Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. BZX84-C4V7,235

Name: BZX84-C4V7,235
Brand: Nexperia USA Inc.
SKU: BZX84-C4V7,235
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX84-C4V7,235

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-C4V7,235.pdf

Description:: DIODE ZENER 4.7V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:20,826

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BZX84-C4V7,235 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 4.4 V to 5.0 V breakdown at 5 mA, with 250 mW total power dissipation and 3 µA reverse current at 1 V, used for low-power voltage reference and overvoltage protection in consumer power management circuits.

For engineers reviewing the BZX84-C4V7,235 datasheet, BZX84-C4V7,235 pinout, BZX84-C4V7,235 application, or BZX84-C4V7,235 equivalent, this page delivers verified Zener voltage, differential resistance, temperature coefficient, thermal resistance, and marking code - all confirmed from Nexperia's Rev. 7 product data sheet.

Technical Context

This Zener diode operates in reverse-bias breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. Its 4.7 V nominal Zener voltage is specified at 5 mA test current with ±5 % tolerance, and exhibits a positive temperature coefficient of −3.5 mV/K to +0.2 mV/K across the operating range.

Designed for surface-mount use on FR4 PCBs with single-sided 70 µm copper, it supports non-repetitive peak reverse power dissipation up to 40 W (100 µs pulse), while sustaining continuous operation at ≤250 mW with junction temperature limited to 150 °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 regulated output voltage window for reference design
Differential Resistance (r_dif)	500 Ω max - determines regulation stiffness under small-signal load variation
Reverse Current (I_R)	3 µA max at V_R = 1 V - sets leakage-dependent quiescent power loss in standby
Forward Voltage (V_F)	0.9 V max at I_F = 10 mA - constrains forward conduction loss during polarity reversal events
Junction-to-Ambient R_th(j-a)	500 K/W - establishes maximum allowable ambient temperature rise at full 250 mW dissipation
Non-repetitive Peak Power (P_ZSM)	40 W for 100 µs - enables transient surge clamping without device failure

Pinout & Package

Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with standard footprint per Figure 12 (reflow) and Figure 13 (wave soldering).

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Connected to lower-potential node in reverse-bias configuration; carries forward current when biased positively
2	Not Connected (n.c.)	Internally unconnected lead; must remain floating - no PCB trace or thermal pad connection permitted
3	Cathode (K)	Connected to higher-potential node in reverse-bias regulation; primary heat path via solder point (R_th(j-sp) = 330 K/W)

Key Features

Feature	Design Value
±5 % Zener tolerance (BZX84-C series)	Enables cost-optimized voltage reference where tight regulation is not required
250 mW total power dissipation	Supports continuous regulation in space-constrained consumer PCBs without forced cooling
Non-repetitive 40 W surge rating	Provides robust ESD and transient overvoltage protection without external TVS staging
SOT23 package with n.c. pin	Reduces parasitic capacitance and improves high-frequency stability vs. 2-pin alternatives
Marking code Z1%	Enables visual identification and traceability on assembled boards per Table 4

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Providing stable 4.7 V bias for op-amp comparators in battery-powered sensor nodes.

IC Role / Device Role / Timing Role: Zener voltage reference establishing precise trip threshold independent of input rail variation.

Use Value: Maintains comparator accuracy within ±5 % over −55 °C to +150 °C ambient, eliminating need for precision voltage references.

Use Scenario: Protecting microcontroller GPIO pins against 12 V accidental contact in automotive accessory modules.

IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting pin voltage to ≤5.0 V during fault transients.

Use Value: Absorbs 40 W surges for 100 µs without degradation, preventing latch-up or oxide damage to downstream logic.

Signal Level Translation

Current Source Bias

Use Scenario: Shifting 5 V logic signals to 4.7 V interface level for legacy analog sensors.

IC Role / Device Role / Timing Role: Passive voltage dropper using forward conduction and Zener knee characteristics.

Use Value: Delivers <1 % signal distortion at 10 mA due to low 500 Ω differential resistance and 0.9 V V_F.

Use Scenario: Setting constant current for LED backlighting in portable displays using resistor-Zener bias network.

IC Role / Device Role / Timing Role: Stable voltage reference enabling predictable I_LED despite supply ripple.

Use Value: Achieves ±3 % current stability over 2.4 V–75 V input range due to flat Zener knee and low tempco (−3.5 to +0.2 mV/K).

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	Same SOT23 package, 4.7 V ±5 %, but 350 mW P_tot and 100 Ω r_dif max	Higher power handling and tighter regulation, suited for higher-current references	Select when >250 mW continuous dissipation or <500 Ω dynamic impedance is required
Vishay BZX84-C4V7-E3-08	Identical electrical specs and marking (Z1%), but RoHS-compliant matte tin finish and different tape/reel packaging	No functional difference; compatible drop-in replacement for legacy production lines	Select for compliance-critical programs requiring Vishay's qualification documentation or alternate logistics

Compared with BZX84-C4V7,235, MMBZ5225BS offers superior regulation performance at higher power, while BZX84-C4V7-E3-08 provides identical functionality with alternate compliance and packaging - enabling seamless sourcing continuity without circuit redesign.

Availability

BZX84-C4V7,235 is available at Aetrix Electronics and suitable for consumer power management, industrial sensor interfaces, LED bias networks, and embedded overvoltage protection requiring stable component supply and long-term SMT availability.

Supply support for BZX84-C4V7,235 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.

The BZX84 series belongs to Nexperia's general-purpose Zener diode portfolio, engineered for cost-sensitive, space-constrained applications demanding stable voltage regulation without active circuitry.

FAQ

What is the exact Zener voltage tolerance for BZX84-C4V7,235?

The BZX84-C4V7,235 has a nominal Zener voltage of 4.7 V with ±5 % tolerance, meaning measured breakdown falls between 4.4 V and 5.0 V when tested at 5 mA per Nexperia Rev. 7 datasheet Table 8. This tolerance band is confirmed by the "C" suffix and marking code "Z1%" in Table 4.

Can BZX84-C4V7,235 replace a 5.1 V Zener in a 5 V rail clamp?

No - BZX84-C4V7,235 is specified for 4.4 V to 5.0 V breakdown and will begin conducting significantly below 5.1 V, potentially causing premature clamping or excessive leakage. For 5.1 V rails, BZX84-C5V1 (4.8 V–5.4 V) or BZX84-B5V1 (5.0 V–5.2 V) are appropriate alternatives per Table 8.

Why does Pin 2 show "n.c." and how should it be handled on the PCB?

Pin 2 is internally not connected and serves only as a mechanical anchor in the SOT23 mold compound. It must remain electrically floating - no trace, thermal pad, or solder mask opening should connect to it. Mounting per Figure 12 ensures optimal thermal performance via Pins 1 and 3 only.

Is BZX84-C4V7,235 qualified for automotive applications?

No - per Section 13 Revision History, Rev. 7 explicitly states products changed to non-automotive qualification. Automotive variants require the "-Q" suffix (e.g., BZX84-C4V7,215-Q) and separate AEC-Q200 qualification. Use only the -Q versions in safety-critical or vehicle-mounted systems.

BZX84-C4V7,235 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):: 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-C4V7,235 FAQ

1.How can I place an order for BZX84-C4V7,235 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C4V7,235 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-C4V7,235 reliable?

The price and inventory of BZX84-C4V7,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C4V7,235 is usually 5 days.

3.What payment methods are accepted for BZX84-C4V7,235?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C4V7,235 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C4V7,235?

BZX84-C4V7,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C4V7,235 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-C4V7,235?

For technical support, including BZX84-C4V7,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C4V7,235 requirements.

6.How does Aetrix verify that BZX84-C4V7,235 is sourced from the original manufacturer or authorized distributors?

All BZX84-C4V7,235 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-C4V7,235 meets industry standards.

7.What is the process for return or replacement of BZX84-C4V7,235?

All BZX84-C4V7,235 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C4V7,235, 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-C4V7,235 part is unused and in its original packaging.

Return procedure for BZX84-C4V7,235:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…