BZX84 SOT-23 Voltage Regulator Diode Variants
Nexperia BZX84 variants are SOT-23 voltage regulator diodes used for compact Zener clamps, references, bias regulation, and low-current protection networks.
Nexperia SOT-23 Zener regulator diodes across voltage and tolerance grades
Compare BZX84 variants by Zener voltage, tolerance class, package, qualification, leakage, and power rating.
The BZX84 family from Nexperia is a surface-mount voltage regulator diode series in the SOT-23 / TO-236AB package class. It covers many Zener voltages and tolerance grades, including A, B, and C style variants in common ordering codes. These parts are used for signal clamps, bias references, local rail limiting, and simple shunt regulation in consumer, industrial, and automotive electronics.
Although BZX84 parts share the same family prefix, the voltage code, tolerance letter, package suffix, and qualification marker determine the actual use case. Check nominal Zener voltage at test current, tolerance, dynamic impedance, leakage, temperature coefficient, power rating, thermal resistance, and whether the order code is automotive-qualified. For surge-heavy protection, compare dedicated TVS devices rather than assuming a small Zener diode is sufficient.
Key Features
- Broad Zener voltage range in a standard SOT-23 package
- Tolerance-letter variants support different accuracy classes
- Useful for compact clamp and reference networks
- Automotive-qualified order codes appear in selected variants
- Simple discrete option for low-current voltage limiting
Target Applications
- Signal-line clamps
- Local supply rail limiting
- Bias and reference circuits
- Industrial and consumer control boards
- Automotive electronics where qualified variants are selected
Ordering Variants
Compare 126 BZX84 part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| BZX84-A13/DG,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-A3V0,215 | Max Operating Temp: 150 | Min Operating Temp: -65 | Number of Pins: 3 | Terminal Position: DUAL | Jedec Package Code: TO-236AB | Number of Elements: 1 | - | Nexperia | Active | Compliant | In Stock | |
| BZX84-A3V0/G,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-A4V3/G,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-A4V7/A2,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-A6V2/DG/B3,2 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-A75/DG,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B12/DG,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B15/G,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B18/DG,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B22/DG,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B27/DG/B2,21 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B2V7/G,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B30/DG,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B3V9/DG/B3,2 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B4V7/DG/B3,2 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B56/G,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B5V1/B,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B5V1/B,235 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock | |
| BZX84-B5V1/DG,215 | Package: SOT-23 | Mounting Type: Surface Mount | Max Operating Temp: 150°C | Min Operating Temp: -65°C | SOT-23 | Nexperia | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on BZX84 map to package, grade, and reel options.
[{"code":"A, B, C tolerance letters","meaning":"Indicate different Zener voltage tolerance classes; verify the exact datasheet table."},{"code":"Voltage code","meaning":"Part-number voltage markers such as 3V9, 5V6, 12, or 39 identify nominal Vz."},{"code":"DG or automotive markers","meaning":"Selected order codes may indicate qualification or green package options."},{"code":"215 / 235 suffixes","meaning":"Packing or reel identifiers used in Nexperia ordering codes."}]
How to Choose the Right BZX84 Zener Diodes
Choose voltage at operating current
Zener voltage depends on current; compare the datasheet curve to the real circuit point.
Match tolerance grade
A, B, and C variants can differ in voltage accuracy and are not always interchangeable.
Use TVS for surge energy
Small BZX84 devices are not substitutes for high-pulse-power protection unless ratings prove it.
Technical Specifications
Core parameters for BZX84 product family
Source BZX84 with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 126 ordering variants from Nexperia. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the BZX84 product family.