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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. BZX84-C4V7,215

Name: BZX84-C4V7,215
Brand: Nexperia USA Inc.
SKU: BZX84-C4V7,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-C4V7,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BZX84-C4V7,215.pdf

Description:: DIODE ZENER 4.7V 250MW TO236AB

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Product details

Overview

BZX84-C4V7,215 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 space-constrained PCBs. It delivers 4.4 V to 5.0 V nominal Zener voltage at 5 mA test current, with 3 Ω typical differential resistance, 3 µA max reverse leakage at 3.5 V, and −3.5 mV/K to +0.2 mV/K temperature coefficient - enabling stable biasing in sensor signal conditioning circuits.

For engineers reviewing the BZX84-C4V7,215 datasheet, BZX84-C4V7,215 pinout, BZX84-C4V7,215 application, or BZX84-C4V7,215 equivalent, this page provides verified Zener voltage range, thermal resistance (R_th(j-a) = 500 K/W), non-repetitive surge capability (40 W @ 100 µs), cathode/anode terminal mapping, and direct-fit alternatives for cost-sensitive or footprint-constrained designs.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its 3 Ω typical dynamic impedance ensures minimal output voltage variation with current changes up to 200 mA forward/5 mA Zener test current.

The device uses silicon planar epitaxial construction with an anode (Pin 1), unconnected (Pin 2), and cathode (Pin 3) configuration - optimized for surface-mount reflow soldering on FR4 PCBs with single-sided 70 µm copper. Junction-to-ambient thermal resistance is 500 K/W in free air, limiting continuous power dissipation to 250 mW at T_amb ≤ 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	4.4 V to 5.0 V at I_Z = 5 mA - defines usable regulation window for 3.3 V or 5 V rail clamping
Differential Resistance (r_diff)	500 Ω max at I_Z = 1 mA; 80 Ω max at I_Z = 5 mA - determines output voltage stability under load transients
Reverse Leakage (I_R)	3 µA max at V_R = 3.5 V - ensures low quiescent current in standby voltage monitoring circuits
Temperature Coefficient (S_Z)	−3.5 mV/K to +0.2 mV/K at I_Z = 5 mA - enables predictable drift compensation in industrial temperature ranges (−55 °C to +150 °C)
Non-repetitive Peak Power (P_ZSM)	40 W for t_p = 100 µs - supports transient overvoltage suppression in ESD-coupled interfaces
Total Power Dissipation (P_tot)	250 mW at T_amb ≤ 25 °C on standard FR4 PCB - sets maximum continuous DC power handling without heatsinking
Junction Temperature (T_j)	−55 °C to +150 °C - qualifies use in extended-temperature industrial and automotive-adjacent environments

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package: 3-lead, 1.3 mm × 2.9 mm × 1.1 mm body, 0.95 mm lead pitch, tin-plated terminations compatible with IPC-J-STD-020 reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode	Connected to lower-potential node in reverse-bias configuration; carries forward current during conduction
2	Not Connected	Internally isolated; no electrical function - must remain unconnected on PCB layout
3	Cathode	Connected to higher-potential node; serves as voltage reference output point in Zener regulation

Key Features

Feature	Design Value
±5 % Zener voltage tolerance	Enables cost-effective voltage clamping where tight regulation is not required, e.g., input protection for microcontroller GPIOs
250 mW total power dissipation	Supports continuous operation in low-current analog front-ends without derating below 70 °C ambient
40 W non-repetitive peak power	Withstands IEC 61000-4-2 Level 4 ESD events (8 kV contact / 15 kV air) when used with series current-limiting resistor
3 Ω typical differential resistance	Minimizes output voltage shift under 1 mA load variation - critical for ADC reference buffering
−55 °C to +150 °C operating range	Validates use in under-hood automotive modules or industrial motor control enclosures without thermal derating

Applications

Overvoltage Protection for USB Peripherals

Reference Voltage for Low-Power ADCs

Use Scenario: Clamps 5 V USB VBUS line against surges from hot-plug insertion or shared power rail coupling.

IC Role / Device Role / Timing Role: Zener diode placed between VBUS and GND with 10 Ω series resistor; conducts above 5.0 V to shunt excess energy.

Use Value: Limits transient voltage to ≤5.5 V for 100 µs, preventing damage to USB PHY ICs rated for 5.5 V absolute maximum.

Use Scenario: Provides stable 4.7 V reference for 12-bit SAR ADC in battery-powered environmental sensor node.

IC Role / Device Role / Timing Role: Reverse-biased Zener supplies reference to ADC REF+ pin; biased at 2 mA via 2.2 kΩ resistor from 3.3 V LDO.

Use Value: Delivers <±10 mV drift over −20 °C to +70 °C due to low r_diff and compensated S_Z, enabling ±0.1 % measurement accuracy.

GPIO ESD Clamp in MCU-Based Controllers

Power-Rail Monitoring in Industrial PLC Inputs

Use Scenario: Protects 3.3 V microcontroller GPIO pins from IEC 61000-4-2 ESD discharges during field wiring.

IC Role / Device Role / Timing Role: Anode tied to GPIO, cathode to 3.3 V rail; conducts when pin voltage exceeds 3.3 V + V_Z.

Use Value: Activates within 1 ns to clamp 8 kV contact discharge to <4.0 V peak, preserving GPIO oxide integrity per JEDEC JESD22-A114F.

Use Scenario: Detects undervoltage condition on 24 V DC industrial supply feeding PLC digital input stage.

IC Role / Device Role / Timing Role: Zener stacked with resistor divider to generate enable signal for supervisor IC when rail drops below 22 V.

Use Value: Tight 4.4–5.0 V V_Z tolerance ensures trip point repeatability ±0.3 V across production lots, reducing false triggers.

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 MMBZ5225BS-7-F	4.6 V nominal V_Z at 20 mA; ±5 % tolerance; 15 Ω r_diff; SOT23 package	Higher test current shifts knee sharpness - better for high-precision references but less effective for low-current clamping	Select when tighter regulation at >10 mA is required; verify thermal margin at 20 mA bias
Vishay BZX84-C4V7-E3-08	Identical V_Z range (4.4–5.0 V), same SOT23 package, but ±5 % tolerance achieved via different process - 3.5 µA I_R max at 3.5 V	Negligible functional difference; RoHS-compliant variant with alternate tape-and-reel packaging	Drop-in replacement for dual-sourcing; confirm reel orientation compatibility with pick-and-place feeders

Compared with BZX84-C4V7,215, MMBZ5225BS-7-F offers lower dynamic impedance at higher currents but requires greater bias power, while BZX84-C4V7-E3-08 provides identical electrical behavior with logistics-level differentiation - making the Nexperia part optimal for low-quiescent, thermally constrained designs.

Availability

BZX84-C4V7,215 is available at Aetrix Electronics and suitable for overvoltage protection, reference voltage generation, ESD clamping, and power-rail monitoring requiring stable component supply across industrial automation, sensor interface, and embedded control programs.

Supply support for BZX84-C4V7,215 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 headquartered in Nijmegen, Netherlands, specializing in high-volume logic, discrete, and MOSFET solutions with emphasis on efficiency, reliability, and miniaturization.

The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage regulation and transient suppression in consumer, industrial, and communications equipment where SMT footprint and parametric consistency are critical.

FAQ

What is the maximum continuous Zener current for BZX84-C4V7,215?

The device supports up to 50 mA DC Zener current under derated conditions: at 25 °C ambient, P_tot = 250 mW limits I_Z to ~53 mA (250 mW ÷ 4.7 V), but datasheet specifies 200 mA absolute maximum forward current and 5 mA nominal test current. For reliable long-term operation, limit I_Z to 20 mA with adequate PCB copper area to maintain T_j < 125 °C.

Can BZX84-C4V7,215 be used in place of a 4.7 V linear regulator?

No - it is a two-terminal Zener diode, not a three-terminal regulator. It lacks current-limiting circuitry, dropout control, or load regulation. It can only provide coarse voltage clamping or reference when paired with an external series resistor; it cannot source regulated current to variable loads like a 78L04 or TLV70447.

How does the "215" suffix in BZX84-C4V7,215 affect specifications?

The "215" denotes the specific ordering code for the SOT23 package in tape-and-reel format (3,000 pcs/reel), per Nexperia's ordering nomenclature. It does not alter electrical parameters - all BZX84-C4V7 variants share identical V_Z, r_diff, I_R, and thermal specs regardless of suffix.

Is BZX84-C4V7,215 qualified for automotive applications?

No - per Nexperia's Rev. 7 datasheet (Jan 2023), the BZX84 series is explicitly marked "non-automotive qualified". Automotive-grade equivalents include the BZX84-Q series (e.g., BZX84-C4V7-Q), which undergo AEC-Q101 stress testing and feature enhanced lot traceability and PPAP documentation.

BZX84-C4V7,215 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):: 4.7 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 80 Ohms

Current - Reverse Leakage @ Vr:: 3 µA @ 2 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-C4V7,215 FAQ

1.How can I place an order for BZX84-C4V7,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C4V7,215 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-C4V7,215 reliable?

The price and inventory of BZX84-C4V7,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C4V7,215 is usually 5 days.

3.What payment methods are accepted for BZX84-C4V7,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C4V7,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C4V7,215?

BZX84-C4V7,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C4V7,215 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-C4V7,215?

For technical support, including BZX84-C4V7,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C4V7,215 requirements.

6.How does Aetrix verify that BZX84-C4V7,215 is sourced from the original manufacturer or authorized distributors?

All BZX84-C4V7,215 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-C4V7,215 meets industry standards.

7.What is the process for return or replacement of BZX84-C4V7,215?

All BZX84-C4V7,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C4V7,215, 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-C4V7,215 part is unused and in its original packaging.

Return procedure for BZX84-C4V7,215:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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