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Microchip Technology 1N4754PE3/TR12
- Part No.:
- 1N4754PE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4754PE3/TR12.pdf
- Description:
- DIODE ZENER 39V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,720
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Product details
Overview
1N4754PE3/TR12 from Microsemi is a 1.0 W, 39 V ±5% axial-lead Zener diode in DO-41 plastic package, rated for -65°C to +150°C operation, with 6.5 mA test current, 60 Ω dynamic impedance at IZT, and 0.25 A maximum regulator current at TA = 50°C. It provides stable voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4754PE3/TR12 datasheet, 1N4754PE3/TR12 pinout, 1N4754PE3/TR12 application, or 1N4754PE3/TR12 equivalent, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (105°C/W on FR4), surge current rating (1000 mA), RoHS-compliant matte-tin plating, and tape-and-reel packaging (TR12).
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 39 V reference across a wide current range (6.5 mA to 250 mA), with low dynamic impedance ensuring minimal voltage variation under load transients. Its DO-41 plastic encapsulation delivers lower thermal resistance than glass-body variants and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack.
The device exhibits a positive temperature coefficient above ~5 V, with typical TC of +3.5 mV/°C at 39 V, enabling predictable drift compensation in precision references. It is nonsensitive to ESD per MIL-STD-750 Method 1020 and supports soldering at 260°C for 10 s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39 V ±5% at IZT = 6.5 mA - defines nominal regulation point with tight production control |
| Power Dissipation | 1.0 W at TL < 105°C (3/8″ lead length) - sets maximum continuous DC power under defined thermal conditions |
| Dynamic Impedance | 60 Ω at IZT = 6.5 mA - determines AC voltage variation under small-signal ripple or noise |
| Max Regulator Current | 250 mA at TA = 50°C - limits usable current range before thermal runaway or derating |
| Reverse Leakage | 5 μA max at VR = 29.7 V - ensures low standby power loss in high-impedance bias networks |
| Surge Current | 1000 mA (½-sine, 1/120 s) - supports transient overvoltage clamping without failure |
| Thermal Resistance | 105°C/W junction-to-ambient on FR4 (1 oz Cu, 4 mm² pad) - governs board-level thermal design margin |
Pinout & Package
DO-41 (DO-204AL) plastic axial-lead package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded lead | Connected to circuit ground or lower potential node during Zener operation |
| Cathode | Banded lead | Connected to regulated voltage node; must be held positive relative to anode for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant "e3" suffix | Matte-tin terminal plating meeting EU Directive 2011/65/EU, eliminating lead while maintaining solderability |
| Tape-and-reel packaging (TR12) | EIA-296 standard carrier tape with 12 mm reel width, enabling automated SMT placement compatibility |
| Moisture Sensitivity Level 1 | No dry pack required per IPC/JEDEC J-STD-020B - simplifies handling and eliminates bake-out prior to assembly |
| Low thermal resistance (plastic P-suffix) | 45°C/W junction-to-lead vs. higher RθJA of glass-body variants - improves power handling in leaded layouts |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - reduces risk of field failure in unshielded environments |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stable 39 V reference in linear regulator feedback networks or analog sensor excitation circuits. IC Role / Device Role / Timing Role: Voltage reference element providing precise DC bias point independent of input ripple. Use Value: ±5% initial tolerance and low 60 Ω dynamic impedance ensure <±0.3 V output variation under 10 mA load step changes. | Use Scenario: Clamping transient surges on 24–48 V industrial control bus lines. IC Role / Device Role / Timing Role: Shunt protection device diverting excess energy to ground when line voltage exceeds 39 V. Use Value: 1000 mA surge rating enables single-device protection against IEC 61000-4-5 Level 3 surges without external series impedance. |
| Voltage Monitor Threshold | Signal Level Translation |
Use Scenario: Detecting undervoltage or overvoltage conditions in battery-powered telemetry modules. IC Role / Device Role / Timing Role: Precision threshold detector using Zener knee conduction to trigger comparator inputs. Use Value: Sharp 39 V breakdown with 0.25 A IZM allows reliable triggering across -40°C to +85°C ambient without hysteresis circuitry. | Use Scenario: Biasing op-amp inputs or level-shifting logic signals between 5 V and 39 V domains. IC Role / Device Role / Timing Role: Passive clamp limiting signal swing to protect downstream CMOS inputs. Use Value: Low 60 Ω ZZT minimizes signal distortion during clamping, preserving rise/fall time integrity up to 1 MHz. |
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 plating; TR12 not standard - requires dry pack per MSL Level 1 if legacy Pb-free process used | Same electrical specs but non-RoHS; unsuitable for EU/China RoHS-compliant production | Select only for legacy repair or non-regulated markets where Pb exemption applies |
| MMSZ5254ET1G | Surface-mount SOD-123 package; 39 V ±5%; 500 mW rating; 22 Ω ZZT; 200 mA IZM | Lower power and smaller footprint; insufficient for 1 W continuous dissipation; better for space-constrained PCBs | Choose when board area is critical and average power <0.5 W; verify thermal pad layout for 22 Ω ZZT stability |
Compared with 1N4754A and MMSZ5254ET1G, the 1N4754PE3/TR12 uniquely combines full 1 W dissipation capability, RoHS compliance, tape-and-reel automation support, and proven axial-lead reliability in industrial power rails - making it optimal for high-volume, thermally demanding, and compliance-sensitive designs.
Availability
1N4754PE3/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and telecom infrastructure equipment requiring stable component supply and long-term lifecycle continuity.
Supply support for 1N4754PE3/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N47xxAP series was designed specifically for robust, cost-effective voltage regulation in harsh-environment power systems where thermal stability, ESD immunity, and long-term parametric consistency are critical.
FAQ
What is the Zener voltage tolerance for 1N4754PE3/TR12?
The 1N4754PE3/TR12 has a nominal Zener voltage of 39 V with a tolerance of ±5%, as confirmed by the "A" suffix in its JEDEC designation and verified in Microsemi's official datasheet Rev C. This tolerance applies at 6.5 mA test current and 25°C lead temperature. The "e3" suffix indicates RoHS compliance but does not affect voltage specification.
Does 1N4754PE3/TR12 require dry packing before PCB assembly?
No, the 1N4754PE3/TR12 is classified as Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored and assembled without dry pack or baking. This is explicitly stated in the Microsemi datasheet and results from its void-free epoxy encapsulation and hermetic lead seal.
What is the maximum continuous current for 1N4754PE3/TR12 at 70°C ambient?
At 70°C ambient temperature on an FR4 board (1 oz Cu, 4 mm² pad), the 1N4754PE3/TR12 must be derated from its 1.0 W rating. Using the 105°C/W thermal resistance and 150°C max junction temperature, the allowable power drops to ~0.76 W, supporting ~195 mA continuous current - well below its 250 mA IZM rating at 50°C.
Can 1N4754PE3/TR12 replace 1N4754A in existing designs?
Yes, the 1N4754PE3/TR12 is a direct functional and mechanical replacement for 1N4754A, with identical electrical specs, DO-41 package dimensions, and polarity marking. The "e3" suffix adds RoHS-compliant matte-tin plating and TR12 tape-and-reel packaging - no PCB or schematic changes are needed unless legacy Sn/Pb soldering is used.
What is the surge current rating of 1N4754PE3/TR12 and how is it tested?
The 1N4754PE3/TR12 has a maximum surge current (ISM) of 1000 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25°C ambient, superimposed on the 6.5 mA Zener test current. This rating is validated per Microsemi's test methodology described in Note 3 of the datasheet and supports IEC 61000-4-5 transient suppression.
1N4754PE3/TR12 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)
1N4754PE3/TR12 FAQ
1.How can I place an order for 1N4754PE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4754PE3/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 1N4754PE3/TR12 reliable?
The price and inventory of 1N4754PE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4754PE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N4754PE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4754PE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4754PE3/TR12?
1N4754PE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4754PE3/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 1N4754PE3/TR12?
For technical support, including 1N4754PE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4754PE3/TR12 requirements.
6.How does Aetrix verify that 1N4754PE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N4754PE3/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 1N4754PE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N4754PE3/TR12?
All 1N4754PE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4754PE3/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 1N4754PE3/TR12 part is unused and in its original packaging.
Return procedure for 1N4754PE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4754PE3/TR12 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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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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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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BZT52C3V6LP-7
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SMAZ12-13-F
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