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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Microchip Technology 1N5364AE3/TR12

Name: 1N5364AE3/TR12
Brand: Microchip Technology
SKU: 1N5364AE3/TR12
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5364AE3/TR12

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

Package:: T-18, Axial

Datasheet:: 1N5364AE3/TR12.pdf

Description:: DIODE ZENER 33V 5W T18

Quantity:: RFQ Add To RFQ list

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Inventory:6,439

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Product details

Overview

1N5364AE3/TR12 from Microsemi is a 33 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. It delivers 33 V nominal Zener voltage at 40 mA test current, with 10 Ω dynamic impedance, 150 mA maximum regulator current, and operates across –65°C to +150°C.

For engineers reviewing the 1N5364AE3/TR12 datasheet, 1N5364AE3/TR12 pinout, 1N5364AE3/TR12 application, or 1N5364AE3/TR12 equivalent, key selection criteria include its ±10% voltage tolerance (A suffix), RoHS-compliant e3 plating, tape-and-reel TR12 packaging, 25 °C/W junction-to-lead thermal resistance, and compliance with MIL-PRF-19500 screening options when prefixed.

Technical Context

This discrete Zener diode functions as a two-terminal voltage reference device operating in reverse breakdown. Its regulation performance is defined by Zener voltage (V_Z = 33 V), dynamic impedance (Z_Z ≤ 10 Ω at I_ZT = 40 mA), and voltage regulation (ΔV_Z = 3.5 V between 10% and 50% of I_ZM).

It features a T-18 axial package with cathode band marking, tin-lead or RoHS-compliant matte-tin plating, and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Thermal performance is specified at 3/8" (10 mm) lead length from body (25 °C/W) and on FR4 board (85 °C/W).

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	33 V nominal at 40 mA; ±10% tolerance ensures stable reference within 29.7–36.3 V range under production conditions.
Power Dissipation	5.0 W at 25°C lead temperature; derates linearly above 25°C per Figure 1 curve.
Dynamic Impedance (Z_Z)	≤10 Ω at I_ZT = 40 mA; low impedance maintains tight voltage regulation under varying load currents.
Max Regulator Current (I_ZM)	150 mA; calculated as P_rated/V_Z(max) = 5 W / 36.3 V ≈ 138 mA, rounded to 150 mA per spec table.
Reverse Leakage (I_R)	≤0.5 μA at 25.1 V (V_R = 0.75 × V_Z); confirms sharp knee and low standby loss in high-impedance bias networks.
Thermal Resistance (R_θJL)	25 °C/W junction-to-lead at 10 mm lead length; enables direct thermal path to heatsink or chassis via lead bending.
Operating Temperature	–65°C to +150°C; supports deployment in automotive engine compartments and industrial control enclosures.

Pinout & Package

Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL standard. Void-free UL94V-0 epoxy body, 0.7 g weight, cathode indicated by single black band. Leads are solderable per MIL-STD-750 Method 2026.

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; supplies stable 33 V reference when reverse current flows through external series resistor.

Key Features

Feature	Design Value
JEDEC-registered Zener family	Ensures standardized mechanical dimensions, marking, and reliability testing across global supply chain.
RoHS-compliant e3 suffix	Matte-tin plating replaces leaded finishes; compliant with EU RoHS Directive 2011/65/EU without performance trade-off.
Tape-and-reel TR12 packaging	Standard EIA-296 format with 12 mm tape width; supports automated SMT placement despite axial form factor.
MIL-PRF-19500 screening option	Enables JAN, JANTX, or JANTXV qualification via MQ/MX/MV prefix; required for aerospace and defense programs.
Level 1 moisture sensitivity	No dry pack or baking required before assembly; reduces manufacturing overhead and avoids moisture-induced popcorning.

Applications

Switch-Mode Power Supply Feedback	Overvoltage Clamp Protection
Use Scenario: Used in TL431-based secondary-side feedback loop to regulate 12 V output in 100 W AC/DC adapter. IC Role / Device Role / Timing Role: Provides precise 33 V reference to set error amplifier trip point; replaces higher-cost IC references where ±10% tolerance suffices. Use Value: Enables cost-effective regulation with <3.5 V total voltage variation (ΔV_Z) across 15–75 mA operating range.	Use Scenario: Placed across motor driver H-bridge output to clamp inductive kickback spikes during turn-off. IC Role / Device Role / Timing Role: Acts as passive crowbar element; clamps transient voltage to ≤36.3 V to protect MOSFETs rated for 40 V V_DSS. Use Value: Withstands 150 mA peak surge (IZSM = 150 A half-sine, 8.3 ms) without degradation, extending system MTBF.
Industrial Sensor Excitation Reference	Programmable Logic Controller Input Conditioning
Use Scenario: Supplies stable bias to 350 Ω strain gauge bridge in weigh-scale transducer module operating at 85°C ambient. IC Role / Device Role / Timing Role: Functions as temperature-stable shunt reference; compensates for bridge nonlinearity via fixed-current excitation. Use Value: Maintains regulation across –65°C to +150°C with <0.4 V drift over full range, meeting ANSI C12.20 Class 0.2 accuracy.	Use Scenario: Mounted on PLC digital input card to limit field voltage to safe levels before optocoupler isolation stage. IC Role / Device Role / Timing Role: Serves as front-end overvoltage limiter; clamps 24 V DC field wiring surges to prevent optocoupler saturation. Use Value: Low 10 Ω Z_Z ensures <0.15 V additional drop at 15 mA input current, preserving noise margin for 2.5 V logic thresholds.

Switch-Mode Power Supply Feedback

Overvoltage Clamp Protection

Use Scenario: Used in TL431-based secondary-side feedback loop to regulate 12 V output in 100 W AC/DC adapter.

IC Role / Device Role / Timing Role: Provides precise 33 V reference to set error amplifier trip point; replaces higher-cost IC references where ±10% tolerance suffices.

Use Value: Enables cost-effective regulation with <3.5 V total voltage variation (ΔV_Z) across 15–75 mA operating range.

Use Scenario: Placed across motor driver H-bridge output to clamp inductive kickback spikes during turn-off.

IC Role / Device Role / Timing Role: Acts as passive crowbar element; clamps transient voltage to ≤36.3 V to protect MOSFETs rated for 40 V V_DSS.

Use Value: Withstands 150 mA peak surge (IZSM = 150 A half-sine, 8.3 ms) without degradation, extending system MTBF.

Industrial Sensor Excitation Reference

Programmable Logic Controller Input Conditioning

Use Scenario: Supplies stable bias to 350 Ω strain gauge bridge in weigh-scale transducer module operating at 85°C ambient.

IC Role / Device Role / Timing Role: Functions as temperature-stable shunt reference; compensates for bridge nonlinearity via fixed-current excitation.

Use Value: Maintains regulation across –65°C to +150°C with <0.4 V drift over full range, meeting ANSI C12.20 Class 0.2 accuracy.

Use Scenario: Mounted on PLC digital input card to limit field voltage to safe levels before optocoupler isolation stage.

IC Role / Device Role / Timing Role: Serves as front-end overvoltage limiter; clamps 24 V DC field wiring surges to prevent optocoupler saturation.

Use Value: Low 10 Ω Z_Z ensures <0.15 V additional drop at 15 mA input current, preserving noise margin for 2.5 V logic thresholds.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N5364B	Same 33 V rating but ±5% tolerance (B suffix) and no e3 RoHS marking; identical T-18 package and electrical specs otherwise.	Suitable where tighter voltage tolerance is required and RoHS compliance is not mandated.	Select 1N5364B if ±5% V_Z stability is critical and legacy tin-lead assembly is used.
MMBZ5255BLT1G	Surface-mount SOT-23 package; 33 V, ±5%, 250 mW rating; 30 Ω Z_Z at 10 mA; not drop-in replaceable due to power and package mismatch.	Applicable only in space-constrained, low-power designs where 5 W dissipation is unnecessary.	Choose MMBZ5255BLT1G only for portable battery-powered systems needing <0.25 W regulation.

Compared with 1N5364B, the 1N5364AE3/TR12 trades ±5% tolerance for RoHS compliance and tape-and-reel delivery; versus MMBZ5255BLT1G, it provides 20× higher power handling and axial mounting flexibility but requires PCB real estate and through-hole assembly.

Availability

1N5364AE3/TR12 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and overvoltage protection circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for 1N5364AE3/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 ruggedized, high-power voltage regulation in harsh-environment power systems-emphasizing thermal robustness, surge resilience, and military-grade screening readiness.

FAQ

What is the Zener voltage tolerance for 1N5364AE3/TR12?

The "A" suffix in 1N5364AE3/TR12 specifies a ±10% Zener voltage tolerance, meaning the measured V_Z falls between 29.7 V and 36.3 V at 40 mA test current and 25°C. This is confirmed in Note 1 of the Microsemi datasheet and distinguishes it from ±5% (B), ±2% (C), or ±1% (D) variants. The 1N5364AE3/TR12 is not interchangeable with tighter-tolerance versions without circuit revalidation.

Does 1N5364AE3/TR12 require dry packing before PCB assembly?

No, the 1N5364AE3/TR12 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored and assembled without dry pack or baking. This is explicitly stated in the Features section and eliminates moisture-related yield loss during reflow or wave soldering. The 1N5364AE3/TR12's void-free epoxy body contributes to this robust moisture resistance.

What is the maximum surge current rating for 1N5364AE3/TR12?

The 1N5364AE3/TR12 has a maximum non-recurrent surge current (I_ZSM) of 150 A, defined as the peak of an 8.3 ms half-sine waveform (per Note 5). This rating enables reliable clamping of inductive switching transients in motor drives and relay coils. The 1N5364AE3/TR12 sustains this surge without parameter shift when mounted with adequate lead heat sinking.

Can 1N5364AE3/TR12 be used in surface-mount designs?

No-the 1N5364AE3/TR12 uses a T-18 axial-leaded package incompatible with SMT placement. For surface-mount equivalents, Microsemi offers the SMBJ5364B (DO-214AA) and SMBG5364B (DO-214AB), both rated for 5 W and sharing identical electrical specs. The 1N5364AE3/TR12 requires through-hole mounting with ≥10 mm lead length for thermal derating compliance.

What does the "TR12" suffix indicate in 1N5364AE3/TR12?

The "TR12" suffix denotes EIA-296 standard tape-and-reel packaging with 12 mm carrier tape width, enabling automated pick-and-place handling despite the axial form factor. This differs from bulk or ammo-pack options and is essential for high-volume manufacturing. The 1N5364AE3/TR12 reel contains 1,000 units per standard configuration, verified in the Mechanical and Packaging section.

1N5364AE3/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):: 33 V

Tolerance:: ±10%

Power - Max:: 5 W

Impedance (Max) (Zzt):: 10 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 23.8 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

1N5364AE3/TR12 FAQ

1.How can I place an order for 1N5364AE3/TR12 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5364AE3/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 1N5364AE3/TR12 reliable?

The price and inventory of 1N5364AE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364AE3/TR12 is usually 5 days.

3.What payment methods are accepted for 1N5364AE3/TR12?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5364AE3/TR12 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5364AE3/TR12?

1N5364AE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5364AE3/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 1N5364AE3/TR12?

For technical support, including 1N5364AE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364AE3/TR12 requirements.

6.How does Aetrix verify that 1N5364AE3/TR12 is sourced from the original manufacturer or authorized distributors?

All 1N5364AE3/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 1N5364AE3/TR12 meets industry standards.

7.What is the process for return or replacement of 1N5364AE3/TR12?

All 1N5364AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364AE3/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 1N5364AE3/TR12 part is unused and in its original packaging.

Return procedure for 1N5364AE3/TR12:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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