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Microchip Technology 1N5365BE3/TR8
- Part No.:
- 1N5365BE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5365BE3/TR8.pdf
- Description:
- DIODE ZENER 36V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,624
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Product details
Overview
1N5365BE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 36 V, ±5% tolerance (B suffix), 30 mA test current (IZT), 11 Ω dynamic impedance (ZZ), and 160 mA maximum Zener current (IZM) when adequately heat-sunk. It operates from –65 °C to +150 °C and is RoHS-compliant (e3 suffix), commonly used in DC power supply overvoltage clamping and precision reference circuits.
For engineers reviewing the 1N5365BE3/TR8 datasheet, 1N5365BE3/TR8 pinout, 1N5365BE3/TR8 application, or 1N5365BE3/TR8 equivalent, key selection criteria include its 36 V Zener voltage, 5 W steady-state power rating at TL < 25 °C, low 0.65 V voltage regulation (ΔVZ), and compatibility with standard T-18 axial package mounting on FR4 PCBs.
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 IZT to 160 mA IZM). Its thermal resistance is 25 °C/W junction-to-lead (3/8″ lead length) and 85 °C/W junction-to-ambient on FR4 with defined copper pads.
The 1N5365BE3/TR8 exhibits minimal voltage variation versus current-ΔVZ = 0.65 V between 10% and 50% of IZM-and supports surge currents up to 160 A (8.3 ms half-sine). Its cathode band polarity and moisture sensitivity level 1 classification enable reliable through-hole assembly without dry-pack requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% - precise regulation point for 33–39 V system protection or reference generation |
| Test Current (IZT) | 30 mA - standardized bias point for measuring VZ and dynamic impedance |
| Dynamic Impedance (ZZ) | 11 Ω - low AC resistance ensures minimal voltage shift under load transients |
| Max Zener Current (IZM) | 160 mA - maximum continuous DC current at TL < 25 °C with adequate heatsinking |
| Voltage Regulation (ΔVZ) | 0.65 V - difference between VZ measured at 16 mA and 80 mA, indicating regulation linearity |
| Power Dissipation | 5.0 W at TL < 25 °C - defines thermal design margin for lead-mounted operation |
| Operating Temperature | –65 °C to +150 °C - supports industrial and automotive under-hood environments |
Pinout & Package
Package: T-18 axial-leaded plastic case per JEDEC DO-204AL; void-free thermosetting epoxy body (UL94V-0), matte-tin plated leads solderable per MIL-STD-750 Method 2026; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reverse-biased reference node | Connected to lower-potential side of circuit; carries full Zener current during regulation |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to higher-potential side; provides stable 36 V reference when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard DO-204AL mechanical and electrical definitions |
| RoHS-compliant plating | e3 suffix confirms annealed matte-tin lead finish, eliminating lead-based solder compatibility issues |
| Low voltage regulation (ΔVZ) | 0.65 V ensures tight output stability across 10–50% of IZM, critical for precision references |
| High surge current rating | 160 A peak (8.3 ms half-sine) enables robust transient suppression in power rails |
| Moisture sensitivity Level 1 | No dry pack required before reflow; simplifies handling and storage logistics |
Applications
| DC Power Supply Clamping | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Clamp 48 V telecom power rail against surges exceeding 36 V threshold. IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbing excess energy during overvoltage events. Use Value: Prevents downstream IC damage by diverting >160 mA transient current while holding voltage ≤36.65 V. |
Use Scenario: Protect microcontroller I/O pins from accidental 24 V misconnection in industrial PLC modules. IC Role / Device Role / Timing Role: Standalone voltage clamp placed between signal line and ground. Use Value: Limits pin voltage to 36 V with <0.65 V regulation spread, avoiding latch-up or oxide breakdown. |
| Fixed Reference Voltage Source | Current-Regulated LED Driver Bias |
Use Scenario: Generate stable 36 V reference for analog-to-digital converter (ADC) input scaling. IC Role / Device Role / Timing Role: Passive voltage reference providing known potential for ratiometric measurement. Use Value: Delivers ±5% accuracy and <11 Ω dynamic impedance, minimizing ADC gain error from reference drift. |
Use Scenario: Set constant current for high-brightness LED string in signage applications using series-pass transistor. IC Role / Device Role / Timing Role: Zener-based bias network establishing base-emitter voltage for current mirror. Use Value: Maintains 36 V reference across temperature (–65 °C to +150 °C), ensuring consistent LED brightness over ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365BRLG | Same 36 V ±5%, 5 W rating, but in bulk packaging (no tape/reel); no TR8 suffix | Identical electrical performance; differs only in packaging format and reel quantity | Select 1N5365BRLG for manual prototyping or low-volume hand-soldered builds |
| MMSZ5245B-TP | Surface-mount SOD-123 package; 33 V ±5%, 500 mW rating; not a direct power or voltage match | Lower power and different voltage; suitable only for low-current signal-level referencing | Choose MMSZ5245B-TP only where board space constraints prohibit axial T-18 mounting |
Compared with 1N5365BE3/TR8, 1N5365BRLG offers identical regulation performance in non-reel form, while MMSZ5245B-TP trades power capability and voltage accuracy for miniaturization-making it unsuitable for 5 W clamping but viable for low-power biasing where footprint is critical.
Availability
1N5365BE3/TR8 is available at Aetrix Electronics and suitable for DC power supply clamping, overvoltage protection circuits, and fixed reference voltage source applications requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 1N5365BE3/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 1N53xxB series was designed for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and long-term parametric stability under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N5365BE3/TR8?
The 1N5365BE3/TR8 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its actual regulation voltage falls within 34.2 V to 37.8 V at 30 mA test current and 25 °C lead temperature. The e3 suffix confirms RoHS compliance but does not affect voltage tolerance.
Can the 1N5365BE3/TR8 be used without a heatsink?
The 1N5365BE3/TR8 can operate without an external heatsink only at reduced power levels. At ambient temperature (TA = 25 °C) on FR4 with specified copper pads, its steady-state power rating drops to 1.47 W. Full 5 W dissipation requires maintaining lead temperature (TL) below 25 °C-typically achieved with ≥3/8″ lead length and sufficient PCB copper area.
What does the "TR8" suffix mean in 1N5365BE3/TR8?
The "TR8" suffix indicates tape-and-reel packaging per EIA-296 standard, with 8 mm tape width and 1,000 units per reel. This format supports automated pick-and-place assembly. The base device remains electrically and mechanically identical to non-reel variants like 1N5365B or 1N5365BRLG.
Is the 1N5365BE3/TR8 suitable for surge protection?
Yes-the 1N5365BE3/TR8 is rated for 160 A peak surge current (8.3 ms half-sine waveform), making it suitable for transient voltage suppression in DC power lines. Its low ΔVZ (0.65 V) and high IZM (160 mA) ensure predictable clamping behavior during repetitive or single-event overvoltage conditions.
How does the 1N5365BE3/TR8 compare to the 1N4736A?
The 1N5365BE3/TR8 (36 V, 5 W, ±5%) and 1N4736A (36 V, 1 W, ±5%) share the same nominal Zener voltage but differ significantly in power handling and thermal design. The 1N5365BE3/TR8 supports 5× higher continuous current and features a T-18 axial package optimized for lead-based heat transfer, whereas the 1N4736A uses DO-41 packaging with lower power derating.
1N5365BE3/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:
- ±5%
- 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
1N5365BE3/TR8 FAQ
1.How can I place an order for 1N5365BE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5365BE3/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 1N5365BE3/TR8 reliable?
The price and inventory of 1N5365BE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5365BE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5365BE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5365BE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5365BE3/TR8?
1N5365BE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5365BE3/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 1N5365BE3/TR8?
For technical support, including 1N5365BE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5365BE3/TR8 requirements.
6.How does Aetrix verify that 1N5365BE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5365BE3/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 1N5365BE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5365BE3/TR8?
All 1N5365BE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5365BE3/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 1N5365BE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5365BE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5365BE3/TR8 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
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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