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Microchip Technology 1N752AE3
- Part No.:
- 1N752AE3
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N752AE3.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,567
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Product details
Overview
1N752AE3 from Microsemi is a 500 mW, 5.6 V ±5% Zener diode in DO-35 glass axial package, qualified to JANTX level per MIL-PRF-19500/127, with 8 Ω dynamic impedance at 50 mA, -0.028 / +0.036 %/°C temperature coefficient, and rated for -65°C to +175°C operation. It serves as a precision voltage reference and shunt regulator in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N752AE3 datasheet, 1N752AE3 pinout, 1N752AE3 application, or 1N752AE3 equivalent, key selection criteria include its military-grade reliability, tight thermal stability across wide temperature extremes, low capacitance, RoHS-compliant matte-tin plating, and hermetically sealed DO-35 construction suitable for high-reliability aerospace and defense systems.
Technical Context
This device operates in reverse-biased breakdown mode to maintain stable 5.6 V regulation across load and temperature variations. Its metallurgically bonded junction ensures consistent Zener voltage and low dynamic impedance (8 Ω @ IZT = 50 mA), while the DO-35 glass package provides hermetic sealing and radiation hardness per MicroNote 050.
The 1N752AE3 exhibits a dual-signature temperature coefficient (-0.028 / +0.036 %/°C) indicating voltage drift reversal near room temperature, enabling improved stability in mid-range operating conditions. It supports 50 mA maximum Zener current and delivers 400 mW power dissipation on PCB mounting with linear derating above 55°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.6 V ±5% at IZT = 50 mA - defines nominal regulation point with predictable tolerance band for feedback accuracy |
| Dynamic Impedance ZZT | 8 Ω @ IZT = 50 mA - determines output voltage variation under changing load current |
| Max Power Dissipation | 0.4 W @ TA = 55°C on PCB - sets usable power envelope before thermal shutdown in board-mounted use |
| Temp Coefficient αVZ | -0.028 / +0.036 %/°C - quantifies voltage drift direction and magnitude across operating temperature range |
| Reverse Leakage IR | 5 µA @ VR = 2.5 V - specifies minimum off-state current affecting high-impedance bias networks |
| Junction Temp Range | -65°C to +175°C - enables deployment in extreme environments including space and engine compartments |
| Thermal Resistance RθJA | 300 °C/W on FR4 PCB - governs temperature rise per watt, critical for thermal design margining |
Pinout & Package
Hermetically sealed DO-35 (DO-204AH) glass axial package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during forward bias; unused in Zener regulation mode |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; reverse-biased to maintain 5.6 V reference against anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/127 qualification | JANTX-level screening ensures reliability for mission-critical defense and aerospace applications |
| Hermetic DO-35 glass package | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Metallurgical bond construction | Delivers repeatable Zener voltage and low dynamic impedance across production lots |
| Radiation hardness | Inherent resistance to total ionizing dose (TID), validated per Microsemi MicroNote 050 |
| ESD robustness | Non-sensitive per MIL-STD-750 method 1020 - eliminates need for external ESD protection in handling |
Applications
| Power Supply Feedback Reference | Aerospace Voltage Clamp |
|---|---|
Use Scenario: Stabilizing output voltage in discrete DC-DC converter feedback networks using TL431 alternatives where ultra-low cost and proven heritage are required. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 5.6 V setpoint to op-amp error amplifier input. Use Value: Enables ±1% output regulation over line/load/temperature without trimming, leveraging -0.028/+0.036 %/°C TC crossover for mid-temp stability. | Use Scenario: Protecting avionics sensor inputs from transient overvoltage events on 28 V aircraft buses. IC Role / Device Role / Timing Role: Passive clamping element diverting surge energy to ground when bus voltage exceeds 5.6 V + diode drop. Use Value: Survives repeated 100 V/100 ms transients due to hermetic DO-35 construction and 175°C max junction rating. |
| Defense System Bias Network | Satellite Power Monitor Reference |
Use Scenario: Generating stable bias voltages for RF front-end amplifiers in ruggedized C4ISR radios operating across desert-to-arctic temperature ranges. IC Role / Device Role / Timing Role: Temperature-stable reference source for current-sense amplifier offset calibration. Use Value: Maintains <±2% reference error from -55°C to +125°C, enabled by dual-signature TC and JANTX screening. | Use Scenario: Monitoring solar array voltage in LEO satellites where radiation exposure and thermal cycling exceed commercial component limits. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference in telemetry voltage divider network. Use Value: Delivers verified TID tolerance and no parametric shift after 100 krad(Si), per MicroNote 050 characterization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N752A | Same electrical specs but non-RoHS, tin-lead plating; lacks e3 suffix | Restricted to non-RoHS programs; not acceptable for EU-based satellite or defense export builds | Select 1N752A only if RoHS compliance is not required and legacy tin-lead assembly is used |
| 1N752AUR-1 | MELF DO-213AA surface-mount package; identical VZ, ZZT, and TC specs | Requires SMT reflow process and PCB redesign; unsuitable for through-hole prototyping or repair | Choose 1N752AUR-1 when board space constraints or automated assembly demand MELF packaging |
Compared with 1N752AE3, the 1N752A offers identical performance without RoHS compliance, while 1N752AUR-1 provides identical electrical behavior in a surface-mount MELF package-neither is pin-compatible due to differing form factors, but both serve as functional alternatives in new designs where package type can be adapted.
Availability
1N752AE3 is available at Aetrix Electronics and suitable for aerospace power conditioning, defense system biasing, and satellite telemetry requiring stable component supply with full traceability and extended lifecycle support.
Supply support for 1N752AE3 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 Corporation (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 1N752AE3 belongs to Microsemi's legacy MIL-PRF-19500/127 qualified Zener diode family, designed specifically for voltage regulation in harsh-environment electronics where radiation tolerance, thermal stability, and long-term parameter consistency are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N752AE3?
The 1N752AE3 has a nominal Zener voltage of 5.6 V with a ±5% tolerance, meaning its actual regulation voltage falls between 5.32 V and 5.88 V at IZT = 50 mA and 25°C. This tolerance is defined by the "A" suffix in the part nomenclature and applies across the full military temperature range when derated per MIL-PRF-19500/127 requirements.
Is the 1N752AE3 RoHS compliant?
Yes, the 1N752AE3 is RoHS compliant, indicated by the "e3" suffix in its full designation. It features annealed matte-tin plating on its leads and meets EU Directive 2011/65/EU requirements. RoHS compliance is limited to commercial-grade versions; military-grade variants (JAN/JANTX/JANTXV) retain tin-lead plating unless explicitly specified otherwise.
What does the "E3" suffix mean in 1N752AE3?
The "E3" suffix in 1N752AE3 denotes RoHS-compliant matte-tin lead plating per JEDEC standard J-STD-609. It confirms the part meets lead-free soldering requirements and is qualified for use in environmentally regulated programs, including ESA ECSS-Q-ST-30C and NASA EEE-INST-002, while retaining full MIL-PRF-19500/127 JANTX qualification.
Can the 1N752AE3 replace the 1N752A in existing designs?
Yes, the 1N752AE3 is a direct replacement for the 1N752A in most cases, sharing identical electrical specifications, DO-35 package dimensions, and JANTX qualification level. The only difference is RoHS-compliant plating versus tin-lead; compatibility depends on assembly process-reflow profiles and solder paste must match matte-tin requirements for 1N752AE3.
What is the maximum Zener current rating for the 1N752AE3?
The 1N752AE3 has a maximum Zener current (IZM) of 50 mA at 25°C, derived from its 0.4 W power rating on PCB and 5.6 V nominal voltage. At elevated temperatures, this current must be reduced linearly per the derating curve in Figure 2 of T4-LDS-0288, reaching zero at +175°C ambient.
1N752AE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 2.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N752AE3 FAQ
1.How can I place an order for 1N752AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N752AE3 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 1N752AE3 reliable?
The price and inventory of 1N752AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N752AE3 is usually 5 days.
3.What payment methods are accepted for 1N752AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N752AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N752AE3?
1N752AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N752AE3 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 1N752AE3?
For technical support, including 1N752AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N752AE3 requirements.
6.How does Aetrix verify that 1N752AE3 is sourced from the original manufacturer or authorized distributors?
All 1N752AE3 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 1N752AE3 meets industry standards.
7.What is the process for return or replacement of 1N752AE3?
All 1N752AE3 units undergo pre-shipment inspection (PSI). If there is an issue with 1N752AE3, 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 1N752AE3 part is unused and in its original packaging.
Return procedure for 1N752AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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