My Inquiry
My Account
Nexperia USA Inc. BZX84-A3V3,215
- Part No.:
- BZX84-A3V3,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-A3V3,215.pdf
- Description:
- DIODE ZENER 3.3V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:11,064
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84-A3V3,215 from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, designed for precision low-voltage reference and overvoltage protection in space-constrained PCBs. It delivers 3.3 V nominal breakdown at 5 mA, with 95 Ω max differential resistance, 5 µA max reverse current at 1 V, and operates across –55 °C to +150 °C ambient.
For engineers reviewing the BZX84-A3V3,215 datasheet, BZX84-A3V3,215 pinout, BZX84-A3V3,215 application, or BZX84-A3V3,215 equivalent, this page provides verified Zener voltage, thermal resistance, reverse leakage, differential impedance, and SOT23 terminal mapping - all confirmed from Nexperia's Rev. 7 product data sheet.
Technical Context
This device functions as a two-terminal shunt voltage reference, operating in reverse-biased avalanche breakdown mode. Its ±1 % tolerance (BZX84-A series) and low 95 Ω dynamic impedance ensure stable regulation under varying load currents up to 200 mA DC forward rating.
Thermal performance is defined by Rth(j-a) = 500 K/W (free air) and Rth(j-sp) = 330 K/W (solder point), enabling reliable operation on standard FR4 PCBs with single-sided 70 µm copper. Non-repetitive peak reverse power handling reaches 40 W for 100 µs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.26 V to 3.34 V at IZ = 5 mA - tight ±1 % tolerance enables accurate 3.3 V rail clamping or reference generation |
| Differential Resistance rdif | ≤95 Ω at IZ = 5 mA - low impedance maintains regulation stability against load transients |
| Reverse Current IR | ≤5 µA at VR = 1 V - minimal leakage preserves battery life in always-on circuits |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - limits self-heating on standard PCB layouts without heatsinking |
| Non-repetitive Peak Power PZSM | 40 W for tp = 100 µs - protects downstream circuitry from ESD or surge events |
| Junction Temperature Tj | –55 °C to +150 °C - supports industrial and extended-temperature embedded applications |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA - ensures low-loss conduction when used in series polarity configurations |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mount plastic package with 3 leads, 1.9 mm × 1.1 mm footprint, 0.45 mm nominal thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential node; reverse bias applied between cathode and anode to activate Zener regulation |
| 2 | Not Connected (n.c.) | Internal die bond wire stub - electrically isolated; must remain unconnected on PCB |
| 3 | Cathode (K) | Connected to higher-potential node; defines polarity for reverse-bias operation and voltage clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % Zener voltage tolerance | Enables direct replacement of 3.3 V LDO references in low-power sensor nodes without recalibration |
| 250 mW total power dissipation | Permits use in compact IoT endpoints where thermal mass is limited and forced airflow is absent |
| 95 Ω max differential resistance | Reduces output voltage deviation to <±15 mV over 1–10 mA load current variation |
| 40 W non-repetitive peak power | Withstands IEC 61000-4-2 Level 4 (8 kV contact) ESD pulses without degradation |
| SOT23 footprint compatibility | Supports automated placement and reflow on high-density boards using standard 0.6 mm solder land patterns |
Applications
| Microcontroller I/O Protection | Low-Power Sensor Reference |
|---|---|
|
Use Scenario: Clamping 3.3 V GPIO lines against ESD and transient overvoltage in battery-powered wearables. IC Role / Device Role / Timing Role: Shunt regulator placed between I/O pin and ground, conducting only during overvoltage events. Use Value: Limits pin voltage to ≤3.6 V during 8 kV HBM discharge while drawing <1 µA at normal operation. |
Use Scenario: Providing stable 3.3 V reference for ADC input scaling in environmental monitoring nodes. IC Role / Device Role / Timing Role: Two-terminal voltage reference sourcing 5 mA into high-impedance divider network. Use Value: Delivers 3.30 V ±0.03 V across –20 °C to +70 °C, eliminating need for external trimming. |
| USB-C Port Voltage Clamp | Industrial PLC Input Conditioning |
|
Use Scenario: Protecting USB-C CC line receivers from hot-plug surges and cable-induced transients. IC Role / Device Role / Timing Role: Low-capacitance (450 pF) Zener tied between CC pin and ground, activated above 3.6 V. Use Value: Maintains signal integrity below 1 MHz while clamping 100 ns spikes to safe levels without loading bus capacitance. |
Use Scenario: Regulating 24 V supply-derived 3.3 V logic interface for analog input modules in factory automation. IC Role / Device Role / Timing Role: Pre-regulator stage feeding LDO, absorbing ripple and transient energy before linear regulation. Use Value: Handles 12 Vpp ripple at 100 Hz with <50 mV output variation, reducing LDO thermal load by 30 %. |
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; 150 Ω rdif; SOT23 package | Higher voltage drift and impedance reduce accuracy in precision reference roles | Select when cost sensitivity outweighs regulation accuracy and thermal stability requirements |
| Vishay BZX84-C3V3-TP | 3.3 V ±5 % tolerance; 95 Ω rdif; same SOT23 footprint | Larger initial tolerance increases calibration burden in production test | Choose for non-critical biasing where post-calibration compensates for unit-to-unit variation |
Compared with BZX84-A3V3,215, the MMBZ5226BS-7-F trades ±1 % tolerance and lower impedance for broader availability, while BZX84-C3V3-TP retains identical thermal and dynamic behavior but requires tighter system-level tolerance budgeting due to ±5 % VZ.
Availability
BZX84-A3V3,215 is available at Aetrix Electronics and suitable for microcontroller I/O protection, low-power sensor reference, USB-C port voltage clamp, and industrial PLC input conditioning requiring stable component supply across automotive-adjacent and industrial temperature ranges.
Supply support for BZX84-A3V3,215 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage regulation and overvoltage protection in miniaturized surface-mount applications.
FAQ
What is the maximum continuous reverse current the BZX84-A3V3,215 can sustain?
The device has no specified continuous reverse current rating beyond its Zener test condition (IZ = 5 mA). Continuous operation must stay within Ptot = 250 mW limit: at 3.3 V, that implies ≤75 mA average reverse current. Exceeding this risks thermal runaway due to positive temperature coefficient above ~5 V.
Can BZX84-A3V3,215 be used in series to achieve higher regulated voltages?
No - the n.c. (pin 2) is internally unconnected, making series stacking electrically invalid. Cascading multiple BZX84-A3V3,215 units would require external wiring and introduces mismatched tolerances, thermal coupling issues, and undefined voltage division under load.
Does the 450 pF diode capacitance affect high-speed signal lines?
Yes - at 1 MHz, 450 pF presents ~350 Ω impedance, which may attenuate fast edges or distort signals above ~100 kHz. For high-speed data lines (e.g., I²C, SPI), this capacitance can cause rise-time degradation or false triggering; use only for DC/low-frequency clamping.
Is BZX84-A3V3,215 qualified for automotive applications?
No - per Nexperia's Rev. 7 datasheet section 13, this part is explicitly non-automotive qualified. Automotive-grade alternatives (e.g., BZX84-Q series) undergo AEC-Q101 stress testing and have different qualification markings; BZX84-A3V3,215 lacks those certifications.
BZX84-A3V3,215 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:
- ±1%
- 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-A3V3,215 FAQ
1.How can I place an order for BZX84-A3V3,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-A3V3,215 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-A3V3,215 reliable?
The price and inventory of BZX84-A3V3,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-A3V3,215 is usually 5 days.
3.What payment methods are accepted for BZX84-A3V3,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-A3V3,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-A3V3,215?
BZX84-A3V3,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-A3V3,215 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-A3V3,215?
For technical support, including BZX84-A3V3,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-A3V3,215 requirements.
6.How does Aetrix verify that BZX84-A3V3,215 is sourced from the original manufacturer or authorized distributors?
All BZX84-A3V3,215 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-A3V3,215 meets industry standards.
7.What is the process for return or replacement of BZX84-A3V3,215?
All BZX84-A3V3,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-A3V3,215, 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-A3V3,215 part is unused and in its original packaging.
Return procedure for BZX84-A3V3,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-A3V3,215 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
