My Inquiry
My Account
Microchip Technology 1N5358E3/TR12
- Part No.:
- 1N5358E3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5358E3/TR12.pdf
- Description:
- DIODE ZENER 22V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:6,434
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5358E3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 22 V, ±5% tolerance (B-suffix equivalent), 3.5 Ω maximum dynamic impedance at 50 mA test current, and 75 mA maximum regulator current when adequately heat-sunk. It operates across -65°C to +150°C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5358E3/TR12 datasheet, 1N5358E3/TR12 pinout, 1N5358E3/TR12 application, or 1N5358E3/TR12 equivalent, key selection criteria include Zener voltage stability under varying load current, thermal resistance (25 °C/W junction-to-lead), surge current rating (4.7 A), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse-biased breakdown mode. Its 22 V nominal Zener voltage is specified at 50 mA test current (IZT), with voltage regulation (ΔVZ) of 0.45 V between 10% and 50% of IZM and dynamic impedance (ZZ) ≤3.5 Ω under those conditions.
The 1N5358E3/TR12 features low thermal resistance (25 °C/W junction-to-lead at 10 mm lead length), enabling stable regulation at high DC currents when mounted with adequate heat sinking. It meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity and withstands 8.3 ms half-sine surge currents up to 4.7 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V nominal at 50 mA; regulates within ±5% (20.9–23.1 V) across temperature and current range |
| Power Dissipation | 5.0 W at 25°C lead temperature; derates linearly above 25°C per Figure 1 |
| Dynamic Impedance (ZZ) | ≤3.5 Ω at IZT = 50 mA; ensures minimal output voltage shift under load transients |
| Max Regulator Current (IZM) | 75 mA at TL = 25°C; defines safe continuous reverse-bias current with proper heatsinking |
| Surge Current (IZSM) | 4.7 A peak (8.3 ms half-sine); supports transient overvoltage clamping without failure |
| Thermal Resistance | 25 °C/W junction-to-lead (3/8″ lead length); enables predictable junction temperature rise under DC load |
| Reverse Leakage | ≤0.5 μA at VR = 17.6 V; guarantees low standby power loss in high-impedance bias networks |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free thermosetting epoxy, UL94V-0 rated), cathode indicated by band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to system ground or lower-potential rail; carries forward current up to 1.0 A (VF ≤1.2 V) |
| Cathode | Zener breakdown terminal / Regulated output node | Banded end; connected to unregulated input; maintains 22 V reference relative to anode under reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant construction | e3 suffix confirms lead-free matte-tin plating and halogen-free epoxy, compliant with EU Directive 2011/65/EU |
| JEDEC-registered Zener series | 1N5358E3/TR12 adheres to JEDEC standard 1N53xxB family mechanical and electrical specifications |
| Level 1 moisture sensitivity | No dry pack required; safe for standard SMT reflow or manual assembly without baking |
| High surge current capability | Withstands 4.7 A non-repetitive 8.3 ms surges-suitable for input-stage transient suppression |
| Stable voltage regulation | ΔVZ = 0.45 V between 10% and 50% of IZM ensures tight reference stability under variable load |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stabilizing feedback reference in isolated DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 22 V bias to optocoupler LED or TL431 reference input. Use Value: Maintains ±5% output voltage accuracy across line/load/temperature variations due to low ΔVZ and stable ZZ. | Use Scenario: Clamping induced transients on 24 V DC control bus in PLC backplanes. IC Role / Device Role / Timing Role: Two-terminal crowbar element diverting surge energy to ground before downstream ICs experience overvoltage. Use Value: Absorbs 4.7 A surge peaks without degradation, protecting 24 V logic interfaces rated to 30 V absolute max. |
| Programmable Logic Controller I/O Module | Test Equipment Reference Source |
Use Scenario: Providing stable bias for analog input channel scaling resistors in modular I/O cards. IC Role / Device Role / Timing Role: Precision shunt reference establishing known voltage divider ratio for 0–10 V analog inputs. Use Value: Delivers 22 V reference with <0.45 V regulation drift across -40°C to +85°C ambient, ensuring ADC linearity. | Use Scenario: Serving as calibration reference in portable multimeter front-end voltage dividers. IC Role / Device Role / Timing Role: Fixed-voltage anchor point for autoranging attenuator networks requiring traceable 22 V reference. Use Value: Enables ±0.5% full-scale accuracy via low leakage (<0.5 μA) and tight tolerance, reducing calibration drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358B | Same 22 V, ±5% Zener voltage and 5 W rating, but SnPb lead finish (non-RoHS) | Not suitable for RoHS-compliant production; requires exemption documentation | Select 1N5358E3/TR12 for new designs requiring lead-free compliance and tape-and-reel packaging |
| SMBJ5358B | Surface-mount SMB package; identical 22 V/±5%/5 W specs but higher thermal resistance (junction-to-ambient ≈ 85 °C/W) | Requires PCB layout change; less effective heat dissipation without large copper pads | Choose SMBJ5358B only when board space constraints prohibit axial-leaded components |
Compared with 1N5358B and SMBJ5358B, the 1N5358E3/TR12 offers RoHS compliance and optimized thermal performance in axial form factor-ideal for through-hole power supply references where lead-based solder is prohibited and thermal management relies on chassis or heatsink mounting.
Availability
1N5358E3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, programmable logic controller I/O modules, and test equipment reference circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5358E3/TR12 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 Zener series was designed for ruggedized voltage regulation in harsh-environment power systems-emphasizing surge resilience, wide temperature operation, and JEDEC-standard mechanical reliability.
FAQ
What is the Zener voltage tolerance of the 1N5358E3/TR12?
The 1N5358E3/TR12 has a nominal Zener voltage of 22 V with ±5% tolerance, consistent with the "B" suffix designation in the 1N53xxB family. This means its actual regulation voltage falls between 20.9 V and 23.1 V at 50 mA test current and 25°C lead temperature, as confirmed in the manufacturer's electrical characteristics table.
Does the 1N5358E3/TR12 require dry packing before use?
No, the 1N5358E3/TR12 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1 rating, meaning it is safe for standard assembly processes-including wave soldering and hand soldering-without prior baking or humidity-controlled storage.
What is the maximum steady-state power dissipation for the 1N5358E3/TR12 on a standard PCB?
When mounted on an FR4 PCB with 1 oz copper, 4 mm² pads, and 1 mm × 25 mm traces, the 1N5358E3/TR12 delivers 1.47 W steady-state power at 25°C ambient. This is derived from its 85 °C/W junction-to-ambient thermal resistance and must be derated linearly above 25°C per Figure 1 in the datasheet.
Can the 1N5358E3/TR12 be used in place of the 1N5358B?
Yes, the 1N5358E3/TR12 is functionally interchangeable with the 1N5358B for voltage regulation purposes, sharing identical electrical specs (22 V, ±5%, 5 W). However, the 1N5358E3/TR12 uses RoHS-compliant matte-tin plating versus SnPb on the 1N5358B, making it suitable for lead-free manufacturing environments.
What is the surge current rating of the 1N5358E3/TR12 and how is it defined?
The 1N5358E3/TR12 has a peak non-repetitive surge current rating of 4.7 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating enables reliable transient suppression in 24 V industrial systems without device failure, provided surge duty cycle remains low and average power stays within 5 W limits.
1N5358E3/TR12 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:
- ±20%
- 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
1N5358E3/TR12 FAQ
1.How can I place an order for 1N5358E3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5358E3/TR12 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 1N5358E3/TR12 reliable?
The price and inventory of 1N5358E3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5358E3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5358E3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5358E3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5358E3/TR12?
1N5358E3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5358E3/TR12 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 1N5358E3/TR12?
For technical support, including 1N5358E3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5358E3/TR12 requirements.
6.How does Aetrix verify that 1N5358E3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5358E3/TR12 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 1N5358E3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5358E3/TR12?
All 1N5358E3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5358E3/TR12, 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 1N5358E3/TR12 part is unused and in its original packaging.
Return procedure for 1N5358E3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5358E3/TR12 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
