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Nexperia USA Inc. BZX84-B3V3,215
- Part No.:
- BZX84-B3V3,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-B3V3,215.pdf
- Description:
- DIODE ZENER 3.3V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:51,090
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Product details
Overview
BZX84-B3V3,215 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, designed for precision low-power voltage reference and clamping in biasing, protection, and regulation circuits. It delivers a nominal 3.3 V breakdown voltage at 5 mA, with 95 Ω max differential resistance, 5 µA reverse current at 1 V, and operates across –55 °C to +150 °C ambient range - used in power supply feedback loops and analog sensor signal conditioning.
For engineers reviewing the BZX84-B3V3,215 datasheet, BZX84-B3V3,215 pinout, BZX84-B3V3,215 application, or BZX84-B3V3,215 equivalent, key selection criteria include Zener voltage tolerance (±2 %), thermal resistance (330 K/W junction-to-solder-point), non-repetitive surge capability (40 W), forward voltage (≤0.9 V @ 10 mA), and SOT23 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage under varying load and temperature conditions. Its 3.3 V nominal Zener voltage is specified at 5 mA test current, with temperature coefficient of –3.5 mV/K and differential resistance ≤95 Ω, enabling predictable regulation in low-current analog references.
Designed for surface-mount assembly on FR4 PCBs with single-sided 70 µm copper, it supports reflow and wave soldering per standardized SOT23 footprints. Thermal performance is characterized by Rth(j-a) = 500 K/W (free air) and Rth(j-sp) = 330 K/W (to cathode solder point), defining safe operating limits under pulsed and continuous dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.23 V to 3.37 V @ IZ = 5 mA - defines tight regulation window for 3.3 V rail referencing |
| Differential Resistance (rdif) | ≤95 Ω - ensures minimal output voltage shift under load current variation |
| Reverse Current (IR) | ≤5 µA @ VR = 1 V - guarantees low leakage in standby or high-impedance bias networks |
| Total Power Dissipation (Ptot) | 250 mW @ Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard PCB |
| Non-repetitive Peak Power (PZSM) | 40 W @ tp = 100 µs - enables transient overvoltage clamping without failure |
| Forward Voltage (VF) | ≤0.9 V @ IF = 10 mA - supports use as low-drop rectifier or ESD clamp in forward conduction |
| Junction Temperature (Tj) | –55 °C to +150 °C - validates operation in industrial and automotive-adjacent environments |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package: 3-terminal, 1.3 mm × 2.9 mm body, 0.95 mm height, gull-wing leads compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node in reverse-bias configuration; carries forward current when used as rectifier |
| 2 | Not Connected (n.c.) | Internal die pad with no electrical connection - must remain unconnected on PCB to avoid parasitic coupling |
| 3 | Cathode (K) | Connected to higher-potential node in reverse-bias; primary heat path to PCB via solder point (Rth(j-sp) = 330 K/W) |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than ±5 % variants (BZX84-C3V3), reducing calibration overhead in precision references |
| Low differential resistance (≤95 Ω) | Minimizes voltage deviation under ±1 mA load change - critical for stable feedback in LDOs and op-amp references |
| Non-repetitive 40 W surge rating | Clamps ESD transients (IEC 61000-4-2 Level 4) without degradation when placed at I/O interface points |
| SOT23 footprint compatibility | Supports automated placement and reflow on high-density boards; matches industry-standard land pattern (0.6 mm pad width) |
| 150 °C maximum junction temperature | Permits operation in sealed enclosures or near heat sources without derating below 250 mW at ambient ≤25 °C |
Applications
| Power Supply Feedback Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulating output of adjustable switching or linear regulator via feedback divider network. IC Role / Device Role / Timing Role: Provides stable 3.3 V reference voltage to error amplifier input, setting output accuracy. Use Value: ±2 % VZ tolerance directly limits overall output voltage error budget; low rdif prevents loop instability under dynamic load. |
Use Scenario: Protecting microcontroller GPIO or ADC input from transient overvoltage events. IC Role / Device Role / Timing Role: Shunts excess energy to ground when input exceeds 3.3 V + VF, limiting peak voltage to <4.2 V. Use Value: 40 W non-repetitive surge rating absorbs 100 µs transients without parametric shift; SOT23 size enables placement adjacent to protected pin. |
| Temperature-Stable Bias Network | Low-Power Sensor Excitation |
Use Scenario: Generating fixed bias voltage for JFET or bipolar transistor amplifiers in instrumentation front-ends. IC Role / Device Role / Timing Role: Supplies constant current source reference using series resistor + Zener, compensating for supply drift. Use Value: –3.5 mV/K temperature coefficient allows predictable tracking against silicon-based devices; low IR ensures minimal quiescent current draw. |
Use Scenario: Providing excitation voltage to resistive sensors (e.g., RTDs, thermistors) in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Delivers regulated 3.3 V excitation independent of battery voltage decay between 3.6 V and 4.2 V. Use Value: 250 mW Ptot supports up to 75 mA total current (including sensor + divider), enabling direct drive of 47 Ω loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5226BS-7-F | 3.3 V ±5 % tolerance, 100 Ω rdif, 200 mW Ptot | Looser voltage spec and higher impedance reduce regulation accuracy in precision feedback paths | Select when cost sensitivity outweighs ±2 % tolerance requirement and board space permits larger SOT23 variant |
| Vishay BZX84-C3V3-TP | 3.3 V ±5 % tolerance, 95 Ω rdif, 300 mW Ptot | Higher power rating but wider tolerance increases calibration burden in closed-loop systems | Prefer for high-surge environments where 300 mW margin offsets ±5 % VZ uncertainty |
Compared with BZX84-B3V3,215, MMBZ5226BS-7-F trades voltage precision for broader availability, while BZX84-C3V3-TP sacrifices tolerance control for enhanced surge resilience - making the BZX84-B3V3,215 optimal for designs requiring both tight regulation and proven thermal reliability in compact SOT23 layout.
Availability
BZX84-B3V3,215 is available at Aetrix Electronics and suitable for power supply feedback references, overvoltage protection clamps, and low-power sensor excitation circuits requiring stable component supply and full traceability.
Supply support for BZX84-B3V3,215 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 essential semiconductors for automotive, industrial, and consumer applications.
The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage regulation and clamping in space-constrained, thermally demanding PCB designs.
FAQ
What is the maximum continuous reverse current this diode can sustain at 3.3 V?
The BZX84-B3V3,215 is not rated for continuous reverse conduction at its Zener voltage. Its specified test condition is IZ = 5 mA for VZ measurement. Continuous operation must stay within Ptot = 250 mW limit, meaning max sustainable reverse current is ~75 mA at 3.3 V - but practical design uses 5–20 mA to ensure stability and longevity.
Can this device be used in forward-biased configuration as a regular diode?
Yes - the BZX84-B3V3,215 exhibits typical silicon diode forward characteristics: VF ≤ 0.9 V at 10 mA, with 200 mA absolute maximum forward current. It is routinely used in dual-role applications such as bidirectional ESD protection (forward clamp + reverse Zener clamp), though its primary design intent remains reverse-bias regulation.
How does the "215" suffix in the part number affect specifications?
The "215" suffix denotes the specific tape-and-reel packaging format per JEDEC standard: 3000 units per reel, 8 mm tape width, 4 mm pocket pitch. It does not alter electrical or thermal specifications - all BZX84-B3V3 variants share identical Zener voltage, tolerance, rdif, and power ratings regardless of packaging suffix.
Is this component qualified for automotive applications?
No - the BZX84-B3V3,215 is explicitly marked as non-automotive qualified in Nexperia's revision history (Rev. 7, Jan 2023). It lacks AEC-Q101 qualification and automotive-grade screening. For automotive use, Nexperia offers the BZX84-Q series (e.g., BZX84-Q3V3,215), which undergoes extended temperature cycling, HTOL, and ESD testing per automotive requirements.
BZX84-B3V3,215 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):
- 3.3 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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-B3V3,215 FAQ
1.How can I place an order for BZX84-B3V3,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-B3V3,215 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-B3V3,215 reliable?
The price and inventory of BZX84-B3V3,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B3V3,215 is usually 5 days.
3.What payment methods are accepted for BZX84-B3V3,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B3V3,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-B3V3,215?
BZX84-B3V3,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-B3V3,215 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-B3V3,215?
For technical support, including BZX84-B3V3,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B3V3,215 requirements.
6.How does Aetrix verify that BZX84-B3V3,215 is sourced from the original manufacturer or authorized distributors?
All BZX84-B3V3,215 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-B3V3,215 meets industry standards.
7.What is the process for return or replacement of BZX84-B3V3,215?
All BZX84-B3V3,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B3V3,215, 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-B3V3,215 part is unused and in its original packaging.
Return procedure for BZX84-B3V3,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-B3V3,215 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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