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Microchip Technology 1N5371AE3/TR12
- Part No.:
- 1N5371AE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5371AE3/TR12.pdf
- Description:
- DIODE ZENER 60V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,885
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Product details
Overview
1N5371AE3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 60 V, ±10% tolerance (A suffix), 20 mA test current (IZT), 40 Ω dynamic impedance (ZZ), and maximum reverse current of 0.5 μA at 45.5 V (VR). 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 1N5371AE3/TR12 datasheet, 1N5371AE3/TR12 pinout, 1N5371AE3/TR12 application, or 1N5371AE3/TR12 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-biased mode, maintaining stable output voltage across wide current variation (IZM = 79 mA at TL = 25 °C). Its low dynamic impedance (40 Ω) and tight ΔVZ (2.2 V) ensure minimal voltage drift between 10% and 50% of IZM.
The 1N5371AE3/TR12 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.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V ±10% - defines regulated output level under specified test conditions (IZT = 20 mA) |
| Power Dissipation (Pd) | 5.0 W at TL < 25 °C - requires 3/8″ (10 mm) lead length heat sinking for full rating |
| Dynamic Impedance (ZZ) | 40 Ω - determines small-signal AC voltage variation under load current changes |
| Max Reverse Current (IR) | 0.5 μA at VR = 45.5 V - ensures low leakage in high-impedance bias networks |
| Surge Current (IZSM) | 350 A (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Voltage Regulation (ΔVZ) | 2.2 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design with known power derating slope |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by colored band. Leads are annealed matte-tin plated per MIL-STD-750 Method 2026, RoHS compliant (e3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail; reverse voltage applied across anode–cathode |
| Cathode | Zener regulation output / voltage reference node | Banded end; held at stable 60 V relative to anode when reverse-biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions, electrical behavior, and cross-manufacturer interchangeability |
| ±10% voltage tolerance (A suffix) | Supports cost-sensitive applications where tighter regulation is not required |
| Level 1 moisture sensitivity | 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-safe workstations |
| High surge current capability (350 A) | Enables use as primary or secondary transient voltage suppressor without external series impedance |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stable 60 V reference in linear regulator feedback loop for 48 V telecom power systems. IC Role / Device Role / Timing Role: Zener diode provides precise DC reference voltage to error amplifier input. Use Value: Low ΔVZ (2.2 V) and 40 Ω ZZ maintain regulation accuracy across 10–50% load variation. |
Use Scenario: Clamping circuit protecting downstream DC-DC converter input against 80 V transients. IC Role / Device Role / Timing Role: Shunts excess energy to ground when input exceeds 60 V + margin. Use Value: 350 A surge rating allows single-device clamping without series resistor or TVS co-location. |
| Programmable Voltage Monitor Threshold | Calibration Standard in Test Equipment |
Use Scenario: Setting trip point for undervoltage/overvoltage detection in battery management system. IC Role / Device Role / Timing Role: Forms threshold reference for comparator input in discrete monitoring circuit. Use Value: ±10% tolerance and –65 °C to +150 °C operation support wide-temperature industrial deployment. |
Use Scenario: Factory calibration source for multimeter and power supply voltage accuracy verification. IC Role / Device Role / Timing Role: Stable 60 V reference traceable to production test fixtures. Use Value: Low IR (0.5 μA @ 45.5 V) minimizes loading error on high-impedance measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5371B | Same 60 V nominal VZ, but ±5% tolerance (B suffix) and higher IZT (20 mA vs. same), identical package and thermal specs | Used where tighter regulation stability is required, e.g., precision feedback loops | Select 1N5371B when ±5% tolerance is mandatory; otherwise 1N5371AE3/TR12 offers cost advantage |
| MMSZ5255B-TP | Surface-mount SOD-123 package, 60 V ±5%, 20 mA IZT, 100 mW Pd - not power-compatible | Only suitable for low-power signal-level referencing, not 5 W regulation | Choose MMSZ5255B-TP only for space-constrained PCBs with <100 mW dissipation needs |
Compared with 1N5371B and MMSZ5255B-TP, the 1N5371AE3/TR12 uniquely delivers 5 W axial-leaded regulation at ±10% tolerance with proven surge robustness (350 A), making it optimal for industrial power rail protection where cost, reliability, and thermal margin outweigh tight tolerance requirements.
Availability
1N5371AE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, programmable voltage monitors, and calibration standards requiring stable component supply and long-lifecycle availability.
Supply support for 1N5371AE3/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 1N53xx series was designed for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and extended temperature operation.
FAQ
What is the Zener voltage tolerance of the 1N5371AE3/TR12?
The 1N5371AE3/TR12 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its actual regulation voltage falls between 54 V and 66 V at 20 mA test current and 25 °C lead temperature. The tolerance is confirmed in the manufacturer's electrical characteristics table and applies across the full operating temperature range.
Does the 1N5371AE3/TR12 require dry packing before PCB assembly?
No, the 1N5371AE3/TR12 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it is not hygroscopic and can be stored and assembled without baking or humidity-controlled environments. This simplifies manufacturing logistics and reduces assembly risk.
What is the maximum steady-state current the 1N5371AE3/TR12 can handle at room temperature?
The 1N5371AE3/TR12 supports a maximum Zener current (IZM) of 79 mA at TL = 25 °C with proper heat sinking (3/8″ lead length). This value is derived from its 5 W power rating and upper-tolerance Zener voltage (66 V), ensuring safe operation within thermal limits when mounted per specification.
Can the 1N5371AE3/TR12 be used as a transient voltage suppressor?
Yes, the 1N5371AE3/TR12 is rated for 350 A non-repetitive surge current (8.3 ms half-sine wave), making it suitable for clamping short-duration overvoltages. Its low dynamic impedance and robust epoxy package allow direct integration into protection circuits without additional series limiting components in many industrial designs.
Is the 1N5371AE3/TR12 RoHS compliant?
Yes, the "e3" suffix in 1N5371AE3/TR12 explicitly denotes RoHS compliance. The device uses annealed matte-tin plating on leads and meets EU Directive 2011/65/EU requirements, with no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances above threshold limits.
1N5371AE3/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):
- 60 V
- Tolerance:
- ±10%
- 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
1N5371AE3/TR12 FAQ
1.How can I place an order for 1N5371AE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5371AE3/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 1N5371AE3/TR12 reliable?
The price and inventory of 1N5371AE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5371AE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5371AE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5371AE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5371AE3/TR12?
1N5371AE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5371AE3/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 1N5371AE3/TR12?
For technical support, including 1N5371AE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5371AE3/TR12 requirements.
6.How does Aetrix verify that 1N5371AE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5371AE3/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 1N5371AE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5371AE3/TR12?
All 1N5371AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5371AE3/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 1N5371AE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5371AE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5371AE3/TR12 Tags
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