Microchip Technology 1N5358BE3/TR13
- Part No.:
- 1N5358BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5358BE3/TR13.pdf
- Description:
- DIODE ZENER 22V 5W T18
- Quantity:
- Payment:

- Shipping:

Inventory:9,700
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Product details
Overview
1N5358BE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 22 V, ±5% tolerance (B suffix), 3.5 Ω maximum dynamic impedance at 50 mA test current, and 75 mA maximum regulator current when adequately heat-sunk. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5358BE3/TR13 datasheet, 1N5358BE3/TR13 pinout, 1N5358BE3/TR13 application, or 1N5358BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current rating (4.7 A), reverse leakage (<0.5 µA at 17.6 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage reference where reverse-biased operation maintains stable output voltage across wide current (50 mA to 75 mA) and temperature (–65 °C to +150 °C) ranges. Its low dynamic impedance (3.5 Ω) ensures minimal voltage variation under load changes, and its 25 °C/W junction-to-lead thermal resistance enables reliable 5 W dissipation with 3/8″ lead length heat sinking.
The 1N5358BE3/TR13 uses a void-free thermosetting epoxy T-18 package rated UL94V-0, with cathode indicated by band and polarity requiring banded end positive. It meets MIL-STD-750 Method 1020 for ESD insensitivity and supports tape-and-reel packaging (TR13 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±5% - precise regulation point for feedback loops and reference circuits |
| Test Current (IZT) | 50 mA - standardized bias point for measuring VZ and dynamic impedance |
| Dynamic Impedance (ZZ) | 3.5 Ω max - low AC resistance ensures stable voltage under varying load currents |
| Max Regulator Current (IZM) | 75 mA - maximum continuous DC current before thermal derating begins |
| Surge Current (IZSM) | 4.7 A - peak non-repetitive half-sine (8.3 ms) capability for transient suppression |
| Voltage Regulation (ΔVZ) | 0.45 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Thermal Resistance (RθJL) | 25 °C/W - junction-to-lead value enabling 5 W dissipation with minimal temperature rise at 3/8″ lead length |
Pinout & Package
Package: Axial-leaded T-18 plastic case (UL94V-0), void-free transfer-molded thermosetting epoxy, 0.7 g weight, cathode marked by band. Leads are annealed matte-tin plated (RoHS-compliant, e3 suffix), solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit ground or lower-potential node in reverse-bias regulation configuration |
| Cathode | Zener regulation terminal / Output reference node | Banded end; connected to regulated voltage rail; must be held at higher potential than anode during operation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures industry-standard mechanical and electrical compatibility across 1N53xxB series |
| ±5% voltage tolerance (B suffix) | Enables tighter regulation than ±10% (A) or ±20% (no suffix) variants in cost-sensitive designs |
| Moisture sensitivity Level 1 | No dry pack required prior to PCB assembly-reduces handling overhead and moisture-related defects |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during board assembly and testing |
| RoHS-compliant (e3 suffix) | Meets global environmental compliance requirements without performance trade-offs |
Applications
| Industrial Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing output voltage in isolated DC-DC converters using optocoupler feedback networks. IC Role / Device Role / Timing Role: Zener reference providing precise 22 V threshold to TL431 shunt regulator or optocoupler LED drive circuit. Use Value: Maintains ±1% output regulation over line/load/temperature with 3.5 Ω dynamic impedance limiting error contribution. | Use Scenario: Protecting microcontroller I/O pins from transient surges on 24 V industrial fieldbus lines. IC Role / Device Role / Timing Role: Shunt clamp absorbing energy from inductive kickback or EFT bursts above 22 V. Use Value: Withstands 4.7 A surge (8.3 ms half-sine) while holding clamped voltage within 0.45 V regulation window. |
| Programmable Voltage Reference | Temperature-Stable Bias Generator |
Use Scenario: Generating fixed 22 V reference for analog front-end calibration in test equipment. IC Role / Device Role / Timing Role: Primary voltage reference source feeding precision DACs or ADC reference inputs. Use Value: Delivers <0.5 µA reverse leakage at 17.6 V, minimizing reference current error in high-impedance divider networks. | Use Scenario: Establishing stable bias points for op-amp input stages operating across –40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Temperature-compensated Zener element in bias network with low ΔVZ/°C drift. Use Value: Operates reliably from –65 °C to +150 °C with 25 °C/W thermal resistance enabling stable bias under sustained 5 W dissipation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358BRLG | Same 22 V ±5%, 5 W rating, but in bulk packaging (no TR13 tape/reel); identical electrical specs and T-18 package | No tape-and-reel support-unsuitable for automated SMT placement | Select 1N5358BE3/TR13 for high-volume pick-and-place assembly; choose 1N5358BRLG for manual prototyping or low-volume hand-soldering |
| MMBZ5248BS | Surface-mount SOD-323 package, 22 V ±5%, but only 0.2 W power rating and 200 Ω dynamic impedance | Limited to low-power signal-level clamping-not suitable for 5 W regulation or surge absorption | Use MMBZ5248BS only in space-constrained, low-current applications; retain 1N5358BE3/TR13 for power-level regulation requiring thermal mass and surge robustness |
Compared with 1N5358BRLG and MMBZ5248BS, the 1N5358BE3/TR13 uniquely combines tape-and-reel automation readiness, 5 W power handling, 3.5 Ω dynamic impedance, and industrial-grade thermal performance in an axial-leaded form factor-making it optimal for production power supply and protection circuits.
Availability
1N5358BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, programmable voltage references, and temperature-stable bias generators requiring stable component supply and full RoHS compliance.
Supply support for 1N5358BE3/TR13 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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized 5 W voltage regulation in harsh-environment power systems-emphasizing thermal robustness, surge resilience, and long-term stability under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N5358BE3/TR13?
The 1N5358BE3/TR13 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its nominal 22 V regulation point falls within 20.9 V to 23.1 V at 50 mA test current and 25 °C lead temperature. The tolerance remains valid across its full operating temperature range of –65 °C to +150 °C, as confirmed in Microsemi's official 1N5333B–1N5388B datasheet Rev D.
Does the 1N5358BE3/TR13 require dry packing before PCB assembly?
No, the 1N5358BE3/TR13 does not require dry packing before PCB assembly. Its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1, meaning it can be stored indefinitely at ≤30 °C/60% RH without baking. This eliminates moisture-related popcorning risks during reflow and reduces handling overhead in manufacturing environments.
What is the maximum surge current rating for the 1N5358BE3/TR13?
The 1N5358BE3/TR13 has a maximum non-repetitive surge current (IZSM) of 4.7 A, specified as the peak value of an 8.3 ms half-sine waveform. This rating enables effective transient suppression in industrial control systems exposed to inductive switching or lightning-induced surges, provided the device is mounted with adequate thermal mass and lead length.
How does the thermal resistance of the 1N5358BE3/TR13 affect its power dissipation?
The 1N5358BE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when leads are trimmed to 3/8″ (10 mm) from the body. At 25 °C ambient, this allows full 5 W dissipation; above that temperature, power must be linearly derated-e.g., at 75 °C lead temperature, maximum power drops to 3.75 W. This parameter directly governs heatsinking requirements in high-reliability power designs.
Is the 1N5358BE3/TR13 compatible with lead-free reflow processes?
Yes, the 1N5358BE3/TR13 is compatible with lead-free reflow processes. Its matte-tin plating (e3 suffix) meets RoHS requirements and supports soldering at 260 °C for up to 10 seconds, aligning with standard Pb-free reflow profiles. The T-18 epoxy body is UL94V-0 rated and withstands repeated thermal excursions without delamination or cracking.
1N5358BE3/TR13 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:
- ±5%
- 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
1N5358BE3/TR13 FAQ
1.How can I place an order for 1N5358BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5358BE3/TR13 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 1N5358BE3/TR13 reliable?
The price and inventory of 1N5358BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5358BE3/TR13 is usually 5 days.
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Once your 1N5358BE3/TR13 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 1N5358BE3/TR13?
For technical support, including 1N5358BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5358BE3/TR13 requirements.
6.How does Aetrix verify that 1N5358BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5358BE3/TR13 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 1N5358BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5358BE3/TR13?
All 1N5358BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5358BE3/TR13, 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 1N5358BE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5358BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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