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Microchip Technology 1N5372E3/TR13
- Part No.:
- 1N5372E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5372E3/TR13.pdf
- Description:
- DIODE ZENER 62V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:3,173
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Product details
Overview
1N5372E3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 62 V, ±5% tolerance (B-suffix equivalent), 20 mA test current, 42 Ω dynamic impedance at IZT, and 400 A surge current rating. 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 1N5372E3/TR13 datasheet, 1N5372E3/TR13 pinout, 1N5372E3/TR13 application, or 1N5372E3/TR13 equivalent, key selection criteria include Zener voltage stability under varying load current, low dynamic impedance at rated test current, thermal resistance junction-to-lead (25 °C/W), RoHS-compliant matte-tin plating, and tape-and-reel packaging for automated assembly.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown. Its regulation performance is defined by VZ = 62 V at IZT = 20 mA, with ΔVZ = 2.1 V (voltage regulation between 10% and 50% of IZM) and ZZK = 76 Ω at 1 mA knee current.
Designed for high-current DC stabilization, it supports maximum steady-state power of 5 W at TL < 25 °C with 3/8″ lead length, derates linearly above 25 °C, and withstands non-recurrent 8.3 ms half-sine surge currents up to 400 A per JEDEC specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at 20 mA - defines stable regulation point across temperature and current variation |
| Power Dissipation | 5.0 W at TL < 25 °C - requires minimum 3/8″ lead length from body for full rating |
| Dynamic Impedance (ZZ) | 42 Ω at 20 mA - determines output voltage deviation under load current changes |
| Surge Current (IZSM) | 400 A peak (8.3 ms half-sine) - enables transient overvoltage clamping without failure |
| Thermal Resistance | 25 °C/W junction-to-lead - dictates heatsinking requirement for continuous operation |
| Reverse Leakage | 0.5 μA at 47.1 V - ensures minimal standby power loss in high-impedance bias networks |
| Operating Temp Range | −65 °C to +150 °C - supports deployment in automotive under-hood and industrial motor drive environments |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; reverse-biased operation requires cathode at higher potential |
| Cathode | Regulated output node | Banded end; connected to voltage source input; maintains 62 V relative to anode when reverse-biased above knee |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard 1N53xxB series mechanical and electrical definitions |
| RoHS-compliant (e3 suffix) | Lead-free matte-tin plating meets EU Directive 2011/65/EU and J-STD-609A Class 1 |
| Tape-and-reel packaging (TR13 suffix) | Standard EIA-296 compliant carrier tape, 13-inch reel, optimized for SMT placement equipment |
| Moisture Sensitivity Level 1 | No dry pack required per IPC/JEDEC J-STD-020B - simplifies handling and storage logistics |
| Nonsensitive to ESD | Withstands >4 kV HBM per MIL-STD-750 Method 1020 - reduces handling precautions during assembly |
Applications
| Industrial Power Supply Regulation | Automotive ECU Reference Voltage |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated flyback converters delivering 24 V/5 A output. IC Role / Device Role / Timing Role: Zener diode provides precise 62 V reference for optocoupler-based secondary-side regulation loop. Use Value: Maintains ±1.5% output voltage accuracy over line/load/temperature with 42 Ω dynamic impedance limiting error contribution. | Use Scenario: Generating stable bias voltage for analog sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Supplies regulated 62 V to high-voltage op-amp rails powering knock sensor amplifiers. Use Value: Ensures consistent amplifier gain and offset performance across −40 °C to +125 °C ambient with <0.5 μA leakage at 47.1 V. |
| Overvoltage Protection Clamp | Programmable Current Source Reference |
Use Scenario: Protecting 48 V telecom rectifier outputs against lightning-induced transients. IC Role / Device Role / Timing Role: Shunts surge energy into ground when line voltage exceeds 62 V + tolerance margin. Use Value: Withstands 400 A 8.3 ms surges without degradation, enabling compliance with ITU-T K.20 immunity requirements. | Use Scenario: Setting reference voltage for constant-current LED driver ICs in streetlight applications. IC Role / Device Role / Timing Role: Provides fixed 62 V reference to current-sense amplifier inputs for 350 mA output regulation. Use Value: Delivers <2.1 V regulation delta across 2–10 mA operating range, minimizing current drift vs. temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372B | Same VZ, IZT, ZZ, and package; differs only in packaging (bulk vs. TR13 tape-and-reel) and RoHS status (non-e3) | Not suitable for automated SMT lines requiring RoHS compliance and reel-fed feeders | Select 1N5372E3/TR13 for RoHS-conforming high-volume production; choose 1N5372B for prototyping or legacy non-RoHS systems |
| MMSZ5255B-TP | Surface-mount SOD-123 package; 62 V ±5%, but lower 500 mW power rating and 100 Ω dynamic impedance at 20 mA | Limited to low-power biasing; cannot replace 1N5372E3/TR13 in 5 W regulation or surge-clamp roles | Use MMSZ5255B-TP only where board space constraints prohibit axial leads and power dissipation ≤0.5 W |
Compared with 1N5372B and MMSZ5255B-TP, the 1N5372E3/TR13 uniquely combines 5 W power handling, 42 Ω low dynamic impedance, RoHS compliance, and EIA-296 tape-and-reel packaging-making it the sole option for high-reliability, high-current, automated-manufacturing Zener applications requiring 62 V regulation.
Availability
1N5372E3/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU reference voltage generation, and overvoltage protection clamp circuits requiring stable component supply with full RoHS compliance and automated assembly support.
Supply support for 1N5372E3/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for robust, high-power voltage regulation in harsh-environment power conversion and protection systems where long-term stability and surge resilience are critical.
FAQ
What is the Zener voltage tolerance of 1N5372E3/TR13?
The 1N5372E3/TR13 has a Zener voltage tolerance of ±5%, as indicated by the "B" designation in its family (1N5372B), which carries forward to the e3/TR13 variant. This means its measured VZ falls between 58.9 V and 65.1 V at 20 mA test current and 25 °C junction temperature, per JEDEC registration and Microsemi's published electrical characteristics table.
Does 1N5372E3/TR13 require dry packing before PCB assembly?
No, the 1N5372E3/TR13 does not require dry packing. It is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored indefinitely at ambient conditions without baking or humidity-controlled packaging prior to reflow soldering.
What is the maximum steady-state current for 1N5372E3/TR13 at 25 °C ambient?
The maximum steady-state Zener current for 1N5372E3/TR13 at 25 °C ambient is not directly specified; instead, its power rating governs operation. At TL < 25 °C (lead temperature, 3/8″ from body), it supports 5.0 W, yielding ~80.6 mA (5 W ÷ 62 V). When mounted on FR4 with 1 oz Cu, its derated power is 1.47 W, limiting current to ~23.7 mA at 62 V.
Can 1N5372E3/TR13 be used in place of 1N5372B in existing designs?
Yes, the 1N5372E3/TR13 is functionally and electrically identical to 1N5372B except for RoHS compliance (e3 suffix) and tape-and-reel packaging (TR13 suffix). Electrical parameters-including VZ, IZT, ZZ, IZM, and thermal resistance-are identical. No circuit or layout changes are needed beyond verifying feeder compatibility with 13-inch reels.
What is the forward voltage drop of 1N5372E3/TR13 at 1.0 A?
The forward voltage drop of 1N5372E3/TR13 is 1.2 V maximum at 1.0 A forward current and 25 °C, as specified in the Maximum Ratings section of the Microsemi datasheet. This value applies only during forward conduction and is not relevant during normal Zener-regulation operation, which occurs in reverse bias.
1N5372E3/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):
- 62 V
- Tolerance:
- ±20%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 42 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 44.6 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
1N5372E3/TR13 FAQ
1.How can I place an order for 1N5372E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5372E3/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 1N5372E3/TR13 reliable?
The price and inventory of 1N5372E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5372E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5372E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5372E3/TR13 transactions.
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4.How is shipping managed for 1N5372E3/TR13?
1N5372E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5372E3/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 1N5372E3/TR13?
For technical support, including 1N5372E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5372E3/TR13 requirements.
6.How does Aetrix verify that 1N5372E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5372E3/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 1N5372E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5372E3/TR13?
All 1N5372E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5372E3/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 1N5372E3/TR13 part is unused and in its original packaging.
Return procedure for 1N5372E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5372E3/TR13 Tags
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