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Microchip Technology 1N4750CE3/TR13
- Part No.:
- 1N4750CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4750CE3/TR13.pdf
- Description:
- DIODE ZENER 27V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,026
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Product details
Overview
1N4750CE3/TR13 from Microsemi is a 27 V, ±2% tolerance, 1 W silicon Zener diode in DO-41 plastic package, rated for 9.5 mA test current (IZT), 35 Ω dynamic impedance (ZZT), and 5 μA reverse leakage at 20.6 V (VR), used for precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4750CE3/TR13 datasheet, 1N4750CE3/TR13 pinout, 1N4750CE3/TR13 application, or 1N4750CE3/TR13 equivalent, key selection factors include Zener voltage tolerance (±2%), thermal resistance (45 °C/W junction-to-lead), surge current rating (750 mA), RoHS-compliant matte-tin plating, and tape-and-reel packaging (TR13).
Technical Context
This Zener operates in reverse breakdown to maintain stable output voltage across varying load and line conditions. Its 27 V nominal Zener voltage exhibits a positive temperature coefficient above ~5 V, with typical TC of +5.5 mV/°C per Figure 3, enabling predictable drift compensation in analog references.
The device uses a planar-diffused silicon junction with void-free epoxy encapsulation (UL94V-0), rated for -65 °C to +150 °C operation. It delivers regulated voltage with 35 Ω dynamic impedance at 9.5 mA IZT and maintains <0.25 mA maximum regulator current (IZM) at TA = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±2% at 9.5 mA - ensures tight regulation accuracy for feedback references |
| Power Dissipation | 1.0 W at TL < 105 °C - supports continuous operation with 3/8" lead length heat sinking |
| Dynamic Impedance (ZZT) | 35 Ω @ IZT - low AC impedance minimizes output ripple in shunt regulator designs |
| Reverse Leakage (IR) | 5 μA @ 20.6 V - low leakage preserves efficiency in high-impedance bias networks |
| Thermal Resistance | 45 °C/W junction-to-lead - enables thermal design with standard axial-lead PCB mounting |
| Surge Current (ISM) | 750 mA @ 1/120 s - withstands transient overloads without degradation |
| Operating Temperature | -65 °C to +150 °C - suitable for industrial and automotive under-hood environments |
Pinout & Package
DO-41 (DO-204AL) plastic axial-leaded 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 | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node during Zener operation |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to unregulated input to deliver stable 27 V output to load |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without external trimming |
| RoHS-compliant "e3" suffix | Meets global environmental compliance requirements with matte-tin plating |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life constraints for SMT assembly |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates ESD protection circuitry in final design |
| Tape-and-reel packaging (TR13) | Supports automated pick-and-place assembly with standard EIA-296 carrier tape |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing output voltage in linear regulator feedback loops using TL431 alternatives or discrete op-amp comparators. IC Role / Device Role / Timing Role: Zener diode provides precise 27 V reference point for error amplifier input. Use Value: ±2% tolerance ensures output regulation within 0.54 V over temperature, reducing need for post-production calibration. | Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient voltage spikes exceeding 27 V. IC Role / Device Role / Timing Role: Shunt clamping element that conducts excess current when input exceeds 27 V. Use Value: 750 mA surge rating absorbs 100 ns–1 μs transients without failure, extending system reliability. |
| Industrial Sensor Excitation | Programmable Current Source Bias |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or strain gauges in 4–20 mA transmitter front-ends. IC Role / Device Role / Timing Role: Voltage reference source for constant-current generator circuitry. Use Value: Low 35 Ω dynamic impedance maintains <0.1 V deviation under 1 mA load variation, improving measurement linearity. | Use Scenario: Setting bias point for op-amp-based Howland current sources or LED driver references. IC Role / Device Role / Timing Role: Precision voltage node defining current-setting resistor voltage drop. Use Value: Positive temperature coefficient (+5.5 mV/°C) allows predictable drift compensation when paired with NTC thermistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4750A | Same 27 V, ±5% tolerance; no "C" or "e3" suffix; Sn/Pb plating only | Lacks RoHS compliance and tighter tolerance; requires reflow profile adjustment for Pb-free process | Select when legacy Pb-based assembly or cost-sensitive non-RoHS programs apply |
| MMSZ5250B-TP | 27 V, ±5%, SOD-123 package, 500 mW rating, 30 Ω ZZT | Lower power rating and surface-mount form factor limit use to low-current bias networks | Select for space-constrained PCBs where 1 W dissipation is not required |
Compared with 1N4750A and MMSZ5250B-TP, the 1N4750CE3/TR13 offers superior tolerance (±2% vs. ±5%), full RoHS compliance, and higher surge capability (750 mA vs. 500 mA), making it optimal for industrial-grade reference and clamp designs requiring long-term stability.
Availability
1N4750CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, overvoltage protection circuits, and programmable bias networks requiring stable component supply and long-lifecycle support.
Supply support for 1N4750CE3/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N47xxA series was designed specifically for precision voltage regulation in ruggedized power management systems where stability, thermal robustness, and long-term parametric consistency are critical.
FAQ
What is the Zener voltage tolerance of the 1N4750CE3/TR13?
The 1N4750CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This is confirmed in the Electrical Characteristics table on page 2 of the Microsemi datasheet, where 1N4750A (±5%) and 1N4750C (±2%) are explicitly differentiated. The 27 V nominal voltage is guaranteed between 26.46 V and 27.54 V at 9.5 mA test current and 25 °C lead temperature.
Does the 1N4750CE3/TR13 meet RoHS requirements?
Yes, the 1N4750CE3/TR13 meets RoHS requirements, as indicated by the "e3" suffix per Microsemi's documentation. The device uses RoHS-compliant annealed matte-tin plating on its axial leads and void-free UL94V-0 epoxy encapsulation. It is certified to EU Directive 2011/65/EU and fully compliant with lead-free soldering profiles up to 260 °C for 10 seconds.
What is the maximum surge current rating for the 1N4750CE3/TR13?
The 1N4750CE3/TR13 has a maximum surge current (ISM) rating of 750 mA, measured using a ½ sine-wave pulse of 1/120 second duration at 25 °C ambient, as specified in the Electrical Characteristics table. This rating applies to transient overvoltage events such as ESD or inductive switching spikes, and is validated per JEDEC test methodology described in Note 3 of the datasheet.
What package type does the 1N4750CE3/TR13 use?
The 1N4750CE3/TR13 uses the DO-41 (JEDEC DO-204AL) axial-leaded plastic package, as confirmed in the "MECHANICAL AND PACKAGING" section and package dimension diagrams on page 3 of the Microsemi datasheet. It features flexible mounting terminals, cathode identification via a painted band, and weighs 0.7 grams.
How does the temperature coefficient affect the 1N4750CE3/TR13 in circuit design?
The 1N4750CE3/TR13 exhibits a positive temperature coefficient of approximately +5.5 mV/°C, as shown in Figure 3 ("Temp. Coeff. vs. Zener Voltage") of the datasheet. This means its Zener voltage increases linearly with temperature-critical for applications requiring drift compensation, such as precision references paired with NTC thermistors or matched transistor arrays.
1N4750CE3/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):
- 27 V
- Tolerance:
- ±2%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 35 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 20.6 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)
1N4750CE3/TR13 FAQ
1.How can I place an order for 1N4750CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4750CE3/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 1N4750CE3/TR13 reliable?
The price and inventory of 1N4750CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4750CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N4750CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4750CE3/TR13 transactions.
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4.How is shipping managed for 1N4750CE3/TR13?
1N4750CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4750CE3/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 1N4750CE3/TR13?
For technical support, including 1N4750CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4750CE3/TR13 requirements.
6.How does Aetrix verify that 1N4750CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N4750CE3/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 1N4750CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N4750CE3/TR13?
All 1N4750CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4750CE3/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 1N4750CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N4750CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4750CE3/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
-
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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