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Nexperia USA Inc. BZX84-C3V0,235
- Part No.:
- BZX84-C3V0,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C3V0,235.pdf
- Description:
- DIODE ZENER 3V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,873
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Product details
Overview
BZX84-C3V0,235 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, designed for low-power precision voltage reference and overvoltage protection in signal conditioning and power rail stabilization circuits. It delivers a nominal 3.0 V breakdown voltage at 5 mA, with 95 Ω max differential resistance, 10 µA max reverse current at 1 V, and −3.5 to 0.0 mV/K temperature coefficient.
For engineers reviewing the BZX84-C3V0,235 datasheet, BZX84-C3V0,235 pinout, BZX84-C3V0,235 application, or BZX84-C3V0,235 equivalent, this device serves as a compact, surface-mount solution for voltage clamping, ESD protection interface biasing, and analog reference generation where tight thermal drift and low leakage are required.
Technical Context
This Zener diode operates in reverse-biased avalanche mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its design centers on predictable breakdown behavior at IZ = 5 mA, with specified thermal coefficient and differential resistance enabling predictable regulation in low-current (<200 mA) applications.
The device features non-repetitive peak reverse power dissipation up to 40 W for 100 µs pulses and total DC power dissipation limited to 250 mW at Tamb ≤ 25 °C on FR4 PCB. Junction-to-ambient thermal resistance is 500 K/W, confirming suitability for thermally constrained PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 2.80 V to 3.20 V at IZ = 5 mA - defines usable regulation window for 3.0 V nominal reference |
| Differential Resistance rdif | ≤95 Ω - determines output impedance and load regulation error under current variation |
| Reverse Current IR | ≤10 µA at VR = 1 V - ensures minimal standby leakage in bias networks |
| Temperature Coefficient SZ | −3.5 to 0.0 mV/K - quantifies voltage drift per degree Celsius, critical for temperature-stable references |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Power | 40 W for tp = 100 µs - supports transient overvoltage suppression without failure |
| Junction Temperature Tj | −55 °C to +150 °C - confirms operation across industrial ambient ranges |
Pinout & Package
Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with 1.9 mm × 1.3 mm footprint and 1.1 mm height; optimized for reflow and wave soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connected to lower-potential node in Zener configuration |
| 2 | Not Connected (n.c.) | Internal die pad with no electrical connection; must remain unconnected on PCB |
| 3 | Cathode (K) | Reverse-bias terminal; connected to higher-potential node to enable Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % voltage tolerance | Enables cost-effective selection for non-critical regulation where tighter tolerances are unnecessary |
| 250 mW total power rating | Supports continuous operation in low-power sensor interfaces and microcontroller I/O protection |
| 40 W non-repetitive surge capability | Provides robustness against ESD events and short-duration transients without derating |
| Low 10 µA reverse leakage at 1 V | Minimizes quiescent current draw in battery-powered voltage monitor circuits |
| SOT23 footprint compatibility | Ensures drop-in replacement in legacy designs using industry-standard 3-pin SMD layout |
Applications
| Power Supply Rail Clamp | Microcontroller I/O Protection |
|---|---|
Use Scenario: Clamping 3.3 V logic supply rail against overshoot during hot-swap or load dump. IC Role / Device Role / Timing Role: Zener shunt regulator acting as passive voltage limiter between VCC and GND. Use Value: Prevents >3.2 V excursions that could damage downstream 3.3 V logic ICs, leveraging 2.8–3.2 V regulation band and 40 W surge rating. |
Use Scenario: Protecting GPIO pins of an ARM Cortex-M0+ MCU from induced ESD or bus coupling. IC Role / Device Role / Timing Role: Bidirectional clamp formed with series resistor and BZX84-C3V0,235 cathode tied to 3.3 V rail. Use Value: Limits pin voltage to ≤3.2 V during positive transients and ≥−0.7 V during negative transients, using forward VF ≤0.9 V and Zener action. |
| Analog Sensor Reference | Current Source Bias Network |
Use Scenario: Providing stable 3.0 V reference for a 12-bit ADC measuring thermistor voltage divider output. IC Role / Device Role / Timing Role: Precision voltage reference node supplying bias to resistive divider and ADC REF+ input. Use Value: Delivers <±10 mV drift over −40 to +85 °C due to −3.5 to 0.0 mV/K coefficient, enabling <0.1% reference error. |
Use Scenario: Setting bias current for a discrete NPN current mirror used in op-amp input stage. IC Role / Device Role / Timing Role: Zener-based current source where cathode connects to VCC and anode feeds base resistor network. Use Value: Generates ~1 mA bias current via 2.2 kΩ resistor, stabilized by 95 Ω rdif to hold current variation <2% across temperature. |
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 | 3.0 V ±5 %, 200 mW, SOT23, 100 Ω rdif, 10 µA IR @ 1 V | Higher differential resistance reduces regulation accuracy under dynamic load | Select when sourcing from ON Semi's qualified automotive-grade line is required |
| Vishay BZX84-C3V0-TP | 3.0 V ±5 %, 300 mW, SOT23, 90 Ω rdif, 5 µA IR @ 1 V, −3.0 to +0.5 mV/K | Lower leakage and tighter tempco improve reference stability in precision analog stages | Prefer for high-accuracy sensor front-ends where sub-5 µA leakage matters |
Compared with BZX84-C3V0,235, the Vishay alternative offers lower leakage and improved temperature coefficient for analog reference use, while the ON Semi part trades regulation precision for broader qualification scope-making each suitable for distinct reliability or accuracy priorities.
Availability
BZX84-C3V0,235 is available at Aetrix Electronics and suitable for power supply rail clamping, microcontroller I/O protection, analog sensor reference, and current source bias networks requiring stable component supply and consistent parametric performance across production batches.
Supply support for BZX84-C3V0,235 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 headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability discrete and logic devices for industrial, consumer, and communications markets.
The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered for cost-sensitive, space-constrained applications demanding repeatable breakdown voltage, low leakage, and robust surge immunity in SOT23 packaging.
FAQ
What is the maximum continuous forward current for BZX84-C3V0,235?
The device is not rated for continuous forward conduction; its primary function is reverse-bias Zener operation. Absolute maximum forward current is 200 mA per limiting values table, but sustained forward bias exceeds design intent and risks thermal runaway. Forward voltage is specified only for test conditions (≤0.9 V at 10 mA pulse), not steady-state operation.
Can BZX84-C3V0,235 be used in place of a 3.3 V Zener diode?
No-it is specified for 3.0 V nominal breakdown (2.8–3.2 V range) and will not regulate reliably at 3.3 V. Attempting to use it as a 3.3 V clamp results in insufficient reverse bias, leading to high leakage and poor regulation. For 3.3 V applications, BZX84-C3V3 (3.1–3.5 V) is the correct variant.
How does the "235" suffix in BZX84-C3V0,235 affect specifications?
The "235" denotes the specific ordering code per Nexperia's packaging and reel configuration: it indicates tape-and-reel packaging in 3,000-unit reels with standard orientation and moisture sensitivity level (MSL) 1. Electrical and thermal specifications are identical to all BZX84-C3V0 units regardless of suffix; only logistics and packaging differ.
Is BZX84-C3V0,235 suitable for automotive applications?
No-this variant is non-automotive qualified. The datasheet explicitly states that BZX84_SER Rev. 7 products are not qualified to AEC-Q101 or automotive standards. For automotive use, Nexperia offers separate -Q qualified variants (e.g., BZX84-C3V0-Q), which undergo extended temperature cycling, humidity testing, and failure analysis not performed on the 235 version.
BZX84-C3V0,235 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):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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-C3V0,235 FAQ
1.How can I place an order for BZX84-C3V0,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C3V0,235 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-C3V0,235 reliable?
The price and inventory of BZX84-C3V0,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C3V0,235 is usually 5 days.
3.What payment methods are accepted for BZX84-C3V0,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C3V0,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C3V0,235?
BZX84-C3V0,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C3V0,235 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-C3V0,235?
For technical support, including BZX84-C3V0,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C3V0,235 requirements.
6.How does Aetrix verify that BZX84-C3V0,235 is sourced from the original manufacturer or authorized distributors?
All BZX84-C3V0,235 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-C3V0,235 meets industry standards.
7.What is the process for return or replacement of BZX84-C3V0,235?
All BZX84-C3V0,235 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C3V0,235, 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-C3V0,235 part is unused and in its original packaging.
Return procedure for BZX84-C3V0,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C3V0,235 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
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SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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