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Microchip Technology 1N5353BE3/TR8
- Part No.:
- 1N5353BE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5353BE3/TR8.pdf
- Description:
- DIODE ZENER 16V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,083
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Product details
Overview
1N5353BE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 16 V, ±5% tolerance (B suffix), 75 mA test current (IZT), 2.5 Ω dynamic impedance (ZZ), and 295 Ω knee impedance (ZZK) at 1 mA - used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5353BE3/TR8 datasheet, 1N5353BE3/TR8 pinout, 1N5353BE3/TR8 application, or 1N5353BE3/TR8 equivalent, key selection criteria include Zener voltage stability under varying load/temperature, surge current capability (6.0 A), thermal resistance (25 °C/W junction-to-lead), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device operates as a reverse-biased voltage regulator with specified Zener voltage measured at 40 ±10 ms after DC current application and thermal equilibrium at TL = 25 °C. Its regulation performance is defined by ΔVZ = 0.30 V (difference between voltages at 10% and 50% of IZM) and maintains low dynamic impedance across its operating current range.
The 1N5353BE3/TR8 uses a void-free thermosetting epoxy T-18 package rated for -65 °C to +150 °C operation, with cathode indicated by band and polarity requiring banded end to be positive relative to the unmarked end during regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±5% - stable reference point for feedback networks in linear regulators and SMPS. |
| Test Current (IZT) | 75 mA - operating point where VZ and ZZ are guaranteed; defines minimum bias for regulation. |
| Dynamic Impedance (ZZ) | 2.5 Ω - low AC impedance ensures minimal output voltage variation under dynamic load changes. |
| Max Regulator Current (IZM) | 6.0 A - peak DC current achievable with adequate heat sinking (TL < 25 °C, 3/8″ lead length). |
| Voltage Regulation (ΔVZ) | 0.30 V - difference between VZ at 10% and 50% of IZM; quantifies regulation linearity. |
| Surge Current (IZSM) | 6.0 A - non-repetitive 8.3 ms half-sine peak current handling for transient suppression. |
| Thermal Resistance (RθJL) | 25 °C/W - junction-to-lead thermal path enables high-power operation with simple lead heatsinking. |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-201AD standard; void-free UL94V-0 epoxy body; cathode identified by colored band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current sink in reverse bias | Connected to lower-potential node (e.g., ground or return path) during regulation. |
| Cathode (banded end) | Regulated voltage output | Delivers stable 16 V reference when reverse-biased; must be held positive relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions, marking, and reliability testing across manufacturers. |
| Moisture sensitivity Level 1 | No dry pack required before PCB assembly - simplifies SMT/reflow logistics and reduces handling cost. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during board assembly or field service. |
| RoHS-compliant (e3 suffix) | Meets EU Directive 2011/65/EU with lead-free matte-tin plating and halogen-free epoxy. |
| High surge current rating | Withstands 6.0 A (8.3 ms half-sine) - suitable for input-stage transient clamping in industrial power supplies. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Provides precise 16 V reference in optocoupler-based feedback loop of isolated DC-DC converters. IC Role / Device Role / Timing Role: Zener voltage reference establishing error amplifier threshold and isolation boundary voltage level. Use Value: Maintains ±0.30 V regulation across 0.75–3.0 A load steps, enabling <±1% output voltage accuracy over line/load/temperature. | Use Scenario: Supplies stable excitation voltage to bridge-type pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Precision analog reference source for ratiometric sensor signal conditioning. Use Value: Delivers 16 V ±5% with <2.5 Ω dynamic impedance, minimizing sensor output drift due to supply variation. |
| Overvoltage Protection Clamp | Programmable Voltage Monitor Input |
Use Scenario: Clamps 24 V rail surges in PLC I/O modules during inductive load switching. IC Role / Device Role / Timing Role: Shunt protection element diverting excess energy to ground during transients. Use Value: Absorbs 6.0 A surge (8.3 ms) without degradation, protecting downstream 16 V logic supervisors and ADCs. | Use Scenario: Sets trip threshold for comparator-based brown-out detection in battery-powered telemetry units. IC Role / Device Role / Timing Role: Fixed-voltage reference input to comparator's inverting terminal. Use Value: Enables accurate 16 V undervoltage lockout with <0.30 V hysteresis margin, preventing false resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5353B (non-e3, non-TR8) | Same electrical specs but SnPb lead finish and bulk packaging; lacks RoHS compliance and tape-and-reel convenience. | Not suitable for RoHS-mandated production or automated pick-and-place assembly. | Select only for legacy repair or non-RoHS prototyping where tape-and-reel is unnecessary. |
| MMSZ5245B-TP (Micro Commercial Components) | Surface-mount SOD-123 package; 16 V ±5%, 20 mA IZT, 100 mW power - not a direct replacement due to 5 W vs. 0.2 W rating. | Limited to low-power signal-level referencing; cannot replace 1N5353BE3/TR8 in power regulation roles. | Consider only for space-constrained, low-current biasing where thermal dissipation is negligible. |
Compared with 1N5353BE3/TR8, the 1N5353B offers identical regulation but requires manual handling and violates modern environmental directives, while MMSZ5245B-TP trades power capability for miniaturization - neither supports the 5 W thermal management or axial-mounting flexibility critical to industrial power designs.
Availability
1N5353BE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, sensor excitation circuits, overvoltage protection clamps, and programmable voltage monitor inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5353BE3/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 1N53xxB series was designed specifically for robust, high-power voltage regulation in harsh-environment power systems - emphasizing thermal resilience, surge immunity, and long-term parametric stability.
FAQ
What is the Zener voltage tolerance of the 1N5353BE3/TR8?
The 1N5353BE3/TR8 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its regulated voltage falls within 15.2 V to 16.8 V at 75 mA test current and 25 °C lead temperature. The e3 suffix confirms RoHS compliance, and TR8 denotes tape-and-reel packaging per EIA-296 standards - all consistent with Microsemi's published electrical characteristics table for the 1N5353B variant.
Can the 1N5353BE3/TR8 be used in surface-mount designs?
No, the 1N5353BE3/TR8 is an axial-leaded T-18 (DO-201AD) through-hole device and is not compatible with surface-mount assembly. For SMT equivalents, Microsemi offers the SMBJ5353B or SMBG5353B in SMB/SMBG packages - these share the same 16 V ±5% regulation but differ in thermal performance, surge rating, and mounting method. The 1N5353BE3/TR8 requires manual or wave soldering with 3/8″ lead length for optimal 5 W power dissipation.
What is the maximum steady-state power dissipation for the 1N5353BE3/TR8 on a standard PCB?
When mounted on a FR4 PCB with 1 oz copper, 4 mm² pads, and 1 mm × 25 mm traces, the 1N5353BE3/TR8 delivers 1.47 W steady-state power at 25 °C ambient - derived from its 85 °C/W junction-to-ambient thermal resistance. This is significantly lower than its 5 W rating at TL = 25 °C (3/8″ lead length), confirming that effective lead heatsinking is essential to achieve full 5 W operation. Derating curves in Microsemi's datasheet show linear reduction above 25 °C.
Does the 1N5353BE3/TR8 require dry packing before reflow soldering?
No, the 1N5353BE3/TR8 has IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or floor-life restrictions. Its void-free epoxy encapsulation eliminates moisture ingress risk, allowing direct use from reel in standard reflow or wave soldering processes - a key advantage over higher-MSL discrete components requiring baking or humidity-controlled storage.
How does the voltage regulation (ΔVZ) specification impact circuit design using the 1N5353BE3/TR8?
The 1N5353BE3/TR8 specifies ΔVZ = 0.30 V - the difference between Zener voltage measured at 10% and 50% of its maximum regulator current (IZM = 6.0 A). This parameter directly quantifies regulation linearity: a lower ΔVZ indicates flatter VZ vs. IZ curve, reducing output variation across wide load ranges. In practice, this enables tighter output voltage control in feedback networks without additional compensation, especially critical in precision 16 V references for ADC biasing or comparator thresholds.
1N5353BE3/TR8 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):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 11.5 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
1N5353BE3/TR8 FAQ
1.How can I place an order for 1N5353BE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5353BE3/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 1N5353BE3/TR8 reliable?
The price and inventory of 1N5353BE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5353BE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5353BE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5353BE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5353BE3/TR8?
1N5353BE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5353BE3/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 1N5353BE3/TR8?
For technical support, including 1N5353BE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5353BE3/TR8 requirements.
6.How does Aetrix verify that 1N5353BE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5353BE3/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 1N5353BE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5353BE3/TR8?
All 1N5353BE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5353BE3/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 1N5353BE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5353BE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5353BE3/TR8 Tags
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