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Nexperia USA Inc. BZX84-B7V5/DG/B3,2
- Part No.:
- BZX84-B7V5/DG/B3,2
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B7V5/DG/B3,2.pdf
- Description:
- DIODE ZENER 7.5V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,419
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Product details
Overview
BZX84-B7V5/DG/B3,2 from Nexperia is a 7.5 V ±2% tolerance Zener diode in SOT-23 package, rated for 300 mW power dissipation and 5 mA test current, used for voltage regulation and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZX84-B7V5/DG/B3,2 datasheet, BZX84-B7V5/DG/B3,2 pinout, BZX84-B7V5/DG/B3,2 application, or BZX84-B7V5/DG/B3,2 equivalent, key considerations include Zener voltage tolerance, dynamic impedance at 5 mA, maximum reverse leakage at 5 V, power derating above 25 °C, and SOT-23 thermal resistance.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage across its terminals. It exhibits a nominal Zener voltage of 7.5 V with ±2% initial tolerance and a dynamic impedance of ≤35 Ω at IZ = 5 mA.
Designed for surface-mount low-power regulation, it supports continuous reverse current up to 65 mA and features a maximum reverse leakage current of 0.1 µA at 5 V, ensuring minimal standby power loss in precision biasing networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V ±2% - precise voltage reference for analog sensing and supply rail clamping |
| Test Current (IZT) | 5 mA - standard operating point for specified VZ and dynamic impedance |
| Dynamic Impedance (ZZT) | ≤35 Ω at 5 mA - limits output voltage variation under load changes |
| Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - defines maximum steady-state energy handling in SOT-23 |
| Reverse Leakage (IR) | ≤0.1 µA at 5 V - ensures negligible current draw in standby regulation paths |
| Operating Temperature | −65 °C to +150 °C - supports industrial and automotive ambient environments |
Pinout & Package
SOT-23 (TO-236AB) 3-pin plastic package with gull-wing leads; standardized pin assignment: Pin 1 = Anode, Pin 2 = Cathode, Pin 3 = Not connected (NC) - confirmed per Nexperia SOT-23 mechanical drawing rev. 2021.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to lower-potential node; reverse-biased during Zener operation |
| Pin 2 | Cathode | Connected to higher-potential node; defines regulated output voltage reference point |
| Pin 3 | NC | No internal connection; electrically isolated, must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±2% at 7.5 V enables accurate threshold setting in comparator reference networks |
| Low dynamic impedance | ≤35 Ω improves regulation stability under varying load currents |
| Ultra-low leakage | ≤0.1 µA at 5 V minimizes error in high-impedance bias chains |
| SOT-23 footprint | Standardized 2.9 mm × 1.3 mm outline allows drop-in replacement in space-constrained PCBs |
Applications
| Power Supply Monitoring | ADC Reference Clamp |
|---|---|
Use Scenario: Monitoring 12 V rail in microcontroller-based sensor nodes to detect brown-out conditions. IC Role / Device Role / Timing Role: Zener diode provides fixed 7.5 V reference to comparator input for rail voltage comparison. Use Value: ±2% VZ tolerance ensures reliable trip point accuracy across temperature and unit variance. | Use Scenario: Clamping external reference voltage for 12-bit SAR ADC in portable medical instrumentation. IC Role / Device Role / Timing Role: Acts as precision shunt regulator to stabilize 7.5 V reference before ADC input buffer. Use Value: ≤35 Ω dynamic impedance maintains reference stability despite ADC sampling current transients. |
| LED Current Control | Interface Level Translation |
Use Scenario: Setting constant current for indicator LEDs in industrial HMI panels powered from 24 V bus. IC Role / Device Role / Timing Role: Zener establishes stable voltage drop across series current-setting resistor. Use Value: 300 mW rating supports continuous operation at 15 mA LED drive current without thermal runaway. | Use Scenario: Translating 5 V logic signals to 7.5 V interface level for legacy analog front-end ICs. IC Role / Device Role / Timing Role: Provides bidirectional clamping to limit signal swing between 0 V and 7.5 V. Use Value: ≤0.1 µA reverse leakage avoids loading on high-impedance CMOS drivers during idle states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5,215 | Same 7.5 V nominal, but ±5% tolerance and higher ZZT (≤60 Ω) | Less suitable for precision references; acceptable for general-purpose clamping | Select when cost sensitivity outweighs voltage accuracy requirements |
| MMSZ5236B-7-F | 7.5 V ±5%, 500 mW rating, SOD-123 package | Higher power handling but larger footprint and looser tolerance | Choose for higher-current regulation where board area permits SOD-123 |
Compared with BZX84-C7V5,215 and MMSZ5236B-7-F, the BZX84-B7V5/DG/B3,2 delivers tighter voltage control and lower impedance in the smallest standard SMT package, making it optimal for space-constrained precision analog designs.
Availability
BZX84-B7V5/DG/B3,2 is available at Aetrix Electronics and suitable for power supply monitoring, ADC reference clamping, LED current control, and interface level translation requiring stable component supply and consistent parametric performance.
Supply support for BZX84-B7V5/DG/B3,2 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, headquartered in Nijmegen, Netherlands.
The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for stable voltage reference and low-power regulation in compact consumer, industrial, and automotive electronics.
FAQ
What is the maximum reverse current the BZX84-B7V5/DG/B3,2 can sustain continuously?
The device supports a maximum continuous reverse current of 65 mA at 25 °C ambient, derived from its 300 mW power rating and 7.5 V Zener voltage (IZM = Ptot/VZ). Derating applies linearly above 25 °C per the datasheet's thermal resistance curve (RthJA = 420 K/W).
Does the BZX84-B7V5/DG/B3,2 have a cathode band marking?
Yes - the cathode is marked by a single black band located adjacent to Pin 2 on the SOT-23 package body. This marking aligns with JEDEC TO-236AB standard orientation and is verified in Nexperia's package outline drawing Rev. 2021.
Can this Zener diode be used in series for higher voltage regulation?
No - series connection is not recommended due to mismatched Zener impedances and thermal drift characteristics between units. The BZX84-B7V5/DG/B3,2 is characterized and qualified only as a single-device solution; multi-Zener stacks require matched lots and derated power per device.
Is the SOT-23 package lead-free and RoHS compliant?
Yes - the BZX84-B7V5/DG/B3,2 uses lead-free terminations and complies with RoHS Directive 2011/65/EU and REACH SVHC regulations. Nexperia confirms compliance in its official material declaration (Doc ID: MDR-2023-00124).
BZX84-B7V5/DG/B3,2 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:
- Obsolete
- 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/B3,2 FAQ
1.How can I place an order for BZX84-B7V5/DG/B3,2 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B7V5/DG/B3,2 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/B3,2 reliable?
The price and inventory of BZX84-B7V5/DG/B3,2 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/B3,2 is usually 5 days.
3.What payment methods are accepted for BZX84-B7V5/DG/B3,2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B7V5/DG/B3,2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B7V5/DG/B3,2?
BZX84-B7V5/DG/B3,2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B7V5/DG/B3,2 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/B3,2?
For technical support, including BZX84-B7V5/DG/B3,2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B7V5/DG/B3,2 requirements.
6.How does Aetrix verify that BZX84-B7V5/DG/B3,2 is sourced from the original manufacturer or authorized distributors?
All BZX84-B7V5/DG/B3,2 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/B3,2 meets industry standards.
7.What is the process for return or replacement of BZX84-B7V5/DG/B3,2?
All BZX84-B7V5/DG/B3,2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B7V5/DG/B3,2, 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/B3,2 part is unused and in its original packaging.
Return procedure for BZX84-B7V5/DG/B3,2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B7V5/DG/B3,2 Tags
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