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

onsemi 1N5358BRLG

Name: 1N5358BRLG
Brand: onsemi
SKU: 1N5358BRLG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5358BRLG

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: T-18, Axial

Datasheet:: 1N5358BRLG.pdf

Description:: DIODE ZENER 22V 5W AXIAL

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1N5358BRLG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 22 V, ±5% tolerance, 50 Ω maximum zener impedance at 3.5 mA test current, and 0.45 mA maximum leakage current at 16.7 V. It delivers stable voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation for industrial power converters.

For engineers reviewing the 1N5358BRLG datasheet, pinout, applications, or equivalent options, key selection criteria include its 22 V nominal zener voltage, 50 Ω dynamic impedance, 180 W surge rating (8.3 ms), Pb-free Surmetic 40 package, and −65 °C to +200 °C operating temperature range.

Technical Context

This device operates as a reverse-biased silicon Zener regulator with oxide-passivated junction technology, enabling tight voltage tolerance and low leakage. Its thermal design relies on lead-to-ambient conduction, with junction-to-lead thermal resistance of 25 °C/W at 3/8″ lead length and derating of 40 mW/°C above 25 °C.

The 1N5358BRLG exhibits a positive temperature coefficient of approximately +3.5 mV/°C near 22 V, per Figure 3, and supports non-repetitive surge currents up to 216 A at 8.3 ms pulse width, verified per Figure 5 and Note 4.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	22 V nominal (20.9–23.1 V range); defines regulated output voltage under 3.5 mA test current
Power Dissipation	5 W at T_L = 25 °C; sets maximum continuous DC power handling before thermal derating
Zener Impedance (Z_ZT)	50 Ω max @ I_ZT = 3.5 mA; determines regulation stiffness and output voltage variation under load changes
Leakage Current (I_R)	0.45 mA max @ V_R = 16.7 V; limits standby power loss in high-impedance bias networks
Surge Current (I_RM)	216 A peak @ 8.3 ms; enables transient overvoltage clamping without failure
Operating Temp Range	−65 °C to +200 °C; supports deployment in automotive engine compartments and industrial motor drives
ESD Rating	Class 3 (>16 kV HBM); ensures robustness during board handling and assembly

Pinout & Package

Package: Axial-lead Surmetic 40 plastic case (Case 017AA), Pb-free, cathode indicated by band. Dimensions: 8.38–8.89 mm body length, 3.30–3.68 mm body diameter, 25.4–31.75 mm lead length (K), 0.94–1.09 mm lead diameter (D).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference	Connected to lower-potential node in reverse-bias regulation; forms return path for zener current
Cathode	Zener breakdown terminal / Regulation output node	Connected to regulated voltage rail; polarity band identifies this terminal for correct PCB orientation

Key Features

Feature	Design Value
Silicon-oxide passivated junction	Enables ±5% V_Z tolerance and <0.45 mA leakage at 16.7 V, improving long-term stability vs. non-passivated Zeners
180 W surge rating (8.3 ms)	Clamps 216 A transients without degradation-critical for input-stage overvoltage protection in AC/DC adapters
Pb-free Surmetic 40 package	RoHS-compliant axial construction with corrosion-resistant leads and 260 °C solderability (10 s @ 1/16″ from case)
Guaranteed six-parameter limits	V_Z, Z_ZT, Z_ZK, I_ZK, I_R, and I_ZM all specified - reduces qualification effort for safety-critical designs

Applications

Switch-Mode Power Supply Feedback	Industrial Overvoltage Clamp
Use Scenario: Regulates error amplifier reference in isolated flyback converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Zener voltage reference providing stable 22 V threshold for TL431 bias network or optocoupler LED drive. Use Value: 50 Ω Z_ZT minimizes output voltage drift across line/load transients; 5 W rating sustains continuous dissipation during overload conditions.	Use Scenario: Clamps 48 V DC bus surges in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Standby shunt protector activated only during >22 V transients, diverting energy to ground. Use Value: 216 A surge capability handles 100 A/μs edge rates per IEC 61000-4-5; −65 °C to +200 °C range ensures operation in unheated enclosures.
Automotive Battery Monitoring Reference	Test Equipment Voltage Calibrator
Use Scenario: Provides precision 22 V reference for microcontroller ADC measurement of 24 V vehicle battery health. IC Role / Device Role / Timing Role: Stable DC voltage source feeding resistive divider into MCU analog input channel. Use Value: ±5% V_Z tolerance and <0.45 mA leakage enable <1% total measurement error; 200 °C max rating survives under-hood thermal cycling.	Use Scenario: Serves as traceable 22 V calibration point in portable multimeter internal reference subsystem. IC Role / Device Role / Timing Role: Primary voltage standard against which DAC outputs are trimmed and verified. Use Value: Tight 20.9–23.1 V window and guaranteed Z_ZT allow factory calibration at single current point (3.5 mA); Pb-free marking ensures compliance audit readiness.

Switch-Mode Power Supply Feedback

Industrial Overvoltage Clamp

Use Scenario: Regulates error amplifier reference in isolated flyback converter secondary-side feedback loop.

IC Role / Device Role / Timing Role: Zener voltage reference providing stable 22 V threshold for TL431 bias network or optocoupler LED drive.

Use Value: 50 Ω Z_ZT minimizes output voltage drift across line/load transients; 5 W rating sustains continuous dissipation during overload conditions.

Use Scenario: Clamps 48 V DC bus surges in programmable logic controller (PLC) I/O modules.

IC Role / Device Role / Timing Role: Standby shunt protector activated only during >22 V transients, diverting energy to ground.

Use Value: 216 A surge capability handles 100 A/μs edge rates per IEC 61000-4-5; −65 °C to +200 °C range ensures operation in unheated enclosures.

Automotive Battery Monitoring Reference

Test Equipment Voltage Calibrator

Use Scenario: Provides precision 22 V reference for microcontroller ADC measurement of 24 V vehicle battery health.

IC Role / Device Role / Timing Role: Stable DC voltage source feeding resistive divider into MCU analog input channel.

Use Value: ±5% V_Z tolerance and <0.45 mA leakage enable <1% total measurement error; 200 °C max rating survives under-hood thermal cycling.

Use Scenario: Serves as traceable 22 V calibration point in portable multimeter internal reference subsystem.

IC Role / Device Role / Timing Role: Primary voltage standard against which DAC outputs are trimmed and verified.

Use Value: Tight 20.9–23.1 V window and guaranteed Z_ZT allow factory calibration at single current point (3.5 mA); Pb-free marking ensures compliance audit readiness.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N5358B	Same electrical specs but SnPb lead finish; not RoHS-compliant	Restricted to legacy industrial equipment exempt from Pb-free mandates	Select only if Pb-free compliance is waived and existing SnPb assembly process is in place
BZX85C22	22 V, 1.3 W rating, 100 Ω Z_ZT, DO-41 package; lower power and higher impedance	Suitable for low-current bias networks but insufficient for 5 W continuous regulation	Choose only for space-constrained PCBs where 1.3 W dissipation and relaxed regulation stiffness are acceptable

Compared with 1N5358BRLG, the 1N5358B lacks Pb-free compliance and requires SnPb reflow, while BZX85C22 sacrifices 3.7× power handling and 2× regulation accuracy-making 1N5358BRLG the sole option for robust 5 W, RoHS-compliant, 22 V reference designs.

Availability

1N5358BRLG is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial overvoltage clamps, automotive battery monitors, and test equipment calibrators requiring stable component supply with full RoHS compliance and extended temperature support.

Supply support for 1N5358BRLG 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 supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The 1N53 Series belongs to onsemi's Surmetic Zener portfolio, engineered for high-reliability voltage regulation in harsh environments-emphasizing tight tolerance, surge resilience, and wide temperature operation.

FAQ

What is the exact zener voltage tolerance and test condition for 1N5358BRLG?

The 1N5358BRLG has a ±5% zener voltage tolerance, verified at I_ZT = 3.5 mA with 40 ±10 ms current application prior to measurement. Its nominal V_Z is 22 V, with minimum 20.9 V and maximum 23.1 V across the full production lot, per onsemi datasheet Rev. 19, page 3.

Can 1N5358BRLG replace older 1N5358B in existing designs?

Yes, 1N5358BRLG is a direct Pb-free drop-in replacement for 1N5358B, sharing identical electrical specifications, mechanical dimensions (Case 017AA), and axial-lead pinout. The only difference is the lead finish-1N5358BRLG uses matte tin, while 1N5358B uses SnPb-requiring no PCB or schematic changes.

What is the maximum continuous zener current (I_ZM) for 1N5358BRLG at 25°C?

The maximum DC zener current for 1N5358BRLG is 75 mA at T_L = 25°C, calculated as 5 W / 22 V ≈ 227 mA, but limited by the datasheet-specified 75 mA value to ensure safe operation within thermal and impedance constraints at nominal V_Z.

How does the 1N5358BRLG perform under pulsed surge conditions?

The 1N5358BRLG supports up to 216 A peak non-repetitive surge current at 8.3 ms pulse width, per Figure 5 in the datasheet. This enables reliable clamping of lightning-induced transients and inductive switching spikes without parametric shift or catastrophic failure.

Is thermal derating required for 1N5358BRLG when ambient temperature exceeds 25°C?

Yes, 1N5358BRLG must be derated at 40 mW/°C above 25°C ambient, based on its 25 °C/W junction-to-lead thermal resistance and 3/8″ lead length. At 75°C ambient, maximum allowable power drops to 3 W, requiring careful layout with adequate copper pour or heatsinking for sustained operation.

1N5358BRLG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: T-18, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 22 V

Tolerance:: ±5%

Power - Max:: 5 W

Impedance (Max) (Zzt):: 3.5 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 16.7 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

1N5358BRLG FAQ

1.How can I place an order for 1N5358BRLG through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5358BRLG 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 1N5358BRLG reliable?

The price and inventory of 1N5358BRLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5358BRLG is usually 5 days.

3.What payment methods are accepted for 1N5358BRLG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5358BRLG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5358BRLG?

1N5358BRLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5358BRLG 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 1N5358BRLG?

For technical support, including 1N5358BRLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5358BRLG requirements.

6.How does Aetrix verify that 1N5358BRLG is sourced from the original manufacturer or authorized distributors?

All 1N5358BRLG 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 1N5358BRLG meets industry standards.

7.What is the process for return or replacement of 1N5358BRLG?

All 1N5358BRLG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5358BRLG, 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 1N5358BRLG part is unused and in its original packaging.

Return procedure for 1N5358BRLG:

1.Submit a request within 90 days.

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

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