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

Nexperia USA Inc. BZX84-B7V5,215

Name: BZX84-B7V5,215
Brand: Nexperia USA Inc.
SKU: BZX84-B7V5,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-B7V5,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-B7V5,215.pdf

Description:: DIODE ZENER 7.5V 250MW TO236AB

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Product details

Overview

BZX84-B7V5,215 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, designed for precision low-power voltage reference and clamping in signal conditioning, power supply feedback, and overvoltage protection circuits. It delivers 7.5 V nominal breakdown voltage at 5 mA, with 80 Ω max differential resistance, 1 μA max reverse current at 5.5 V, and ±2 % tolerance across temperature.

For engineers reviewing the BZX84-B7V5,215 datasheet, BZX84-B7V5,215 pinout, BZX84-B7V5,215 application, or BZX84-B7V5,215 equivalent, this page provides verified Zener parameters, thermal derating guidance, SOT23 terminal mapping, and direct alternatives for voltage reference design validation and BOM optimization.

Technical Context

This Zener diode operates in reverse-biased breakdown mode to maintain stable DC voltage under varying load and temperature conditions. Its 7.5 V nominal Zener voltage is specified at I_Z = 5 mA, with a temperature coefficient of +2.5 mV/K - indicating positive drift above 6 V - and a maximum differential resistance of 80 Ω ensuring tight regulation under dynamic current changes.

The device supports non-repetitive surge handling up to 40 W (100 μs pulse), has a junction-to-ambient thermal resistance of 500 K/W on FR4 PCB, and is rated for continuous operation up to 150 °C junction temperature. Its 250 mW total power dissipation limit requires thermal derating above 25 °C ambient per the published R_th(j-a) curve.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	7.35 V to 7.65 V at I_Z = 5 mA - defines precise regulation window for feedback loops and reference nodes
Differential Resistance r_dif	≤80 Ω - ensures minimal output voltage shift under ±1 mA load variation
Reverse Current I_R	≤1 μA at V_R = 5.5 V - guarantees low leakage in high-impedance bias networks
Forward Voltage V_F	≤0.9 V at I_F = 10 mA - enables use as low-drop clamp or series protection diode
Power Dissipation P_tot	250 mW at T_amb ≤ 25 °C - sets maximum steady-state DC power in standard PCB layout
Non-repetitive Peak Power	40 W (100 μs pulse) - supports transient overvoltage suppression without failure
Junction Temperature	−55 °C to +150 °C - validates operation in industrial and extended-temperature environments

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact 2.9 mm × 1.3 mm footprint, 1.1 mm height, and gull-wing lead form for reflow compatibility.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Connects to lower-potential node in reverse-bias configuration; required for forward conduction path
2	Not Connected (n.c.)	Internal die pad with no electrical bond; must remain unconnected on PCB to avoid parasitic coupling
3	Cathode (K)	Connects to higher-potential node; carries reverse current during Zener breakdown; primary thermal path to PCB

Key Features

Feature	Design Value
±2 % Zener voltage tolerance	Enables tighter regulation than ±5 % variants (BZX84-C) without premium ±1 % (BZX84-A) cost
Low differential resistance (≤80 Ω)	Reduces output voltage deviation under load transients in feedback divider networks
Non-repetitive peak power rating (40 W)	Allows single-event ESD or surge suppression without external TVS in cost-sensitive designs
Thermal resistance R_th(j-sp) = 330 K/W	Supports reliable heat transfer from junction to cathode solder point on standard FR4
Operating junction temperature up to 150 °C	Validates use in enclosed industrial enclosures or near heat-generating components

Applications

Power Supply Feedback

Signal Level Clamping

Use Scenario: Regulating output voltage in isolated flyback or buck converter feedback loop using optocoupler-coupled TL431 replacement.

IC Role / Device Role / Timing Role: Zener reference element setting error amplifier threshold; replaces higher-cost shunt regulators where ±2 % accuracy suffices.

Use Value: Enables stable 7.5 V reference with <80 Ω dynamic impedance, minimizing output ripple sensitivity to optocoupler CTR variation.

Use Scenario: Protecting ADC input pins from overvoltage during sensor hot-plug or ESD events.

IC Role / Device Role / Timing Role: Bidirectional clamping device limiting input swing to 0 V–7.5 V range; used with series resistor to limit fault current.

Use Value: Provides sub-1 μA leakage below 5.5 V while clamping transients to safe levels within 100 ns, preserving ADC integrity.

Reference Voltage Source

Overvoltage Protection

Use Scenario: Generating stable bias voltage for op-amp comparators in battery monitoring circuits.

IC Role / Device Role / Timing Role: Precision DC reference node referenced to ground; supplies fixed threshold for undervoltage/overvoltage detection.

Use Value: Delivers 7.5 V ±2 % across −40 °C to +125 °C with +2.5 mV/K tempco, enabling accurate state-of-charge thresholds without calibration.

Use Scenario: Safeguarding microcontroller I/O pins against accidental 12 V rail exposure in automotive body control modules.

IC Role / Device Role / Timing Role: Standalone overvoltage clamp placed between I/O line and ground; activated only during fault condition.

Use Value: Absorbs 40 W surges (100 μs) without degradation, preventing latch-up or gate oxide damage in 3.3 V or 5 V logic interfaces.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C7V5,215	±5 % tolerance (7.0–7.9 V), higher 150 Ω r_dif, 0.7 μA I_R at 5.5 V	Acceptable where cost priority outweighs regulation precision; less stable under load variation	Select when budget constraints dominate and ±5 % V_Z drift is acceptable in open-loop sensing
MMSZ5235B-7-F	±5 % tolerance, 7.5 V nominal, 80 Ω r_dif, 200 mW P_tot, SOD-123 package	Larger footprint, lower thermal performance (R_th(j-a) ≈ 625 K/W), same regulation spec	Choose only if SOD-123 is already standardized in layout; avoid for high-density or thermally constrained boards

Compared with BZX84-B7V5,215, the BZX84-C7V5,215 trades regulation accuracy for lower unit cost, while MMSZ5235B-7-F matches key electrical specs but sacrifices thermal efficiency and board space due to larger SOD-123 packaging - making the BZX84-B7V5,215 optimal for space-constrained, precision-regulated industrial designs.

Availability

BZX84-B7V5,215 is available at Aetrix Electronics and suitable for power supply feedback, signal clamping, reference voltage generation, and overvoltage protection requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for BZX84-B7V5,215 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.

The BZX84 series belongs to Nexperia's precision Zener regulator portfolio, engineered specifically for cost-effective, space-efficient voltage reference and protection in consumer, industrial, and computing power systems.

FAQ

What is the maximum continuous reverse current the BZX84-B7V5,215 can sustain at 7.5 V?

The device does not specify a maximum continuous reverse current at V_Z; instead, it is limited by its 250 mW total power dissipation. At 7.5 V, this corresponds to I_Z(max) = 250 mW / 7.5 V ≈ 33.3 mA under ideal thermal conditions (T_amb = 25 °C, FR4 PCB). Derating is required above 25 °C ambient per the 500 K/W thermal resistance.

Can the BZX84-B7V5,215 be used in forward-biased applications?

Yes - its forward voltage is specified ≤0.9 V at 10 mA, making it suitable as a low-drop series diode or polarity protection element. However, its primary design intent and characterization are for reverse-bias Zener operation; forward conduction capability is secondary and not optimized for high-current switching.

How does the "215" suffix in BZX84-B7V5,215 affect specification or packaging?

The "215" is Nexperia's ordering code denoting tape-and-reel packaging in 3,000-unit reels with standard SOT23 carrier tape (EIA-481-D compliant), moisture sensitivity level 1, and RoHS-compliant finish. It does not alter electrical or thermal specifications - all BZX84-B7V5 variants share identical parametric performance.

Is the n.c. pin (Pin 2) internally bonded or floating?

Pin 2 is a true no-connect terminal: it is an internal die pad with no wire bond or metallurgical connection to the silicon die. It must remain unconnected on the PCB; routing traces or vias to it may introduce parasitic capacitance or unintended coupling paths that degrade high-frequency noise immunity.

BZX84-B7V5,215 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):: 7.5 V

Tolerance:: ±2%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 15 Ohms

Current - Reverse Leakage @ Vr:: 1 µA @ 5 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-B7V5,215 FAQ

1.How can I place an order for BZX84-B7V5,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-B7V5,215 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-B7V5,215 reliable?

The price and inventory of BZX84-B7V5,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B7V5,215 is usually 5 days.

3.What payment methods are accepted for BZX84-B7V5,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B7V5,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-B7V5,215?

BZX84-B7V5,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-B7V5,215 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-B7V5,215?

For technical support, including BZX84-B7V5,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B7V5,215 requirements.

6.How does Aetrix verify that BZX84-B7V5,215 is sourced from the original manufacturer or authorized distributors?

All BZX84-B7V5,215 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-B7V5,215 meets industry standards.

7.What is the process for return or replacement of BZX84-B7V5,215?

All BZX84-B7V5,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B7V5,215, 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-B7V5,215 part is unused and in its original packaging.

Return procedure for BZX84-B7V5,215:

1.Submit a request within 90 days.

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

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