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Microchip Technology 1N4754CP/TR8
- Part No.:
- 1N4754CP/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4754CP/TR8.pdf
- Description:
- DIODE ZENER 39V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,361
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Product details
Overview
1N4754CP/TR8 from Microsemi is a 39 V, 1 W plastic-encapsulated Zener diode with ±5% voltage tolerance, 6.5 mA test current (IZT), 60 Ω dynamic impedance (ZZT), and DO-41 axial-leaded package. It regulates voltage in power supply reference, overvoltage protection, and voltage-clamping circuits across industrial and embedded systems.
For engineers reviewing the 1N4754CP/TR8 datasheet, 1N4754CP/TR8 pinout, 1N4754CP/TR8 application, or 1N4754CP/TR8 equivalent, key selection factors include Zener voltage accuracy, thermal resistance (45 °C/W junction-to-lead), surge current rating (1000 mA), and RoHS-compliant matte-tin plating per MIL-STD-750 Method 2026.
Technical Context
The 1N4754CP/TR8 operates as a reverse-biased voltage reference diode with sharp breakdown knee at 39 V nominal, specified at 6.5 mA IZT and 25 °C lead temperature. Its 60 Ω dynamic impedance ensures stable regulation under varying load currents, and its 0.25 A maximum regulator current (IZM) supports moderate-power clamping.
Designed for axial-lead mounting on FR4 PCBs, it delivers 1.0 W steady-state dissipation at TL < 105 °C (3/8″ from body) or TA < 45 °C with defined copper pad layout. Its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1-no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Vz) | 39 V ±5% - precise DC reference for feedback loops and threshold detection |
| Power Dissipation | 1.0 W at TL < 105 °C - defines maximum continuous thermal load without derating |
| Test Current (IZT) | 6.5 mA - operating point where Vz and ZZT are guaranteed per JEDEC spec |
| Dynamic Impedance (ZZT) | 60 Ω @ IZT - low AC impedance enables tight regulation under dynamic load changes |
| Max Regulator Current (IZM) | 0.25 A at TA = 50 °C - sets upper limit for sustained reverse conduction |
| Surge Current (ISM) | 1000 mA - handles transient overvoltage events per ½-sine 1/120 s pulse |
| Forward Voltage (VF) | 1.2 V max @ 200 mA - ensures predictable forward conduction if accidentally biased |
Pinout & Package
DO-41 (DO-204AL) plastic axial-leaded package with cathode indicated by band; banded end must be held positive relative to anode for Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference terminal | Connected to lower-potential node; forms cathode-anode voltage drop during regulation |
| Cathode | Zener regulation output node | Banded end; referenced to system ground or return path; supplies regulated voltage to load |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N4754A series | Industry-standard footprint and electrical behavior ensures design continuity and sourcing flexibility |
| Plastic P-suffix construction | Lower thermal resistance (45 °C/W) vs. glass-body G-suffix variants improves power handling reliability |
| RoHS-compliant "e3" suffix | Matte-tin plating meets environmental compliance without sacrificing solderability or MIL-STD-750 validation |
| Level 1 moisture sensitivity | No dry pack required before reflow - reduces manufacturing prep time and cost |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator ICs or discrete transistor-based regulators. IC Role / Device Role / Timing Role: Zener reference element providing fixed 39 V reference to error amplifier input. Use Value: Enables ±5% output voltage accuracy and low-drift regulation due to sharp 60 Ω knee impedance. | Use Scenario: Clamping transient surges on 24–48 V DC rails in industrial control modules. IC Role / Device Role / Timing Role: Shunt protection device diverting excess energy to ground when rail exceeds 39 V. Use Value: Withstands 1000 mA surge pulses and maintains regulation integrity up to 150 °C ambient. |
| Voltage-Level Translation | Signal Conditioning Clamp |
Use Scenario: Biasing op-amp inputs or setting logic thresholds in mixed-signal sensor interfaces. IC Role / Device Role / Timing Role: Precision clamp limiting analog signal swing to 39 V while preserving linearity below knee. Use Value: 6.5 mA IZT and 60 Ω ZZT ensure minimal loading and distortion in high-impedance nodes. | Use Scenario: Protecting ADC inputs or microcontroller GPIO pins from ESD-induced overvoltage. IC Role / Device Role / Timing Role: Fast-response shunt limiter absorbing short-duration transients before damage occurs. Use Value: Nonsensitive to ESD per MIL-STD-750 Method 1020 and rated for 260 °C soldering-supports robust assembly. |
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 "P" suffix → glass-body DO-35 package; higher thermal resistance (105 °C/W junction-to-ambient) | Less suitable for high-power-density PCB layouts requiring efficient heat transfer | Select 1N4754CP/TR8 when DO-41 mechanical robustness and lower thermal resistance are required |
| MMSZ4704T1G | Surface-mount SOD-123; 39 V ±5%, 10 mA IZT, 90 Ω ZZT; 500 mW rating | Lower power handling and different thermal profile-requires layout revision and derating | Choose MMSZ4704T1G only for space-constrained designs where 1 W dissipation is not needed |
Compared with 1N4754A and MMSZ4704T1G, the 1N4754CP/TR8 offers superior thermal performance in axial-leaded form, verified 1000 mA surge capability, and tape-and-reel packaging for automated assembly-making it optimal for industrial power and protection circuits demanding reliability and manufacturability.
Availability
1N4754CP/TR8 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and voltage-level translation applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N4754CP/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 manufacturer specializing in high-reliability analog, RF, and timing components for aerospace, defense, and industrial markets.
The 1N47xxAP series was designed specifically for general-purpose, 1 W Zener regulation in commercial and industrial environments-emphasizing JEDEC standardization, moisture resilience, and broad voltage coverage (3.3–100 V).
FAQ
What is the Zener voltage tolerance of the 1N4754CP/TR8?
The 1N4754CP/TR8 has a nominal Zener voltage of 39 V with a ±5% tolerance, as indicated by the "A" suffix in its JEDEC designation. This tolerance is guaranteed at 25 °C lead temperature with 6.5 mA test current, and applies across the full operating temperature range of –65 °C to +150 °C per Microsemi's published specifications.
Does the 1N4754CP/TR8 require dry packing before reflow soldering?
No, the 1N4754CP/TR8 does not require dry packing prior to reflow. It is classified as Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored indefinitely at ambient conditions without baking. This simplifies manufacturing flow and eliminates moisture-related popcorning risks during assembly.
What is the maximum surge current rating for the 1N4754CP/TR8?
The 1N4754CP/TR8 is rated for a maximum surge current (ISM) of 1000 mA, measured using a ½-sine wave or equivalent 1/120 second pulse at 25 °C ambient. This rating enables reliable transient suppression in DC power rails subject to inductive switching or lightning-induced spikes.
How does the "P" suffix in 1N4754CP/TR8 affect its package and thermal performance?
The "P" suffix denotes plastic encapsulation in DO-41 (DO-204AL) form, delivering 45 °C/W junction-to-lead thermal resistance-significantly lower than the 105 °C/W of the glass-bodied "G" variant (e.g., 1N4754AG). This allows the 1N4754CP/TR8 to sustain full 1.0 W dissipation at higher ambient temperatures or with shorter lead lengths.
Is the 1N4754CP/TR8 RoHS compliant?
Yes, the 1N4754CP/TR8 is RoHS compliant, as confirmed by the "e3" suffix in its full ordering code. It features annealed matte-tin plating on terminals, qualified per MIL-STD-750 Method 2026, and meets lead-free soldering requirements including 260 °C for 10 seconds without degradation.
1N4754CP/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):
- 39 V
- Tolerance:
- ±2%
- 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)
1N4754CP/TR8 FAQ
1.How can I place an order for 1N4754CP/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4754CP/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 1N4754CP/TR8 reliable?
The price and inventory of 1N4754CP/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4754CP/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4754CP/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4754CP/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4754CP/TR8?
1N4754CP/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4754CP/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 1N4754CP/TR8?
For technical support, including 1N4754CP/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4754CP/TR8 requirements.
6.How does Aetrix verify that 1N4754CP/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4754CP/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 1N4754CP/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4754CP/TR8?
All 1N4754CP/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4754CP/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 1N4754CP/TR8 part is unused and in its original packaging.
Return procedure for 1N4754CP/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4754CP/TR8 Tags
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MM5Z5V1ST1G
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