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Microchip Technology 1N5371CE3/TR13
- Part No.:
- 1N5371CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5371CE3/TR13.pdf
- Description:
- DIODE ZENER 60V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,251
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Product details
Overview
1N5371CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 60 V, ±2% tolerance (C suffix), 20 mA test current, 40 Ω dynamic impedance at IZT, and maximum reverse leakage of 0.5 μA at 45.5 V. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5371CE3/TR13 datasheet, 1N5371CE3/TR13 pinout, 1N5371CE3/TR13 application, or 1N5371CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (350 A), voltage regulation (ΔVZ = 2.2 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator in reverse-bias mode, maintaining stable output voltage across wide current (20 mA to 79 mA) and temperature (–65 °C to +150 °C) ranges. Its low dynamic impedance (40 Ω at 20 mA) and tight ±2% voltage tolerance ensure minimal deviation under load variation.
The 1N5371CE3/TR13 uses a void-free thermosetting epoxy T-18 package with cathode band marking, rated for 5 W steady-state dissipation at 25 °C lead temperature and 1.47 W on FR4 board. It withstands 8.3 ms half-sine surge currents up to 350 A and exhibits <0.5 μA leakage at 45.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V ±2% - precise regulation point for feedback networks requiring tight voltage stability |
| Test Current (IZT) | 20 mA - operating point where VZ and ZZ are specified; defines standard bias condition |
| Dynamic Impedance (ZZ) | 40 Ω at IZT - low AC resistance ensures minimal voltage shift under dynamic load changes |
| Max Reverse Leakage (IR) | 0.5 μA at 45.5 V - enables low-power standby operation without significant quiescent loss |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C - requires ≥3/8″ (10 mm) lead length from body for full rating |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - supports high-current operation with minimal heatsinking |
| Surge Current (IZSM) | 350 A (8.3 ms half-sine) - handles transient overvoltage events in industrial power rails |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL; void-free UL94V-0 epoxy body; cathode indicated by colored band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; grounded or connected to lower potential in Zener regulation | Terminal opposite banded end; must be held ≤60 V below cathode to maintain regulation |
| Cathode | Current exit terminal in forward bias; connected to regulated voltage node in reverse-bias operation | Banded end; held at stable 60 V reference when reverse-biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables accurate voltage setting without post-calibration in precision reference circuits |
| RoHS-compliant e3 suffix | Meets global environmental compliance requirements without lead-based solder compatibility issues |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints during assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-protected workstations |
| High surge current capability (350 A) | Provides robust transient immunity in unprotected DC bus lines and automotive power systems |
Applications
| Switching Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in flyback converter feedback path using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Precision voltage reference establishing 60 V threshold for secondary-side regulation. Use Value: ±2% tolerance ensures output stays within ±1% of nominal over line/load/temperature, reducing need for trimming. |
Use Scenario: Clamps 48 V DC bus against lightning-induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Two-terminal shunt protector diverting excess energy to ground when bus exceeds 60 V. Use Value: 350 A surge rating absorbs 8.3 ms transients without degradation, extending system uptime. |
| Programmable Reference Source | DC Link Voltage Monitor |
Use Scenario: Sets adjustable threshold in comparator-based battery management system for 48 V Li-ion packs. IC Role / Device Role / Timing Role: Stable 60 V reference input to comparator detecting overvoltage fault conditions. Use Value: Low 40 Ω dynamic impedance minimizes reference drift during fast transient detection cycles. |
Use Scenario: Monitors DC link voltage in motor drive inverters to trigger shutdown before IGBT overvoltage failure. IC Role / Device Role / Timing Role: Zener-based voltage divider element scaling 600 V DC link to safe microcontroller ADC range. Use Value: 0.5 μA leakage at 45.5 V ensures negligible error contribution in high-impedance sensing networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5371BTR | ±5% tolerance (B suffix), same 60 V nominal, identical package and thermal specs | Acceptable where tighter regulation not required; lower cost for non-critical references | Select 1N5371BTR if ±5% tolerance meets system accuracy budget and cost optimization is prioritized |
| SMBJ5371CE3 | Surface-mount SMB package (JEDEC DO-214AA), same 60 V ±2%, 5 W rating, but higher RθJA (85 °C/W) | Used in space-constrained PCBs; requires larger copper area for thermal management vs. axial leads | Select SMBJ5371CE3 only when board layout mandates SMT and thermal design accommodates higher ambient rise |
Compared with 1N5371BTR and SMBJ5371CE3, the 1N5371CE3/TR13 delivers superior voltage accuracy in through-hole designs with simpler thermal implementation, making it optimal for industrial power supplies where reliability and ease of assembly are critical.
Availability
1N5371CE3/TR13 is available at Aetrix Electronics and suitable for switching power supply feedback, industrial overvoltage clamping, and programmable reference source applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5371CE3/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 1N5371CE3/TR13 belongs to Microsemi's legacy 5 W axial Zener family designed for ruggedized voltage regulation in harsh-environment power systems where precision, surge resilience, and long-term stability are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N5371CE3/TR13?
The 1N5371CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its actual regulation voltage falls between 58.8 V and 61.2 V at 20 mA test current and 25 °C lead temperature. The tolerance is guaranteed per JEDEC specification and verified during production screening.
Does the 1N5371CE3/TR13 require dry packing before PCB assembly?
No, the 1N5371CE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it does not absorb sufficient moisture during storage to require dry packing or floor-life controls. It can be assembled directly from tape-and-reel (TR13) packaging without baking or humidity exposure restrictions.
What is the maximum surge current rating for the 1N5371CE3/TR13?
The 1N5371CE3/TR13 is rated for a peak non-recurrent surge current (IZSM) of 350 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating is validated per Microsemi's test methodology and supports use in environments with repetitive line transients or lightning-induced surges.
How is thermal performance specified for the 1N5371CE3/TR13?
The 1N5371CE3/TR13 specifies thermal resistance as 25 °C/W junction-to-lead at 3/8″ (10 mm) lead length from body, enabling full 5 W dissipation. When mounted on FR4 with 4 mm² copper pads, its junction-to-ambient resistance rises to 85 °C/W, limiting steady-state power to 1.47 W at 25 °C ambient.
Is the 1N5371CE3/TR13 compatible with lead-free reflow processes?
Yes, the 1N5371CE3/TR13 features RoHS-compliant matte-tin plating qualified for soldering at 260 °C for 10 seconds, fully supporting lead-free reflow profiles. Its UL94V-0 epoxy body remains stable under these conditions, and no special prebake or flux requirements apply.
1N5371CE3/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):
- 60 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 43 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
1N5371CE3/TR13 FAQ
1.How can I place an order for 1N5371CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5371CE3/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 1N5371CE3/TR13 reliable?
The price and inventory of 1N5371CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5371CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5371CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5371CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5371CE3/TR13?
1N5371CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5371CE3/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 1N5371CE3/TR13?
For technical support, including 1N5371CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5371CE3/TR13 requirements.
6.How does Aetrix verify that 1N5371CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5371CE3/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 1N5371CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5371CE3/TR13?
All 1N5371CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5371CE3/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 1N5371CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5371CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5371CE3/TR13 Tags
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BZT52C5V6T-7
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BZX84C3V3LT1G
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MMSZ4682T1G
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MM5Z5V1ST1G
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