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Microchip Technology 1N5361AE3/TR8
- Part No.:
- 1N5361AE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5361AE3/TR8.pdf
- Description:
- DIODE ZENER 27V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:8,045
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Product details
Overview
1N5361AE3/TR8 from Microsemi is a 5 W axial-leaded Zener diode with nominal regulation voltage of 27 V, ±10% tolerance (A suffix), 50 mA test current, 5 Ω dynamic impedance at 50 mA, and maximum reverse current of 0.5 μA at 20.1 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 1N5361AE3/TR8 datasheet, 1N5361AE3/TR8 pinout, 1N5361AE3/TR8 application, or 1N5361AE3/TR8 equivalent, this page provides verified electrical parameters, thermal derating behavior, RoHS-compliant packaging (e3), tape-and-reel delivery (TR8), and validated alternatives for 27 V Zener regulation.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown. Its 27 V nominal Zener voltage is specified at 50 mA test current (IZT) with ±10% tolerance, and it maintains regulation across 10–50% of IZM (120 mA), exhibiting 0.60 V voltage regulation (ΔVZ) between those points.
Thermal design relies on junction-to-lead resistance of 25 °C/W at 10 mm lead length, enabling 5 W dissipation at TL = 25 °C. When mounted on FR4 with 4 mm² copper pads, steady-state power drops to 1.47 W at TA = 25 °C due to 85 °C/W junction-to-ambient resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V nominal, ±10% tolerance - sets regulated output level with 24.3–29.7 V range at 50 mA |
| Test Current (IZT) | 50 mA - defines the operating point where VZ and ZZ are guaranteed |
| Dynamic Impedance (ZZ) | 5 Ω max at IZT - determines output voltage variation under load current changes |
| Max Reverse Current (IR) | 0.5 μA at VR = 20.1 V - ensures low leakage below regulation threshold |
| Max Regulator Current (IZM) | 120 mA - maximum DC current before exceeding 5 W rating at TL = 25 °C |
| Voltage Regulation (ΔVZ) | 0.60 V - difference between VZ measured at 12 mA and 60 mA, indicating regulation linearity |
| Surge Current (IZSM) | 120 A peak (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
Pinout & Package
Package: Axial-leaded T-18 plastic case per JEDEC DO-201AD; cathode indicated by band; RoHS-compliant matte-tin plating; weight 0.7 g; moisture sensitivity Level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage side in regulation | Connected to circuit ground or lower potential node during Zener operation |
| Cathode | Reverse breakdown terminal / high-voltage side in regulation | Banded end; connected to unregulated input rail to clamp voltage at 27 V |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with 1N53xxB series mechanical and electrical standards for interchangeability |
| RoHS-compliant (e3) | Lead-free matte-tin plating meets EU RoHS Directive 2011/65/EU requirements |
| Tape-and-reel packaging (TR8) | Standard EIA-296 compliant reel format for automated SMT placement compatibility |
| Low thermal resistance | 25 °C/W junction-to-lead enables full 5 W dissipation with minimal heatsinking |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - no special handling required in assembly |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stable 27 V reference for feedback loop in 48 V telecom DC-DC converter. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing precise voltage setpoint for error amplifier. Use Value: Maintains ±0.60 V regulation across 12–60 mA load variation, ensuring <1% output error. | Use Scenario: Clamping transient surges on 24 V CAN bus power rail during load dump events. IC Role / Device Role / Timing Role: Passive overvoltage clamp absorbing 120 A surge (8.3 ms) without failure. Use Value: Limits rail voltage to ≤29.7 V (max VZ) during transients, protecting downstream 24 V logic. |
| Programmable Logic Controller Input Protection | Test Equipment Calibration Reference |
Use Scenario: Protecting 24 V digital input channel against field wiring faults and induced spikes. IC Role / Device Role / Timing Role: Shunt limiter diverting excess current when input exceeds 27 V. Use Value: Withstands 0.5 μA leakage up to 20.1 V, minimizing false triggering in normal operation. | Use Scenario: Providing traceable 27 V reference in portable multimeter calibration fixture. IC Role / Device Role / Timing Role: Precision voltage standard with ±10% initial tolerance and low ΔVZ drift. Use Value: Enables calibration accuracy within ±0.60 V across operating current range, supporting NIST-traceable verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5361B | Same 27 V nominal, ±5% tolerance (B suffix), 50 mA IZT, 5 Ω ZZ - tighter voltage spec | Higher precision needed where 25.65–28.35 V range is required vs. 24.3–29.7 V for 1N5361AE3/TR8 | Select 1N5361B when tighter initial tolerance is critical; same package and thermal behavior |
| SMBJ5361B | Surface-mount SMB package, same 27 V/±5%, 50 mA IZT, but 6.0 Ω ZZ and 1.47 W power rating | Used where board space is constrained and reflow soldering is preferred over axial through-hole mounting | Choose SMBJ5361B for SMT designs; derate power to 1.47 W on FR4, not 5 W |
Compared with 1N5361AE3/TR8, the 1N5361B offers improved voltage accuracy at identical power and thermal performance, while SMBJ5361B trades axial-mount flexibility and 5 W capability for compact surface-mount integration at reduced power handling.
Availability
1N5361AE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and programmable logic controller input stages requiring stable component supply with RoHS compliance and tape-and-reel delivery.
Supply support for 1N5361AE3/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 robust, high-power Zener regulation in harsh environments, emphasizing wide temperature range (–65 °C to +150 °C), surge resilience, and JEDEC-standardized mechanical compatibility.
FAQ
What is the Zener voltage tolerance for 1N5361AE3/TR8?
The "A" suffix in 1N5361AE3/TR8 specifies a ±10% Zener voltage tolerance. At the nominal 27 V rating, this yields a guaranteed range of 24.3 V to 29.7 V when measured at 50 mA test current and 25 °C lead temperature. This tolerance is confirmed in the manufacturer's REV D datasheet, Note 1.
Does 1N5361AE3/TR8 require dry-pack moisture protection?
No, 1N5361AE3/TR8 does not require dry-pack moisture protection. Its plastic encapsulation meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity classification, meaning it may be stored indefinitely at ambient conditions without baking prior to soldering.
What is the maximum continuous current for 1N5361AE3/TR8 at room temperature?
The maximum continuous Zener current (IZM) for 1N5361AE3/TR8 is 120 mA when operated at TL = 25 °C (3/8 inch lead length from body), corresponding to its rated 5 W power dissipation. This value is derived from P = VZ × IZM using the upper limit of the tolerance band (29.7 V × 0.12 A ≈ 3.56 W), consistent with the datasheet's IZM specification for ±10% devices.
Can 1N5361AE3/TR8 be used in surface-mount designs?
No - 1N5361AE3/TR8 is an axial-leaded T-18 (DO-201AD) package and is not compatible with surface-mount assembly. For SMT equivalents, Microsemi offers the SMBJ5361B in SMB package, which shares the same 27 V/±5% rating but has different thermal and power ratings.
What does the "e3" and "TR8" suffix mean in 1N5361AE3/TR8?
The "e3" suffix indicates RoHS-compliant matte-tin plating per EU Directive 2011/65/EU. The "TR8" denotes tape-and-reel packaging per EIA-296 standard, with 8 mm tape width and standard orientation for automated pick-and-place equipment. Both suffixes are defined in the Microsemi datasheet header and Features section.
1N5361AE3/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):
- 27 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 19.4 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
1N5361AE3/TR8 FAQ
1.How can I place an order for 1N5361AE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5361AE3/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 1N5361AE3/TR8 reliable?
The price and inventory of 1N5361AE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5361AE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5361AE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5361AE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5361AE3/TR8?
1N5361AE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5361AE3/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 1N5361AE3/TR8?
For technical support, including 1N5361AE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5361AE3/TR8 requirements.
6.How does Aetrix verify that 1N5361AE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5361AE3/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 1N5361AE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5361AE3/TR8?
All 1N5361AE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5361AE3/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 1N5361AE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5361AE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5361AE3/TR8 Tags
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