Microchip Technology 1N5360AE3/TR12
- Part No.:
- 1N5360AE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5360AE3/TR12.pdf
- Description:
- DIODE ZENER 25V 5W T18
- Quantity:
- Payment:

- Shipping:

Inventory:2,794
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Product details
Overview
1N5360AE3/TR12 from Microsemi is a 25 V, ±10% tolerance, 5 W axial-leaded silicon Zener diode optimized for voltage regulation in power supply feedback loops, overvoltage protection circuits, and precision reference applications requiring stable breakdown under high surge stress. It operates from –65°C to +150°C with 4.0 Ω dynamic impedance at 50 mA test current and supports up to 110 mA maximum Zener current when adequately heat-sunk.
For engineers reviewing the 1N5360AE3/TR12 datasheet, 1N5360AE3/TR12 pinout, 1N5360AE3/TR12 application, or 1N5360AE3/TR12 equivalent, key selection criteria include its ±10% voltage tolerance (A suffix), RoHS-compliant matte-tin plating (e3), tape-and-reel packaging (TR12), 25 V nominal Zener voltage, and 5 W steady-state power rating at lead temperature ≤25°C.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse-biased breakdown mode. Its Zener voltage is specified at 25°C with 50 mA test current (IZT), and it exhibits 4.0 Ω dynamic impedance (ZZ) under those conditions, ensuring low sensitivity to current variation across its regulation range.
The 1N5360AE3/TR12 delivers 110 mA maximum Zener current (IZM) and withstands 190 A non-recurrent surge current (IZSM) in an 8.3 ms half-sine waveform - critical for transient suppression in industrial power rails. Its thermal resistance is 25 °C/W junction-to-lead at 3/8″ (10 mm) lead length, enabling reliable operation with minimal heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25 V ±10% - defines regulated output voltage in feedback or clamp circuits |
| Test Current (IZT) | 50 mA - standard bias point for VZ measurement and impedance characterization |
| Dynamic Impedance (ZZ) | 4.0 Ω @ IZT - low impedance ensures minimal voltage shift under load current changes |
| Max Zener Current (IZM) | 110 mA - maximum continuous DC current before thermal runaway at TL ≤25°C |
| Surge Current (IZSM) | 190 A (8.3 ms half-sine) - enables robust transient suppression without failure |
| Power Dissipation | 5.0 W @ TL = 25°C - sets thermal design boundary for PCB trace width and copper area |
| Operating Temperature | –65°C to +150°C - supports deployment in automotive under-hood and industrial control environments |
Pinout & Package
Package: Axial-leaded T-18 plastic case (Void-free transfer-molded thermosetting epoxy, UL94V-0 rated); cathode indicated by band; leads plated with RoHS-compliant annealed matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference terminal | Connected to lower-potential node (e.g., ground or return path) in regulation circuit |
| Cathode | Regulated output terminal | Banded end; connected to higher-potential node (e.g., supply rail or error amplifier input) |
Key Features
| Feature | Design Value |
|---|---|
| ±10% Zener voltage tolerance (A suffix) | Enables cost-effective regulation where tight voltage accuracy is not required |
| RoHS-compliant matte-tin plating (e3) | Ensures solderability and reliability without lead-based finishes |
| Tape-and-reel packaging (TR12) | Supports automated SMT placement despite axial-leaded form factor |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints during assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-safe workstations |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference diode providing precise 25 V threshold for TL431-like shunt regulator interface. Use Value: Maintains ±10% output regulation across line/load transients while surviving 190 A surge events on primary-side surges. | Use Scenario: Clamps 24 V DC bus against lightning-induced transients in PLC I/O modules. IC Role / Device Role / Timing Role: Two-terminal voltage clamp absorbing energy from inductive kickback or EFT bursts. Use Value: Withstands repeated 190 A, 8.3 ms surges without parameter drift or catastrophic failure. |
| Programmable Voltage Reference | DC-DC Converter Trim Circuit |
Use Scenario: Sets adjustable output of LM317-based lab bench supply with coarse 25 V baseline. IC Role / Device Role / Timing Role: Fixed-voltage reference element in resistor-divider network defining output setpoint. Use Value: Provides stable 25 V reference with <0.55 V regulation delta (ΔVZ) from 10% to 50% of IZM. | Use Scenario: Trims output of 28 V telecom DC-DC module to compensate for sense-resistor tolerance. IC Role / Device Role / Timing Role: Precision clamp limiting trim voltage applied to feedback pin of controller IC. Use Value: Ensures trim range stays within safe bounds using 25 V ±10% clamping with 4.0 Ω dynamic impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5360B | Same 25 V nominal, but ±5% tolerance (B suffix) and no e3/RoHS marking | Used where tighter voltage accuracy is required and lead-free compliance is not mandated | Select 1N5360B if ±5% regulation is needed and legacy tin-lead assembly is acceptable |
| SMBJ5360B | Surface-mount SMB package, same 25 V ±5%, 5 W rating, but different thermal profile (junction-to-ambient 85 °C/W) | Replaces axial-leaded version in space-constrained or fully automated SMT designs | Select SMBJ5360B only when board layout allows surface-mount footprint and thermal management accommodates higher RθJA |
Compared with 1N5360AE3/TR12, the 1N5360B offers tighter voltage tolerance at the cost of RoHS compliance, while SMBJ5360B provides identical electrical performance in a surface-mount package - but requires re-evaluation of thermal derating and PCB copper area due to higher junction-to-ambient resistance.
Availability
1N5360AE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, telecom DC-DC modules, and programmable lab equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5360AE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized voltage regulation in harsh-environment power systems - emphasizing surge survivability, wide temperature operation, and moisture-insensitive packaging.
FAQ
What is the Zener voltage tolerance of the 1N5360AE3/TR12?
The 1N5360AE3/TR12 has a Zener voltage tolerance of ±10%, denoted by the "A" suffix in its part number. This means its measured breakdown voltage at 50 mA test current falls between 22.5 V and 27.5 V at 25°C. The tolerance is guaranteed across the full operating temperature range of –65°C to +150°C, and the device maintains regulation stability with ΔVZ ≤ 0.55 V from 10% to 50% of its maximum Zener current.
Does the 1N5360AE3/TR12 require dry packing before PCB assembly?
No, the 1N5360AE3/TR12 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity Level 1 classification, meaning it can be stored indefinitely at ambient conditions without desiccant or dry cabinet requirements. This simplifies inventory handling and eliminates floor-life tracking during SMT assembly - a direct benefit of its void-free epoxy encapsulation and robust leadframe plating.
What is the maximum surge current rating for the 1N5360AE3/TR12?
The 1N5360AE3/TR12 is rated for a maximum non-recurrent surge current (IZSM) of 190 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without degradation, making it suitable for protecting sensitive downstream circuitry in industrial motor drives and telecom power interfaces where lightning or switching surges occur.
How is the 1N5360AE3/TR12 marked and polarized?
The 1N5360AE3/TR12 is marked with its full part number on the body and features a cathode band near one lead end. The banded lead is the cathode and must be connected to the higher-potential node (e.g., positive rail or feedback node) when used in reverse-bias regulation mode. The unmarked lead is the anode and connects to the lower-potential node (e.g., ground or return path). Polarity misconnection will forward-bias the device and cause excessive current flow.
Can the 1N5360AE3/TR12 be used in surface-mount designs?
The 1N5360AE3/TR12 itself is an axial-leaded through-hole device and is not suitable for direct surface-mount placement. However, Microsemi offers a surface-mount equivalent: the SMBJ5360B in SMB package, which shares the same 25 V ±5% Zener voltage and 5 W rating. For SMT compatibility, engineers should select SMBJ5360B - not 1N5360AE3/TR12 - and verify thermal layout against its higher junction-to-ambient thermal resistance (85 °C/W).
1N5360AE3/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):
- 25 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 18 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
1N5360AE3/TR12 FAQ
1.How can I place an order for 1N5360AE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5360AE3/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 1N5360AE3/TR12 reliable?
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6.How does Aetrix verify that 1N5360AE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5360AE3/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 1N5360AE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5360AE3/TR12?
All 1N5360AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5360AE3/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 1N5360AE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5360AE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5360AE3/TR12 Tags

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