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Microchip Technology 1N4752CE3/TR13
- Part No.:
- 1N4752CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4752CE3/TR13.pdf
- Description:
- DIODE ZENER 33V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,903
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Product details
Overview
1N4752CE3/TR13 from Microsemi is a 33 V, 1 W axial-lead Zener diode in DO-41 package with ±2% voltage tolerance, 7.5 mA test current, and 45 Ω dynamic impedance at IZT, used for precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4752CE3/TR13 datasheet, 1N4752CE3/TR13 pinout, 1N4752CE3/TR13 application, or 1N4752CE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (45 °C/W junction-to-lead), surge current rating (1000 mA), RoHS-compliant matte-tin plating, and tape-and-reel packaging (TR13).
Technical Context
This device operates in reverse breakdown to maintain stable 33 V output across 1–100 mA regulation current range, with temperature coefficient near +18 mV/°C per Figure 3. Its plastic DO-41 package provides lower thermal resistance than glass-body variants and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack.
It delivers regulated voltage under steady-state DC conditions at lead temperature ≤105 °C or ambient ≤45 °C on FR4 board, with forward voltage ≤1.2 V at 200 mA and ESD immunity per MIL-STD-750 Method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33 V ±2% at 7.5 mA - enables precise reference generation in feedback loops |
| Power Dissipation | 1.0 W at TL < 105 °C - supports continuous regulation in compact linear supplies |
| Dynamic Impedance | 45 Ω at IZT = 7.5 mA - ensures low output variation under load transients |
| Max Reverse Current | 5 μA at VR = 25.1 V - guarantees minimal leakage below knee voltage |
| Surge Current (ISM) | 1000 mA (½-sine, 1/120 s) - withstands short-duration overvoltage events |
| Thermal Resistance | 45 °C/W junction-to-lead (3/8″ lead length) - informs heatsinking requirements |
| Operating Temp | −65 °C to +150 °C - suitable for industrial and automotive under-hood environments |
Pinout & Package
DO-41 (DO-204AL) plastic axial-lead package with cathode indicated by colored 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 | Ground/reference node in Zener configuration | Connected to circuit common; reverse-biased operation requires cathode at higher potential |
| Cathode | Regulated output node | Banded end; held at stable 33 V when reverse current ≥1 mA and ≤100 mA |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Reduces calibration drift in precision references versus standard ±5% (A) parts |
| RoHS-compliant "e3" termination | Enables compliance with EU RoHS Directive 2011/65/EU without process change |
| Tape-and-reel packaging (TR13) | Supports automated SMT placement despite axial-lead form factor via carrier tape |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life tracking for assembly planning |
| Nonsensitive to ESD (MIL-STD-750) | Reduces handling controls during PCB assembly and rework |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Zener diode providing stable 33 V reference for TL431 or optocoupler biasing. Use Value: Tight ±2% tolerance minimizes output voltage deviation across line/load/temperature. | Use Scenario: Supplies excitation voltage to bridge-based pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Precision shunt regulator establishing fixed bias point independent of supply ripple. Use Value: Low dynamic impedance (45 Ω) maintains reference stability amid sensor current modulation. |
| Overvoltage Clamp Protection | Programmable Logic Controller Input Conditioning |
Use Scenario: Clamps transient surges on 24 V DC control bus in motor drive cabinets. IC Role / Device Role / Timing Role: Shunt protector diverting excess energy above 33 V to ground during EFT events. Use Value: 1000 mA surge rating handles repetitive 1 kV/50 Ω EFT bursts per IEC 61000-4-4. | Use Scenario: Sets input threshold for digital input modules accepting 12–30 V nominal signals. IC Role / Device Role / Timing Role: Voltage limiter preventing damage to microcontroller GPIO pins. Use Value: −65 °C to +150 °C operating range ensures reliability in uncontrolled cabinet environments. |
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 "e3" RoHS marking; bulk packaging | Not qualified for RoHS-compliant production; unsuitable for tape-fed assembly | Select only for legacy repair or non-RoHS prototyping |
| BZX84-C33 | SOT-23 surface-mount; 33 V ±5%; 300 mW power rating | Lower power and smaller footprint; not drop-in replacement due to package and derating | Choose for space-constrained PCBs where 1 W dissipation is unnecessary |
Compared with 1N4752A and BZX84-C33, the 1N4752CE3/TR13 offers tighter voltage tolerance, full 1 W capability in axial form, and RoHS-compliant tape-and-reel delivery-making it optimal for new industrial designs requiring regulatory compliance and robust regulation.
Availability
1N4752CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, overvoltage protection circuits, and programmable logic controller input stages requiring stable component supply and long-term lifecycle support.
Supply support for 1N4752CE3/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 1N47xx series was designed specifically for general-purpose, high-stability voltage regulation in cost-sensitive yet thermally demanding applications-balancing precision, ruggedness, and manufacturability in axial-leaded Zener form.
FAQ
What is the Zener voltage tolerance of the 1N4752CE3/TR13?
The 1N4752CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This is confirmed in the Electrical Characteristics table where VZ = 33 V at IZT = 7.5 mA with ±2% limits. It is tighter than the ±5% tolerance of the base 1N4752A variant and supports higher-accuracy regulation in feedback and reference circuits.
Does the 1N4752CE3/TR13 meet RoHS requirements?
Yes, the "e3" suffix explicitly indicates RoHS-compliant matte-tin plating per Microsemi's documentation. The device complies with EU Directive 2011/65/EU, uses lead-free terminations, and is rated for soldering at 260 °C for 10 seconds. This makes the 1N4752CE3/TR13 suitable for environmentally regulated production environments.
What is the maximum surge current rating for the 1N4752CE3/TR13?
The 1N4752CE3/TR13 has a maximum surge current (ISM) rating of 1000 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25 °C ambient. This rating enables the 1N4752CE3/TR13 to absorb transient overvoltages in industrial control and power supply clamp applications without degradation.
What package type does the 1N4752CE3/TR13 use?
The 1N4752CE3/TR13 uses the DO-41 (JEDEC DO-204AL) axial-lead plastic package. Its dimensions, polarity marking (cathode band), and mechanical specifications-including 0.7 g weight and UL94V-0 epoxy body-are documented in the Microsemi datasheet. The TR13 suffix confirms tape-and-reel packaging per EIA-296 standard.
How does thermal resistance affect the 1N4752CE3/TR13's power handling?
The 1N4752CE3/TR13 has a junction-to-lead thermal resistance of 45 °C/W at 3/8″ (10 mm) lead length. This means each watt dissipated raises the junction temperature 45 °C above lead temperature. To sustain 1.0 W continuously, the lead temperature must stay below 105 °C-guiding heatsink design and PCB copper area layout for reliable operation.
1N4752CE3/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):
- 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)
1N4752CE3/TR13 FAQ
1.How can I place an order for 1N4752CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4752CE3/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 1N4752CE3/TR13 reliable?
The price and inventory of 1N4752CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4752CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N4752CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4752CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4752CE3/TR13?
1N4752CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4752CE3/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 1N4752CE3/TR13?
For technical support, including 1N4752CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4752CE3/TR13 requirements.
6.How does Aetrix verify that 1N4752CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N4752CE3/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 1N4752CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N4752CE3/TR13?
All 1N4752CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4752CE3/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 1N4752CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N4752CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4752CE3/TR13 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
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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