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Microchip Technology 1N4754APE3/TR8
- Part No.:
- 1N4754APE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4754APE3/TR8.pdf
- Description:
- DIODE ZENER 39V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,068
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Product details
Overview
1N4754APE3/TR8 from Microsemi is a 1.0 W, 39 V ±5% axial-lead silicon Zener diode in DO-41 (DO-204AL) plastic package, rated for -65°C to +150°C operation, with 6.5 mA test current, 23 Ω dynamic impedance at IZT, and 5 μA reverse leakage at 29.7 V. It delivers stable voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4754APE3/TR8 datasheet, 1N4754APE3/TR8 pinout, 1N4754APE3/TR8 application, or 1N4754APE3/TR8 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 tape-and-reel packaging (TR8).
Technical Context
This device operates in reverse breakdown to maintain a stable 39 V reference across a wide current range (1–115 mA), with low knee impedance (23 Ω at 6.5 mA) ensuring sharp regulation onset. Its DO-41 plastic encapsulation provides Level 1 moisture sensitivity and eliminates dry-pack requirements per IPC/JEDEC J-STD-020B.
Thermal performance is defined by two derating paths: 1.0 W at lead temperature <105°C (3/8″ from body) or ambient <45°C on FR4 with specified copper pads. Forward voltage is ≤1.2 V at 200 mA, and ESD robustness is confirmed per MIL-STD-750 Method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39 V ±5% at 6.5 mA - defines precise regulation point for feedback loops and reference rails |
| Power Dissipation | 1.0 W at TL < 105°C - sets maximum continuous power handling under lead-cooled conditions |
| Dynamic Impedance (ZZT) | 23 Ω at IZT = 6.5 mA - indicates low AC impedance for stable regulation under varying load |
| Reverse Leakage Current | 5 μA at VR = 29.7 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Surge Current (ISM) | 1000 mA (½-sine, 1/120 s) - supports transient overvoltage clamping without failure |
| Thermal Resistance | 45°C/W junction-to-lead - enables accurate thermal design when leads serve as primary heat path |
| Operating Temperature | -65°C to +150°C - qualifies for industrial, automotive under-hood, and aerospace environments |
Pinout & Package
Package: DO-41 (DO-204AL), axial-lead plastic case with cathode band marking; RoHS-compliant matte-tin plating; weight 0.7 g; UL94V-0 epoxy body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased during regulation |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to regulated rail; maintains 39 V relative to anode under breakdown |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N47xxAP compliance | Guarantees mechanical interchangeability and standardized electrical behavior across manufacturers |
| Level 1 moisture sensitivity | Enables direct PCB assembly without baking or dry-pack, reducing manufacturing overhead |
| RoHS-compliant "e3" suffix | Meets EU Directive 2011/65/EU with annealed matte-tin plating, compatible with Pb-free soldering |
| Tape-and-reel "TR8" option | Standard EIA-296 packaging for automated pick-and-place placement at volume production scale |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - no special handling required during board assembly |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator circuits or switching converter error amplifiers. IC Role / Device Role / Timing Role: Provides fixed 39 V reference for comparator input or optocoupler biasing. Use Value: Maintains ±5% regulation accuracy across 1–115 mA load range, minimizing output drift. |
Use Scenario: Protecting downstream ICs from transient voltage spikes on DC rails. IC Role / Device Role / Timing Role: Shunts excess energy to ground when rail exceeds 39 V + tolerance. Use Value: Withstands 1000 mA surge current, enabling reliable clamping without degradation. |
| Signal Level Shifting | Temperature-Stable Bias Network |
Use Scenario: Generating fixed bias points for op-amp inputs or transistor base drive in analog front-ends. IC Role / Device Role / Timing Role: Acts as precision voltage clamp to define operating point in high-impedance nodes. Use Value: Low 23 Ω dynamic impedance ensures minimal signal distortion under varying source impedance. |
Use Scenario: Establishing stable reference voltages in sensor conditioning circuits exposed to wide ambient swings. IC Role / Device Role / Timing Role: Delivers predictable 39 V despite -65°C to +150°C operation. Use Value: JEDEC-registered thermal coefficient profile ensures repeatable performance across temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4754A (non-e3, non-TR) | Same 39 V ±5%, DO-41 package, but Sn/Pb plating and bulk packaging | Lacks RoHS compliance and automated assembly support | Select when legacy Pb-based soldering is used and tape-and-reel is unnecessary |
| MMSZ5245B-TP (Micro Commercial) | 39 V ±5%, SOD-123 surface-mount package, 500 mW rating, 30 Ω ZZT | Lower power, smaller footprint, higher thermal resistance (300°C/W) | Select for space-constrained PCBs where 500 mW suffices and reflow compatibility is required |
Compared with 1N4754APE3/TR8, the 1N4754A lacks RoHS compliance and tape-and-reel convenience, while MMSZ5245B-TP trades power and thermal performance for miniaturization-making 1N4754APE3/TR8 optimal for through-hole, high-reliability, 1 W-class regulation.
Availability
1N4754APE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, automotive control modules, and test equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N4754APE3/TR8 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 1N4754APE3/TR8 belongs to Microsemi's legacy 1N47xxAP Zener series, engineered for precision voltage regulation in harsh-environment power systems where stability, thermal resilience, and JEDEC-standard interchangeability are critical.
FAQ
What is the Zener voltage tolerance for 1N4754APE3/TR8?
The 1N4754APE3/TR8 has a nominal Zener voltage of 39 V with a ±5% tolerance, as indicated by the "A" suffix in the part number per JEDEC registration. This tolerance applies at 6.5 mA test current and 25°C lead temperature. The "e3" suffix confirms RoHS compliance, and "TR8" denotes EIA-296 tape-and-reel packaging. 1N4754APE3/TR8 meets this specification across its full operating temperature range.
How does the thermal resistance of 1N4754APE3/TR8 affect PCB layout?
The 1N4754APE3/TR8 specifies 45°C/W junction-to-lead thermal resistance at 3/8″ lead length, meaning effective cooling relies on adequate copper pour and lead termination. For FR4 boards, it requires 4 mm² copper pads and 1 mm track width to achieve 105°C/W junction-to-ambient. Layout must avoid excessive trace length between diode body and heatsinking planes. 1N4754APE3/TR8 performance degrades if leads are shortened below 10 mm or copper area reduced.
Is 1N4754APE3/TR8 suitable for surge protection applications?
Yes - the 1N4754APE3/TR8 is rated for 1000 mA surge current (ISM) using a ½-sine wave pulse of 1/120 second duration at 25°C. This makes it appropriate for clamping short-duration transients in DC power rails, provided average power remains within 1.0 W derating limits. Its 23 Ω dynamic impedance ensures rapid response. 1N4754APE3/TR8 should be paired with series impedance to limit peak surge current to ≤1000 mA.
What does the "TR8" suffix mean in 1N4754APE3/TR8?
The "TR8" suffix indicates standard EIA-296 tape-and-reel packaging: 8 mm carrier tape, 2000 units per reel. This format enables automated pick-and-place assembly in high-volume manufacturing. The "e3" denotes RoHS-compliant matte-tin plating, and "P" confirms plastic DO-41 construction. Together, 1N4754APE3/TR8 delivers full regulatory compliance, manufacturability, and mechanical standardization in one orderable part number.
Can 1N4754APE3/TR8 replace older 1N4754A parts in existing designs?
Yes - 1N4754APE3/TR8 is a direct functional and mechanical replacement for 1N4754A, with identical 39 V ±5% Zener voltage, DO-41 package dimensions, and electrical characteristics. The "e3" and "TR8" enhancements add RoHS compliance and tape-and-reel readiness without altering performance. No PCB or schematic changes are needed; 1N4754APE3/TR8 maintains full interchangeability while upgrading environmental and assembly compatibility.
1N4754APE3/TR8 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:
- ±5%
- 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)
1N4754APE3/TR8 FAQ
1.How can I place an order for 1N4754APE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4754APE3/TR8 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 1N4754APE3/TR8 reliable?
The price and inventory of 1N4754APE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4754APE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4754APE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4754APE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4754APE3/TR8?
1N4754APE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4754APE3/TR8 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 1N4754APE3/TR8?
For technical support, including 1N4754APE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4754APE3/TR8 requirements.
6.How does Aetrix verify that 1N4754APE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4754APE3/TR8 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 1N4754APE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4754APE3/TR8?
All 1N4754APE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4754APE3/TR8, 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 1N4754APE3/TR8 part is unused and in its original packaging.
Return procedure for 1N4754APE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4754APE3/TR8 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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SMAZ12-13-F
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