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Microchip Technology 1N5361CE3/TR8
- Part No.:
- 1N5361CE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5361CE3/TR8.pdf
- Description:
- DIODE ZENER 27V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,477
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Product details
Overview
1N5361CE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 27 V, ±2% tolerance (C suffix), 50 mA test current, 5 Ω dynamic impedance at IZT, and maximum surge current of 120 A (8.3 ms half-sine). 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 1N5361CE3/TR8 datasheet, 1N5361CE3/TR8 pinout, 1N5361CE3/TR8 application, or 1N5361CE3/TR8 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), steady-state power rating (5 W at TL < 25 °C), reverse leakage (<0.5 µA at 20.1 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown, where Zener voltage is stabilized across a broad current range (IZM = 120 mA at 27 V). Its low dynamic impedance (5 Ω) and tight ±2% tolerance ensure minimal voltage drift under varying load conditions.
The 1N5361CE3/TR8 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 260 °C soldering (10 s), and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Thermal resistance is specified at 25 °C/W junction-to-lead (3/8″ lead length) and 85 °C/W junction-to-ambient on FR4.
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 - standard bias point for measuring VZ and dynamic impedance |
| Dynamic Impedance (ZZ) | 5 Ω at IZT - low AC resistance ensures stable output under transient load changes |
| Max Regulator Current (IZM) | 120 mA - maximum continuous DC current at 27 V before exceeding 5 W dissipation |
| Surge Current (IZSM) | 120 A (8.3 ms half-sine) - withstands short-duration overvoltage transients without failure |
| Reverse Leakage (IR) | <0.5 µA at 20.1 V - negligible standby current in high-impedance sensing applications |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables high-power operation with minimal heatsinking when leads are used as thermal path |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case (void-free UL94V-0 epoxy), cathode indicated by band; leads plated with RoHS-compliant annealed matte tin per MIL-STD-750 Method 2026.
| 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; held at stable 27 V relative to anode during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables use in precision references without post-calibration in industrial control systems |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU with matte-tin plating; no lead or hazardous substances |
| Level 1 moisture sensitivity | No dry pack or baking required prior to assembly-reduces manufacturing overhead |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special handling during board assembly and testing |
| High surge current rating (120 A) | Provides robust transient suppression in DC power rails exposed to inductive switching |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated 24 V DC-DC converters for PLC I/O modules. IC Role / Device Role / Timing Role: Two-terminal voltage reference providing fixed 27 V reference for error amplifier input. Use Value: ±2% tolerance and 5 Ω dynamic impedance maintain output regulation within ±0.5% across 10–100 mA load variation. |
Use Scenario: Clamping transient spikes on 24 V CAN bus power rail during motor drive switching. IC Role / Device Role / Timing Role: Shunt protector diverting surge energy above 27 V to ground before downstream regulators fail. Use Value: 120 A surge rating absorbs 8.3 ms transients without degradation, preserving system uptime. |
| Programmable Logic Controller (PLC) Input Conditioning | Test Equipment Reference Source |
Use Scenario: Providing stable 27 V bias for optocoupler input stages in 24 V digital input modules. IC Role / Device Role / Timing Role: Precision voltage clamp ensuring consistent LED forward current across temperature. Use Value: Low 0.5 µA leakage at 20.1 V prevents false triggering in high-impedance sensing paths. |
Use Scenario: Serving as primary voltage reference in benchtop multimeter calibration circuits. IC Role / Device Role / Timing Role: Stable DC reference source traceable to factory calibration standards. Use Value: Tight ±2% tolerance and minimal ΔVZ (0.60 V) enable sub-0.1% measurement accuracy over time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5361B | ±5% tolerance (B suffix), same VZ, IZT, ZZ, and package; no e3 RoHS marking | Acceptable where tighter tolerance not required and legacy Pb-based assembly is used | Select 1N5361B only if RoHS compliance is not mandated and cost sensitivity outweighs precision needs. |
| SMBJ5361B | Surface-mount SMB package (JEDEC DO-214AA), same 27 V ±5%, but lower IZM (100 mA) and higher ZZ (6 Ω) | Used in space-constrained PCBs where axial leads are incompatible with automated placement | Choose SMBJ5361B only when board layout requires SMT and thermal design accommodates reduced power derating. |
Compared with 1N5361CE3/TR8, the 1N5361B offers lower cost and identical electrical performance except for tolerance and RoHS status, while SMBJ5361B trades axial mounting flexibility and higher surge capability for compact footprint-neither is pin-compatible due to differing form factors and termination styles.
Availability
1N5361CE3/TR8 is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection circuits, and programmable logic controller (PLC) input conditioning requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5361CE3/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized 5 W Zener regulation in harsh-environment power systems-emphasizing wide temperature operation, surge resilience, and military-grade screening options.
FAQ
What is the Zener voltage tolerance of the 1N5361CE3/TR8?
The 1N5361CE3/TR8 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its measured VZ at 50 mA test current falls between 26.46 V and 27.54 V at 25 °C. This tighter tolerance supports precision regulation tasks where ±5% devices like the 1N5361B would introduce unacceptable error margins.
Does the 1N5361CE3/TR8 require dry packing before reflow soldering?
No, the 1N5361CE3/TR8 has IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, meaning it may be stored and processed without dry pack or baking. Its void-free epoxy T-18 package inherently resists moisture absorption, eliminating pre-assembly handling steps and reducing risk of popcorning during reflow.
What is the maximum continuous current the 1N5361CE3/TR8 can handle at 25 °C?
The 1N5361CE3/TR8 supports a maximum continuous Zener current (IZM) of 120 mA at 25 °C ambient, calculated as Prated/VZ = 5 W / 27 V ≈ 120 mA. This assumes adequate heat sinking via leads; derating applies above 25 °C per Figure 1 in the Microsemi datasheet.
How does the 1N5361CE3/TR8 compare to the 1N5361B in terms of RoHS compliance?
The 1N5361CE3/TR8 is RoHS compliant (e3 suffix), using annealed matte-tin plating per MIL-STD-750, whereas the 1N5361B lacks the e3 designation and retains traditional tin-lead plating. Both share identical electrical specs except for tolerance (±2% vs. ±5%) and environmental compliance-making the 1N5361CE3/TR8 mandatory for EU-market products.
Can the 1N5361CE3/TR8 be used in place of the 1N5361B without changing the PCB layout?
Yes-the 1N5361CE3/TR8 shares the same T-18 axial-leaded package, pinout, and mechanical dimensions as the 1N5361B. No PCB modifications are needed; only the part marking and compliance documentation differ. Engineers may directly substitute it where ±2% tolerance and RoHS compliance are required.
1N5361CE3/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:
- ±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/TR8 FAQ
1.How can I place an order for 1N5361CE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5361CE3/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 1N5361CE3/TR8 reliable?
The price and inventory of 1N5361CE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5361CE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5361CE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5361CE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5361CE3/TR8?
1N5361CE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5361CE3/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 1N5361CE3/TR8?
For technical support, including 1N5361CE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5361CE3/TR8 requirements.
6.How does Aetrix verify that 1N5361CE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5361CE3/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 1N5361CE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5361CE3/TR8?
All 1N5361CE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5361CE3/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 1N5361CE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5361CE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5361CE3/TR8 Tags
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