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Microchip Technology 1N4752CPE3/TR8
- Part No.:
- 1N4752CPE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4752CPE3/TR8.pdf
- Description:
- DIODE ZENER 33V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,620
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Product details
Overview
1N4752CPE3/TR8 from Microsemi is a 33 V, ±2% tolerance, 1 W axial-lead silicon Zener diode in DO-41 plastic package, rated for 7.5 mA test current, 27 Ω dynamic impedance at IZT, and 135 mA maximum regulator current at TA = 50°C. It provides precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4752CPE3/TR8 datasheet, 1N4752CPE3/TR8 pinout, 1N4752CPE3/TR8 application, or 1N4752CPE3/TR8 equivalent, key selection factors include its tight 2% VZ tolerance, low ZZT of 27 Ω, RoHS-compliant matte-tin plating, tape-and-reel packaging (TR8), and -65°C to +150°C operating temperature range.
Technical Context
This Zener operates in reverse breakdown to maintain stable 33 V output across a wide current range (1–135 mA) and temperature span (-65°C to +150°C). Its 27 Ω dynamic impedance at 7.5 mA ensures minimal voltage variation under load transients.
The device uses a void-free thermosetting epoxy case (UL94V-0), tin-lead or RoHS-compliant matte-tin terminals, and cathode band polarity marking. Thermal resistance is 45°C/W junction-to-lead (3/8" lead length) and 105°C/W junction-to-ambient on FR4 with defined copper pad geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V ±2% at 7.5 mA - enables precise 33 V reference generation with low initial error |
| Power Dissipation | 1.0 W at TL < 105°C - supports continuous regulation in compact through-hole layouts |
| Dynamic Impedance (ZZT) | 27 Ω at IZT = 7.5 mA - minimizes output voltage shift during current changes |
| Max Regulator Current (IZM) | 135 mA at TA = 50°C - defines safe upper current limit before thermal runaway |
| Reverse Leakage (IR) | 5 μA max at VR = 25.1 V - ensures low standby power loss in high-impedance bias networks |
| Forward Voltage | 1.2 V max at 200 mA - allows use as clamp or protection diode in forward conduction |
| Operating Temperature | -65°C to +150°C - suitable for industrial, automotive, and aerospace environments |
Pinout & Package
Package: DO-41 (DO-204AL) plastic axial-leaded package with cathode indicated by color band; RoHS-compliant matte-tin plating; weight 0.7 g; UL94V-0 epoxy body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower-potential node in Zener regulation; carries full IZ current in reverse bias |
| Cathode | Banded end | Connected to higher-potential node; defines regulated output voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Reduces calibration overhead in precision reference designs versus standard ±5% parts |
| RoHS-compliant "e3" termination | Meets global environmental compliance without sacrificing solderability or reliability |
| Tape-and-reel packaging (TR8 suffix) | Enables automated SMT-compatible placement despite axial-leaded form factor |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints for production handling |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and ESD protection circuitry in final assembly |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator ICs or discrete op-amp-based regulators. IC Role / Device Role / Timing Role: Provides fixed 33 V reference point for error amplifier comparison. Use Value: Tight ±2% tolerance ensures output accuracy within 0.66 V without trimming resistors. | Use Scenario: Protecting microcontroller I/O pins from transient voltage spikes exceeding 33 V. IC Role / Device Role / Timing Role: Shunts excess energy to ground when input exceeds 33 V + Zener knee voltage. Use Value: Low 27 Ω ZZT enables fast clamping response and limits peak voltage excursion. |
| Voltage Monitor Threshold | Current Source Bias |
Use Scenario: Detecting undervoltage or overvoltage conditions in battery-powered instrumentation. IC Role / Device Role / Timing Role: Serves as threshold element in comparator input network. Use Value: Stable 33 V reference with <±0.1%/°C tempco enables reliable trip-point stability. | Use Scenario: Generating constant current for LED bias or sensor excitation circuits. IC Role / Device Role / Timing Role: Forms stable current sink with series resistor using VZ as reference. Use Value: 1 W rating supports up to ~30 mA bias current with adequate thermal margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4752A | Same 33 V, ±5% tolerance; no "C" or "e3" suffix; leaded, non-RoHS | Lower accuracy; requires Pb-based solder process; not compliant with EU RoHS Directive | Select only for legacy Pb-based assembly or cost-sensitive non-compliant designs |
| BZX55C33 | 33 V, ±5% tolerance; DO-35 glass package; 500 mW rating; different thermal resistance | Lower power capability; higher ZZT (~50 Ω); less robust moisture resistance (not Level 1) | Use where smaller footprint is critical and 1 W dissipation is unnecessary |
Compared with 1N4752A and BZX55C33, the 1N4752CPE3/TR8 delivers tighter voltage control, RoHS compliance, and higher power handling-making it optimal for new industrial designs requiring long-term supply stability and regulatory alignment.
Availability
1N4752CPE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, automotive control modules, and test equipment requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for 1N4752CPE3/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 1N47xxAP series was engineered for precision voltage regulation in harsh-environment systems where long-term stability, wide temperature operation, and MIL-grade screening options are required.
FAQ
What is the Zener voltage tolerance of the 1N4752CPE3/TR8?
The 1N4752CPE3/TR8 has a ±2% Zener voltage tolerance at 7.5 mA test current, as indicated by the "C" suffix per Microsemi's documentation. This means its nominal 33 V rating falls between 32.34 V and 33.66 V under specified test conditions, enabling higher accuracy than standard ±5% Zeners like the 1N4752A.
Does the 1N4752CPE3/TR8 meet RoHS requirements?
Yes, the 1N4752CPE3/TR8 complies with RoHS directives due to its "e3" suffix, denoting RoHS-compliant matte-tin plating on terminations. It replaces lead-based finishes while maintaining solderability per MIL-STD-750 Method 2026 and eliminates hazardous substances per EU Directive 2011/65/EU.
What package type is used for the 1N4752CPE3/TR8?
The 1N4752CPE3/TR8 uses the DO-41 (JEDEC DO-204AL) axial-leaded plastic package with a void-free UL94V-0 epoxy body. Its dimensions conform to standard DO-41 outlines, and the cathode is marked by a visible band on the banded end of the cylindrical body.
What is the maximum power dissipation of the 1N4752CPE3/TR8 at ambient temperature?
The 1N4752CPE3/TR8 dissipates 1.0 W at TA < 45°C when mounted on an FR4 PCB with 4 mm² copper pads and 1 mm track width, per Microsemi's thermal characterization. Power must be derated linearly above 45°C ambient, reaching zero at 150°C.
How does the 1N4752CPE3/TR8 differ from the 1N4752A?
The 1N4752CPE3/TR8 differs from the 1N4752A in three key ways: it includes ±2% voltage tolerance ("C"), RoHS-compliant terminations ("e3"), and tape-and-reel packaging ("TR8"). The base 1N4752A offers only ±5% tolerance and Pb-based plating, making the 1N4752CPE3/TR8 suitable for modern compliant production with tighter regulation needs.
1N4752CPE3/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):
- 33 V
- Tolerance:
- ±2%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 25.1 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)
1N4752CPE3/TR8 FAQ
1.How can I place an order for 1N4752CPE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4752CPE3/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 1N4752CPE3/TR8 reliable?
The price and inventory of 1N4752CPE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4752CPE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4752CPE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4752CPE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4752CPE3/TR8?
1N4752CPE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4752CPE3/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 1N4752CPE3/TR8?
For technical support, including 1N4752CPE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4752CPE3/TR8 requirements.
6.How does Aetrix verify that 1N4752CPE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4752CPE3/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 1N4752CPE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4752CPE3/TR8?
All 1N4752CPE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4752CPE3/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 1N4752CPE3/TR8 part is unused and in its original packaging.
Return procedure for 1N4752CPE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4752CPE3/TR8 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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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
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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