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Microchip Technology 1N4753P/TR8
- Part No.:
- 1N4753P/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4753P/TR8.pdf
- Description:
- DIODE ZENER 36V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,911
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Product details
Overview
1N4753P/TR8 from Microsemi is a 1.0 W axial-lead silicon Zener diode with nominal zener voltage of 36 V, ±5% tolerance (A suffix), and DO-41 plastic package. It regulates voltage across wide current and temperature ranges (-65°C to +150°C), supports 7.0 mA test current (IZT), and delivers 125 mA maximum regulator current (IZM) at TA = 50°C - used in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4753P/TR8 datasheet, 1N4753P/TR8 pinout, 1N4753P/TR8 application, or 1N4753P/TR8 equivalent, key selection criteria include zener voltage stability under thermal drift, dynamic impedance (50 Ω at IZT), surge current rating (1000 mA), junction-to-lead thermal resistance (45 °C/W), and RoHS-compliant tape-and-reel packaging (TR8).
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable voltage regulation across varying load and line conditions. Its 36 V nominal zener voltage exhibits a positive temperature coefficient above ~5 V, and its 50 Ω dynamic impedance at 7.0 mA ensures predictable regulation slope near the knee.
The device uses a void-free thermosetting epoxy body (UL94V-0), tin-lead or matte-tin plating, and cathode band polarity marking. It is moisture-sensitive Level 1 per J-STD-020B - no dry pack required - and rated for 1.0 W dissipation at TL < 105°C (3/8″ lead length) or TA < 45°C on FR4 board.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% - defines regulated output voltage under specified test current; critical for reference accuracy in feedback loops. |
| Test Current (IZT) | 7.0 mA - operating point where VZ and dynamic impedance are guaranteed; sets minimum bias for stable regulation. |
| Dynamic Impedance (ZZT) | 50 Ω @ IZT - small-signal AC resistance affecting regulation precision under varying load current. |
| Max Regulator Current (IZM) | 125 mA at TA = 50°C - maximum continuous reverse current before thermal runaway; determines power handling in clamp applications. |
| Power Dissipation | 1.0 W at TL < 105°C - thermal limit defined at lead temperature; derates linearly above 105°C per Figure 1. |
| Surge Current (ISM) | 1000 mA - peak non-repetitive reverse current (½-sine, 1/120 s) for transient overvoltage clamping. |
| Forward Voltage | 1.2 V max @ 200 mA - forward conduction drop; relevant for reverse-polarity protection or series-switch configurations. |
Pinout & Package
DO-41 (JEDEC DO-204AL) plastic axial-lead package with cathode indicated by colored band. Leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026. Weight: 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower potential node; forward conduction path when biased positively relative to cathode. |
| Cathode | Banded end | Connected to higher potential node during Zener operation; defines regulation polarity and breakdown direction. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Registered Zener | Complies with JEDEC 1N47xxA standard - ensures interchangeability and qualification consistency across suppliers. |
| Plastic Encapsulation (P suffix) | Lower thermal resistance (45 °C/W junction-to-lead) vs. glass-body variants - improves power handling in compact layouts. |
| Tape-and-Reel Packaging (TR8) | EIA-296 compliant - enables automated SMT placement despite axial-lead form factor via carrier tape feeding. |
| Moisture Sensitivity Level 1 | No dry pack required per J-STD-020B - simplifies handling and eliminates bake-out prior to assembly. |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - withstands electrostatic discharge without parameter shift or failure. |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator or switching converter error amplifiers. IC Role / Device Role / Timing Role: Zener diode provides precise 36 V reference to comparator or op-amp input. Use Value: Maintains ±5% regulation accuracy across -65°C to +150°C ambient, enabling reliable setpoint control without trimming. | Use Scenario: Protecting downstream ICs from transient voltage spikes on DC rails. IC Role / Device Role / Timing Role: Shunts excess energy to ground when rail exceeds 36 V, limiting peak voltage. Use Value: Withstands 1000 mA surge current (1/120 s), absorbing transient energy without degradation. |
| Industrial Sensor Excitation | Programmable Threshold Detector |
Use Scenario: Providing stable excitation voltage to resistive sensors (e.g., RTDs, strain gauges) in harsh environments. IC Role / Device Role / Timing Role: Acts as low-drift voltage source for bridge biasing in analog front-ends. Use Value: Low dynamic impedance (50 Ω) minimizes output impedance variation with load, improving sensor signal fidelity. | Use Scenario: Setting trip point for comparator-based fault detection in motor drives or battery management. IC Role / Device Role / Timing Role: Defines 36 V threshold at comparator inverting input via resistor divider. Use Value: Tight 5% tolerance and stable temperature coefficient ensure repeatable triggering across operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4753A | No TR8 tape-and-reel; bulk or ammo-pack only; same electrical specs and DO-41 package. | Not suitable for automated pick-and-place; requires manual or vibratory feed. | Select 1N4753P/TR8 for SMT-line compatibility; choose 1N4753A for hand-solder or low-volume prototyping. |
| MMBZ5245BS-7-F | SOT-23 surface-mount package; 36 V ±5%, 225 mW PD; higher ZZT (17 Ω @ 20 mA) but lower IZM (65 mA). | Designed for space-constrained PCBs; unsuitable for >225 mW continuous dissipation. | Choose MMBZ5245BS-7-F for high-density layouts with low-power requirements; retain 1N4753P/TR8 for 1 W thermal robustness. |
Compared with 1N4753A and MMBZ5245BS-7-F, the 1N4753P/TR8 uniquely combines 1 W power handling, axial-lead mechanical reliability, and EIA-296 tape-and-reel automation support - making it optimal for industrial power supplies requiring long-term thermal stability and production scalability.
Availability
1N4753P/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and sensor excitation systems requiring stable component supply with full traceability and lifecycle management.
Supply support for 1N4753P/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 solutions for aerospace, defense, and industrial markets.
The 1N47xxAP series was designed for general-purpose voltage regulation in ruggedized power systems - emphasizing thermal resilience, JEDEC compliance, and extended temperature operation from -65°C to +150°C.
FAQ
What is the zener voltage tolerance of the 1N4753P/TR8?
The 1N4753P/TR8 has a nominal zener voltage of 36 V with ±5% tolerance, indicated by the "A" suffix in its part number per JEDEC registration. This tolerance applies at TL = 25°C ±8°C with 7.0 mA test current applied for 90 seconds. The 1N4753P/TR8 does not support tighter tolerances like ±1% or ±2% - those require C or D suffix variants not applicable to this specific part number.
Does the 1N4753P/TR8 require dry packing before reflow soldering?
No, the 1N4753P/TR8 is moisture sensitivity level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored and processed without dry pack or baking. Its void-free thermosetting epoxy body and Level 1 classification eliminate preconditioning requirements - a key advantage over higher-MSL discrete components. This simplifies manufacturing flow for the 1N4753P/TR8 in both prototype and high-volume assembly.
What is the maximum continuous power dissipation for the 1N4753P/TR8?
The 1N4753P/TR8 is rated for 1.0 W steady-state power dissipation at lead temperature (TL) below 105°C with 3/8″ (10 mm) lead length from the body. When mounted on an FR4 PCB with 1 oz copper, 4 mm² pads, and 1 mm × 25 mm traces, its derated limit drops to 1.0 W only if ambient temperature remains below 45°C - per Figure 1 in the Microsemi datasheet. Exceeding these limits risks thermal runaway.
Can the 1N4753P/TR8 be used in surface-mount applications?
The 1N4753P/TR8 itself is an axial-lead DO-41 device and is not a surface-mount component. However, its TR8 tape-and-reel packaging enables automated feeding into axial-lead insertion machines or specialized SMT-compatible carriers. For true SMT designs, Microsemi offers equivalents like SMAJ4753A or MLL4753A - but the 1N4753P/TR8 must be mounted through-hole or adapted via custom tooling.
What is the surge current rating of the 1N4753P/TR8 and how is it tested?
The 1N4753P/TR8 has a maximum non-repetitive surge current (ISM) of 1000 mA, measured using a ½-sine wave or equivalent sine wave pulse of 1/120 second duration at 25°C ambient, superimposed on the 7.0 mA test current. This rating validates its capability to absorb transient overvoltage events - such as inductive kickback or ESD-induced spikes - without parametric shift or catastrophic failure.
1N4753P/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:
- ±10%
- 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)
1N4753P/TR8 FAQ
1.How can I place an order for 1N4753P/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4753P/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 1N4753P/TR8 reliable?
The price and inventory of 1N4753P/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4753P/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4753P/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4753P/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4753P/TR8?
1N4753P/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4753P/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 1N4753P/TR8?
For technical support, including 1N4753P/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4753P/TR8 requirements.
6.How does Aetrix verify that 1N4753P/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4753P/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 1N4753P/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4753P/TR8?
All 1N4753P/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4753P/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 1N4753P/TR8 part is unused and in its original packaging.
Return procedure for 1N4753P/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4753P/TR8 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
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SMAZ12-13-F
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