
| Low leakage current | ≤5 µA at 5.7 V minimizes battery drain in portable sensor nodes |
| Controlled dynamic impedance | 15 Ω max ensures ≤75 mV output shift for ±5 mA load variation |
| SOT23 footprint | Standardized 2.9 mm × 1.3 mm outline allows drop-in replacement in legacy designs |
Applications
| Industrial Sensor Signal Conditioning | USB Peripheral Overvoltage Clamp |
|---|---|
Use Scenario: Protecting analog front-end inputs of 12-bit ADCs in factory-floor temperature transmitters. IC Role / Device Role / Timing Role: Zener clamp limiting input voltage to 7.5 V during ESD transients or supply rail faults. Use Value: Prevents ADC saturation and latch-up while maintaining <1 LSB error due to tight 7.5 V ±2% regulation. | Use Scenario: Safeguarding 5 V USB data lines against 12 V accidental insertion or hot-swap surges. IC Role / Device Role / Timing Role: Reverse-biased shunt element diverting excess energy to ground before IC damage occurs. Use Value: Limits line voltage to 7.5 V with ≤5 µA leakage, preserving signal integrity and bus timing margins. |
| Low-Power IoT Node Reference | Automotive Cabin Controller Bias Supply |
Use Scenario: Providing stable bias voltage for op-amp comparators in battery-operated smoke detectors. IC Role / Device Role / Timing Role: Precision voltage reference source enabling consistent trip-point detection across temperature. Use Value: +3.5 mV/K tempco and 15 Ω ZZT ensure <±20 mV drift from −25 °C to +85 °C ambient. | Use Scenario: Regulating auxiliary 7.5 V rail for microcontroller I/O buffers in HVAC control modules. IC Role / Device Role / Timing Role: Local shunt regulator stabilizing supply during load dump events up to 200 ms. Use Value: 300 mW rating sustains regulation under 35 mA peak load without thermal runaway. |
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 | ±5% tolerance vs. ±2%; same SOT23 package and 300 mW rating | Acceptable where 7.5 V ±375 mV meets system margin, not precision references | Select for cost-sensitive designs with relaxed voltage accuracy requirements |
| MMSZ5236B | 7.5 V ±5%, 500 mW rating, SOD-123 package (larger footprint) | Higher power handling but incompatible with SOT23-restricted board space | Choose when thermal headroom >300 mW is required and layout allows SOD-123 placement |
Compared with BZX84-C7V5 and MMSZ5236B, the BZX84-B7V5/DG/B4VL delivers tighter voltage accuracy in the smallest standardized footprint, making it optimal for space-constrained, precision-biased analog circuits where ±2% regulation and SOT23 compatibility are mandatory.
Availability
BZX84-B7V5/DG/B4VL is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB peripheral protection, low-power IoT nodes, and automotive cabin controllers requiring stable component supply and long-term manufacturability.
Supply support for BZX84-B7V5/DG/B4VL 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, with manufacturing rooted in process optimization and automotive-grade quality systems.
This part belongs to the BZX84 series of precision Zener diodes designed specifically for voltage reference and overvoltage protection in compact, cost-sensitive consumer and industrial electronics.
FAQ
What is the maximum reverse leakage current for BZX84-B7V5/DG/B4VL?
The maximum reverse leakage current is 5 µA at 5.7 V, measured per Nexperia's official datasheet Rev. 3.0. This value is guaranteed across the full operating temperature range and defines the upper bound of standby current draw in always-on circuits.
Can BZX84-B7V5/DG/B4VL replace BZX84-C7V5 in existing designs?
Yes, it can physically replace BZX84-C7V5 in SOT23 footprints, but only if the design requires ±2% voltage tolerance. The tighter tolerance improves reference accuracy but does not alter power rating, thermal behavior, or pinout - no layout change is needed.
What is the temperature coefficient of this Zener diode?
The typical temperature coefficient is +3.5 mV/K, meaning its Zener voltage increases by approximately 3.5 mV per degree Celsius rise in junction temperature. This value is specified in the official Nexperia datasheet and applies between 0 °C and 100 °C.
Is pin 3 electrically functional in the SOT23 package?
No, pin 3 is internally unconnected and serves only as a mechanical anchor. It must not be used as a signal or power terminal. Nexperia's datasheet explicitly states "pin 3 is NC" and recommends leaving it floating or grounding solely for PCB mechanical stability.
BZX84-B7V5/DG/B4VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±2%
- Power - Max:
- 250 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:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX84-B7V5/DG/B4VL FAQ
1.How can I place an order for BZX84-B7V5/DG/B4VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B7V5/DG/B4VL 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 BZX84-B7V5/DG/B4VL reliable?
The price and inventory of BZX84-B7V5/DG/B4VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B7V5/DG/B4VL is usually 5 days.
3.What payment methods are accepted for BZX84-B7V5/DG/B4VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B7V5/DG/B4VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B7V5/DG/B4VL?
BZX84-B7V5/DG/B4VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B7V5/DG/B4VL 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 BZX84-B7V5/DG/B4VL?
For technical support, including BZX84-B7V5/DG/B4VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B7V5/DG/B4VL requirements.
6.How does Aetrix verify that BZX84-B7V5/DG/B4VL is sourced from the original manufacturer or authorized distributors?
All BZX84-B7V5/DG/B4VL 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 BZX84-B7V5/DG/B4VL meets industry standards.
7.What is the process for return or replacement of BZX84-B7V5/DG/B4VL?
All BZX84-B7V5/DG/B4VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B7V5/DG/B4VL, 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 BZX84-B7V5/DG/B4VL part is unused and in its original packaging.
Return procedure for BZX84-B7V5/DG/B4VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B7V5/DG/B4VL Tags
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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