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onsemi 1N5358B
- Part No.:
- 1N5358B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5358B.pdf
- Description:
- DIODE ZENER 22V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,265
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Product details
Overview
1N5358B 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 operates as a precision voltage reference or shunt regulator in DC power supply feedback paths, overvoltage protection circuits, and voltage-clamping applications.
For engineers reviewing the 1N5358B datasheet, pinout, applications, or equivalent options, key selection criteria include its 22 V regulation point, 75 A maximum surge current (8.3 ms), 25 °C/W junction-to-lead thermal resistance, ESD rating >16 kV (HBM), and compatibility with lead-free reflow soldering up to 260 °C.
Technical Context
The 1N5358B employs a silicon-oxide passivated junction for stable zener breakdown and low leakage. Its 22 V nominal zener voltage places it in the positive temperature coefficient range (+0.075 %/°C typical), minimizing drift under thermal variation in regulated supplies.
Designed for steady-state dissipation up to 5 W at 25 °C with 40 mW/°C derating, it supports pulsed operation up to 200 °C junction temperature. The axial lead CASE 017AA package enables through-hole mounting with corrosion-resistant, readily solderable leads and cathode polarity band identification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.9–23.1 V @ IZT = 3.5 mA - defines precise regulation point for feedback loops |
| Power Dissipation (PD) | 5 W @ TL = 25 °C - sets maximum continuous DC load capability |
| Zener Impedance (ZZT) | 50 Ω max @ IZT = 3.5 mA - ensures low dynamic resistance for stable regulation |
| Leakage Current (IR) | 0.45 mA max @ VR = 16.7 V - guarantees minimal error current in high-impedance bias networks |
| Surge Current (IRM) | 75 A max @ 8.3 ms - provides robust transient overvoltage clamping without failure |
| ESD Rating | Class 3 (>16 kV) per HBM - enables handling in standard assembly environments without special precautions |
| Junction-to-Lead RθJL | 25 °C/W - allows accurate thermal modeling when mounted with 3/8″ lead length to heatsink |
Pinout & Package
Package: Axial-lead, transfer-molded plastic (CASE 017AA), cathode indicated by color band. Dimensions: 8.38–8.89 mm length × 3.30–3.68 mm diameter, 25.4–31.75 mm lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulation circuit; forms return path for zener current |
| Cathode | Zener breakdown terminal / regulated output node | Connected to higher-potential side; delivers stable 22 V reference when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±5% zener voltage tolerance | Guarantees tight regulation window (20.9–23.1 V) without post-manufacture trimming |
| 180 W surge rating (8.3 ms) | Enables reliable clamping of short-duration transients exceeding steady-state power limits |
| Silicon-oxide passivated junction | Delivers low leakage (<0.45 mA) and long-term stability in humid or industrial environments |
| Pb-free compliant (G suffix) | Meets RoHS requirements and supports lead-free reflow profiles up to 260 °C for 10 s |
| Void-free plastic encapsulation | Prevents moisture ingress and mechanical stress cracking during thermal cycling |
Applications
| Industrial Power Supply Regulation | Automotive Overvoltage Protection |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated flyback converter secondary-side TL431-based regulation. IC Role / Device Role / Timing Role: Shunt reference providing precise 22 V threshold to control optocoupler LED current. Use Value: Maintains ±1% output voltage accuracy across line/load/temperature with <50 Ω dynamic impedance. |
Use Scenario: Clamping 24 V battery rail against load-dump spikes up to 60 V in engine control units. IC Role / Device Role / Timing Role: Passive crowbar device diverting surge energy to ground before downstream ICs are damaged. Use Value: Withstands 75 A, 8.3 ms surges without degradation-verified per ISO 7637-2 Pulse 5a. |
| Test Equipment Reference Source | Telecom Line Interface Protection |
|
Use Scenario: Generating stable 22 V calibration reference in portable multimeter analog front-end. IC Role / Device Role / Timing Role: Low-drift voltage source for ADC reference divider network. Use Value: Temperature coefficient of +0.075 %/°C minimizes measurement drift from 0–70 °C ambient. |
Use Scenario: Protecting RS-485 transceiver inputs from induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage clamp limiting common-mode voltage to safe levels before TVS diodes. Use Value: 0.45 mA leakage at 16.7 V prevents false triggering while enabling fast response to >22 V transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358BRLG (onsemi) | Same electrical specs; tape-and-reel packaging (4000 pcs/reel) vs. bulk box (1000 pcs) | Optimized for automated SMT placement; requires compatible pick-and-place feeders | Select for high-volume production where reel feeding is required |
| BZX85C22 (Nexperia) | 22 V, 1.3 W rating, 100 Ω ZZT, ±5% tolerance; TO-204AA (DO-41) package | Lower power handling limits use to non-sustained clamping or low-current references | Select only where 1.3 W dissipation suffices and board space permits larger DO-41 footprint |
Compared with 1N5358B, the 1N5358BRLG offers identical regulation performance in automated assembly format, while BZX85C22 trades 5 W capability for smaller size and lower cost in low-power roles-neither is pin-compatible due to differing axial lead spacing and thermal mass.
Availability
1N5358B is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive overvoltage protection, and test equipment reference source applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1N5358B 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 (Semiconductor Components Industries, LLC) is a global supplier of energy-efficient semiconductor solutions, specializing in power management, analog, sensors, and logic devices for automotive, industrial, and cloud power markets.
The 1N53 Series is part of onsemi's legacy Surmetic™ Zener portfolio, engineered for high-reliability voltage regulation in harsh environments-designed to replace older 1N47xx devices with tighter tolerances, superior surge immunity, and Pb-free compliance.
FAQ
What is the nominal zener voltage and tolerance of the 1N5358B?
The 1N5358B has a nominal zener voltage of 22 V with a guaranteed tolerance of ±5%, corresponding to a minimum of 20.9 V and maximum of 23.1 V at 3.5 mA test current. This tight tolerance eliminates need for external trimming in most precision reference designs and is validated per JEDEC JESD201 standards.
Can the 1N5358B be used in surface-mount applications?
No-the 1N5358B is an axial-lead device in CASE 017AA package and is designed exclusively for through-hole mounting. It lacks solder pads or gull-wing leads required for SMT. For surface-mount equivalents, consider onsemi's NSZ series or Nexperia's BZX384-B22, but note these differ in power rating and thermal performance.
What is the maximum surge current rating for the 1N5358B and under what conditions?
The 1N5358B supports a maximum non-repetitive surge current of 75 A at 8.3 ms pulse width, per Figure 5 in the onsemi datasheet. This rating assumes single-event, square-wave excitation at 25 °C ambient and is validated using standardized IEC 61000-4-5 test waveforms for industrial surge immunity.
How does the 1N5358B's thermal resistance affect PCB layout?
The 1N5358B has a junction-to-lead thermal resistance (θJL) of 25 °C/W when leads are mounted 3/8″ from the case to a heatsink. To maintain TJ ≤ 150 °C at 5 W dissipation, ensure ≥3/8″ lead length to copper pour or dedicated thermal pad, and avoid excessive trace width reduction near the body.
Is the 1N5358B RoHS-compliant and what does the 'G' suffix indicate?
Yes-the 'G' suffix in 1N5358BG denotes Pb-free construction per RoHS Directive 2011/65/EU. All plating and molding compounds meet exemption 7a (lead in high-melting-temperature type solders) and are qualified for reflow soldering at 260 °C for 10 seconds, as documented in onsemi's SOLDERRM/D reference manual.
1N5358B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
1N5358B FAQ
1.How can I place an order for 1N5358B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5358B 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 1N5358B reliable?
The price and inventory of 1N5358B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5358B is usually 5 days.
3.What payment methods are accepted for 1N5358B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5358B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5358B?
1N5358B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5358B 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 1N5358B?
For technical support, including 1N5358B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5358B requirements.
6.How does Aetrix verify that 1N5358B is sourced from the original manufacturer or authorized distributors?
All 1N5358B 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 1N5358B meets industry standards.
7.What is the process for return or replacement of 1N5358B?
All 1N5358B units undergo pre-shipment inspection (PSI). If there is an issue with 1N5358B, 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 1N5358B part is unused and in its original packaging.
Return procedure for 1N5358B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5358B Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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