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Microchip Technology 1N5365AE3/TR12
- Part No.:
- 1N5365AE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5365AE3/TR12.pdf
- Description:
- DIODE ZENER 36V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:3,661
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Product details
Overview
1N5365AE3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 36 V, ±10% tolerance (A suffix), 30 mA test current, and 11 Ω maximum dynamic impedance at IZT. It operates from –65°C to +150°C and is RoHS-compliant (e3 suffix), used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5365AE3/TR12 datasheet, 1N5365AE3/TR12 pinout, 1N5365AE3/TR12 application, or 1N5365AE3/TR12 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (160 A), and compliance with MIL-PRF-19500 screening options when prefixed.
Technical Context
This device functions as a two-terminal voltage regulator in reverse-bias mode, maintaining stable output voltage across wide operating current (10–160 mA) and temperature ranges. Its low dynamic impedance (11 Ω) and tight voltage regulation (ΔVZ = 3.3 V) ensure minimal deviation under load transients.
Designed for through-hole mounting with T-18 axial package, it features moisture sensitivity level 1 (no dry pack required), UL94V-0 epoxy encapsulation, and cathode band polarity marking. Thermal performance is specified at 3/8″ lead length (25 °C/W) or FR4 board mount (85 °C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±10% - defines regulated output voltage under nominal test conditions (IZT = 30 mA) |
| Power Dissipation (PD) | 5.0 W at TL = 25°C - maximum steady-state power before thermal derating begins |
| Dynamic Impedance (ZZ) | 11 Ω max @ IZT - determines voltage stability against current variation in regulation region |
| Max Reverse Current (IR) | 0.5 μA @ VR = 25.2 V - leakage threshold defining off-state integrity below breakdown |
| Surge Current (IZSM) | 160 A (8.3 ms half-sine) - peak non-repetitive current handling capability during transient events |
| Voltage Regulation (ΔVZ) | 3.3 V - difference between VZ measured at 10% and 50% of IZM, indicating knee sharpness |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design with discrete heat sinking at 3/8″ lead length |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL standard; void-free UL94V-0 epoxy body; cathode indicated by band; leads plated with RoHS-compliant matte tin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse bias applied across anode–cathode to activate regulation |
| Cathode | Zener breakdown terminal / regulated output reference | Banded end; connected to unregulated input rail; supplies stable 36 V reference to feedback networks or clamp circuits |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions, electrical behavior, and interchangeability across qualified suppliers |
| ±10% voltage tolerance (A suffix) | Supports cost-optimized designs where tighter regulation is not required, reducing BOM cost vs. ±1% or ±2% variants |
| RoHS-compliant (e3 suffix) | Meets global environmental directives without lead or hazardous substances, enabling export to EU, China, and other regulated markets |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints, simplifying SMT line integration and inventory management |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for special ESD workstations during assembly or repair |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback loop using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Provides precise 36 V reference to TL431-like shunt regulator or directly biases optocoupler LED. Use Value: Maintains ±10% output accuracy over line/load/temperature with 11 Ω dynamic impedance minimizing feedback error. | Use Scenario: Clamps transient overvoltage on 24 V DC bus caused by inductive kickback or lightning surge. IC Role / Device Role / Timing Role: Acts as passive crowbar element, conducting above 36 V to divert energy into series resistor or fuse. Use Value: Withstands 160 A surge (8.3 ms) and holds clamping voltage within 3.3 V window, protecting downstream MOSFETs and controllers. |
| Industrial Sensor Excitation | Programmable Reference Source |
Use Scenario: Supplies stable excitation voltage to resistive bridge sensors (e.g., strain gauges) in harsh factory environments. IC Role / Device Role / Timing Role: Functions as low-noise, temperature-stable voltage source replacing active regulators where quiescent current must be minimized. Use Value: Delivers 36 V ±10% over –65°C to +150°C with <0.5 μA leakage, ensuring sensor offset stability without added complexity. | Use Scenario: Sets upper threshold in adjustable voltage monitor circuit using comparator and potentiometer divider. IC Role / Device Role / Timing Role: Serves as fixed reference node against which divided input voltage is compared for trip-point detection. Use Value: Low ΔVZ (3.3 V) and 11 Ω ZZ reduce hysteresis uncertainty and improve threshold repeatability across operating conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | Same 36 V nominal, but ±5% tolerance (B suffix) and 8 Ω ZZ - tighter regulation and lower impedance | Preferred where higher accuracy is needed in feedback or reference circuits; requires tighter voltage margin allocation | Select 1N5365B when system-level voltage tolerance demands <±5% regulation stability |
| MMBZ5245BS-7-F | Surface-mount SOD-123 package, 36 V ±5%, 500 mW rating - smaller footprint but lower power and surge capability | Suitable for space-constrained PCBs with lower power requirements; not rated for 5 W continuous dissipation | Choose MMBZ5245BS-7-F only for low-power signal-level referencing where thermal mass and surge immunity are secondary |
Compared with 1N5365B and MMBZ5245BS-7-F, the 1N5365AE3/TR12 offers the highest surge robustness (160 A), lowest thermal resistance (25 °C/W), and axial-leaded reliability for high-power industrial designs - but trades voltage precision for cost and ruggedness.
Availability
1N5365AE3/TR12 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, industrial sensor excitation, and programmable reference sources requiring stable component supply across extended temperature and surge stress conditions.
Supply support for 1N5365AE3/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 radiation-hardened components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for robust, high-power voltage regulation in mission-critical power systems where thermal resilience, surge immunity, and long-term stability outweigh compactness or ultra-fine voltage tolerance.
FAQ
What is the Zener voltage tolerance of the 1N5365AE3/TR12?
The 1N5365AE3/TR12 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its actual regulation voltage falls between 32.4 V and 39.6 V at 30 mA test current and 25°C lead temperature. The tolerance is confirmed in Microsemi's official datasheet revision D (2008), Table "ELECTRICAL CHARACTERISTICS", row for 1N5365B/A/D variants.
Does the 1N5365AE3/TR12 require dry packing before PCB assembly?
No, the 1N5365AE3/TR12 does not require dry packing. It carries moisture sensitivity level (MSL) 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life and may be stored and assembled without baking or humidity-controlled packaging. This is explicitly stated in the "FEATURES" section of the Microsemi datasheet.
What is the maximum surge current rating for the 1N5365AE3/TR12?
The 1N5365AE3/TR12 is rated for a maximum non-repetitive surge current (IZSM) of 160 A, defined as the peak value of an 8.3 ms half-sine waveform. This value appears in the "ELECTRICAL CHARACTERISTICS" table under the "MAXIMUM SURGE CURRENT (IZSM)" column for the 1N5365B entry, applicable to all suffix variants including A.
How is polarity marked on the 1N5365AE3/TR12?
The 1N5365AE3/TR12 uses a cathode band marking: a single colored band near one end of the axial body identifies the cathode terminal. Per the datasheet "MECHANICAL AND PACKAGING" section, the diode must be operated with the banded end positive relative to the opposite (anode) end to achieve Zener breakdown and regulation.
Is the 1N5365AE3/TR12 RoHS compliant?
Yes, the 1N5365AE3/TR12 is RoHS compliant, as confirmed by the "e3" suffix in its full part number. The datasheet states "RoHS Compliant devices available by adding e3 suffix", and the "MECHANICAL AND PACKAGING" section specifies "RoHS Compliant annealed matte-Tin plating" for terminals.
1N5365AE3/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):
- 36 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 25.9 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
1N5365AE3/TR12 FAQ
1.How can I place an order for 1N5365AE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5365AE3/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 1N5365AE3/TR12 reliable?
The price and inventory of 1N5365AE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5365AE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5365AE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5365AE3/TR12 transactions.
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4.How is shipping managed for 1N5365AE3/TR12?
1N5365AE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5365AE3/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 1N5365AE3/TR12?
For technical support, including 1N5365AE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5365AE3/TR12 requirements.
6.How does Aetrix verify that 1N5365AE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5365AE3/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 1N5365AE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5365AE3/TR12?
All 1N5365AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5365AE3/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 1N5365AE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5365AE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5365AE3/TR12 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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SMAZ12-13-F
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