My Inquiry
My Account
Microchip Technology 1N5361BE3/TR8
- Part No.:
- 1N5361BE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5361BE3/TR8.pdf
- Description:
- DIODE ZENER 27V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,131
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5361BE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 27 V, ±5% tolerance (B suffix), 50 mA test current (IZT), 5.0 Ω maximum dynamic impedance (ZZ), and 120 mA maximum Zener current (IZM) at TL = 25°C. It operates from –65°C to +150°C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5361BE3/TR8 datasheet, 1N5361BE3/TR8 pinout, 1N5361BE3/TR8 application, or 1N5361BE3/TR8 equivalent, key selection criteria include Zener voltage stability under varying load current, thermal resistance (25 °C/W junction-to-lead), surge current rating (120 A), low voltage regulation drift (ΔVZ = 4.1 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown, where Zener voltage (27 V) is maintained across its terminals within ±5% over a wide current range (10–120 mA). Its low dynamic impedance (5.0 Ω) ensures minimal voltage variation with load changes, and its 25 °C/W junction-to-lead thermal resistance enables stable operation up to 150°C ambient when mounted with 3/8″ lead length.
The 1N5361BE3/TR8 features a void-free thermosetting epoxy T-18 package rated UL94V-0, cathode band polarity marking, and compliance with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. It withstands 8.3 ms half-sine surge currents up to 120 A and exhibits <0.6 V forward voltage at 1.0 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±5% - precise regulation point for feedback sensing in 24 V system rails |
| Test Current (IZT) | 50 mA - standardized bias point for measuring VZ and ZZ under controlled conditions |
| Dynamic Impedance (ZZ) | 5.0 Ω max - low AC resistance ensures <0.25 V deviation across 50 mA load change |
| Max Zener Current (IZM) | 120 mA - maximum continuous DC current at TL = 25°C with adequate heat sinking |
| Voltage Regulation (ΔVZ) | 4.1 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Surge Current (IZSM) | 120 A - peak non-repetitive 8.3 ms half-sine current handling for transient suppression |
| Thermal Resistance | 25 °C/W junction-to-lead - enables reliable 5 W dissipation with minimal temperature rise at 3/8″ lead length |
Pinout & Package
Package: Axial-leaded T-18 plastic encapsulated case (UL94V-0 epoxy), cathode indicated by color band. Leads are annealed matte-tin plated (RoHS compliant, e3 suffix), solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased reference terminal | Connected to lower-potential node; current flows into cathode during regulation |
| Cathode | Regulated output terminal | Banded end; maintains stable 27 V relative to anode under reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard 1N53xxB series mechanical and electrical definitions |
| ±5% voltage tolerance | Ensures predictable regulation without post-production trimming in cost-sensitive designs |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and bake-out prior to PCB assembly |
| Nonsensitive to ESD | Withstands MIL-STD-750 Method 1020 testing-no special handling needed on production floor |
| High surge current rating | 120 A capability supports robust transient protection in industrial power inputs |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler feedback path. IC Role / Device Role / Timing Role: Precision voltage reference providing error signal to PWM controller. Use Value: 27 V Zener voltage matches common 24 V rail overvoltage threshold; 5.0 Ω ZZ minimizes feedback loop gain variation. |
Use Scenario: Protecting downstream circuitry from input surges in 24 V DC industrial systems. IC Role / Device Role / Timing Role: Shunt clamping element diverting excess energy to ground during transients. Use Value: 120 A surge rating absorbs IEC 61000-4-5 Level 4 surges; 4.1 V ΔVZ ensures consistent clamping window. |
| Programmable Voltage Reference | DC Link Voltage Monitor |
Use Scenario: Generating stable reference for ADCs or comparators in battery-powered instrumentation. IC Role / Device Role / Timing Role: Two-terminal passive reference source with low tempco dependency. Use Value: –65°C to +150°C operating range supports extended-temperature deployments; 25 °C/W thermal resistance enables stable VZ in compact enclosures. |
Use Scenario: Monitoring high-side DC bus voltage in motor drives before gate driver activation. IC Role / Device Role / Timing Role: High-voltage sense node clamp preventing false triggering of protection logic. Use Value: 27 V regulation point aligns with 24 V system derating margin; RoHS-compliant plating ensures long-term solder joint reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5361B | No e3/RoHS suffix; SnPb plating instead of matte-tin | Not suitable for RoHS-compliant assemblies; requires Pb-aware process control | Select only if legacy Pb-based soldering is mandated and environmental compliance is not required |
| SMBJ5361B | Surface-mount SMB package (vs. axial T-18); same 27 V/5 W specs | Requires PCB redesign for SMT placement; better thermal performance on copper pads | Choose for space-constrained or automated assembly environments where board real estate is limited |
Compared with 1N5361B and SMBJ5361B, the 1N5361BE3/TR8 uniquely combines RoHS compliance, tape-and-reel packaging (TR8), axial through-hole mounting flexibility, and verified 25 °C/W thermal resistance-making it optimal for industrial power supply service replacements and new designs requiring lead-free assembly and manual rework capability.
Availability
1N5361BE3/TR8 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, programmable voltage references, and DC link monitoring applications requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N5361BE3/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 ruggedized voltage regulation in harsh-environment power systems-emphasizing wide temperature operation, surge resilience, and JEDEC-standardized mechanical compatibility.
FAQ
What is the Zener voltage tolerance of the 1N5361BE3/TR8?
The 1N5361BE3/TR8 has a ±5% Zener voltage tolerance, confirmed by the "B" suffix in its part number per Microsemi's datasheet. This means its regulated voltage falls between 25.65 V and 28.35 V at 50 mA test current and 25°C lead temperature. The 1N5361BE3/TR8 is not rated for tighter tolerances such as ±1% or ±2%-those require C or D suffix variants.
Does the 1N5361BE3/TR8 require dry packing before PCB assembly?
No, the 1N5361BE3/TR8 has IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, meaning it may be stored and assembled without dry pack or baking. Its void-free thermosetting epoxy T-18 package inherently limits moisture ingress, eliminating preconditioning steps required for higher-level devices-reducing manufacturing overhead for the 1N5361BE3/TR8.
What is the maximum continuous power dissipation for the 1N5361BE3/TR8?
The 1N5361BE3/TR8 is rated for 5.0 W steady-state power dissipation at TL = 25°C with 3/8″ (10 mm) lead length from body. Derating is required above 25°C per Figure 1 in the datasheet: power drops linearly to zero at 150°C junction temperature. On FR4 PCB with 4 mm² copper pads, its usable power is reduced to 1.47 W at TA = 25°C due to higher thermal resistance (85 °C/W).
Can the 1N5361BE3/TR8 be used as a replacement for the 1N5361B?
Yes-the 1N5361BE3/TR8 is functionally identical to the 1N5361B in all electrical and thermal specifications, differing only in RoHS-compliant matte-tin plating (e3 suffix) and tape-and-reel packaging (TR8 suffix). No PCB layout or schematic changes are needed; the 1N5361BE3/TR8 replaces the 1N5361B directly in lead-free assembly processes while maintaining identical regulation behavior.
What is the surge current rating of the 1N5361BE3/TR8 and how is it defined?
The 1N5361BE3/TR8 has a maximum non-repetitive surge current (IZSM) of 120 A, defined as the peak value of an 8.3 ms half-sine waveform per Note 5 in the datasheet. This rating reflects its ability to absorb transient energy without failure-critical for protecting downstream components in industrial 24 V power inputs exposed to lightning-induced or inductive-switching surges.
1N5361BE3/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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 19.4 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
1N5361BE3/TR8 FAQ
1.How can I place an order for 1N5361BE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5361BE3/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 1N5361BE3/TR8 reliable?
The price and inventory of 1N5361BE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5361BE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5361BE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5361BE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5361BE3/TR8?
1N5361BE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5361BE3/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 1N5361BE3/TR8?
For technical support, including 1N5361BE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5361BE3/TR8 requirements.
6.How does Aetrix verify that 1N5361BE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5361BE3/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 1N5361BE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5361BE3/TR8?
All 1N5361BE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5361BE3/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 1N5361BE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5361BE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5361BE3/TR8 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
