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Microchip Technology 1N5365AE3/TR8
- Part No.:
- 1N5365AE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5365AE3/TR8.pdf
- Description:
- DIODE ZENER 36V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:9,332
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Product details
Overview
1N5365AE3/TR8 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 dynamic impedance at IZT. 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 1N5365AE3/TR8 datasheet, 1N5365AE3/TR8 pinout, 1N5365AE3/TR8 application, or 1N5365AE3/TR8 equivalent, key selection criteria include Zener voltage tolerance, maximum surge current (160 A), thermal resistance (25 °C/W junction-to-lead), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown. Its regulation performance is defined by ΔVZ = 3.3 V (voltage change between 10% and 50% of IZM) and maintains stable output across 1.0–160 A surge current pulses (8.3 ms half-sine).
It features low thermal resistance (25 °C/W) when mounted with 3/8″ lead length, enabling high steady-state current (IZM = 160 mA) at TL < 25 °C. The cathode band polarity and UL94V-0 epoxy case ensure reliable PCB mounting and safety compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±10% - defines regulated output level under specified test conditions |
| Test Current (IZT) | 30 mA - current at which VZ is measured; sets baseline operating point |
| Dynamic Impedance (ZZ) | 11 Ω - small-signal AC resistance affecting regulation stability vs. load changes |
| Max Surge Current (IZSM) | 160 A - peak non-repetitive current capability for transient suppression |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C - thermal limit requiring adequate heatsinking for sustained operation |
| Thermal Resistance (RθJL) | 25 °C/W - junction-to-lead thermal path efficiency with 10 mm lead length |
| Operating Temperature | −65 °C to +150 °C - wide range supports harsh industrial and aerospace environments |
Pinout & Package
Package: Axial-leaded T-18 plastic encapsulated case (UL94V-0 epoxy), cathode indicated by colored band; leads are annealed matte-tin plated per MIL-STD-750, solderable at 260 °C for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias operation | Connected to lower-potential side; current flows into cathode during regulation |
| Cathode | Zener breakdown terminal | Banded end; held at regulated voltage relative to anode; requires proper polarity in circuit |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized mechanical and electrical interchangeability across manufacturers |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU with lead-free matte-tin plating and halogen-free epoxy |
| Moisture sensitivity Level 1 | No dry pack required; safe for standard SMT reflow and manual assembly without baking |
| Nonsensitive to ESD | Withstands >4 kV HBM per MIL-STD-750 Method 1020 without parameter shift |
| High surge current rating | 160 A (8.3 ms half-sine) enables robust transient voltage suppression in power rails |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stabilizing feedback reference in 48 V DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Zener diode providing fixed 36 V reference to optocoupler input, isolating primary and secondary control loops. Use Value: Maintains ±10% regulation accuracy across −40 °C to +85 °C ambient, supporting tight output voltage tolerance. | Use Scenario: Clamping induced transients on 24 V PLC I/O lines exposed to inductive switching noise. IC Role / Device Role / Timing Role: Shunt protector diverting surge energy above 36 V to ground before reaching downstream logic. Use Value: Withstands 160 A surges (8.3 ms) without failure, meeting IEC 61000-4-5 Level 3 immunity requirements. |
| Programmable Logic Controller Reference | Test Equipment Voltage Calibration |
Use Scenario: Generating stable bias voltage for analog input channel scaling in modular PLC backplanes. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC reference divider networks. Use Value: Low ΔVZ = 3.3 V ensures minimal drift between 16 mA and 80 mA operating current, improving measurement linearity. | Use Scenario: Calibrating benchtop multimeter internal references during factory verification. IC Role / Device Role / Timing Role: Traceable 36 V Zener standard used with metrology-grade current sources. Use Value: ±10% initial tolerance and <1.5% long-term stability support NIST-traceable calibration protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | ±5% tolerance (B suffix) vs. ±10% (A); otherwise identical electrical specs and package | Higher precision needed for tighter feedback loops or reduced calibration overhead | Select 1N5365B when voltage accuracy is prioritized over cost; same footprint and thermal behavior |
| MMSZ5245B-TP | Surface-mount SOD-123 package (200 mW), 33 V nominal, ±5%; not drop-in compatible | Used in space-constrained PCBs where axial leads are impractical | Choose MMSZ5245B-TP only for new designs accepting derated power and different layout; not a replacement |
Compared with 1N5365B and MMSZ5245B-TP, the 1N5365AE3/TR8 offers higher power handling (5 W vs. 200 mW), axial-lead mechanical robustness, and RoHS-compliant tape-and-reel packaging-making it optimal for industrial power and protection where thermal mass and surge resilience matter.
Availability
1N5365AE3/TR8 is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection circuits, and programmable logic controller reference design requiring stable component supply and long-lifecycle support.
Supply support for 1N5365AE3/TR8 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 for ruggedized voltage regulation in mission-critical power systems, emphasizing thermal robustness, surge survivability, and extended temperature operation.
FAQ
What is the Zener voltage tolerance of the 1N5365AE3/TR8?
The 1N5365AE3/TR8 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its nominal 36 V regulation voltage falls within 32.4 V to 39.6 V at 30 mA test current and 25 °C lead temperature. The tolerance remains valid across the full operating temperature range of −65 °C to +150 °C, as confirmed in Microsemi's REV D datasheet.
Does the 1N5365AE3/TR8 require dry packing before PCB assembly?
No, the 1N5365AE3/TR8 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity Level 1 classification, meaning it can be stored and assembled under standard ambient conditions without baking. This simplifies logistics and eliminates moisture-related popcorning risk during reflow or hand soldering, as documented in the Microsemi Scottsdale Division datasheet.
What is the maximum steady-state current for the 1N5365AE3/TR8 at 25 °C?
The maximum steady-state Zener current (IZM) for the 1N5365AE3/TR8 is 160 mA at TL = 25 °C with 3/8″ (10 mm) lead length from the body. This value derives from P = VZ × IZM, using the upper tolerance limit (39.6 V) and rated 5 W dissipation. Exceeding this current without enhanced heatsinking risks thermal runaway and permanent damage to the 1N5365AE3/TR8.
How is polarity marked on the 1N5365AE3/TR8?
The 1N5365AE3/TR8 uses a cathode band marking: a single colored ring near one end of the axial body identifies the cathode terminal. During normal Zener operation, the banded end must be held at a more positive potential than the anode. Reversing polarity subjects the device to forward conduction (VF ≤ 1.2 V @ 1.0 A), not regulation-and may cause failure if forward current is uncontrolled.
Is the 1N5365AE3/TR8 suitable for surge protection per IEC 61000-4-5?
Yes, the 1N5365AE3/TR8 is suitable for IEC 61000-4-5 Level 3 surge protection (1 kV line-earth, 2 kV line-line) when properly applied. Its 160 A non-repetitive surge current rating (8.3 ms half-sine) and low dynamic impedance (11 Ω) enable effective clamping of transients up to 36 V + ΔVZ. System-level validation is required, but the 1N5365AE3/TR8's published surge capability directly supports this standard's stress profile.
1N5365AE3/TR8 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/TR8 FAQ
1.How can I place an order for 1N5365AE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5365AE3/TR8 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/TR8 reliable?
The price and inventory of 1N5365AE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5365AE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5365AE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5365AE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5365AE3/TR8?
1N5365AE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5365AE3/TR8 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/TR8?
For technical support, including 1N5365AE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5365AE3/TR8 requirements.
6.How does Aetrix verify that 1N5365AE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5365AE3/TR8 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/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5365AE3/TR8?
All 1N5365AE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5365AE3/TR8, 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/TR8 part is unused and in its original packaging.
Return procedure for 1N5365AE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5365AE3/TR8 Tags
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