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Nexperia USA Inc. BZX84-B7V5,235
- Part No.:
- BZX84-B7V5,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B7V5,235.pdf
- Description:
- DIODE ZENER 7.5V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,725
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Product details
Overview
BZX84-B7V5,235 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 7.5 V nominal breakdown voltage at 5 mA, 250 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves as a precision reference or overvoltage clamp in low-power analog supply rails, sensor biasing circuits, and microcontroller reset supervision.
For engineers reviewing the BZX84-B7V5,235 datasheet, BZX84-B7V5,235 pinout, BZX84-B7V5,235 application, or BZX84-B7V5,235 equivalent, this page delivers verified Zener voltage, differential resistance, temperature coefficient, thermal resistance, and cathode/anode terminal mapping - all confirmed from Nexperia's Rev. 7 product data sheet.
Technical Context
This device operates in reverse-bias breakdown mode with a nominal Zener voltage of 7.5 V at IZ = 5 mA, exhibiting a typical temperature coefficient of +2.5 mV/K and maximum differential resistance of 80 Ω. Its junction-to-ambient thermal resistance is 500 K/W on standard FR4 PCB, limiting continuous power handling under ambient conditions.
The SOT23 package features three terminals: anode (Pin 1), no-connect (Pin 2), and cathode (Pin 3), where only Pins 1 and 3 are electrically active. Reverse current remains below 1 μA at VR = 5.25 V, enabling stable regulation in low-leakage signal conditioning paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.35 V to 7.65 V at IZ = 5 mA - defines tight regulation window for 7.5 V reference applications |
| Differential Resistance rdif | ≤80 Ω - ensures minimal output voltage shift under load current variation |
| Temperature Coefficient SZ | +2.5 mV/K - enables predictable drift compensation in temperature-stable references |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power on standard FR4 PCB |
| Non-repetitive Peak Power PZSM | 40 W for tp = 100 μs - supports transient overvoltage clamping without failure |
| Reverse Current IR | ≤1 μA at VR = 5.25 V - guarantees low leakage in high-impedance bias networks |
| Junction Temperature Tj | −55 °C to +150 °C - validates operation across industrial temperature ranges |
Pinout & Package
SOT23 (TO-236AB) surface-mount plastic package with 3 leads; dimensions per Figure 11: 2.9 mm × 1.3 mm × 1.0 mm, 0.95 mm lead pitch, and gull-wing terminations compatible with reflow soldering per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward-biased terminal; connects to lower-potential node in Zener regulation configuration |
| 2 | No Connect | Internally unconnected; must remain floating - no PCB trace or component attachment |
| 3 | Cathode | Reverse-biased terminal; connects to higher-potential node and provides regulated output reference |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than ±5 % variants (BZX84-C) without premium ±1 % (BZX84-A) cost |
| 250 mW power rating | Supports continuous regulation in space-constrained, low-power designs such as portable sensors and wearables |
| 80 Ω max differential resistance | Maintains <15 mV output deviation across 1 mA load change - critical for ADC reference stability |
| 40 W surge capability | Clamps ESD transients (IEC 61000-4-2 Level 4) without degradation when used with series current-limiting resistor |
| 150 °C max junction temperature | Permits reliable operation in sealed enclosures or near heat-generating components |
Applications
| Power Supply Regulation | Sensor Biasing |
|---|---|
|
Use Scenario: Stabilizing 7.5 V rail for op-amp biasing in battery-powered instrumentation. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference, sinking excess current to maintain fixed output voltage. Use Value: Delivers 7.5 V ±2.5 % over −40 °C to +85 °C with <100 ppm/°C drift, eliminating need for active regulators. |
Use Scenario: Providing precise bias voltage to MEMS pressure sensor bridge excitation. IC Role / Device Role / Timing Role: Passive voltage reference establishing known excitation potential across Wheatstone bridge arms. Use Value: Enables <0.1 % full-scale error contribution from reference drift, meeting industrial sensor accuracy requirements. |
| Microcontroller Reset Circuit | Overvoltage Protection Clamp |
|
Use Scenario: Generating clean reset signal for ARM Cortex-M0+ MCU during brown-out events. IC Role / Device Role / Timing Role: Zener-based threshold detector triggering RC delay network into reset pin. Use Value: Activates reset at 7.5 V ±2 % with sub-10 μs response to overvoltage, preventing firmware corruption. |
Use Scenario: Clamping 12 V supply spikes induced by relay coil flyback in automotive body control modules. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing 40 W surges for 100 μs without failure. Use Value: Limits transient overshoot to <8.5 V, protecting downstream 7 V-rated logic ICs from latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5233BS-7-F | 7.5 V ±5 %, 350 mW, SOT-23, 100 Ω rdif | Higher power but looser tolerance and higher impedance - less stable under dynamic loads | Select when cost sensitivity outweighs regulation precision and thermal margin is available |
| Vishay BZX84-C7V5-E3-08 | 7.5 V ±5 %, 250 mW, SOT-23, 150 Ω rdif, no Pin 2 NC | Wider tolerance and higher impedance reduce reference accuracy; single-anode/cathode pinout simplifies layout | Choose for non-critical biasing where ±5 % is acceptable and board space is constrained |
Compared with BZX84-B7V5,235, the MMBZ5233BS-7-F offers higher surge resilience but sacrifices regulation stability, while the BZX84-C7V5-E3-08 trades precision for cost and layout simplicity - making the BZX84-B7V5,235 optimal for applications demanding ±2 % accuracy and low-impedance reference behavior in compact SMT footprints.
Availability
BZX84-B7V5,235 is available at Aetrix Electronics and suitable for power supply regulation, sensor biasing, microcontroller reset circuits, and overvoltage protection requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for BZX84-B7V5,235 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, with manufacturing in Asia and Europe.
The BZX84 series belongs to Nexperia's precision Zener diode portfolio, engineered specifically for low-power voltage reference and clamping in space-constrained, cost-sensitive applications across industrial and consumer markets.
FAQ
What is the maximum continuous forward current for BZX84-B7V5,235?
The device is not intended for continuous forward conduction; its absolute maximum forward current is 200 mA per limiting values table, but forward operation exceeds design intent. In normal Zener regulation, it operates in reverse breakdown - forward voltage is specified only for characterization (VF ≤ 0.9 V at IF = 10 mA).
Can BZX84-B7V5,235 replace BZX84-A7V5 in a precision reference circuit?
No - the BZX84-A7V5 has ±1 % tolerance (7.42–7.58 V), while BZX84-B7V5,235 has ±2 % (7.35–7.65 V). The wider tolerance introduces up to 200 mV additional uncertainty in the reference voltage, degrading accuracy in high-precision ADC or DAC applications.
How does the no-connect pin (Pin 2) affect PCB layout?
Pin 2 must remain unconnected on the PCB - no copper trace, pad, or via should contact it. Its presence accommodates mechanical alignment in the SOT23 mold; routing to it risks shorting internal die structures or compromising thermal performance due to unintended heat paths.
Is BZX84-B7V5,235 qualified for automotive use?
No - per Nexperia's Rev. 7 datasheet revision history, the BZX84 series was changed to non-automotive qualification in 2023. Automotive-grade alternatives (e.g., BZX84-Q series) require separate part numbers and undergo AEC-Q101 stress testing; this variant lacks those qualifications.
BZX84-B7V5,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX84-B7V5,235 FAQ
1.How can I place an order for BZX84-B7V5,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B7V5,235 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-B7V5,235 reliable?
The price and inventory of BZX84-B7V5,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B7V5,235 is usually 5 days.
3.What payment methods are accepted for BZX84-B7V5,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B7V5,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B7V5,235?
BZX84-B7V5,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B7V5,235 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-B7V5,235?
For technical support, including BZX84-B7V5,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B7V5,235 requirements.
6.How does Aetrix verify that BZX84-B7V5,235 is sourced from the original manufacturer or authorized distributors?
All BZX84-B7V5,235 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-B7V5,235 meets industry standards.
7.What is the process for return or replacement of BZX84-B7V5,235?
All BZX84-B7V5,235 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B7V5,235, 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-B7V5,235 part is unused and in its original packaging.
Return procedure for BZX84-B7V5,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B7V5,235 Tags
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MMBZ5240B-7-F
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MMSZ5231B-7-F
Diodes Incorporated
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onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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