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Microchip Technology 1N5364E3/TR8
- Part No.:
- 1N5364E3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5364E3/TR8.pdf
- Description:
- DIODE ZENER 33V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:8,594
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Product details
Overview
1N5364E3/TR8 from Microsemi is a 5 W, 33 V ±5% axial-leaded silicon Zener diode optimized for voltage regulation in power supply feedback loops, overvoltage protection circuits, and precision reference applications. It delivers stable regulation at 33 V with 10 Ω dynamic impedance at 40 mA test current, supports up to 150 mA maximum Zener current when adequately heat-sunk, and operates across –65 °C to +150 °C.
For engineers reviewing the 1N5364E3/TR8 datasheet, 1N5364E3/TR8 pinout, 1N5364E3/TR8 application, or 1N5364E3/TR8 equivalent, key selection criteria include its 33 V nominal Zener voltage, ±5% tolerance (B-suffix), 5 W power rating, low 10 Ω ZZ at IZT, and RoHS-compliant e3 suffix with tape-and-reel TR8 packaging.
Technical Context
This device functions as a two-terminal voltage reference operating in reverse breakdown mode. Its regulation performance is defined by Zener voltage (VZ = 33 V), dynamic impedance (ZZ = 10 Ω at IZT = 40 mA), and voltage regulation (ΔVZ = 3.5 V between 10% and 50% of IZM).
Thermal design relies on junction-to-lead thermal resistance of 25 °C/W at 3/8″ lead length, enabling 5 W dissipation at TL ≤ 25 °C. Reverse leakage remains ≤0.5 μA at 25.1 V, and forward voltage is ≤1.2 V at 1.0 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V ±5% at 40 mA - defines stable regulation point for feedback or clamping |
| Power Dissipation | 5.0 W at TL = 25 °C - requires minimum 3/8″ lead length for full rating |
| Dynamic Impedance (ZZ) | 10 Ω at IZT = 40 mA - ensures minimal output voltage shift under load variation |
| Max Zener Current (IZM) | 150 mA - achievable only with adequate heat sinking per thermal derating curve |
| Reverse Leakage (IR) | ≤0.5 μA at VR = 25.1 V - guarantees low standby power loss in high-impedance bias networks |
| Operating Temperature | –65 °C to +150 °C - supports industrial and automotive under-hood environments |
| Forward Voltage (VF) | ≤1.2 V at IF = 1.0 A - enables use as low-loss rectifier in dual-role circuits |
Pinout & Package
Package: Axial-leaded T-18 plastic case (Void-free UL94V-0 epoxy), cathode indicated by band. Leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026. Weight: 0.7 g.
| 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 when reverse current flows through external series resistor |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard 1N53xxB family mechanical and electrical definitions |
| RoHS-compliant (e3) | Meets EU Directive 2011/65/EU; no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE |
| Tape-and-reel packaging (TR8) | Standard EIA-296 compliant reel format for automated SMT placement compatibility |
| MIL-STD-750 ESD robustness | Nonsensitive to electrostatic discharge per Method 1020 - eliminates need for special handling |
| Moisture sensitivity Level 1 | No dry pack required per IPC/JEDEC J-STD-020B - simplifies storage and assembly logistics |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback loop via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Precision voltage reference establishing 33 V threshold for error signal generation. Use Value: Maintains ±1% output regulation over line/load/temperature with 10 Ω ZZ minimizing gain error in feedback path. |
Use Scenario: Protects downstream 3.3 V or 5 V logic rails from transient surges exceeding 33 V during hot-swap or ESD events. IC Role / Device Role / Timing Role: Shunt clamp absorbing surge energy up to 150 mA peak without failure. Use Value: Limits voltage excursion to ≤33.5 V (VZ + ΔVZ) during 8.3 ms half-sine transients per IEC 61000-4-5. |
| Programmable Reference Source | Industrial Sensor Excitation |
|
Use Scenario: Provides stable 33 V excitation for high-precision RTD or strain gauge bridge circuits requiring low-drift references. IC Role / Device Role / Timing Role: Low-noise, low-impedance voltage source replacing more complex IC references where cost and simplicity are critical. Use Value: Delivers <0.5 μA leakage and 3.5 V regulation spread (ΔVZ) across 15–75 mA operating range. |
Use Scenario: Supplies regulated bias to 4–20 mA transmitter front-end op-amps in hazardous-area process instrumentation. IC Role / Device Role / Timing Role: Robust, wide-temperature voltage reference ensuring sensor signal integrity in harsh environments. Use Value: Operates reliably from –65 °C to +150 °C with <1.2 V forward drop enabling bidirectional current paths if needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5364B | Same 33 V ±5%, but lacks RoHS e3 suffix and TR8 tape-and-reel packaging | Requires manual loading or different reel standard; not suitable for RoHS-compliant production | Select 1N5364B only for legacy non-RoHS builds or prototyping without automated placement |
| SMBJ5364B | Surface-mount SMB package; same 33 V ±5% and 5 W rating, but ZZ = 12 Ω and IZM = 140 mA | Enables PCB space reduction and reflow assembly, but thermal performance differs due to FR4 mounting constraints | Choose SMBJ5364B when board area is constrained and thermal management uses 4 mm² copper pads per datasheet layout guidelines |
Compared with 1N5364E3/TR8, 1N5364B omits RoHS compliance and tape-and-reel convenience, while SMBJ5364B trades axial-mounting flexibility and superior junction-to-lead thermal resistance (25 °C/W) for surface-mount integration at slightly reduced regulation precision and surge capability.
Availability
1N5364E3/TR8 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and industrial sensor excitation systems requiring stable component supply, RoHS compliance, and automated assembly support.
Supply support for 1N5364E3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized, high-stability voltage regulation in mission-critical power and protection circuits where long-term parametric consistency and extended temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N5364E3/TR8?
The 1N5364E3/TR8 has a nominal Zener voltage of 33 V with a tolerance of ±5%, as indicated by the "B" suffix in its full designation. This tolerance is guaranteed over the full operating temperature range of –65 °C to +150 °C and applies to devices tested at 40 mA Zener test current under standard conditions per JEDEC specifications.
Can the 1N5364E3/TR8 be used in surface-mount designs?
No - the 1N5364E3/TR8 is an axial-leaded T-18 package intended for through-hole mounting. For surface-mount equivalents, Microsemi offers the SMBJ5364B in SMB package. The 1N5364E3/TR8 itself requires lead forming and wave or hand soldering; its thermal performance is optimized for 3/8″ lead length heat sinking, not PCB pad conduction.
What does the "e3" and "TR8" suffix mean in 1N5364E3/TR8?
The "e3" suffix indicates RoHS-compliant construction (lead-free matte-tin plating and halogen-free epoxy), while "TR8" denotes EIA-296 standard tape-and-reel packaging with 8 mm carrier tape width and 1,000 units per reel. Together, they confirm that the 1N5364E3/TR8 meets environmental compliance requirements and is ready for automated pick-and-place assembly.
What is the maximum surge current rating for the 1N5364E3/TR8?
The 1N5364E3/TR8 has a maximum non-recurrent surge current (IZSM) of 150 A, specified as the peak value of an 8.3 ms half-sine waveform. This rating assumes proper PCB layout and thermal mass; actual clamping performance depends on series impedance and duration of the transient event applied to the 1N5364E3/TR8.
How does thermal derating affect the 1N5364E3/TR8's power capability?
The 1N5364E3/TR8 is rated for 5.0 W at lead temperature (TL) ≤ 25 °C. Power must be linearly derated above this point at 20 mW/°C (due to 25 °C/W thermal resistance). At TL = 75 °C, for example, maximum dissipation drops to 4.0 W. Mounting on FR4 with 1 oz copper yields only 1.47 W at 25 °C ambient, per datasheet Figure 1.
1N5364E3/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):
- 33 V
- Tolerance:
- ±20%
- 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
1N5364E3/TR8 FAQ
1.How can I place an order for 1N5364E3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5364E3/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 1N5364E3/TR8 reliable?
The price and inventory of 1N5364E3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5364E3/TR8 is usually 5 days.
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1N5364E3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5364E3/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 1N5364E3/TR8?
For technical support, including 1N5364E3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5364E3/TR8 requirements.
6.How does Aetrix verify that 1N5364E3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5364E3/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 1N5364E3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5364E3/TR8?
All 1N5364E3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5364E3/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 1N5364E3/TR8 part is unused and in its original packaging.
Return procedure for 1N5364E3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5364E3/TR8 Tags
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