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Microchip Technology 1N5361CE3/TR12
- Part No.:
- 1N5361CE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5361CE3/TR12.pdf
- Description:
- DIODE ZENER 27V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,741
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Product details
Overview
1N5361CE3/TR12 from Microsemi is a silicon 5 W axial-leaded Zener diode with nominal regulation voltage of 27 V, ±2% tolerance (C suffix), 50 mA test current, 5 Ω maximum dynamic impedance at IZT, and 120 mA maximum Zener current (IZM) when adequately heat-sunk. It operates across –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5361CE3/TR12 datasheet, 1N5361CE3/TR12 pinout, 1N5361CE3/TR12 application, or 1N5361CE3/TR12 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (120 A), voltage regulation (ΔVZ = 0.60 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator in reverse-biased mode, maintaining stable 27 V output across a wide operating current range (10–120 mA) and temperature span (–65 °C to +150 °C). Its low dynamic impedance (5 Ω) and tight ±2% voltage tolerance ensure minimal deviation under varying load conditions.
The 1N5361CE3/TR12 uses a void-free thermosetting epoxy T-18 package with cathode band polarity marking, rated for 5.0 W steady-state dissipation at 25 °C lead temperature and 1.47 W on FR4 PCB (1 oz Cu, 4 mm² pad). It withstands 8.3 ms half-sine surge currents up to 120 A and exhibits <0.60 V voltage regulation between 10% and 50% of IZM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±2% - precise regulation point for feedback loops and reference circuits |
| Test Current (IZT) | 50 mA - standardized bias point for measuring VZ and ZZ |
| Dynamic Impedance (ZZ) | 5 Ω max - low AC resistance ensures stable voltage under dynamic load changes |
| Max Zener Current (IZM) | 120 mA - maximum continuous DC current at 25 °C lead temperature with adequate heatsinking |
| Surge Current (IZSM) | 120 A - peak non-repetitive 8.3 ms half-sine surge capability for transient suppression |
| Voltage Regulation (ΔVZ) | 0.60 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Thermal Resistance (RθJL) | 25 °C/W - junction-to-lead resistance enables thermal design with 3/8″ lead length |
Pinout & Package
T-18 axial-leaded plastic package with cathode indicated by color band; leads are annealed matte-tin plated (RoHS compliant) and solderable per MIL-STD-750 Method 2026. Device is polarized: cathode (banded end) must be held positive relative to anode for Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; reverse-biased configuration requires cathode at higher potential |
| Cathode | Regulated output node | Banded end; provides stable 27 V reference when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables high-accuracy voltage references without external trimming in analog power control circuits |
| Moisture sensitivity Level 1 | No dry pack required prior to assembly-reduces handling cost and avoids moisture-related popcorning |
| ESD immunity per MIL-STD-750 Method 1020 | Eliminates need for additional ESD protection in board-level handling and automated placement |
| 5.0 W power rating with 25 °C/W RθJL | Supports robust thermal management using simple lead-length heatsinking instead of complex PCB copper pours |
| e3 RoHS-compliant plating | Meets global environmental compliance requirements without sacrificing solderability or long-term reliability |
Applications
| Industrial Power Supply Reference | Overvoltage Clamp in DC-DC Converters |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated flyback converters operating from 24 V or 48 V rails. IC Role / Device Role / Timing Role: Zener diode providing precise 27 V reference to optocoupler input or TL431 shunt regulator. Use Value: Tight ±2% tolerance and low ΔVZ (0.60 V) minimize output voltage drift across line/load/temperature variations. |
Use Scenario: Protecting gate drivers and MOSFETs from voltage spikes during switching transients in buck regulators. IC Role / Device Role / Timing Role: Clamping element absorbing energy from inductive kickback or ringing events. Use Value: 120 A surge rating and low ZZ (5 Ω) enable fast, repeatable clamping without thermal runaway under repetitive stress. |
| Programmable Logic Controller (PLC) Input Protection | Test Equipment Voltage Calibration Standard |
Use Scenario: Safeguarding 24 V digital input modules against field-wiring faults and induced surges. IC Role / Device Role / Timing Role: Primary overvoltage limiter placed before TVS diodes and series resistors in input protection networks. Use Value: Stable 27 V breakdown with minimal voltage shift (ΔVZ ≤ 0.60 V) ensures predictable trip point and prevents false triggering. |
Use Scenario: Serving as a traceable 27 V reference in benchtop multimeter calibration fixtures and automated test systems. IC Role / Device Role / Timing Role: Precision voltage standard replacing bulkier IC-based references where simplicity and long-term stability are critical. Use Value: ±2% initial tolerance and low temperature coefficient (implied by 25 °C/W RθJL and -65 °C to +150 °C range) support repeatable calibration across ambient shifts. |
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 VZ, but ±5% tolerance (B suffix) and 50 Ω ZZ vs. 5 Ω | Lower accuracy and higher impedance limit use in precision feedback; suitable for general-purpose clamping | Select 1N5361B only if ±5% tolerance and relaxed regulation performance are acceptable |
| MMSZ5259ET1G | Surface-mount SOD-123 package, 27 V ±5%, 500 mW rating, 35 Ω ZZ | Not interchangeable due to 5× lower power rating and different thermal path; limited to low-current biasing | Choose MMSZ5259ET1G only for space-constrained PCBs where 5 W dissipation is unnecessary |
Compared with 1N5361B and MMSZ5259ET1G, the 1N5361CE3/TR12 delivers superior voltage accuracy (±2% vs. ±5%), lower dynamic impedance (5 Ω vs. ≥35 Ω), and higher power handling (5 W vs. 0.5 W), making it uniquely suited for industrial-grade regulation and clamping where thermal robustness and precision are co-required.
Availability
1N5361CE3/TR12 is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage clamp in DC-DC converters, and PLC input protection requiring stable component supply, consistent RoHS compliance, and verified surge endurance.
Supply support for 1N5361CE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized 5 W Zener regulation in harsh-environment power systems, emphasizing thermal resilience, surge survivability, and long-term parametric stability.
FAQ
What is the Zener voltage tolerance of the 1N5361CE3/TR12?
The 1N5361CE3/TR12 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its actual breakdown voltage falls within 26.46 V to 27.54 V at 50 mA test current and 25 °C lead temperature, enabling high-accuracy voltage referencing in feedback networks and calibration circuits.
How does the 1N5361CE3/TR12 handle thermal dissipation?
The 1N5361CE3/TR12 achieves 5.0 W steady-state power dissipation at 25 °C lead temperature (3/8″ from body) with a junction-to-lead thermal resistance of 25 °C/W. When mounted on FR4 PCB with 1 oz copper, its derated power drops to 1.47 W at 25 °C ambient-requiring attention to lead length and copper area for full-power operation.
Is the 1N5361CE3/TR12 RoHS compliant?
Yes, the "e3" suffix in 1N5361CE3/TR12 explicitly indicates RoHS compliance. Its leads feature annealed matte-tin plating per MIL-STD-750 Method 2026, eliminating lead content while maintaining solderability and long-term intermetallic stability under thermal cycling.
What is the maximum surge current rating for the 1N5361CE3/TR12?
The 1N5361CE3/TR12 is rated for a non-repetitive peak surge current (IZSM) of 120 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating supports reliable transient suppression in motor drives, relay coils, and inductive load switching applications without degradation.
Does the 1N5361CE3/TR12 require dry packing before reflow?
No, the 1N5361CE3/TR12 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it is not moisture-sensitive and requires no dry pack or baking prior to surface-mount assembly. Its void-free epoxy encapsulation inherently prevents moisture ingress during storage and reflow.
1N5361CE3/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):
- 27 V
- Tolerance:
- ±2%
- 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
1N5361CE3/TR12 FAQ
1.How can I place an order for 1N5361CE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5361CE3/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 1N5361CE3/TR12 reliable?
The price and inventory of 1N5361CE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5361CE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5361CE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5361CE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5361CE3/TR12?
1N5361CE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5361CE3/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 1N5361CE3/TR12?
For technical support, including 1N5361CE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5361CE3/TR12 requirements.
6.How does Aetrix verify that 1N5361CE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5361CE3/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 1N5361CE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5361CE3/TR12?
All 1N5361CE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5361CE3/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 1N5361CE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5361CE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5361CE3/TR12 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
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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
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BZT52C3V6LP-7
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SMAZ12-13-F
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