My Inquiry
My Account
Microchip Technology 1N5372CE3/TR13
- Part No.:
- 1N5372CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5372CE3/TR13.pdf
- Description:
- DIODE ZENER 62V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,674
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5372CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 62 V, ±2% tolerance (C suffix), 20 mA test current, 42 Ω dynamic impedance at 20 mA, and 400 A surge current rating. It regulates voltage in power supply feedback loops and overvoltage protection circuits across industrial and telecom systems.
For engineers reviewing the 1N5372CE3/TR13 datasheet, 1N5372CE3/TR13 pinout, 1N5372CE3/TR13 application, or 1N5372CE3/TR13 equivalent, this page delivers verified electrical specs, thermal derating behavior, RoHS-compliant plating details, and direct alternatives for stable 62 V reference design.
Technical Context
This Zener operates in reverse breakdown with cathode-banded polarity, requiring the banded end to be held positive relative to the anode. Its 25 °C/W junction-to-lead thermal resistance enables 5 W dissipation at TL < 25 °C with 3/8″ lead length, while FR4 mounting reduces steady-state power to 1.47 W at TA = 25 °C.
Voltage regulation (ΔVZ) is specified as 2.1 V - the difference between measurements at 10% and 50% of IZM - and dynamic knee impedance (ZZK) is 76 Ω at 1.0 mA, confirming stable low-current regulation performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±2% - precise reference for feedback networks requiring tight tolerance |
| Test Current (IZT) | 20 mA - standard bias point for VZ measurement and circuit design alignment |
| Dynamic Impedance (ZZ) | 42 Ω at 20 mA - low AC impedance ensures minimal output voltage variation under load transients |
| Max Surge Current (IZSM) | 400 A (8.3 ms half-sine) - withstands lightning-induced or switching-induced transient energy |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires heatsinking or short lead length for full-rated operation |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal modeling for PCB layout and reliability prediction |
| Reverse Leakage (IR) | 0.5 μA at 47.1 V - negligible standby current in high-impedance sensing paths |
Pinout & Package
Package: Axial-leaded T-18 plastic case (Void-free transfer-molded thermosetting epoxy, UL94V-0 rated); leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026; cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail in shunt regulator configuration |
| Cathode (banded end) | Regulated output node | Provides stable 62 V reference when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables accurate voltage setting without post-calibration in precision power supplies |
| RoHS-compliant e3 suffix | Meets global environmental compliance requirements without lead content or exemptions |
| 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 special ESD workstations |
| High surge current rating (400 A) | Provides robust transient immunity in unprotected input stages without external TVS |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Used in the optocoupler feedback path of isolated DC-DC converters to regulate output voltage against line/load variations. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 62 V threshold to error amplifier input. Use Value: ±2% tolerance ensures output regulation within ±1% over temperature and aging, meeting telecom power spec GR-1089. | Use Scenario: Placed across DC bus rails in motor drives to clamp transient spikes exceeding 62 V. IC Role / Device Role / Timing Role: Passive crowbar element that conducts only above 62 V, diverting surge energy to ground. Use Value: 400 A surge rating absorbs 8.3 ms transients without degradation, eliminating need for parallel TVS devices. |
| Industrial Sensor Excitation | Programmable Reference Source |
Use Scenario: Supplies stable excitation voltage to bridge-based pressure sensors in harsh factory environments. IC Role / Device Role / Timing Role: Precision Zener reference driving constant-current source for sensor biasing. Use Value: Low ΔVZ (2.1 V) and 76 Ω ZZK at 1 mA ensure excitation stability across 10–100 μA load variations. | Use Scenario: Paired with DAC output in programmable power supply to generate adjustable 62 V setpoint. IC Role / Device Role / Timing Role: Secondary reference stabilizing DAC output against drift and noise. Use Value: 25 °C/W RθJL allows direct solder-mounting to copper pour for thermal stability in lab-grade instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372B | Same 62 V nominal, but ±5% tolerance (B suffix) and higher ZZ = 47 Ω at 20 mA | Acceptable where tighter regulation not required; lower cost for non-critical references | Select when ±5% VZ meets system accuracy budget and cost sensitivity outweighs regulation precision |
| MMSZ5259ET1G | Surface-mount SOD-123 package, 62 V ±5%, 500 mW rating, 100 Ω ZZ at 20 mA | Not suitable for 5 W continuous dissipation; limited to low-power signal-level clamping | Choose only for space-constrained PCBs where power dissipation ≤500 mW and board-level thermal management is available |
Compared with 1N5372B and MMSZ5259ET1G, the 1N5372CE3/TR13 delivers superior voltage precision and thermal capability for high-reliability 5 W shunt regulation, while the alternatives trade accuracy or power handling for cost or footprint reduction.
Availability
1N5372CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifier modules, and motor drive protection circuits requiring stable component supply and long-term obsolescence management.
Supply support for 1N5372CE3/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 1N53xx series was designed specifically for ruggedized 5 W Zener regulation in environments demanding wide temperature operation (−65 °C to +150 °C), high surge immunity, and moisture-insensitive packaging.
FAQ
What is the Zener voltage tolerance of the 1N5372CE3/TR13?
The 1N5372CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its measured VZ at 20 mA and 25 °C falls within 60.76 V to 63.24 V. This tight tolerance supports precision feedback and reference applications where calibration margin is constrained.
Does the 1N5372CE3/TR13 require dry packing before PCB assembly?
No, the 1N5372CE3/TR13 does not require dry packing. Its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1, meaning it can be stored indefinitely at ambient conditions without baking or humidity-controlled packaging prior to reflow soldering.
What is the maximum continuous power dissipation for the 1N5372CE3/TR13 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz Cu, 4 mm² copper pads, 1 mm track width, 25 mm length), the 1N5372CE3/TR13 has a steady-state power rating of 1.47 W at TA = 25 °C. Derating is required above 25 °C ambient, following the curve in Figure 1 of the datasheet.
How is polarity marked on the 1N5372CE3/TR13?
The 1N5372CE3/TR13 uses a cathode band to indicate polarity: the banded end is the cathode and must be held at a more positive potential than the unbanded (anode) end during normal Zener operation. Reversing polarity subjects it to forward conduction with VF ≤ 1.2 V at 1.0 A.
Can the 1N5372CE3/TR13 replace the 1N5372B in existing designs?
Yes, the 1N5372CE3/TR13 is a direct functional replacement for the 1N5372B in most applications, sharing identical package, pinout, and nominal 62 V rating. However, its ±2% tolerance improves regulation accuracy, and its RoHS-compliant e3 plating replaces legacy tin-lead finishes - both changes may require requalification for legacy qualification programs.
1N5372CE3/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:
- ±2%
- 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
1N5372CE3/TR13 FAQ
1.How can I place an order for 1N5372CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5372CE3/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 1N5372CE3/TR13 reliable?
The price and inventory of 1N5372CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5372CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5372CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5372CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5372CE3/TR13?
1N5372CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5372CE3/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 1N5372CE3/TR13?
For technical support, including 1N5372CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5372CE3/TR13 requirements.
6.How does Aetrix verify that 1N5372CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5372CE3/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 1N5372CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5372CE3/TR13?
All 1N5372CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5372CE3/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 1N5372CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5372CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5372CE3/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
