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Diodes Incorporated 1.5KE36CA-T
- Part No.:
- 1.5KE36CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE36CA-T.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,383
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Product details
Overview
1.5KE36CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for overvoltage protection of DC power lines and signal interfaces. It features a 30.8V reverse standoff voltage, 34.2–37.8V breakdown range at 1mA, 49.9V clamping voltage at 30A peak pulse current, and operates from –55°C to +175°C.
For engineers reviewing the 1.5KE36CA-T datasheet, 1.5KE36CA-T pinout, 1.5KE36CA-T application, or 1.5KE36CA-T equivalent, this part delivers fast-response surge suppression for automotive infotainment power rails, industrial I/O ports, telecom line cards, and AC/DC adapter inputs where bidirectional clamping and high-energy handling are required.
Technical Context
This bidirectional TVS diode uses glass-passivated silicon junctions to achieve sub-nanosecond response time and stable clamping under repetitive 1.0ms 1500W pulses. Its symmetrical avalanche structure enables equal clamping in both polarities without external polarity biasing.
The device is rated for 5.0W steady-state dissipation at 75°C lead temperature and supports 200A non-repetitive forward surge current. Temperature coefficient of breakdown voltage is +0.099%/°C, enabling predictable derating across its –55°C to +175°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms pulse - handles lightning-induced surges per IEC 61000-4-5 Level 4 (4kV) |
| Reverse Standoff Voltage | 30.8V - maximum continuous DC or RMS voltage before clamping initiates |
| Breakdown Voltage Range | 34.2V–37.8V @ 1mA - ensures reliable avalanche conduction onset with tight manufacturing tolerance |
| Max Clamping Voltage | 49.9V @ 30A IPP - limits protected circuit voltage during worst-case surge event |
| Operating Temperature | –55°C to +175°C - supports under-hood automotive and industrial environments without derating loss |
| Leakage Current | ≤5.0μA @ 30.8V - minimizes standby power loss in always-on systems |
| Package | DO-201 axial lead - compatible with through-hole PCB assembly and manual repair workflows |
Pinout & Package
DO-201 package: axial-leaded, glass-passivated silicon die in transfer-molded epoxy housing (UL 94V-0). Leads are tin-finished, solderable per MIL-STD-202 Method 208. Bidirectional marking shows type number only (no cathode band).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (negative polarity) | Conducts during negative transients; symmetric with cathode for bidirectional operation |
| Cathode | Surge current entry (positive polarity) | Conducts during positive transients; identical avalanche characteristics to anode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| Glass-passivated junction | Improves long-term reliability and moisture resistance vs. epoxy-only passivation |
| RoHS 3 & Halogen-free | Meets EU Directive 2015/863/EU with Br+Cl <1500ppm and Sb <1000ppm - compliant for green manufacturing |
| 1.12g weight & axial leads | Supports automated insertion and wave soldering; low mass reduces thermal stress during rework |
Applications
| Automotive Infotainment Power Rail | Industrial PLC Digital I/O Port |
|---|---|
Use Scenario: Protects USB-C PD and HDMI power delivery lines in head units against load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed between VBUS and GND to clamp ±300V spikes within 1ns. Use Value: Prevents damage to USB-PD controllers and level shifters by limiting clamped voltage to 49.9V at 30A. |
Use Scenario: Shields 24V digital input modules from inductive kickback when switching solenoids or relays. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input traces before optocoupler isolation barrier. Use Value: Absorbs 1500W surge energy without degradation, maintaining signal integrity across 100k-cycle industrial lifetime. |
| Telecom Line Card Protection | AC/DC Adapter Input Stage |
Use Scenario: Guards Ethernet PHY interface power pins against ESD and induced surges on outdoor PoE++ links. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing low-clamp refinement. Use Value: Reduces residual clamping voltage from >100V (GDT alone) to ≤49.9V, safeguarding 3.3V/5V PHY ICs. |
Use Scenario: Suppresses differential-mode surges on primary-side rectifier output in 12V/24V wall adapters. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor to limit voltage overshoot during AC line switching events. Use Value: Limits capacitor voltage excursion to 49.9V, preventing overvoltage failure of downstream PWM controller and MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | 600W rating, SMB surface-mount package, 52.0V clamping at 24.6A | Lower power handling; suited for space-constrained PCBs but not for 1500W surge events | Select when board area is critical and surge threat level is ≤Level 3 (2kV IEC 61000-4-5) |
| 1.5SMC36CA | Same 1500W rating, SMC package, 52.0V clamping at 28.8A, higher thermal resistance | Surface-mount alternative with reduced mounting flexibility and higher junction temp rise | Choose for automated SMT lines where axial DO-201 insertion is unavailable |
Compared with SMBJ36CA and 1.5SMC36CA, the 1.5KE36CA-T offers superior surge energy absorption in through-hole form factor, lower clamping voltage (49.9V vs. ≥52.0V), and proven robustness in high-vibration environments due to axial lead mechanical retention.
Availability
1.5KE36CA-T is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial programmable logic controllers, and telecom infrastructure equipment requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE36CA-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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in IATF 16949-certified facilities.
The 1.5KE series targets high-reliability transient suppression in automotive, industrial, and telecom applications, emphasizing rugged packaging, wide temperature operation, and AEC-Q200-aligned qualification rigor.
FAQ
What does the "CA" suffix indicate in 1.5KE36CA-T?
The "CA" suffix denotes a bidirectional TVS configuration, meaning the device provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional "A" variants that require correct polarity installation, "CA" parts eliminate orientation concerns in AC or floating circuits and are marked with type number only-no cathode band.
Can 1.5KE36CA-T replace a unidirectional 1.5KE36A-T in existing designs?
No-direct replacement is not recommended without circuit review. The 1.5KE36CA-T has identical electrical ratings but lacks polarity marking and conducts in both directions. Using it in place of a unidirectional part may cause unintended conduction in DC-biased rails, leading to leakage or latch-up. Layout and biasing must be verified for bidirectional compatibility.
Is 1.5KE36CA-T qualified to AEC-Q200?
No-this specific part is not AEC-Q200 qualified. While Diodes manufactures AEC-Q200-compliant TVS devices (e.g., in the P4SMA or SMAJ-AEC families), the 1.5KE series is intended for industrial and general-purpose use. For automotive applications requiring AEC-Q200, contact Diodes directly for qualified alternatives with PPAP documentation.
What is the significance of the "-T" suffix in the part number?
The "-T" suffix indicates tape-and-reel packaging: 1,000 pieces per 13-inch reel. This format supports automated pick-and-place assembly and ensures consistent handling, traceability, and moisture protection (MSL Level 1). Bulk-packaged versions use "-B", while "-T" is standard for high-volume SMT and through-hole production lines.
1.5KE36CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE36CA-T FAQ
1.How can I place an order for 1.5KE36CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36CA-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 1.5KE36CA-T reliable?
The price and inventory of 1.5KE36CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE36CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE36CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36CA-T?
1.5KE36CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36CA-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 1.5KE36CA-T?
For technical support, including 1.5KE36CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36CA-T requirements.
6.How does Aetrix verify that 1.5KE36CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE36CA-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 1.5KE36CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE36CA-T?
All 1.5KE36CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36CA-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 1.5KE36CA-T part is unused and in its original packaging.
Return procedure for 1.5KE36CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36CA-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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