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Rectron USA 1.5KE36A-T
- Part No.:
- 1.5KE36A-T
- Manufacturer:
- Rectron USA
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE36A-T.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:100,800
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Product details
Overview
1.5KE36A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 34.2V minimum breakdown voltage, 49.9V maximum clamping voltage at 30A peak pulse current, and operates across -55°C to +175°C.
For engineers reviewing the 1.5KE36A-T datasheet, 1.5KE36A-T pinout, 1.5KE36A-T application, or 1.5KE36A-T equivalent, this device serves as a robust, RoHS-compliant, lead-free TVS for automotive power supply protection, industrial I/O interface surge suppression, and telecom line conditioning where fast response (<1 ns), low leakage (<5 µA @ 30.8V), and stable temperature coefficient (0.099%/°C) are critical.
Technical Context
This unidirectional TVS diode uses glass-passivated silicon junction technology to achieve precise reverse standoff (30.8V), sharp avalanche turn-on, and repeatable clamping performance under 1.0ms 8/20µs surge waveforms. Its axial-leaded DO-201 package enables through-hole mounting with 9.5mm lead length thermal derating capability.
The device delivers 1500W non-repetitive peak pulse power dissipation while maintaining low dynamic impedance (≈1.6 Ω calculated from ΔV/ΔI), enabling effective energy diversion during ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5). It is rated for 200A forward surge current and exhibits <3.5V forward voltage at 50A pulse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - Sustains single 1.0ms transient events without failure, suitable for Level 4 IEC 61000-4-5 surge testing. |
| Reverse Standoff Voltage | 30.8V - Maximum continuous DC operating voltage before significant leakage; sets system rail margin. |
| Breakdown Voltage | 34.2V min / 37.8V max @ 1.0mA - Tight VBR tolerance ensures predictable turn-on threshold across temperature. |
| Clamping Voltage | 49.9V @ 30A - Limits downstream voltage during surge; defines protected circuit's absolute maximum stress level. |
| Leakage Current | <5.0µA @ 30.8V - Minimizes standby power loss and avoids false triggering in high-impedance sensing circuits. |
| Operating Temperature | -55°C to +175°C - Supports under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
| Temp Coefficient | 0.099%/°C - Predictable VBR drift enables accurate overvoltage margining across wide ambient ranges. |
Pinout & Package
Package: DO-201 axial-leaded glass-passivated epoxy case (UL 94V-0), 1.12g weight, tin-finished leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during reverse surge | Connected to protected line; conducts avalanche current to ground when VR exceeds VBR. |
| Cathode | Reference terminal / polarity marker | Marked with band; ties to system ground or lower-potential rail; defines unidirectional conduction path. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Enhances long-term reliability and moisture resistance vs. plastic-passivated alternatives; meets J-STD-020 Level 1 MSL. |
| 1500W peak pulse rating | Enables protection against high-energy transients (e.g., ISO 7637-2 Pulse 5a) without cascading failure. |
| Fast response time | <1.0 ns turn-on - Clamps before sensitive ICs experience overstress, critical for USB, CAN, and RS-485 interfaces. |
| RoHS & Halogen-free | Complies with EU RoHS 3 (2015/863/EU); Br+Cl <1500ppm, Sb <1000ppm - supports green manufacturing and end-of-life recycling. |
| Axial lead configuration | Enables manual or wave-solder assembly; 9.5mm lead length allows 5.0W steady-state dissipation at TL = 75°C. |
Applications
| Automotive Power Rail Protection | Industrial PLC Digital I/O |
|---|---|
Use Scenario: 12V/24V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Primary clamping element placed between power input and upstream fuse or DC-DC converter. Use Value: Limits transient voltage to ≤49.9V, preventing damage to 36V-rated regulators and microcontrollers. |
Use Scenario: 24V digital input modules receiving signals from field sensors in factory automation. IC Role / Device Role: Input-stage surge limiter on dry-contact or PNP/NPN sensor lines. Use Value: Absorbs 1kV/500A surges (IEC 61000-4-5) while maintaining <5µA leakage to avoid false logic state detection. |
| Telecom Line Interface | Medical Equipment Power Entry |
Use Scenario: T1/E1 line cards or PoE-powered Ethernet switches handling induced lightning surges. IC Role / Device Role: Secondary protection after gas discharge tube (GDT), providing low-clamp refinement. Use Value: Reduces clamped voltage from ~100V (GDT alone) to 49.9V, safeguarding PHY transceivers and magnetics. |
Use Scenario: AC/DC front-end of Class II medical devices requiring reinforced isolation and low leakage. IC Role / Device Role: MOV replacement on secondary-side DC bus for improved longevity and no wear-out mechanism. Use Value: Eliminates degradation-related failure modes of MOVs; maintains stable clamping over >10⁵ surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A (Diodes Inc.) | Same VRWM (36V), but SMB package (surface-mount), 600W rating, lower IPP (24.4A), higher CJ (~200pF). | Better suited for PCB space-constrained designs; less effective for high-energy surges due to lower Ppk. | Select when board area is limited and surge energy is ≤600W; verify layout thermal relief for SMB footprint. |
| P6KE36A (ON Semiconductor) | Near-identical DO-201 package, same 1500W rating, but wider VBR tolerance (33.3–38.7V) and higher clamping (51.3V @ 29.3A). | Acceptable where 1.4V higher clamping is within system margin; may require revalidation of downstream voltage ratings. | Use if cross-sourcing legacy P6KE-based designs; confirm VC margin against protected IC absolute maximum ratings. |
Compared with SMBJ36A and P6KE36A, the 1.5KE36A-T offers superior energy handling in through-hole format with tighter VBR control and lower clamping-making it optimal for high-reliability, high-surge environments where mechanical robustness and thermal mass matter.
Availability
1.5KE36A-T is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O modules, and telecom line interface circuits requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1.5KE36A-T 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the US.
The 1.5KE series belongs to Diodes' high-power TVS portfolio, engineered specifically for ruggedized overvoltage protection in automotive, industrial, and infrastructure applications demanding AEC-Q200 alignment and extended temperature operation.
FAQ
What is the difference between 1.5KE36A-T and 1.5KE36CA-T?
The 1.5KE36A-T is unidirectional, with cathode-banded marking and conduction only during reverse overvoltage; the 1.5KE36CA-T is bidirectional, symmetrically clamps both polarities, lacks cathode band, and has identical VRWM, VBR, and VC values for positive and negative surges. Use 'A' for DC rail protection and 'CA' for AC-coupled or floating signal lines.
Can 1.5KE36A-T be used in place of a MOV for surge protection?
Yes-unlike MOVs, the 1.5KE36A-T has no wear-out mechanism, stable clamping voltage over lifetime, and faster response (<1 ns vs. ~25 ns for MOVs). However, its 1500W rating applies to single pulses; for repetitive surges, thermal management and duty cycle must be validated per JEDEC JESD22-A108.
Is 1.5KE36A-T qualified to AEC-Q200?
No-the datasheet states AEC-Q200 qualification requires specific change control and PPAP capability, which must be requested separately. Standard 1.5KE36A-T is not pre-qualified; Diodes offers automotive-grade variants (e.g., 1.5KE36A-Q) with full AEC-Q200 documentation and IATF 16949 manufacturing.
What is the maximum allowable lead length for thermal derating?
At 75°C lead temperature (TL), the device sustains 5.0W steady-state power; exceeding 9.5mm lead length reduces thermal resistance and increases safe operating area. Derating curves in DS21503 Rev. 12 show 50% power reduction at TL = 100°C, requiring shorter leads or heatsinking for high-ambient deployments.
1.5KE36A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Rectron USA
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE36A-T FAQ
1.How can I place an order for 1.5KE36A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36A-T 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 1.5KE36A-T reliable?
The price and inventory of 1.5KE36A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE36A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE36A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36A-T?
1.5KE36A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36A-T 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 1.5KE36A-T?
For technical support, including 1.5KE36A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36A-T requirements.
6.How does Aetrix verify that 1.5KE36A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE36A-T 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 1.5KE36A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE36A-T?
All 1.5KE36A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36A-T, 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 1.5KE36A-T part is unused and in its original packaging.
Return procedure for 1.5KE36A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36A-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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