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Microchip Technology 1N4753CPE3/TR8
- Part No.:
- 1N4753CPE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4753CPE3/TR8.pdf
- Description:
- DIODE ZENER 36V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
1N4753CPE3/TR8 from Microsemi is a 1.0 W, 36 V ±2% tolerance silicon Zener diode in DO-41 plastic package, rated for operation from –65 °C to +150 °C, with 7.0 mA test current (IZT), 50 Ω dynamic impedance (ZZT), and 125 mA maximum regulator current (IZM) at TA = 50 °C - used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N4753CPE3/TR8 datasheet, 1N4753CPE3/TR8 pinout, 1N4753CPE3/TR8 application, or 1N4753CPE3/TR8 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (105 °C/W on FR4), surge current rating (1000 mA), RoHS-compliant matte-tin plating, and tape-and-reel packaging (TR8).
Technical Context
This Zener operates in reverse breakdown to maintain stable voltage across its terminals under varying load and temperature conditions. Its 36 V nominal Zener voltage exhibits a positive temperature coefficient above ~5 V, with typical TC of +3.5 mV/°C per Figure 3 in the datasheet.
The device uses axial-leaded DO-41 (DO-204AL) construction with void-free thermosetting epoxy body (UL94V-0), cathode band polarity marking, and tin-lead or RoHS-compliant matte-tin terminations solderable per MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±2% at IZT = 7.0 mA - ensures tight regulation stability for feedback references requiring <±0.72 V deviation. |
| Power Dissipation | 1.0 W at TL < 105 °C (3/8″ lead length) - defines maximum continuous DC power before thermal derating applies. |
| Dynamic Impedance | 50 Ω at IZT = 7.0 mA - determines output voltage variation under small-signal AC load changes. |
| Max Regulator Current | 125 mA at TA = 50 °C - sets upper limit for sustained Zener conduction without exceeding junction temperature limits. |
| Reverse Leakage | 5 μA max at VR = 27.4 V - confirms low standby current in high-impedance bias networks. |
| Surge Current | 1000 mA (½-sine, 1/120 s) - supports transient overvoltage clamping during line surges or switching events. |
| Thermal Resistance | 105 °C/W junction-to-ambient on FR4 (1 oz Cu, 4 mm² pad) - informs PCB copper area requirements for thermal management. |
Pinout & Package
Package: DO-41 (JEDEC DO-204AL), axial-leaded plastic encapsulated case with cathode indicated by colored band. Body diameter 2.0–2.7 mm, overall length 4.5–5.5 mm, lead diameter 0.4–0.6 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased operation requires cathode at higher potential. |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to regulated node (e.g., feedback divider tap); must be held >36 V relative to anode for breakdown conduction. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables tighter feedback loop accuracy than standard ±5% (A) or ±10% (no suffix) parts, reducing output voltage drift in precision supplies. |
| RoHS-compliant matte-tin plating (e3 suffix) | Supports lead-free reflow assembly (260 °C/10 s) while maintaining solderability and corrosion resistance per MIL-STD-750. |
| Tape-and-reel packaging (TR8 suffix) | Enables automated pick-and-place placement with EIA-296 standard carrier tape, 8 mm width, 4 mm pocket pitch. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints - safe for indefinite ambient storage prior to assembly. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands human-body-model ESD events without parameter shift or failure, simplifying handling in non-ESD-controlled environments. |
Applications
| Switching Power Supply Feedback | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Integrated into optocoupler-based feedback network of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Zener reference element setting precise error amplifier threshold; replaces adjustable shunt regulator IC where cost and simplicity are prioritized. Use Value: Delivers ±2% output regulation accuracy over temperature and line variations, matching performance of TL431-based designs at lower BOM cost. | Use Scenario: Placed across sensitive input rails (e.g., microcontroller VDD) to suppress ESD or inductive kickback transients. IC Role / Device Role / Timing Role: Passive voltage clamp limiting rail excursion to ≤36.7 V (VZ + ΔVZ at IZM), protecting downstream logic from damage. Use Value: Absorbs 1000 mA surge pulses without degradation, providing robust first-line protection without active control circuitry. |
| Industrial Sensor Excitation | Reference Voltage Generator |
Use Scenario: Supplies stable excitation current to resistive bridge sensors (e.g., strain gauges) in harsh-environment instrumentation. IC Role / Device Role / Timing Role: Constant-voltage source establishing known bias point; paired with series resistor to generate fixed current through sensor element. Use Value: Maintains <±0.72 V regulation over –40 °C to +85 °C ambient, enabling <0.1% full-scale measurement repeatability. | Use Scenario: Generates local 36 V reference for analog-to-digital converter (ADC) input scaling or comparator hysteresis thresholds. IC Role / Device Role / Timing Role: Precision voltage node referenced to system ground; buffered via op-amp if loading exceeds 1 mA. Use Value: Provides low-noise, low-drift reference with 50 Ω dynamic impedance - suitable for 12-bit ADC systems requiring <1 LSB error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4753A | Same 36 V nominal, but ±5% tolerance (A suffix) vs. ±2% (C suffix); otherwise identical electrical specs and DO-41 package. | Acceptable where ±5% output tolerance is sufficient; not suitable for high-accuracy feedback loops demanding <±1% total output error. | Select 1N4753CPE3/TR8 when reference stability dominates cost sensitivity; choose 1N4753A for cost-sensitive, less-critical regulation. |
| MMSZ4702T1G | Surface-mount SOD-123 package (2.7 × 1.6 mm), 36 V ±5%, 500 mW rating, 100 Ω ZZT - lower power, smaller footprint, different thermal profile. | Used in space-constrained, high-density PCBs where axial leads are incompatible with layout; unsuitable for >500 mW continuous dissipation. | Choose MMSZ4702T1G only for SMT-only designs with adequate derating margin; 1N4753CPE3/TR8 remains preferred for 1 W axial-leaded reliability. |
Compared with 1N4753A and MMSZ4702T1G, the 1N4753CPE3/TR8 uniquely combines ±2% tolerance, 1 W power handling, DO-41 mechanical robustness, and RoHS-compliant tape-and-reel delivery - making it optimal for industrial power supplies requiring long-term calibration stability and through-hole assembly compatibility.
Availability
1N4753CPE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and precision sensor excitation systems requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N4753CPE3/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, mixed-signal, and RF components for aerospace, defense, and industrial markets.
The 1N47xxAP Zener series was engineered for ruggedized voltage regulation in mission-critical power systems, emphasizing wide temperature range, moisture resilience, and MIL-spec screening compatibility.
FAQ
What is the Zener voltage tolerance of the 1N4753CPE3/TR8?
The 1N4753CPE3/TR8 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its nominal 36 V Zener voltage falls within 35.28 V to 36.72 V at IZT = 7.0 mA and TL = 25 °C. This tighter tolerance enables higher accuracy in voltage reference and feedback applications compared to ±5% (A suffix) or ±10% (no suffix) variants of the same 1N4753 family.
Is the 1N4753CPE3/TR8 RoHS compliant?
Yes, the 1N4753CPE3/TR8 is RoHS compliant, as confirmed by the "e3" suffix in its designation. It features annealed matte-tin plating on its axial leads, qualified for lead-free reflow soldering at 260 °C for up to 10 seconds per MIL-STD-750 Method 2026. The plastic DO-41 package uses UL94V-0 rated void-free epoxy, fully meeting EU RoHS Directive 2011/65/EU substance restrictions.
What does the "TR8" suffix indicate in 1N4753CPE3/TR8?
The "TR8" suffix indicates tape-and-reel packaging per EIA-296 standard: 8 mm carrier tape width, 4 mm pocket pitch, and component orientation aligned for automated pick-and-place placement. This format supports high-volume SMT assembly lines and ensures consistent feeding, static protection, and traceability - distinct from bulk or ammo-pack options. The "TR8" does not affect electrical or thermal specifications of the 1N4753CPE3/TR8 itself.
Can the 1N4753CPE3/TR8 replace a 1N4753A in an existing design?
The 1N4753CPE3/TR8 can replace a 1N4753A mechanically and electrically in most cases, as both share identical DO-41 package, 36 V nominal Zener voltage, 1 W power rating, and thermal characteristics. However, the 1N4753CPE3/TR8's ±2% tolerance improves regulation accuracy - beneficial if the original design margin accommodates tighter voltage control. Verify that the improved tolerance doesn't inadvertently shift feedback loop behavior or trip overvoltage thresholds.
What is the maximum steady-state power dissipation for the 1N4753CPE3/TR8 on a standard FR4 PCB?
The 1N4753CPE3/TR8 delivers 1.0 W steady-state power dissipation only when mounted on FR4 with 1 oz copper, 4 mm² copper pads, and 1 mm track width/25 mm length - achieving 105 °C/W junction-to-ambient thermal resistance. At ambient temperatures above 45 °C, linear derating applies per Figure 1 in the datasheet; for example, at TA = 70 °C, max power drops to ~0.75 W. Exceeding this limit risks thermal runaway or parametric shift.
1N4753CPE3/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):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 27.4 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)
1N4753CPE3/TR8 FAQ
1.How can I place an order for 1N4753CPE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4753CPE3/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 1N4753CPE3/TR8 reliable?
The price and inventory of 1N4753CPE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4753CPE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4753CPE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4753CPE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4753CPE3/TR8?
1N4753CPE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4753CPE3/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 1N4753CPE3/TR8?
For technical support, including 1N4753CPE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4753CPE3/TR8 requirements.
6.How does Aetrix verify that 1N4753CPE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4753CPE3/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 1N4753CPE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4753CPE3/TR8?
All 1N4753CPE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4753CPE3/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 1N4753CPE3/TR8 part is unused and in its original packaging.
Return procedure for 1N4753CPE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4753CPE3/TR8 Tags
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