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Microchip Technology 1N5350AE3/TR13
- Part No.:
- 1N5350AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5350AE3/TR13.pdf
- Description:
- DIODE ZENER 13V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,888
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Product details
Overview
1N5350AE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 13 V, ±10% tolerance (A suffix), 100 mA maximum regulator current (IZM), 2.5 Ω maximum dynamic impedance (ZZ), and 1.0 μA reverse leakage at 9.4 V. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5350AE3/TR13 datasheet, 1N5350AE3/TR13 pinout, 1N5350AE3/TR13 application, or 1N5350AE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (7.0 A), voltage regulation (ΔVZ = 0.25 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown, with Zener voltage specified at 100 mA test current (IZT) and measured at lead temperature TL = 25 °C ±8/–2 °C. Its low dynamic impedance (2.5 Ω) ensures stable regulation across load variations.
The 1N5350AE3/TR13 uses void-free thermosetting epoxy encapsulation (UL94V-0), cathode-indicating band polarity, and is rated for 260 °C soldering (10 s max). It meets moisture sensitivity Level 1 per J-STD-020B - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±10% - defines nominal regulation point under 100 mA DC bias; high-end limit is 14.3 V for IZM calculation. |
| Power Dissipation | 5.0 W at TL < 25 °C (3/8″ lead length) - requires heatsinking above ambient to sustain full power. |
| Dynamic Impedance (ZZ) | 2.5 Ω max at IZT = 100 mA - low impedance enables tight voltage regulation under varying load currents. |
| Reverse Leakage (IR) | 1.0 μA max at VR = 9.4 V - confirms low standby power loss in voltage-clamp configurations. |
| Surge Current (IZSM) | 7.0 A peak (8.3 ms half-sine) - supports transient overvoltage suppression without failure. |
| Thermal Resistance | 25 °C/W junction-to-lead - enables thermal design using lead conduction; 85 °C/W junction-to-ambient on FR4. |
| Voltage Regulation (ΔVZ) | 0.25 V - difference between VZ at 10% and 50% of IZM; quantifies regulation linearity over operating range. |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by colored band. Leads are annealed matte-tin plated (RoHS compliant, e3 suffix), solderable per MIL-STD-750 Method 2026. Weight: 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to circuit ground or lower potential; forward voltage ≤1.2 V @ 1.0 A. |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to supply rail requiring clamping or reference; reverse-biased during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions, marking, and electrical test conditions across global supply chain. |
| ±10% voltage tolerance (A suffix) | Cost-optimized regulation accuracy suitable for non-critical reference and clamp applications. |
| RoHS-compliant (e3 suffix) | Meets environmental compliance requirements without lead-based plating; compatible with Pb-free assembly. |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life constraints - simplifies handling and storage logistics. |
| High surge current capability | Withstands 7.0 A (8.3 ms) transients - enables use in unprotected input stages without external TVS. |
Applications
| Industrial Power Supply Regulation | Overvoltage Clamp in DC-DC Converters |
|---|---|
Use Scenario: Stabilizing feedback reference in isolated flyback converters operating from 24 V or 48 V rails. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference providing stable 13 V bias for optocoupler or error amplifier. Use Value: Maintains regulation within ±0.25 V across 10–50% of IZM, enabling consistent loop response under line/load variation. |
Use Scenario: Protecting gate drivers or controller ICs from input voltage spikes in 12–24 V automotive DC-DC modules. IC Role / Device Role / Timing Role: Passive overvoltage clamp placed across sensitive IC supply pins. Use Value: Limits transient excursions to ≤14.3 V (VZ max), preventing latch-up or oxide damage during load dump events. |
| Programmable Current Source Bias | Temperature-Stable Reference for Sensor Conditioning |
Use Scenario: Setting bias current for LED drivers or op-amp constant-current sinks in factory automation I/O modules. IC Role / Device Role / Timing Role: Zener-based current-setting element in series with a current-sense resistor. Use Value: Delivers repeatable 100 mA reference current with <0.5% drift over –40 to +85 °C due to low ΔVZ and stable ZZ. |
Use Scenario: Providing excitation voltage for RTD or strain gauge bridges in industrial process transmitters. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference source for ratiometric analog front-ends. Use Value: Enables <±0.1% bridge excitation stability over temperature via tight thermal coupling to PCB copper and low IR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5350B | Same 13 V nominal VZ, but ±5% tolerance (B suffix); higher IZM = 7.0 A vs. 6.7 A; ZZ = 2.5 Ω unchanged. | Preferred where tighter regulation accuracy is required without changing layout or thermal design. | Select 1N5350B when ±5% tolerance is needed for improved reference stability; same package and mounting. |
| MMBZ5243B (ON Semiconductor) | SMD SOT-23 package; 13 V ±5%; 0.225 W power rating; 100 Ω typical ZZ; not drop-in replaceable. | Limited to low-power signal-level clamping; unsuitable for 5 W dissipation or high-surge scenarios. | Choose MMBZ5243B only for space-constrained, low-current biasing; not a functional substitute for 1N5350AE3/TR13's power handling. |
Compared with 1N5350B and MMBZ5243B, the 1N5350AE3/TR13 offers unique value in high-power, through-hole mounted voltage regulation with RoHS compliance and proven surge robustness - making it irreplaceable in industrial power and protection circuits where thermal mass and lead-frame conduction are critical.
Availability
1N5350AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage clamp in DC-DC converters, and programmable current source bias requiring stable component supply and long-term lifecycle support.
Supply support for 1N5350AE3/TR13 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, RF, and discrete components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for ruggedized, high-power voltage regulation in harsh-environment power systems - emphasizing thermal robustness, surge immunity, and JEDEC-standardized manufacturability.
FAQ
What is the Zener voltage tolerance of the 1N5350AE3/TR13?
The 1N5350AE3/TR13 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its actual breakdown voltage falls between 11.7 V and 14.3 V at 100 mA test current and 25 °C lead temperature. The tolerance is verified per JEDEC standards and applies across the full operating temperature range of –65 °C to +150 °C.
Can the 1N5350AE3/TR13 be used in surface-mount designs?
No - the 1N5350AE3/TR13 is an axial-leaded T-18 package device and is not surface-mount compatible. For SMT equivalents, Microsemi offers the SMBJ5350B or SMBG5350B in DO-214AA (SMB) package. These share identical electrical specs but require different PCB layout, thermal pad design, and reflow profiles compared to the 1N5350AE3/TR13.
What is the maximum steady-state power dissipation for the 1N5350AE3/TR13 on a standard FR4 board?
When mounted on a standard FR4 PCB (1 oz Cu, 4 mm² copper pads, 1 mm track width, 25 mm length), the 1N5350AE3/TR13 delivers 1.47 W steady-state power at TA = 25 °C. This derates linearly to zero at +150 °C ambient, based on its 85 °C/W junction-to-ambient thermal resistance - significantly lower than its 25 °C/W junction-to-lead rating.
Does the "e3" suffix on 1N5350AE3/TR13 indicate RoHS compliance?
Yes - the "e3" suffix explicitly denotes RoHS-compliant construction: matte-tin plated leads (no lead or cadmium), halogen-free epoxy molding compound, and full compliance with Directive 2011/65/EU. This is confirmed in Microsemi's official documentation and verified through authorized distributor data sheets and packaging markings.
How is the voltage regulation (ΔVZ) of 0.25 V measured for the 1N5350AE3/TR13?
ΔVZ = 0.25 V is the difference between the Zener voltage measured at 10% of IZM (6.7 mA) and at 50% of IZM (33.5 mA), both at TL = 25 °C. This parameter quantifies regulation linearity - a lower ΔVZ indicates flatter VZ vs. IZ curve, critical for maintaining accuracy in variable-load applications using the 1N5350AE3/TR13.
1N5350AE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- T-18
1N5350AE3/TR13 FAQ
1.How can I place an order for 1N5350AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5350AE3/TR13 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 1N5350AE3/TR13 reliable?
The price and inventory of 1N5350AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5350AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5350AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5350AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5350AE3/TR13?
1N5350AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5350AE3/TR13 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 1N5350AE3/TR13?
For technical support, including 1N5350AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5350AE3/TR13 requirements.
6.How does Aetrix verify that 1N5350AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5350AE3/TR13 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 1N5350AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5350AE3/TR13?
All 1N5350AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5350AE3/TR13, 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 1N5350AE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5350AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5350AE3/TR13 Tags
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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