My Inquiry
My Account
Microchip Technology 1N5358AE3/TR12
- Part No.:
- 1N5358AE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5358AE3/TR12.pdf
- Description:
- DIODE ZENER 22V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:3,625
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5358AE3/TR12 from Microsemi is a 5 W axial-leaded Zener diode with nominal regulation voltage of 22 V, ±10% tolerance (A suffix), 50 mA test current, 3.5 Ω dynamic impedance at IZT, and maximum reverse current of 0.5 μA at 17.6 V. It operates from –65°C to +150°C and is used for voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5358AE3/TR12 datasheet, 1N5358AE3/TR12 pinout, 1N5358AE3/TR12 application, or 1N5358AE3/TR12 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 precision voltage reference by maintaining stable reverse-bias conduction above its specified Zener breakdown voltage. Its 22 V nominal regulation point is defined at 50 mA test current with ±10% tolerance, and it exhibits low dynamic impedance (3.5 Ω) to minimize voltage variation under load changes.
The diode uses a void-free thermosetting epoxy case (UL94V-0), cathode band polarity marking, and is rated for 5.0 W steady-state dissipation at 25°C lead temperature (3/8" from body). Thermal resistance is 25 °C/W junction-to-lead and 85 °C/W junction-to-ambient on FR4 with specified copper pad geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V nominal, ±10% tolerance - defines stable regulation point for feedback or clamping circuits |
| Test Current (IZT) | 50 mA - operating point where VZ and dynamic impedance are specified |
| Dynamic Impedance (ZZ) | 3.5 Ω at IZT - low impedance ensures minimal output voltage shift with current variation |
| Max Reverse Current (IR) | 0.5 μA at 17.6 V - confirms sharp knee and low leakage below breakdown |
| Power Dissipation (PD) | 5.0 W at TL = 25°C - requires adequate heat sinking for full-power operation |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design using lead temperature as proxy for junction temp |
| Surge Current (IZSM) | 4.7 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free thermosetting epoxy, UL94V-0), cathode indicated by color band. Leads are annealed matte-tin plated (RoHS compliant, solderable per MIL-STD-750 Method 2026).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage side in reverse-bias regulation | Connected to circuit ground or lower potential node when used as shunt regulator |
| Cathode | Zener breakdown terminal / high-voltage side in reverse-bias regulation | Marked with band; connected to input or unregulated rail; carries regulated output voltage |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized mechanical dimensions and electrical behavior across qualified suppliers |
| Moisture sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Robust handling in standard manufacturing environments without special ESD controls |
| High surge current capability | Withstands 4.7 A non-recurrent 8.3 ms surges - suitable for transient suppression in industrial power rails |
| e3 RoHS-compliant plating | Matte-tin termination meets lead-free soldering requirements and ensures reliable wetting |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward converter feedback networks via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 22 V threshold to control PWM duty cycle. Use Value: Maintains ±10% output regulation across line/load/temperature with low ΔVZ (0.45 V) and stable ZZ. | Use Scenario: Clamping transient spikes on 24 V DC industrial bus lines exposed to inductive switching or lightning-induced surges. IC Role / Device Role / Timing Role: Passive crowbar element conducting only above 22 V to divert excess energy to ground. Use Value: Survives 4.7 A surge (8.3 ms) without degradation, enabling robust field reliability in harsh environments. |
| Programmable Voltage Reference | DC-DC Converter Output Sensing |
Use Scenario: Setting reference voltage for adjustable linear regulators or comparator thresholds in test equipment. IC Role / Device Role / Timing Role: Stable 22 V reference source with low temperature coefficient and minimal regulation drift. Use Value: Delivers consistent accuracy over –65°C to +150°C with 0.5 μA leakage at 17.6 V, reducing calibration drift. | Use Scenario: Monitoring regulated 24 V output in telecom DC-DC modules to trigger fault shutdown or status reporting. IC Role / Device Role / Timing Role: Precision sensing node converting analog voltage to logic-level signal via resistor divider + Zener clamp. Use Value: Enables accurate 22 V threshold detection with tight 3.5 Ω ZZ, minimizing sensing error under varying load conditions. |
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 22 V nominal VZ, but ±5% tolerance (B suffix) vs. ±10% (A suffix); identical package, thermal, and surge ratings | Higher precision regulation required where tighter voltage stability is critical | Select 1N5358B when ±5% tolerance is needed; 1N5358AE3/TR12 remains optimal for cost-sensitive designs accepting ±10% |
| MMBZ5247BS | Surface-mount SOD-123 package, 20 V nominal VZ, ±5%, 200 mW power rating - not a direct replacement due to power and package mismatch | Low-power portable electronics requiring space-constrained layout and reflow compatibility | Choose MMBZ5247BS only for PCB area-limited, low-current (<5 mA) applications; 1N5358AE3/TR12 is required for 5 W dissipation and axial mounting |
Compared with 1N5358B and MMBZ5247BS, the 1N5358AE3/TR12 provides the only combination of 5 W power handling, axial-leaded T-18 package, and ±10% 22 V regulation - making it uniquely suited for industrial power supply feedback and surge-clamp roles where thermal mass and lead-forming flexibility matter.
Availability
1N5358AE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, telecom DC-DC converters, and automotive body control modules requiring stable component supply and long-term obsolescence management.
Supply support for 1N5358AE3/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, RF, and discrete components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized voltage regulation in high-temperature, high-surge environments - emphasizing thermal robustness, JEDEC-standardized form factor, and military-grade screening options.
FAQ
What is the Zener voltage tolerance of the 1N5358AE3/TR12?
The 1N5358AE3/TR12 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. Its nominal regulation voltage is 22 V, meaning the actual measured VZ falls between 19.8 V and 24.2 V at 50 mA test current and 25°C lead temperature. This tolerance is confirmed in the manufacturer's electrical characteristics table and applies across the full operating temperature range.
Is the 1N5358AE3/TR12 RoHS compliant?
Yes, the 1N5358AE3/TR12 is RoHS compliant, as indicated by the "e3" suffix. Its leads feature annealed matte-tin plating that meets RoHS requirements and is solderable per MIL-STD-750 Method 2026. The device uses void-free thermosetting epoxy encapsulation rated UL94V-0 and requires no dry pack due to IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
What is the maximum surge current rating for the 1N5358AE3/TR12?
The 1N5358AE3/TR12 has a maximum non-recurrent surge current (IZSM) of 4.7 A, specified for an 8.3 ms half-sine waveform. This rating is validated under standardized test conditions and reflects the device's ability to absorb transient energy without parametric shift or failure - critical for overvoltage protection in industrial power systems.
How does the thermal resistance of the 1N5358AE3/TR12 affect PCB layout?
The 1N5358AE3/TR12 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W, meaning lead temperature directly correlates with junction temperature. For reliable 5 W operation, leads must be kept at ≤25°C - achieved by minimizing thermal path resistance via wide copper traces, thermal vias, or external heatsinking. Its junction-to-ambient rating (85 °C/W) assumes specific FR4 board layout (4 mm² pads, 1 mm trace width, 25 mm length).
Can the 1N5358AE3/TR12 be used in place of the 1N5358B?
The 1N5358AE3/TR12 can be used in place of the 1N5358B only where ±10% Zener voltage tolerance is acceptable. Both share identical package, power rating, surge current, and thermal specifications, but the 1N5358B offers tighter ±5% tolerance. Substitution requires verification that system regulation margins accommodate the wider 19.8–24.2 V range of the 1N5358AE3/TR12.
1N5358AE3/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:
- ±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/TR12 FAQ
1.How can I place an order for 1N5358AE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5358AE3/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 1N5358AE3/TR12 reliable?
The price and inventory of 1N5358AE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5358AE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5358AE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5358AE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5358AE3/TR12?
1N5358AE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5358AE3/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 1N5358AE3/TR12?
For technical support, including 1N5358AE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5358AE3/TR12 requirements.
6.How does Aetrix verify that 1N5358AE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5358AE3/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 1N5358AE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5358AE3/TR12?
All 1N5358AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5358AE3/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 1N5358AE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5358AE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5358AE3/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…
