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

Nexperia USA Inc. BZX84-C3V6,215

Name: BZX84-C3V6,215
Brand: Nexperia USA Inc.
SKU: BZX84-C3V6,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-C3V6,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-C3V6,215.pdf

Description:: DIODE ZENER 3.6V 250MW TO236AB

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Product details

Overview

BZX84-C3V6,215 from Nexperia is a 3.6 V ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 250 mW total power dissipation and 40 W non-repetitive peak reverse power, used for precision low-power voltage reference and overvoltage protection in signal conditioning circuits.

For engineers reviewing the BZX84-C3V6,215 datasheet, BZX84-C3V6,215 pinout, BZX84-C3V6,215 application, or BZX84-C3V6,215 equivalent, this page delivers verified Zener voltage, differential resistance, temperature coefficient, reverse current limits, and thermal resistance - all critical for analog biasing, rail clamping, and ESD-tolerant reference design.

Technical Context

This device operates as a silicon planar Zener diode with controlled avalanche breakdown at nominal 3.6 V (3.4 V–3.8 V range), optimized for stable regulation under DC or low-frequency reverse-biased conditions. Its 90 Ω typical differential resistance at I_Z = 5 mA ensures tight voltage control across load variations.

The −3.5 mV/K temperature coefficient at I_Z = 5 mA indicates negative drift with rising junction temperature, requiring thermal-aware placement in precision references. Non-repetitive surge capability of 6.0 A (100 μs pulse) supports transient suppression in low-energy interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener voltage V_Z	3.6 V nominal (3.4 V to 3.8 V range at I_Z = 5 mA); defines regulated output level in shunt configuration
Differential resistance r_dif	90 Ω max at I_Z = 5 mA; determines output impedance and regulation sensitivity to current changes
Reverse current I_R	5 μA max at V_R = 1 V; sets minimum leakage in standby clamp mode
Temperature coefficient S_Z	−3.5 mV/K at I_Z = 5 mA; quantifies voltage drift per degree Celsius rise in junction temperature
Total power dissipation P_tot	250 mW at T_amb ≤ 25 °C on FR4 PCB; constrains continuous operating current to ~69 mA at 3.6 V
Non-repetitive peak reverse power	40 W (100 μs pulse); enables short-duration surge absorption without failure
Junction-to-ambient thermal resistance	500 K/W in free air; governs self-heating under sustained load

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 standard reflow-compatible solder pads.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Forward-biased terminal; connects to lower-potential node in Zener operation (reverse-biased cathode-to-anode)
2	Not connected (n.c.)	Internal die pad with no electrical connection; must remain unconnected on PCB to avoid parasitic coupling
3	Cathode (K)	Reverse-biased terminal; connects to higher-potential node to enable Zener conduction and voltage clamping

Key Features

Feature	Design Value
±5 % Zener voltage tolerance	Enables cost-effective selection for non-critical reference applications where tighter tolerances are unnecessary
250 mW power rating	Supports regulation in low-current analog stages (e.g., op-amp bias networks, sensor excitation) without heatsinking
40 W non-repetitive surge rating	Provides robustness against ESD events and line transients in industrial I/O and sensor front-ends
−3.5 mV/K temperature coefficient	Allows predictable compensation in temperature-stable references when paired with positive-drift components
SOT23 package compatibility	Ensures high-density layout in space-constrained consumer and portable electronics PCBs

Applications

Power Supply Rail Clamping

Low-Voltage Reference Generation

Use Scenario: Protecting 3.3 V microcontroller I/O pins from overvoltage during hot-plug or ESD events.

IC Role / Device Role / Timing Role: Shunt clamp diode placed between I/O line and ground, conducting above 3.6 V to limit voltage excursion.

Use Value: Limits transient voltage to ≤3.8 V (max V_Z) while absorbing up to 40 W surges, preventing latch-up or gate oxide damage.

Use Scenario: Providing stable 3.6 V bias for ADC reference input or comparator threshold in battery-powered sensors.

IC Role / Device Role / Timing Role: Passive voltage reference source in high-impedance divider network, delivering fixed potential independent of supply ripple.

Use Value: Maintains <±20 mV stability over 0–70 °C ambient due to known −3.5 mV/K coefficient and low r_dif.

Signal Level Translation

Current Source Biasing

Use Scenario: Converting 5 V logic signals to 3.3 V compatible levels using resistor-Zener interface.

IC Role / Device Role / Timing Role: Voltage-limited sink node that clips high-voltage edges while preserving signal edge integrity.

Use Value: Enables reliable level shifting without active circuitry; 90 Ω r_dif minimizes distortion on fast digital edges below 1 MHz.

Use Scenario: Setting precise bias current for photodiode transimpedance amplifier feedback loop.

IC Role / Device Role / Timing Role: Stable voltage reference defining current through series resistor (I = V_Z/R).

Use Value: Delivers 3.6 V reference with <0.5 % drift over 10–100 μA operating range, ensuring consistent photodiode response scaling.

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	3.3 V nominal, ±5 %, 200 mW rating, 30 Ω r_dif at 20 mA	Lower V_Z and tighter r_dif, but reduced surge capability (30 W)	Select when 3.3 V reference is acceptable and lower dynamic impedance is prioritized over surge margin
Vishay NZ9F3V6T5G	3.6 V nominal, ±5 %, 200 mW, 100 Ω r_dif at 5 mA, SOD-123 package	Larger SOD-123 footprint, higher thermal resistance (625 K/W), no n.c. pin	Choose for legacy board compatibility where SOT23 pinout is unavailable or thermal derating is not critical

Compared with BZX84-C3V6,215, MMBZ5226BS-7-F offers better regulation at higher currents but sacrifices surge resilience, while NZ9F3V6T5G trades package miniaturization and pinout simplicity for easier hand-soldering and lower manufacturing cost in non-density-constrained designs.

Availability

BZX84-C3V6,215 is available at Aetrix Electronics and suitable for power supply rail clamping, low-voltage reference generation, signal level translation, and current source biasing requiring stable component supply and full traceability.

Supply support for BZX84-C3V6,215 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered for low-power voltage regulation and transient protection in cost-sensitive, space-constrained applications.

FAQ

What is the maximum continuous reverse current for BZX84-C3V6,215 at 25 °C?

The maximum continuous reverse current is derived from its 250 mW power rating and nominal 3.6 V Zener voltage, yielding approximately 69 mA (I_Z = P_tot/V_Z). Operation above this current requires thermal derating per the 500 K/W junction-to-ambient resistance and ambient temperature limits.

Can BZX84-C3V6,215 be used in place of a 3.3 V Zener diode?

No - BZX84-C3V6,215 has a nominal Zener voltage of 3.6 V (3.4–3.8 V range), which exceeds the 3.3 V specification by ≥0.3 V. Substituting it for a 3.3 V part risks overvoltage in clamping or reference circuits; use BZX84-C3V3 (%B1 marking) instead.

Why is Pin 2 marked 'n.c.' and how should it be handled on the PCB?

Pin 2 is an internal mechanical tie-bar with no electrical connection. It must remain unconnected on the PCB layout to prevent unintended capacitance, leakage paths, or solder bridging. Standard SOT23 footprints allocate this pad as non-soldered or thermally isolated.

How does the −3.5 mV/K temperature coefficient affect long-term reference stability?

At 50 °C junction temperature rise, the Zener voltage decreases by ~175 mV (−3.5 mV/K × 50 K), shifting from 3.6 V to ~3.425 V. For stable references, this drift must be compensated via circuit topology (e.g., complementary tempcos) or limited to <10 °C ΔT through thermal management.

BZX84-C3V6,215 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):: 3.6 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 90 Ohms

Current - Reverse Leakage @ Vr:: 5 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-C3V6,215 FAQ

1.How can I place an order for BZX84-C3V6,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C3V6,215 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-C3V6,215 reliable?

The price and inventory of BZX84-C3V6,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C3V6,215 is usually 5 days.

3.What payment methods are accepted for BZX84-C3V6,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C3V6,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C3V6,215?

BZX84-C3V6,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C3V6,215 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-C3V6,215?

For technical support, including BZX84-C3V6,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C3V6,215 requirements.

6.How does Aetrix verify that BZX84-C3V6,215 is sourced from the original manufacturer or authorized distributors?

All BZX84-C3V6,215 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-C3V6,215 meets industry standards.

7.What is the process for return or replacement of BZX84-C3V6,215?

All BZX84-C3V6,215 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C3V6,215, 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-C3V6,215 part is unused and in its original packaging.

Return procedure for BZX84-C3V6,215:

1.Submit a request within 90 days.

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

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