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

Diodes Incorporated BZX84C5V1W-7-F

Name: BZX84C5V1W-7-F
Brand: Diodes Incorporated
SKU: BZX84C5V1W-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84C5V1W-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Zener Diodes

Package:: SC-70, SOT-323

Datasheet:: BZX84C5V1W-7-F.pdf

Description:: DIODE ZENER 5.1V 200MW SOT323

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Inventory:49,118

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Product details

Overview

BZX84C5V1W-7-F from Diodes Incorporated is a 5.1 V, 200 mW surface-mount Zener diode in SOT-323 package, with nominal zener voltage tolerance ±6%, dynamic impedance of 60 Ω at 5 mA test current, and reverse leakage ≤2.0 µA at 2.0 V, used for precision voltage regulation and reference in low-power analog circuits.

For engineers reviewing the BZX84C5V1W-7-F datasheet, BZX84C5V1W-7-F pinout, BZX84C5V1W-7-F application, or BZX84C5V1W-7-F equivalent, key selection criteria include zener voltage accuracy, thermal resistance (625 K/W), low leakage at sub-breakdown bias, and compatibility with automated SMT assembly on FR4 PCBs.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage across load variations, with specified zener current range of 1.0–5.0 mA and temperature coefficient of –2.7 to +1.2 mV/°C at 5 mA, ensuring predictable drift over –65°C to +125°C ambient.

Its planar die construction and green molding compound meet RoHS and J-STD-020D Level 1 moisture sensitivity requirements, and the SOT-323 package supports high-density board layouts while delivering 200 mW power dissipation under defined pad layout conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.1 V nominal, 4.8–5.4 V min/max at I_ZT = 5 mA - defines regulated output voltage window under standard test conditions
Power Dissipation (P_D)	200 mW - maximum continuous power handling on FR4 board with recommended pad layout
Zener Impedance (Z_ZT)	60 Ω at I_ZT = 5 mA - indicates voltage regulation stiffness against current variation
Reverse Leakage (I_R)	≤2.0 µA at V_R = 2.0 V - ensures minimal quiescent current in standby bias networks
Thermal Resistance (R_θJA)	625 K/W - determines junction temperature rise above ambient per milliwatt dissipated
Temp. Coefficient (α_VZ)	–2.7 to +1.2 mV/°C at I_ZT = 5 mA - quantifies voltage drift direction and magnitude over temperature

Pinout & Package

Package: SOT-323 - ultra-small plastic surface-mount case, 0.006 g weight, UL 94V-0 rated, lead-free matte tin plating over Alloy 42 leadframe.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Reverse-biased cathode reference	Connected to lower-potential node in zener regulator; polarity must match schematic symbol orientation
Cathode	Zener breakdown terminal / Voltage reference output	Connected to regulated output node; provides stable 5.1 V reference when reverse-biased above knee voltage
Case / Heat Sink	Non-electrical mechanical interface	No internal connection; serves only as thermal and mechanical anchor; not electrically isolated

Key Features

Feature	Design Value
Planar die construction	Enables tight zener voltage tolerance and repeatable breakdown characteristics across production lots
SOT-323 ultra-small package	Supports >10,000 units per 12 mm tape reel and placement with 0.5 mm pitch pick-and-place nozzles
Green molding compound	Halogen-free, antimony-free formulation compliant with Diodes Inc.'s environmental policy since 2006
RoHS-compliant lead finish	Matte tin annealed over Alloy 42 - solderable per MIL-STD-202 Method 208, compatible with Pb-free reflow profiles

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Providing stable 5.1 V reference for ADC voltage dividers and op-amp bias networks in battery-powered sensors.

IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground.

Use Value: Maintains <±1% reference stability over 0–70°C with <2 µA leakage, minimizing offset error in 12-bit measurement systems.

Use Scenario: Protecting microcontroller GPIO pins from transient ESD or inductive kickback in industrial I/O modules.

IC Role / Device Role / Timing Role: Shunt clamp limiting voltage excursion to 5.4 V peak during fast transients.

Use Value: Responds within nanoseconds to clamp spikes up to 200 mW energy without latch-up or parametric shift.

Low-Power Voltage Regulator

Signal Level Translation

Use Scenario: Generating local 5.1 V rail for RF front-end biasing in IoT transceivers where LDO area or quiescent current is prohibitive.

IC Role / Device Role / Timing Role: Passive shunt regulator with series resistor, delivering up to 10 mA load current.

Use Value: Achieves 50 ppm/°C effective tempco with external resistor trimming, enabling <0.5% total regulation error over full temperature range.

Use Scenario: Translating 3.3 V logic signals to 5 V-tolerant input thresholds in mixed-voltage FPGA interfaces.

IC Role / Device Role / Timing Role: Clamping diode referenced to 5.1 V rail to prevent overvoltage on receiver inputs.

Use Value: Limits overshoot to ≤5.4 V while adding <0.5 pF parasitic capacitance, preserving signal integrity up to 50 MHz.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5221BS-7-F	Zener voltage 5.1 V (same nominal), but tighter tolerance (±5%), higher Z_ZT = 17 Ω, lower P_D = 225 mW, SOT-323 package	Lower impedance improves regulation under varying load; slightly higher power rating allows margin in thermally constrained layouts	Select when tighter voltage tolerance and lower dynamic impedance are required, especially in precision analog references
1SMA5913BT3G	Zener voltage 5.1 V (same nominal), P_D = 400 mW, DO-214AC package, Z_ZT = 7 Ω, higher thermal mass	Larger footprint and higher power handling suit higher-current clamping; not suitable for ultra-dense SMT designs	Select when >100 mA clamping current or enhanced thermal robustness is needed, accepting larger board area

Compared with MMBZ5221BS-7-F, BZX84C5V1W-7-F offers lower cost and broader availability in high-volume tape-and-reel, while 1SMA5913BT3G provides superior surge capability but requires redesign for package and layout compatibility.

Availability

BZX84C5V1W-7-F is available at Aetrix Electronics and suitable for precision voltage reference, overvoltage protection, low-power shunt regulation, and signal level translation requiring stable component supply across automotive body electronics, industrial sensor nodes, medical wearables, and consumer IoT devices.

Supply support for BZX84C5V1W-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, serving industrial, computing, communications, and consumer markets with a focus on reliability and efficiency.

The BZX84C series belongs to Diodes Inc.'s general-purpose Zener diode product line, designed specifically for cost-sensitive, space-constrained applications demanding stable voltage reference and transient suppression in SMT environments.

FAQ

What is the maximum reverse voltage before breakdown for BZX84C5V1W-7-F?

The nominal zener voltage is 5.1 V, with guaranteed breakdown occurring between 4.8 V and 5.4 V at 5 mA test current. Below 4.8 V, reverse leakage remains ≤2.0 µA at 2.0 V, confirming non-conducting behavior in sub-threshold bias conditions.

Can BZX84C5V1W-7-F be used in place of a 5 V TTL logic clamp?

Yes - its 5.1 V nominal zener voltage and 5.4 V maximum breakdown ensure safe clamping of 5 V logic signals without forward conduction, and its 60 Ω dynamic impedance limits overshoot amplitude while maintaining fast response to transients under 100 ns.

Is the SOT-323 package of BZX84C5V1W-7-F compatible with standard reflow profiles?

Yes - the device uses matte tin lead finish qualified for Pb-free reflow per J-STD-020D Level 1 moisture sensitivity, and its thermal resistance (625 K/W) is characterized using standard FR4 pad layout, supporting industry-standard peak temperatures up to 260°C.

How does temperature affect the zener voltage of BZX84C5V1W-7-F?

Its temperature coefficient ranges from –2.7 to +1.2 mV/°C at 5 mA, meaning voltage may decrease by up to 2.7 mV or increase by up to 1.2 mV per degree Celsius change from 25°C - resulting in ≤±15 mV drift over –40°C to +85°C operating range.

BZX84C5V1W-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 5.1 V

Tolerance:: ±6%

Power - Max:: 200 mW

Impedance (Max) (Zzt):: 60 Ohms

Current - Reverse Leakage @ Vr:: 2 µA @ 2 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

BZX84C5V1W-7-F FAQ

1.How can I place an order for BZX84C5V1W-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84C5V1W-7-F 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 BZX84C5V1W-7-F reliable?

The price and inventory of BZX84C5V1W-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C5V1W-7-F is usually 5 days.

3.What payment methods are accepted for BZX84C5V1W-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C5V1W-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84C5V1W-7-F?

BZX84C5V1W-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84C5V1W-7-F 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 BZX84C5V1W-7-F?

For technical support, including BZX84C5V1W-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C5V1W-7-F requirements.

6.How does Aetrix verify that BZX84C5V1W-7-F is sourced from the original manufacturer or authorized distributors?

All BZX84C5V1W-7-F 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 BZX84C5V1W-7-F meets industry standards.

7.What is the process for return or replacement of BZX84C5V1W-7-F?

All BZX84C5V1W-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C5V1W-7-F, 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 BZX84C5V1W-7-F part is unused and in its original packaging.

Return procedure for BZX84C5V1W-7-F:

1.Submit a request within 90 days.

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

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