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Microchip Technology 1N4751APE3/TR8
- Part No.:
- 1N4751APE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4751APE3/TR8.pdf
- Description:
- DIODE ZENER 30V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,093
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Product details
Overview
1N4751APE3/TR8 from Microsemi is a 30 V, 1 W silicon Zener diode in DO-41 plastic package with ±5% voltage tolerance, 8.5 mA test current, and 40 Ω dynamic impedance at IZT, used for precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4751APE3/TR8 datasheet, 1N4751APE3/TR8 pinout, 1N4751APE3/TR8 application, or 1N4751APE3/TR8 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 per EIA-296.
Technical Context
This device operates in reverse breakdown to maintain stable 30 V output across 1.0–150 mA regulation current range, with temperature coefficient of +22 mV/°C typical. Its 45 °C/W junction-to-lead thermal resistance enables reliable operation up to +150 °C ambient when mounted with 10 mm lead length.
The 1N4751APE3/TR8 exhibits sharp knee characteristics verified by dual-point Zener impedance measurement (IZK = 0.25 mA, ZZK = 30 Ω), and complies with MIL-STD-750 Method 1020 for ESD insensitivity. 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) | 30 V ±5% at 8.5 mA - defines nominal regulation point with tight production control |
| Power Dissipation | 1.0 W at TL < 105 °C - sets maximum continuous DC power under lead-temperature-limited conditions |
| Dynamic Impedance (ZZT) | 40 Ω at IZT = 8.5 mA - determines output voltage variation under load transients |
| Reverse Surge Current (ISM) | 1000 mA (½-sine, 1/120 s) - supports transient overvoltage clamping without failure |
| Thermal Resistance (RθJL) | 45 °C/W junction-to-lead - enables thermal design with standard axial-lead PCB mounting |
| Operating Temperature | −65 °C to +150 °C - suitable for industrial and automotive under-hood environments |
| Forward Voltage | 1.2 V max @ 200 mA - ensures low-loss forward conduction during fault conditions |
Pinout & Package
DO-41 (DO-204AL) plastic axial-leaded package with cathode band marking; void-free UL94V-0 epoxy body, tin-lead or RoHS-compliant matte-tin plating, 0.7 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower-potential node in Zener regulation configuration |
| Cathode | Banded end | Connected to higher-potential node; Zener breakdown occurs with cathode positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with standardized 1N47xxA series mechanical and electrical definitions |
| RoHS-compliant "e3" suffix | Matte-tin terminal plating meeting EU Directive 2011/65/EU requirements |
| Tape-and-reel packaging | EIA-296 compliant carrier tape (TR8 designation) for automated SMT placement compatibility |
| Moisture Sensitivity Level 1 | No dry-pack or baking required prior to assembly - reduces manufacturing overhead |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - eliminates need for special handling in production |
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: Voltage reference element providing fixed 30 V reference point for error amplifier comparison. Use Value: Maintains ±5% output accuracy over 1.0–150 mA load range and −65 °C to +150 °C temperature span. | Use Scenario: Clamping transient spikes on DC bus lines in motor drives or industrial PLC I/O modules. IC Role / Device Role / Timing Role: Shunt protection device diverting excess energy to ground when voltage exceeds 30 V. Use Value: Withstands 1000 mA surge current (1/120 s) without degradation, enabling robust system-level surge immunity. |
| Signal Level Translation | Calibration Reference |
Use Scenario: Biasing op-amp inputs or setting logic thresholds in mixed-signal sensor interfaces. IC Role / Device Role / Timing Role: Precision DC bias source establishing known voltage offset for analog signal conditioning. Use Value: Low 40 Ω dynamic impedance ensures minimal voltage shift under varying sink currents up to 150 mA. | Use Scenario: Providing traceable voltage standard in portable test equipment and handheld multimeters. IC Role / Device Role / Timing Role: Primary calibration reference with JEDEC-registered parametric consistency across production lots. Use Value: ±5% tolerance and <22 mV/°C tempco enable field-calibrated accuracy without active compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4751A-T | Same 30 V, 1 W, ±5% spec; lead-free matte-tin plating but no "e3" suffix; TR13 tape format | Identical regulation performance; differs only in packaging compliance labeling and reel size | Select when RoHS documentation requires explicit "e3" suffix or EIA-296 TR8 tape geometry is mandatory |
| MMBZ5261BS-7-F | 30 V, 225 mW SOT-23 surface-mount Zener; 30 Ω ZZT at 9.5 mA; ±5% tolerance | Lower power rating limits use to low-current biasing; not suitable for >225 mW dissipation or surge clamping | Select only for space-constrained PCBs where 1 W dissipation is unnecessary and axial leads are prohibited |
Compared with 1N4751A-T and MMBZ5261BS-7-F, the 1N4751APE3/TR8 uniquely combines full 1 W power handling, JEDEC-standard DO-41 form factor, RoHS-compliant "e3" marking, and EIA-296 TR8 tape - making it optimal for high-reliability through-hole production requiring audit-ready compliance and thermal robustness.
Availability
1N4751APE3/TR8 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and calibration reference applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N4751APE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N47xxAP series was designed specifically for general-purpose voltage regulation in cost-sensitive yet thermally demanding applications, balancing JEDEC-standard compatibility with enhanced plastic-package thermal performance over legacy glass-body variants.
FAQ
What is the Zener voltage tolerance for 1N4751APE3/TR8?
The 1N4751APE3/TR8 has a nominal Zener voltage of 30 V with a tolerance of ±5%, as indicated by the "A" suffix in the part number per JEDEC standard. This tolerance is guaranteed at 8.5 mA test current and 25 °C lead temperature. The "e3" suffix confirms RoHS compliance but does not affect voltage specification.
Does 1N4751APE3/TR8 require dry packing before PCB assembly?
No, the 1N4751APE3/TR8 is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it is not moisture-sensitive and requires no dry pack or baking prior to reflow or wave soldering. This simplifies manufacturing logistics and reduces process risk compared to higher-MSL components.
What is the maximum surge current rating for 1N4751APE3/TR8?
The 1N4751APE3/TR8 is rated for a maximum reverse surge current (ISM) of 1000 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25 °C ambient. This rating supports transient overvoltage suppression in DC power rails without permanent parameter shift or failure.
How does the thermal resistance of 1N4751APE3/TR8 compare between junction-to-lead and junction-to-ambient?
The 1N4751APE3/TR8 has a junction-to-lead thermal resistance (RθJL) of 45 °C/W at 10 mm lead length, while its junction-to-ambient resistance (RθJA) is 105 °C/W on FR4 board with specified copper area. This 2.3× difference highlights the importance of proper lead heatsinking - direct lead termination to large copper pours significantly improves power handling capability.
Is 1N4751APE3/TR8 compatible with lead-free reflow processes?
Yes, the 1N4751APE3/TR8 features RoHS-compliant annealed matte-tin plating qualified for soldering at 260 °C for 10 seconds maximum, fully compatible with standard lead-free reflow profiles. Its UL94V-0 epoxy body remains stable under these conditions, and no special prebake is needed due to its Level 1 moisture rating.
1N4751APE3/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):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 22.8 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)
1N4751APE3/TR8 FAQ
1.How can I place an order for 1N4751APE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4751APE3/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 1N4751APE3/TR8 reliable?
The price and inventory of 1N4751APE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4751APE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4751APE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4751APE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4751APE3/TR8?
1N4751APE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4751APE3/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 1N4751APE3/TR8?
For technical support, including 1N4751APE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4751APE3/TR8 requirements.
6.How does Aetrix verify that 1N4751APE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4751APE3/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 1N4751APE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4751APE3/TR8?
All 1N4751APE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4751APE3/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 1N4751APE3/TR8 part is unused and in its original packaging.
Return procedure for 1N4751APE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4751APE3/TR8 Tags
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MM5Z5V1ST1G
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