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Microchip Technology 1N4755CE3/TR13
- Part No.:
- 1N4755CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4755CE3/TR13.pdf
- Description:
- DIODE ZENER 43V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,635
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Product details
Overview
1N4755CE3/TR13 from Microsemi is a 1.0 W, 43 V ±2% tolerance silicon Zener diode in DO-41 plastic package, rated for 6.0 mA test current (IZT), 22 Ω dynamic impedance (ZZT), and 110 mA maximum regulator current (IZM) at 50°C. It provides precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4755CE3/TR13 datasheet, 1N4755CE3/TR13 pinout, 1N4755CE3/TR13 application, or 1N4755CE3/TR13 equivalent, key selection criteria include its ±2% Zener voltage tolerance (C suffix), RoHS-compliant matte-tin plating (e3 suffix), tape-and-reel packaging (TR13), and DO-41 thermal performance (45°C/W junction-to-lead).
Technical Context
This device operates in reverse-biased Zener breakdown mode to maintain stable 43 V output across a wide current range (0.25–110 mA). Its 22 Ω dynamic impedance at 6.0 mA ensures low regulation error under varying load conditions.
The 1N4755CE3/TR13 features a temperature coefficient of +12 mV/°C (per Figure 3), enabling predictable drift compensation in mid-voltage references. Its DO-41 package delivers 45°C/W junction-to-lead thermal resistance at 10 mm lead length, supporting reliable 1.0 W dissipation up to 105°C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V ±2% at 6.0 mA - enables precise 43 V reference with tight tolerance for feedback networks |
| Power Dissipation | 1.0 W at TL < 105°C - supports continuous regulation in compact PCB layouts with adequate lead heatsinking |
| Dynamic Impedance (ZZT) | 22 Ω @ IZT = 6.0 mA - minimizes output voltage variation under load transients |
| Max Regulator Current (IZM) | 110 mA at TA = 50°C - defines safe upper current limit before thermal runaway |
| Reverse Leakage (IR) | 5 μA @ VR = 32.7 V - ensures low quiescent current in standby-mode protection circuits |
| Forward Voltage (VF) | 1.2 V max @ 200 mA - allows use as clamp diode in bidirectional surge protection |
| Temp Coefficient | +12 mV/°C - predictable positive drift aids temperature-compensated reference design |
Pinout & Package
DO-41 (DO-204AL) axial-leaded plastic package with cathode band marking; moisture sensitivity level 1 (no dry pack required); RoHS-compliant matte-tin terminations.
| 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; must be held at +43 V relative to anode to maintain regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Reduces calibration burden in precision 43 V references versus standard ±5% parts |
| RoHS-compliant matte-tin plating (e3 suffix) | Enables lead-free reflow assembly without solderability degradation |
| Tape-and-reel packaging (TR13 suffix) | Supports automated SMT placement despite axial-leaded form factor |
| Level 1 moisture sensitivity | Eliminates baking requirement prior to assembly, reducing process cost and risk |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Permits handling in standard workstations without special ESD controls |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing output voltage in linear regulators or switching converter feedback loops. IC Role / Device Role / Timing Role: Zener diode providing precise 43 V reference voltage to error amplifier input. Use Value: ±2% tolerance ensures output accuracy within 0.86 V, reducing need for post-production trimming. | Use Scenario: Protecting downstream ICs from transient overvoltage on 48 V DC rails. IC Role / Device Role / Timing Role: Shunt clamping element diverting excess current when rail exceeds 43 V. Use Value: 110 mA IZM rating supports robust energy absorption during 100 ms surges without failure. |
| Temperature-Compensated Reference | Industrial Sensor Excitation |
Use Scenario: Building a compensated reference by pairing with negative-tempco components. IC Role / Device Role / Timing Role: Positive-tempco (+12 mV/°C) voltage source in reference string design. Use Value: Predictable drift enables cancellation with thermistors or NTC diodes to achieve <50 ppm/°C stability. | Use Scenario: Providing stable excitation voltage to resistive bridge sensors in harsh environments. IC Role / Device Role / Timing Role: Fixed 43 V bias source for strain gauge or RTD interfaces. Use Value: 1.0 W power rating sustains continuous operation at full load in -65°C to +150°C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4755A | Same 43 V nominal, but ±5% tolerance (A suffix) and no RoHS or tape-and-reel designation | Lacks e3/TR13 compliance; suitable only for legacy non-RoHS designs or manual assembly | Select 1N4755CE3/TR13 when RoHS compliance, automated placement, and tighter tolerance are required |
| MMSZ43ET1G | Surface-mount SOD-123 package, same 43 V ±5%, 500 mW rating, 30 Ω ZZT | Lower power and higher impedance limit use to low-current references; no axial mounting option | Choose MMSZ43ET1G only for space-constrained PCBs where DO-41 footprint is unacceptable |
Compared with 1N4755A and MMSZ43ET1G, the 1N4755CE3/TR13 uniquely combines ±2% tolerance, 1.0 W power, RoHS compliance, and tape-and-reel packaging-making it optimal for high-reliability industrial power supplies requiring automated assembly and tight regulation.
Availability
1N4755CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom DC-DC converters, and sensor interface modules requiring stable component supply with RoHS compliance and automated placement support.
Supply support for 1N4755CE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N47xxA series was designed for general-purpose voltage regulation in ruggedized power systems, emphasizing thermal robustness, long-term stability, and military-grade screening options.
FAQ
What is the Zener voltage tolerance of the 1N4755CE3/TR13?
The 1N4755CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in the part number. This means its regulated voltage falls between 42.14 V and 43.86 V at 6.0 mA test current and 25°C lead temperature. This tighter tolerance reduces calibration effort compared to standard ±5% Zener diodes like the 1N4755A, making the 1N4755CE3/TR13 suitable for precision reference applications where output accuracy is critical.
Does the 1N4755CE3/TR13 meet RoHS requirements?
Yes, the 1N4755CE3/TR13 meets RoHS requirements, as confirmed by the "e3" suffix in its part number, denoting RoHS-compliant matte-tin plating per Microsemi documentation. Its terminations are annealed matte-tin per MIL-STD-750 Method 2026 and compatible with lead-free reflow processes up to 260°C for 10 seconds. The 1N4755CE3/TR13 is fully compliant for use in environmentally regulated industrial and telecom equipment.
What package type does the 1N4755CE3/TR13 use?
The 1N4755CE3/TR13 uses the DO-41 (JEDEC DO-204AL) axial-leaded plastic package. It features a void-free thermosetting epoxy body rated UL94V-0, tin-plated leads, and cathode polarity marked by a band. The package supports 45°C/W junction-to-lead thermal resistance at 10 mm lead length and is moisture sensitivity level 1-requiring no dry pack prior to assembly. This makes the 1N4755CE3/TR13 ideal for through-hole and wave-soldered industrial power designs.
What is the maximum regulator current (IZM) for the 1N4755CE3/TR13?
The maximum regulator current (IZM) for the 1N4755CE3/TR13 is 110 mA at an ambient temperature of 50°C, as specified in Microsemi's electrical characteristics table. This value represents the peak continuous reverse current the diode can safely sustain while maintaining regulation at 43 V without exceeding its 1.0 W power limit. Exceeding IZM risks thermal runaway, so proper heatsinking or current limiting is required in high-power clamp applications using the 1N4755CE3/TR13.
How does the temperature coefficient affect the 1N4755CE3/TR13 in practical designs?
The 1N4755CE3/TR13 exhibits a positive temperature coefficient of +12 mV/°C, meaning its Zener voltage increases by approximately 12 mV for every 1°C rise in junction temperature. This behavior is documented in Microsemi's Figure 3 and enables predictable drift compensation-for example, when paired with negative-tempco components like thermistors in precision reference strings. Designers must account for this coefficient in wide-temperature-range applications, as unmitigated drift could introduce up to ±1.2 V error across a 100°C operating span in the 1N4755CE3/TR13.
1N4755CE3/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):
- 43 V
- Tolerance:
- ±2%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 32.7 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)
1N4755CE3/TR13 FAQ
1.How can I place an order for 1N4755CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4755CE3/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 1N4755CE3/TR13 reliable?
The price and inventory of 1N4755CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4755CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N4755CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4755CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4755CE3/TR13?
1N4755CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4755CE3/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 1N4755CE3/TR13?
For technical support, including 1N4755CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4755CE3/TR13 requirements.
6.How does Aetrix verify that 1N4755CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N4755CE3/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 1N4755CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N4755CE3/TR13?
All 1N4755CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4755CE3/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 1N4755CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N4755CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4755CE3/TR13 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
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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