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Microchip Technology 1N5358AE3/TR8
- Part No.:
- 1N5358AE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5358AE3/TR8.pdf
- Description:
- DIODE ZENER 22V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:8,863
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Product details
Overview
1N5358AE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 22 V, ±10% tolerance (A suffix), 50 mA test current (IZT), 3.5 Ω dynamic impedance (ZZ), and maximum reverse current of 0.5 μA at 15.8 V (VR). It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in DC power supplies.
For engineers reviewing the 1N5358AE3/TR8 datasheet, 1N5358AE3/TR8 pinout, 1N5358AE3/TR8 application, or 1N5358AE3/TR8 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (4.7 A), voltage regulation (ΔVZ = 0.45 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown, with Zener voltage specified at 25 °C lead temperature and measured 40 ±10 ms after DC current application. Its low dynamic impedance (3.5 Ω) ensures stable regulation across 10–50% of IZM (75 mA).
The 1N5358AE3/TR8 uses void-free thermosetting epoxy encapsulation (UL94V-0), features cathode band polarity marking, and is rated for 260 °C soldering (10 s max). Thermal performance is defined for 3/8″ (10 mm) lead length from body, delivering 5 W steady-state power at TL < 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±10% - defines nominal regulation point under 50 mA test current; high-end tolerance yields VZM = 24.2 V for IZM calculation. |
| Power Dissipation | 5.0 W at TL < 25 °C - requires minimum 3/8″ lead length heat sinking to sustain full rating without derating. |
| Dynamic Impedance (ZZ) | 3.5 Ω - measured at 1 kHz with 10% AC ripple on 50 mA DC bias; determines output voltage variation under load changes. |
| Max Reverse Current (IR) | 0.5 μA at VR = 15.8 V - confirms sharp knee and low leakage below regulation threshold, critical for low-power standby circuits. |
| Surge Current (IZSM) | 4.7 A (8.3 ms half-sine) - supports transient overvoltage clamping in input protection stages without failure. |
| Voltage Regulation (ΔVZ) | 0.45 V - difference between VZ at 10% and 50% of IZM (75 mA); quantifies regulation linearity over operating current range. |
| Thermal Resistance | 25 °C/W junction-to-lead - enables thermal design using lead conduction; 85 °C/W junction-to-ambient on FR4 with 4 mm² copper pad. |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by colored band. Leads are annealed matte-tin plated (RoHS compliant, MIL-STD-750 solderable). Weight: 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded lead | Connected to circuit ground or lower potential node; forward voltage ≤1.2 V @ 1.0 A ensures low-loss biasing. |
| Cathode | Banded lead | Connected to regulated voltage node; must be held positive relative to anode to maintain Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard 1N53xxB series mechanical and electrical definitions for interchangeability and sourcing. |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to assembly, reducing manufacturing overhead. |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - eliminates need for special ESD handling during board assembly and testing. |
| High Surge Withstand | Rated for 4.7 A non-recurrent 8.3 ms surge - provides robust transient suppression without external TVS devices in many applications. |
| RoHS Compliant (e3) | Matte-tin plating meets EU RoHS Directive 2011/65/EU - supports compliance for global industrial and telecom end equipment. |
Applications
| DC Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
|
Use Scenario: Stabilizing reference voltage in linear regulator feedback networks or low-current bias supplies. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing precise 22 V reference with ±10% tolerance and low ΔVZ. Use Value: Maintains output stability across 10–50% of 75 mA IZM, enabling predictable error amplifier behavior in adjustable regulators. |
Use Scenario: Clamping transient spikes on 24 V DC bus lines in industrial control modules. IC Role / Device Role / Timing Role: Passive voltage clamp absorbing surge energy up to 4.7 A (8.3 ms) without degradation. Use Value: Eliminates need for additional TVS diodes in cost-sensitive designs where 22 V clamping threshold aligns with system OV threshold. |
| Temperature-Stable Reference | Programmable Voltage Threshold Detector |
|
Use Scenario: Generating stable bias points for op-amp comparators in wide-temperature-range sensor interfaces. IC Role / Device Role / Timing Role: Zener reference operating from –65 °C to +150 °C with minimal VZ drift due to low ZZ and tight thermal path. Use Value: Enables reliable trip-point setting across automotive under-hood or aerospace environments without active compensation. |
Use Scenario: Setting trigger threshold for discrete overvoltage detection in battery management systems. IC Role / Device Role / Timing Role: Shunt element that conducts when sensed voltage exceeds 22 V ±10%, activating downstream latch or shutdown logic. Use Value: Provides deterministic, passive threshold detection with sub-μA leakage below VR, minimizing quiescent current drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358B | Same 22 V nominal VZ, but ±5% tolerance (B suffix) and higher IZT (50 mA vs. same), identical package and thermal specs. | Higher voltage accuracy required in feedback loops where ±10% tolerance introduces excessive output variation. | Select 1N5358B when tighter regulation (±5%) is needed without changing layout or thermal design. |
| MMBZ5247BS | Surface-mount SOD-123 package, 20 V nominal VZ, ±5%, 20 mA IZT, 30 Ω ZZ - lower power (500 mW), no axial leads. | Used in space-constrained PCBs where through-hole mounting is impractical; not suitable for 5 W dissipation or high-surge roles. | Choose MMBZ5247BS only for low-power, high-density designs where 22 V is not mandatory and surge immunity is secondary. |
Compared with 1N5358AE3/TR8, the 1N5358B offers improved voltage accuracy for precision references, while the MMBZ5247BS trades power handling and surge capability for miniaturization - neither is pin-compatible, and both require layout or thermal redesign.
Availability
1N5358AE3/TR8 is available at Aetrix Electronics and suitable for DC power supply regulation, overvoltage protection circuits, temperature-stable reference generation, and programmable voltage threshold detection requiring stable component supply and long-term obsolescence support.
Supply support for 1N5358AE3/TR8 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N53xx series was designed as a JEDEC-standardized family of 5 W axial Zeners for general-purpose voltage regulation and protection in harsh-environment power systems, emphasizing thermal robustness and surge resilience.
FAQ
What is the Zener voltage tolerance of the 1N5358AE3/TR8?
The 1N5358AE3/TR8 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its actual regulation voltage falls between 19.8 V and 24.2 V at 25 °C lead temperature and 50 mA test current, as confirmed in the Microsemi datasheet's Electrical Characteristics table.
Does the 1N5358AE3/TR8 require dry packing before PCB assembly?
No, the 1N5358AE3/TR8 has moisture sensitivity level (MSL) 1 per IPC/JEDEC J-STD-020B, meaning it does not absorb sufficient moisture during ambient storage to require dry packing or baking prior to reflow or wave soldering - simplifying manufacturing logistics.
What is the maximum surge current rating for the 1N5358AE3/TR8?
The 1N5358AE3/TR8 is rated for a maximum non-recurrent surge current (IZSM) of 4.7 A, defined as the peak of an 8.3 ms half-sine waveform. This rating is validated under specified test conditions and supports transient clamping in industrial power rails without device failure.
Can the 1N5358AE3/TR8 be used in automotive under-hood applications?
Yes, the 1N5358AE3/TR8 is rated for operation from –65 °C to +150 °C and qualified for nonsensitivity to ESD per MIL-STD-750 Method 1020 - making it suitable for under-hood automotive applications where temperature extremes and electrical noise are present, provided thermal design accommodates 5 W dissipation.
What does the "e3" and "TR8" suffix indicate in 1N5358AE3/TR8?
The "e3" suffix denotes RoHS-compliant matte-tin lead plating per JEDEC standards, while "TR8" specifies tape-and-reel packaging per EIA-296, with 8 mm tape width and standard orientation - enabling automated pick-and-place assembly without manual handling or lead forming.
1N5358AE3/TR8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 15.8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- T-18
1N5358AE3/TR8 FAQ
1.How can I place an order for 1N5358AE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5358AE3/TR8 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 1N5358AE3/TR8 reliable?
The price and inventory of 1N5358AE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5358AE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5358AE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5358AE3/TR8 transactions.
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4.How is shipping managed for 1N5358AE3/TR8?
1N5358AE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5358AE3/TR8 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 1N5358AE3/TR8?
For technical support, including 1N5358AE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5358AE3/TR8 requirements.
6.How does Aetrix verify that 1N5358AE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5358AE3/TR8 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 1N5358AE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5358AE3/TR8?
All 1N5358AE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5358AE3/TR8, 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 1N5358AE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5358AE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5358AE3/TR8 Tags
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