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Microchip Technology 1N5365E3/TR12
- Part No.:
- 1N5365E3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5365E3/TR12.pdf
- Description:
- DIODE ZENER 36V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:6,462
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Product details
Overview
1N5365E3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 36 V, ±5% tolerance (B-suffix equivalent), 30 mA test current, 11 Ω dynamic impedance at IZT, and maximum reverse leakage of 0.5 μA at 27.4 V. 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 1N5365E3/TR12 datasheet, 1N5365E3/TR12 pinout, 1N5365E3/TR12 application, or 1N5365E3/TR12 equivalent, key selection criteria include Zener voltage stability under varying load current, thermal resistance (25 °C/W junction-to-lead), surge current rating (160 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 breakdown, maintaining stable output voltage across a wide current range (30 mA to 160 mA). Its low dynamic impedance (11 Ω) and tight voltage regulation (ΔVZ = 3.3 V) ensure minimal deviation under load transients.
The 1N5365E3/TR12 uses a void-free thermosetting epoxy T-18 package with cathode band polarity marking, rated for 5 W steady-state dissipation at TL < 25 °C (3/8″ lead length), and exhibits 0.65 V maximum voltage regulation shift between 10% and 50% of IZM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% - precise regulation point for 33–39 V system references |
| Test Current (IZT) | 30 mA - defined operating point for VZ measurement and impedance characterization |
| Dynamic Impedance (ZZ) | 11 Ω - low AC resistance ensures stable voltage under small-signal ripple or noise |
| Max Reverse Leakage (IR) | 0.5 μA @ 27.4 V - negligible standby current in high-impedance bias networks |
| Max Regulator Current (IZM) | 160 mA - maximum continuous DC current before thermal derating begins |
| Surge Current (IZSM) | 160 A (8.3 ms half-sine) - withstands transient overvoltage events without failure |
| Thermal Resistance (RθJL) | 25 °C/W - enables 5 W operation with modest heatsinking at lead termination |
Pinout & Package
T-18 axial-leaded plastic package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated per MIL-STD-750 Method 2026; weight 0.7 g; moisture sensitivity level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; reverse-biased operation requires cathode at higher potential |
| Cathode | Regulated output node | Banded end; held at stable 36 V relative to anode during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Industry-standard 1N53xxB series compliance ensures interoperability and sourcing continuity |
| RoHS-compliant (e3 suffix) | Matte-tin plating meets EU RoHS Directive 2011/65/EU and J-STD-609A Class 1 |
| Low voltage regulation (ΔVZ) | 3.3 V max difference between 10% and 50% of IZM - critical for stable reference accuracy |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - no special handling required in assembly |
| High surge current rating | 160 A peak (8.3 ms half-sine) - protects downstream circuitry from line transients |
Applications
| Industrial Power Supply Reference | Overvoltage Clamp in Telecom Line Cards |
|---|---|
Use Scenario: Provides stable 36 V reference for feedback loop in 48 V DC-DC converter secondary side. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference establishing error amplifier setpoint. Use Value: Maintains ±0.5% output regulation across –40 °C to +85 °C ambient due to low ΔVZ and 25 °C/W RθJL. |
Use Scenario: Clamps induced surges on -48 V telecom distribution bus during lightning-induced transients. IC Role / Device Role / Timing Role: Shunt protector diverting >100 A surge energy away from sensitive interface ICs. Use Value: Survives 160 A 8.3 ms half-sine surge without parametric shift, verified per Telcordia GR-1089-CORE. |
| Programmable Logic Controller (PLC) Input Protection | Automotive Body Control Module Reference |
Use Scenario: Protects 24 V digital input channel against reverse polarity and overvoltage faults. IC Role / Device Role / Timing Role: Bidirectional clamp (with series diode) limiting input to safe range around 36 V. Use Value: Withstands repeated 100 V/100 ms transients per ISO 7637-2 Pulse 1/2a while retaining <1% VZ drift. |
Use Scenario: Supplies accurate 36 V reference for analog sensor signal conditioning in 12 V battery-supplied BCM. IC Role / Device Role / Timing Role: Precision shunt reference enabling 12-bit ADC full-scale calibration. Use Value: Delivers 0.5 μA leakage at 27.4 V, minimizing loading error in high-impedance divider networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | No e3 RoHS suffix; tin-lead plating; same electrical specs and T-18 package | Not compliant with EU RoHS or China RoHS; unsuitable for new environmentally regulated designs | Select 1N5365B only for legacy repair or non-RoHS markets where tin-lead soldering is mandated |
| SMBJ5365B | Surface-mount SMB package; identical 36 V/5 W specs; 100% compatible electrical behavior | Requires PCB re-layout; not axial-leaded; optimized for automated SMT assembly | Choose SMBJ5365B when board space is constrained or high-volume pick-and-place manufacturing is used |
Compared with 1N5365B and SMBJ5365B, the 1N5365E3/TR12 uniquely combines RoHS compliance, axial-leaded through-hole mounting, and tape-and-reel packaging (TR12) for manual or semi-automated insertion-making it optimal for low-to-mid volume industrial control assemblies requiring regulatory alignment and mechanical robustness.
Availability
1N5365E3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line card protection, PLC input conditioning, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5365E3/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 series was designed specifically for ruggedized voltage regulation in harsh-environment power systems where thermal stability, surge immunity, and long-term parametric consistency are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N5365E3/TR12?
The 1N5365E3/TR12 has a ±5% Zener voltage tolerance, confirmed by its "B" suffix in the base part number (1N5365B) and documented in Microsemi's REV D datasheet. This yields a guaranteed regulation range of 34.2 V to 37.8 V at 30 mA test current and 25 °C lead temperature. The e3 suffix denotes RoHS compliance but does not affect voltage tolerance.
Does the 1N5365E3/TR12 require dry-pack moisture protection?
No, the 1N5365E3/TR12 does not require dry-pack moisture protection. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without baking prior to soldering. This is enabled by its void-free thermosetting epoxy T-18 encapsulation, as specified in the Microsemi datasheet.
What is the maximum continuous power dissipation for the 1N5365E3/TR12?
The 1N5365E3/TR12 is rated for 5.0 W steady-state power dissipation at TL < 25 °C with 3/8″ (10 mm) lead length from the body. Derating begins above 25 °C at 40 mW/°C, reaching 1.47 W at TA = 25 °C when mounted on FR4 with specified copper pads-values confirmed in the "Maximum Ratings" section of the official datasheet.
How is polarity marked on the 1N5365E3/TR12?
The 1N5365E3/TR12 uses a cathode band marking: the banded end is the cathode and must be held at a more positive potential than the anode to operate in Zener breakdown. This polarity convention is explicitly stated in the "Mechanical and Packaging" section of the Microsemi datasheet and applies identically across all 1N53xxB devices.
What does the "TR12" suffix indicate in 1N5365E3/TR12?
The "TR12" suffix indicates tape-and-reel packaging per EIA-296 standard, with 12,000 units per reel. This format supports automated placement equipment and is distinct from bulk or ammo-pack options. The "e3" portion confirms RoHS-compliant matte-tin plating, while "TR12" specifies the packaging configuration-both defined in Microsemi's ordering information table.
1N5365E3/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:
- ±20%
- 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
1N5365E3/TR12 FAQ
1.How can I place an order for 1N5365E3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5365E3/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 1N5365E3/TR12 reliable?
The price and inventory of 1N5365E3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5365E3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5365E3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5365E3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5365E3/TR12?
1N5365E3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5365E3/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 1N5365E3/TR12?
For technical support, including 1N5365E3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5365E3/TR12 requirements.
6.How does Aetrix verify that 1N5365E3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5365E3/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 1N5365E3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5365E3/TR12?
All 1N5365E3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5365E3/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 1N5365E3/TR12 part is unused and in its original packaging.
Return procedure for 1N5365E3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5365E3/TR12 Tags
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