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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Microchip Technology 1N4754E3/TR13

Name: 1N4754E3/TR13
Brand: Microchip Technology
SKU: 1N4754E3/TR13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N4754E3/TR13

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: 1N4754E3/TR13.pdf

Description:: DIODE ZENER 39V 1W DO204AL

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Product details

Overview

1N4754E3/TR13 from Microsemi is a 39 V, ±5% tolerance, 1 W axial-lead silicon Zener diode in DO-41 (DO-204AL) plastic package, rated for 6.5 mA test current, 23 Ω dynamic impedance at I_ZT, and 1000 mA maximum regulator current at T_A = 50°C - used for precision voltage reference and overvoltage protection in linear power supplies and analog sensor interfaces.

For engineers reviewing the 1N4754E3/TR13 datasheet, 1N4754E3/TR13 pinout, 1N4754E3/TR13 application, or 1N4754E3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (45°C/W junction-to-lead), surge current rating (1000 mA), RoHS-compliant matte-tin plating, and JEDEC-standard DO-41 mechanical compatibility.

Technical Context

This Zener operates in reverse breakdown to maintain stable 39 V regulation across 1–1000 mA operating current range, with low knee impedance (23 Ω at 0.65 mA) ensuring sharp turn-on and minimal voltage drift under varying load. Its plastic encapsulation delivers Level 1 moisture sensitivity (J-STD-020B), eliminating dry-pack requirements.

The device features a cathode band polarity indicator, 1.2 V forward voltage max at 200 mA, and is rated for 260°C/10 s soldering. Thermal derating begins above 45°C ambient on FR4 board or 105°C lead temperature at 3/8″ from body.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	39 V ±5% at I_ZT = 6.5 mA - defines nominal regulation point with tight production control for reference stability
Power Dissipation	1.0 W at T_L ≤ 105°C (3/8″ lead length) - sets maximum continuous DC power handling before thermal shutdown
Dynamic Impedance	23 Ω at I_ZT = 6.5 mA - determines output voltage variation under small-signal AC load changes
Max Regulator Current	1000 mA at T_A = 50°C - specifies peak steady-state reverse current before thermal runaway
Reverse Leakage	5 μA max at V_R = 29.7 V - ensures low quiescent current in standby or high-impedance bias networks
Thermal Resistance	45°C/W junction-to-lead - enables accurate junction temperature estimation for reliability modeling
Surge Current	1000 mA (½-sine, 1/120 s) - supports transient overvoltage clamping without degradation

Pinout & Package

Package: DO-41 (JEDEC DO-204AL), axial-lead plastic molded epoxy case (UL94V-0), 0.7 g weight, cathode indicated by colored band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference ground	Connected to circuit ground or lower-potential node; reverse-biased operation requires cathode at higher potential
Cathode	Zener regulation terminal / voltage reference output	Banded end; connected to unregulated input rail to clamp output at 39 V ±5% during overvoltage events

Key Features

Feature	Design Value
RoHS-compliant matte-tin plating	Enables lead-free reflow assembly per J-STD-020 while maintaining solderability and corrosion resistance
Level 1 moisture sensitivity	Eliminates dry-pack requirement and floor-life constraints for automated PCB assembly
JEDEC-registered 1N47xxA series	Guarantees mechanical and electrical interchangeability with legacy designs using same part numbering convention
Nonsensitive to ESD (MIL-STD-750 Method 1020)	Supports handling in standard lab environments without special static-control protocols
Plastic P-suffix construction	Provides lower thermal resistance vs. glass-body G-suffix variants, improving power handling in compact layouts

Applications

Linear Power Supply Regulation	Analog Sensor Biasing
Use Scenario: Stabilizing +39 V reference rail in discrete linear regulators feeding op-amp front-ends or ADC drivers. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and error amplifier bias source. Use Value: Maintains 39 V ±5% across 1–500 mA load range with <23 Ω dynamic impedance, minimizing ripple-induced output variation.	Use Scenario: Providing precise excitation voltage to resistive bridge sensors (e.g., strain gauges) in industrial measurement systems. IC Role / Device Role / Timing Role: Stable voltage source establishing known bridge bias point for ratiometric signal conditioning. Use Value: Delivers 39 V reference with <5 μA leakage at 29.7 V, preventing sensor offset drift due to parasitic current paths.
Overvoltage Clamp Protection	Microcontroller Reset Circuit
Use Scenario: Clamping 48 V DC bus transients to protect downstream 3.3 V/5 V logic rails in industrial controllers. IC Role / Device Role / Timing Role: Shunt protector absorbing surge energy during line faults or inductive kickback events. Use Value: Sustains 1000 mA surge current (½-sine, 1/120 s) without parametric shift, preserving system-level fault resilience.	Use Scenario: Generating clean reset threshold for microcontrollers requiring 39 V-triggered brown-out detection. IC Role / Device Role / Timing Role: Precision voltage threshold element enabling deterministic reset assertion at defined supply level. Use Value: Leverages ±5% V_Z tolerance and low knee impedance (23 Ω) to ensure repeatable 39 V trip point across temperature and aging.

Linear Power Supply Regulation

Analog Sensor Biasing

Use Scenario: Stabilizing +39 V reference rail in discrete linear regulators feeding op-amp front-ends or ADC drivers.

IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and error amplifier bias source.

Use Value: Maintains 39 V ±5% across 1–500 mA load range with <23 Ω dynamic impedance, minimizing ripple-induced output variation.

Use Scenario: Providing precise excitation voltage to resistive bridge sensors (e.g., strain gauges) in industrial measurement systems.

IC Role / Device Role / Timing Role: Stable voltage source establishing known bridge bias point for ratiometric signal conditioning.

Use Value: Delivers 39 V reference with <5 μA leakage at 29.7 V, preventing sensor offset drift due to parasitic current paths.

Overvoltage Clamp Protection

Microcontroller Reset Circuit

Use Scenario: Clamping 48 V DC bus transients to protect downstream 3.3 V/5 V logic rails in industrial controllers.

IC Role / Device Role / Timing Role: Shunt protector absorbing surge energy during line faults or inductive kickback events.

Use Value: Sustains 1000 mA surge current (½-sine, 1/120 s) without parametric shift, preserving system-level fault resilience.

Use Scenario: Generating clean reset threshold for microcontrollers requiring 39 V-triggered brown-out detection.

IC Role / Device Role / Timing Role: Precision voltage threshold element enabling deterministic reset assertion at defined supply level.

Use Value: Leverages ±5% V_Z tolerance and low knee impedance (23 Ω) to ensure repeatable 39 V trip point across temperature and aging.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4754A	No "e3" RoHS suffix; Sn/Pb terminations; same V_Z, I_ZT, Z_ZT, and package	Not suitable for lead-free assembly; otherwise identical functional behavior in non-RoHS-compliant designs	Select 1N4754A only when Sn/Pb soldering is required and RoHS exemption applies
MMSZ4704T1G	Surface-mount SOD-123 package; 39 V ±5%; 500 mW rating; 30 Ω Z_ZT; different thermal profile	Requires PCB layout change; lower power rating limits use in >500 mA regulation roles	Choose MMSZ4704T1G only for space-constrained, low-power SMT designs where DO-41 footprint is unavailable

Compared with 1N4754A and MMSZ4704T1G, the 1N4754E3/TR13 uniquely combines RoHS compliance, 1 W power capability, DO-41 axial mounting, and JEDEC-standardized 39 V regulation - making it optimal for through-hole industrial power and protection circuits requiring full lead-free manufacturing support.

Availability

1N4754E3/TR13 is available at Aetrix Electronics and suitable for linear power supply regulation, analog sensor biasing, overvoltage clamp protection, and microcontroller reset circuit applications requiring stable component supply and full RoHS compliance.

Supply support for 1N4754E3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.

The 1N47xxA Zener series was designed for general-purpose voltage regulation and protection in ruggedized power systems where JEDEC-standardized performance, thermal robustness, and long-term parametric stability are critical.

FAQ

What is the Zener voltage tolerance of the 1N4754E3/TR13?

The 1N4754E3/TR13 has a nominal Zener voltage of 39 V with a ±5% tolerance, as confirmed by its "A" suffix per JEDEC registration. This tolerance applies at 6.5 mA test current and 25°C lead temperature. The "e3" suffix indicates RoHS-compliant matte-tin plating but does not affect voltage specification. Tighter tolerances (±2%, ±1%) require "C" or "D" suffixes, which are not present in this part number.

Does the 1N4754E3/TR13 support lead-free soldering processes?

Yes, the 1N4754E3/TR13 supports lead-free soldering with a maximum temperature of 260°C for 10 seconds, per MIL-STD-750 Method 2026. Its "e3" suffix denotes RoHS-compliant annealed matte-tin plating, qualified for Pb-free reflow profiles. The device's UL94V-0 epoxy body and thermal resistance (45°C/W junction-to-lead) ensure reliability under standard J-STD-020-compliant thermal cycles.

What is the maximum continuous current the 1N4754E3/TR13 can regulate at room temperature?

The 1N4754E3/TR13 can regulate up to 1000 mA continuously at T_A = 50°C, as specified in the "MAXIMUM REGULATOR CURRENT (I_ZM)" column of the Electrical Characteristics table. At 25°C ambient, derating is not required, but practical design must consider thermal resistance (45°C/W junction-to-lead) and PCB copper area to avoid exceeding 150°C junction temperature. Full 1 W dissipation is rated at T_L ≤ 105°C.

How is polarity marked on the 1N4754E3/TR13 package?

The 1N4754E3/TR13 uses a cathode band - a single colored ring near one end of the DO-41 cylindrical body - to indicate the cathode terminal. For proper Zener regulation, the banded end must be held at a higher potential than the anode (unbanded) end. This marking complies with JEDEC DO-204AL standards and is visible under standard visual inspection during manual or automated placement.

Is the 1N4754E3/TR13 suitable for surge protection applications?

Yes, the 1N4754E3/TR13 is rated for 1000 mA surge current (I_SM) using a ½-sine wave pulse of 1/120 second duration at 25°C ambient, making it suitable for transient overvoltage clamping in DC power rails. Its 23 Ω dynamic impedance and sharp knee characteristic (23 Ω at 6.5 mA, 23 Ω at 0.65 mA) ensure fast, predictable clamping response without oscillation or thermal runaway under repetitive surges.

1N4754E3/TR13 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 39 V

Tolerance:: ±10%

Power - Max:: 1 W

Impedance (Max) (Zzt):: 60 Ohms

Current - Reverse Leakage @ Vr:: 5 µA @ 29.7 V

Voltage - Forward (Vf) (Max) @ If:: 1.2 V @ 200 mA

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

1N4754E3/TR13 FAQ

1.How can I place an order for 1N4754E3/TR13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4754E3/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 1N4754E3/TR13 reliable?

The price and inventory of 1N4754E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4754E3/TR13 is usually 5 days.

3.What payment methods are accepted for 1N4754E3/TR13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4754E3/TR13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4754E3/TR13?

1N4754E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4754E3/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 1N4754E3/TR13?

For technical support, including 1N4754E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4754E3/TR13 requirements.

6.How does Aetrix verify that 1N4754E3/TR13 is sourced from the original manufacturer or authorized distributors?

All 1N4754E3/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 1N4754E3/TR13 meets industry standards.

7.What is the process for return or replacement of 1N4754E3/TR13?

All 1N4754E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4754E3/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 1N4754E3/TR13 part is unused and in its original packaging.

Return procedure for 1N4754E3/TR13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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