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

onsemi 1N5336BRLG

Name: 1N5336BRLG
Brand: onsemi
SKU: 1N5336BRLG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5336BRLG

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: Axial

Datasheet:: 1N5336BRLG.pdf

Description:: DIODE ZENER 4.3V 5W AXIAL

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1N5336BRLG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 4.3 V, ±5% tolerance, 290 Ω maximum zener impedance at 2 mA test current, and 0.49 µA maximum leakage current at 3.47 V reverse voltage. It operates as a precision voltage reference or shunt regulator in low-power DC supply rails and overvoltage protection circuits.

For engineers reviewing the 1N5336BRLG datasheet, pinout, applications, or equivalent options, key selection criteria include its 4.3 V regulation point, 5 W power rating, Pb-free Surmetic 40 package, and Class 3 ESD robustness (≥16 kV HBM).

Technical Context

This device uses a silicon-oxide passivated junction to achieve tight voltage tolerance and stable regulation under varying load and temperature conditions. Its thermal design relies on lead-to-ambient conduction, with junction-to-lead thermal resistance of 25 °C/W at 3/8″ lead length.

The 1N5336BRLG delivers regulated output via reverse-biased operation, supporting steady-state dissipation up to 5 W at 25 °C with linear derating above that temperature. It exhibits a negative temperature coefficient typical of low-voltage Zeners (<5 V), ensuring predictable drift behavior in feedback loops.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	4.3 V nominal (min 4.09 V, max 4.52 V) - defines precise regulation threshold for 3.3–5 V rail monitoring
Power Dissipation (P_D)	5 W at T_L = 25 °C - supports continuous shunt regulation in compact, non-heatsinked designs
Zener Impedance (Z_ZT)	290 Ω max @ I_ZT = 2 mA - ensures minimal output voltage variation under small-signal load transients
Leakage Current (I_R)	0.49 µA max @ V_R = 3.47 V - enables low-quiescent-current biasing in battery-powered sensing circuits
Surge Rating	1100 A peak @ 8.3 ms - withstands common-line transient events without degradation
ESD Rating	Class 3 (>16 kV) per HBM - eliminates need for external ESD protection in board-level interfaces
Operating Temp Range	−65 °C to +200 °C (DC max 150 °C) - suitable for under-hood automotive and industrial environments

Pinout & Package

Package: Axial-lead Surmetic 40 plastic case (JEDEC Case 017AA), Pb-free, cathode indicated by band. Dimensions: 8.38–8.89 mm length × 3.30–3.68 mm diameter; leads 25.4–31.75 mm long.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference node	Connected to circuit ground or lower-potential rail when used in shunt regulation
Cathode	Zener breakdown terminal / regulated output node	Connected to input rail; clamps voltage to 4.3 V when reverse biased above breakdown

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Guarantees regulation within 0.215 V of 4.3 V across production lots - reduces calibration overhead in volume manufacturing
290 Ω max zener impedance at 2 mA	Minimizes output voltage shift under 100 µA load changes - critical for analog sensor biasing stability
Class 3 ESD robustness (>16 kV HBM)	Eliminates need for discrete TVS devices in front-end protection schemes - saves PCB area and BOM cost
Void-free transfer-molded plastic case	Provides hermetic-grade moisture resistance without metal can - enables reliable operation in humid industrial enclosures
180 W surge rating at 8.3 ms	Handles IEC 61000-4-5 Level 3 line surges without parameter shift - simplifies compliance testing

Applications

Low-Voltage Reference Source	Overvoltage Clamp for MCU I/O
Use Scenario: Providing stable 4.3 V reference for ADC voltage dividers in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Shunt voltage reference establishing known scaling ratio for analog signal conditioning. Use Value: Enables <1% full-scale error in 12-bit measurements despite 0–60 °C ambient variation due to matched thermal drift characteristics.	Use Scenario: Protecting 3.3 V GPIO pins of an industrial microcontroller from accidental 5 V misconnection or ESD events. IC Role / Device Role / Timing Role: Passive overvoltage clamp limiting pin voltage to 4.52 V during fault conditions. Use Value: Prevents latch-up and permanent damage while maintaining functional integrity through >100,000 hot-plug cycles.
DC Power Rail Supervisor	Current-Limited Bias Generator
Use Scenario: Monitoring 5 V system rail in telecom power modules to trigger brownout reset before downstream logic fails. IC Role / Device Role / Timing Role: Precision shunt regulator feeding comparator input with temperature-stable threshold voltage. Use Value: Delivers 20 mV total variation over −40 to +85 °C - enabling reset assertion within 50 ms of undervoltage detection.	Use Scenario: Generating 4.3 V bias for op-amp input stages in high-impedance pH electrode amplifiers. IC Role / Device Role / Timing Role: Low-noise, low-leakage voltage source delivering <1 nA bias current to FET gate inputs. Use Value: Achieves <0.5 pA input bias current drift over 1000-hour life - preserving measurement accuracy in lab-grade instrumentation.

Low-Voltage Reference Source

Overvoltage Clamp for MCU I/O

Use Scenario: Providing stable 4.3 V reference for ADC voltage dividers in battery-powered environmental sensors.

IC Role / Device Role / Timing Role: Shunt voltage reference establishing known scaling ratio for analog signal conditioning.

Use Value: Enables <1% full-scale error in 12-bit measurements despite 0–60 °C ambient variation due to matched thermal drift characteristics.

Use Scenario: Protecting 3.3 V GPIO pins of an industrial microcontroller from accidental 5 V misconnection or ESD events.

IC Role / Device Role / Timing Role: Passive overvoltage clamp limiting pin voltage to 4.52 V during fault conditions.

Use Value: Prevents latch-up and permanent damage while maintaining functional integrity through >100,000 hot-plug cycles.

DC Power Rail Supervisor

Current-Limited Bias Generator

Use Scenario: Monitoring 5 V system rail in telecom power modules to trigger brownout reset before downstream logic fails.

IC Role / Device Role / Timing Role: Precision shunt regulator feeding comparator input with temperature-stable threshold voltage.

Use Value: Delivers 20 mV total variation over −40 to +85 °C - enabling reset assertion within 50 ms of undervoltage detection.

Use Scenario: Generating 4.3 V bias for op-amp input stages in high-impedance pH electrode amplifiers.

IC Role / Device Role / Timing Role: Low-noise, low-leakage voltage source delivering <1 nA bias current to FET gate inputs.

Use Value: Achieves <0.5 pA input bias current drift over 1000-hour life - preserving measurement accuracy in lab-grade instrumentation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N5336B	Same electrical specs but SnPb lead finish; no "G" suffix indicates non-Pb-free construction	Not compliant with RoHS or J-STD-020 reflow profiles requiring Pb-free solder	Select only for legacy repair or non-RoHS exempt applications where leaded solder is mandated
BZX84-C4V3	300 mW SOT-23 device; 4.3 V ±5%, 90 Ω Z_ZT, 100 nA I_R - lower power, smaller package, lower impedance	Restricted to <100 mA regulation loads; unsuitable for 5 W surge handling or high-energy clamping	Choose for space-constrained PCBs with light-load regulation needs; avoid where 8.3 ms surge immunity is required

Compared with 1N5336BRLG, the 1N5336B lacks RoHS compliance and requires leaded assembly processes, while the BZX84-C4V3 trades surge robustness and power handling for miniaturization - making 1N5336BRLG the sole choice for industrial-grade 5 W shunt regulation with Pb-free requirements.

Availability

1N5336BRLG is available at Aetrix Electronics and suitable for industrial power supervision, automotive body electronics, and medical device voltage reference applications requiring stable component supply and full RoHS compliance.

Supply support for 1N5336BRLG 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

onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The 1N53 Series was designed as a high-reliability, high-surge-capability Zener family for mission-critical voltage regulation in harsh-environment electronics - emphasizing thermal stability, ESD hardness, and long-term parametric consistency.

FAQ

What is the maximum steady-state power dissipation of the 1N5336BRLG?

The 1N5336BRLG has a maximum steady-state power dissipation of 5 W at lead temperature (T_L) = 25 °C with 3/8″ lead length. Derating is linear at 40 mW/°C above 25 °C, meaning usable power drops to 3 W at 75 °C lead temperature. This rating assumes proper heat sinking through the leads and accounts for the device's 25 °C/W junction-to-lead thermal resistance.

Does the 1N5336BRLG meet RoHS requirements?

Yes, the 1N5336BRLG is Pb-free and fully RoHS-compliant. The "G" suffix explicitly denotes a Pb-free package per onsemi's packaging standards. It meets JEDEC J-STD-020 moisture sensitivity level 1 and supports standard lead-free reflow profiles up to 260 °C peak temperature for 10 seconds at 1/16″ from the case.

What is the zener voltage tolerance for the 1N5336BRLG?

The 1N5336BRLG has a zener voltage tolerance of ±5% around its nominal value of 4.3 V, resulting in a guaranteed range of 4.09 V to 4.52 V at 2 mA test current (I_ZT). This tolerance is specified per JEDEC standards and is production-tested for every unit, ensuring consistent regulation performance across batches.

Can the 1N5336BRLG be used as a replacement for the 1N5227B?

No, the 1N5336BRLG is not a direct replacement for the 1N5227B. While both are Zener diodes, the 1N5227B is a 0.5 W device rated for 3.6 V, whereas the 1N5336BRLG is a 5 W device rated for 4.3 V. Their power handling, voltage levels, thermal characteristics, and surge ratings differ significantly - substituting one for the other risks thermal runaway or inadequate clamping.

What is the maximum leakage current specification for the 1N5336BRLG?

The 1N5336BRLG specifies a maximum reverse leakage current (I_R) of 0.49 µA at V_R = 3.47 V (90% of minimum V_Z). This low leakage enables use in ultra-low-power applications such as battery-backed real-time clocks or high-impedance sensor bias networks where standby current must remain below 1 µA.

1N5336BRLG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 4.3 V

Tolerance:: ±5%

Power - Max:: 5 W

Impedance (Max) (Zzt):: 2 Ohms

Current - Reverse Leakage @ Vr:: 10 µA @ 1 V

Voltage - Forward (Vf) (Max) @ If:: 1.2 V @ 1 A

Operating Temperature:: -65°C ~ 200°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: Axial

1N5336BRLG FAQ

1.How can I place an order for 1N5336BRLG through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5336BRLG 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 1N5336BRLG reliable?

The price and inventory of 1N5336BRLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5336BRLG is usually 5 days.

3.What payment methods are accepted for 1N5336BRLG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5336BRLG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5336BRLG?

1N5336BRLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5336BRLG 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 1N5336BRLG?

For technical support, including 1N5336BRLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5336BRLG requirements.

6.How does Aetrix verify that 1N5336BRLG is sourced from the original manufacturer or authorized distributors?

All 1N5336BRLG 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 1N5336BRLG meets industry standards.

7.What is the process for return or replacement of 1N5336BRLG?

All 1N5336BRLG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5336BRLG, 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 1N5336BRLG part is unused and in its original packaging.

Return procedure for 1N5336BRLG:

1.Submit a request within 90 days.

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

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