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Microchip Technology 1N5361E3/TR13
- Part No.:
- 1N5361E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5361E3/TR13.pdf
- Description:
- DIODE ZENER 27V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,856
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Product details
Overview
1N5361E3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 27 V, ±5% tolerance (B-suffix equivalent), 50 mA test current, 5 Ω maximum dynamic impedance at IZT, and 120 mA maximum Zener current (IZM) when adequately heat-sunk. It regulates voltage in power supply feedback loops, overvoltage protection circuits, and reference voltage generation for industrial power converters.
For engineers reviewing the 1N5361E3/TR13 datasheet, 1N5361E3/TR13 pinout, 1N5361E3/TR13 application, or 1N5361E3/TR13 equivalent, key selection criteria include its 27 V Zener voltage, 5 W steady-state power rating at 25 °C lead temperature, low 5 Ω dynamic impedance, 0.6 V voltage regulation (ΔVZ), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device operates as a reverse-biased voltage reference with stable breakdown behavior across –65 °C to +150 °C. Its 25 °C/W junction-to-lead thermal resistance enables reliable 5 W dissipation with 3/8″ (10 mm) lead length from body, while its 85 °C/W junction-to-ambient rating applies to FR4 PCB mounting with defined copper pad geometry.
The 1N5361E3/TR13 exhibits minimal voltage variation versus current - ΔVZ = 0.6 V between 10% and 50% of IZM - and withstands non-recurrent 8.3 ms half-sine surge currents up to 120 A, supporting transient overvoltage suppression in DC power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V nominal, ±5% tolerance - sets precise regulation point for feedback or clamping |
| Test Current (IZT) | 50 mA - defines operating point where VZ and ZZ are specified |
| Dynamic Impedance (ZZ) | 5 Ω max at IZT - ensures low output impedance for stable regulation under load changes |
| Max Zener Current (IZM) | 120 mA - maximum continuous DC current before exceeding 5 W power limit at TL = 25 °C |
| Voltage Regulation (ΔVZ) | 0.6 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Surge Current (IZSM) | 120 A peak (8.3 ms half-sine) - supports single-event transient suppression without failure |
| Forward Voltage (VF) | 1.2 V max @ 1.0 A - defines conduction threshold in forward bias, relevant for polarity protection |
Pinout & Package
Package: Axial-leaded T-18 molded epoxy case (UL94V-0), cathode indicated by band; RoHS-compliant matte-tin plated leads solderable per MIL-STD-750 Method 2026; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded lead | Connected to lower-potential node in reverse-bias regulation configuration |
| Cathode | Banded lead | Connected to higher-potential node; Zener breakdown occurs when cathode is ≥27 V above anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized electrical and mechanical specifications across global supply chain |
| Moisture sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during board assembly and testing |
| High surge current capability (120 A) | Provides robust transient immunity in unregulated DC input stages without external TVS |
| Stable regulation over –65 °C to +150 °C | Supports operation in harsh environments including industrial motor drives and outdoor power systems |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp for 24 V DC Rail |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated 24 V output flyback converter to regulate output within ±1%. IC Role / Device Role / Timing Role: Zener reference providing stable 27 V threshold to TL431 shunt regulator input. Use Value: 5 Ω dynamic impedance minimizes regulation error due to feedback current variation, improving load regulation to ±0.5%. | Use Scenario: Placed across 24 V DC input rail of PLC I/O module to clamp transients from inductive load switching. IC Role / Device Role / Timing Role: Standalone overvoltage protection element absorbing energy during 100 V/10 µs spikes. Use Value: 120 A surge rating handles repetitive 50 A transients without degradation, extending system MTBF. |
| Programmable Voltage Reference | Industrial Sensor Excitation |
Use Scenario: Paired with precision resistor divider to generate 10.0 V reference for 16-bit ADC in data acquisition system. IC Role / Device Role / Timing Role: Primary voltage reference source with temperature coefficient compensated via external network. Use Value: ±5% initial tolerance and 0.6 V ΔVZ enable calibration to 0.1% absolute accuracy after one-point trim. | Use Scenario: Supplies regulated excitation voltage to 350 Ω strain gauge bridge in weigh scale transducer interface. IC Role / Device Role / Timing Role: Stable bias source maintaining constant bridge current despite supply ripple. Use Value: Low 25 °C/W thermal resistance ensures <0.02%/°C drift when mounted on heatsink, reducing temperature-induced measurement error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5361B | Same 27 V VZ, ±5% tolerance, but non-RoHS tin-lead plating; no e3 suffix | Not suitable for RoHS-compliant production; requires lead-free process validation | Select only if legacy tin-lead assembly is mandated and environmental compliance is not required |
| MMSZ5258ET1G | Surface-mount SOD-123 package; 27 V VZ, ±5%; 500 mW rating vs. 5 W; ZZ = 35 Ω | Limited to low-power signal-level regulation; cannot replace in high-current power rail clamping | Choose for space-constrained PCBs where power dissipation ≤0.5 W suffices and thermal design permits SMT mounting |
Compared with 1N5361B and MMSZ5258ET1G, the 1N5361E3/TR13 uniquely combines RoHS compliance, 5 W power handling, axial-leaded through-hole mounting, and 5 Ω dynamic impedance - making it optimal for industrial power supply regulation where reliability, thermal margin, and regulatory compliance are jointly critical.
Availability
1N5361E3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, programmable logic controller (PLC) input protection, and sensor excitation circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5361E3/TR13 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 specifically for ruggedized voltage regulation in high-temperature, high-surge industrial power systems - emphasizing thermal robustness, ESD immunity, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5361E3/TR13?
The 1N5361E3/TR13 has a nominal Zener voltage of 27 V with ±5% tolerance, consistent with the "B" suffix designation in the 1N53xxB family. This tolerance is verified at 25 °C lead temperature with 50 mA test current and defines the allowable VZ range as 25.65 V to 28.35 V. The e3 suffix confirms RoHS compliance but does not alter voltage specification.
Can the 1N5361E3/TR13 be used without a heatsink?
The 1N5361E3/TR13 can dissipate up to 1.47 W continuously when mounted on a standard FR4 PCB with 4 mm² copper pads and 1 mm wide × 25 mm long traces, per its 85 °C/W junction-to-ambient thermal resistance. For full 5 W operation, a heatsink or 3/8″ (10 mm) lead length from body is required to maintain junction temperature within –65 °C to +150 °C limits.
What is the maximum surge current rating for the 1N5361E3/TR13?
The 1N5361E3/TR13 is rated for a maximum non-recurrent surge current (IZSM) of 120 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating assumes proper PCB layout and thermal path; repeated surges above 50% of IZSM may degrade long-term reliability unless derated per Microsemi Application Note 202.
How does the 1N5361E3/TR13 differ from the 1N5361B?
The 1N5361E3/TR13 and 1N5361B share identical electrical specifications including 27 V VZ, ±5% tolerance, 50 mA IZT, and 5 Ω ZZ. The key distinction is plating: 1N5361E3/TR13 uses RoHS-compliant matte-tin per MIL-STD-750, while 1N5361B uses traditional tin-lead. Both use the same T-18 axial package and TR13 tape-and-reel packaging.
Is the 1N5361E3/TR13 suitable for automotive applications?
The 1N5361E3/TR13 operates across –65 °C to +150 °C and meets MIL-STD-750 ESD and surge requirements, but it is not AEC-Q200 qualified. For automotive applications requiring qualification, Microsemi offers screened versions (e.g., JANTXV-1N5361B) with added MQ/MX/MV prefixes; the 1N5361E3/TR13 is intended for industrial and commercial systems where full automotive qualification is not mandated.
1N5361E3/TR13 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:
- ±20%
- 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
1N5361E3/TR13 FAQ
1.How can I place an order for 1N5361E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5361E3/TR13 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 1N5361E3/TR13 reliable?
The price and inventory of 1N5361E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5361E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5361E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5361E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5361E3/TR13?
1N5361E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5361E3/TR13 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 1N5361E3/TR13?
For technical support, including 1N5361E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5361E3/TR13 requirements.
6.How does Aetrix verify that 1N5361E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5361E3/TR13 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 1N5361E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5361E3/TR13?
All 1N5361E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5361E3/TR13, 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 1N5361E3/TR13 part is unused and in its original packaging.
Return procedure for 1N5361E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5361E3/TR13 Tags
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