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Taiwan Semiconductor Corporation 1.5KE36CA B0G
- Part No.:
- 1.5KE36CA B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE36CA B0G.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,428
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Product details
Overview
1.5KE36CA B0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 36V, working stand-off voltage 29.1V, clamping voltage 52.0V at 30A peak pulse current, and fast response time <5.0ns - used for ESD and surge protection of automotive power rails and industrial I/O interfaces.
For engineers reviewing the 1.5KE36CA B0G datasheet, 1.5KE36CA B0G pinout, 1.5KE36CA B0G application, or 1.5KE36CA B0G equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, low dynamic impedance, AEC-Q101 qualification status, and DO-201 mechanical compatibility with high-reliability PCB layouts.
Technical Context
The 1.5KE36CA B0G is a bipolar junction TVS diode designed for symmetric transient suppression in both polarities. It operates with a minimum breakdown voltage of 32.4V and maximum of 39.6V at 1.0mA test current, delivering 52.0V clamping voltage at 30A peak impulse current under 10/1000μs waveform.
Its thermal design supports junction temperatures from –55°C to +175°C, with steady-state power dissipation of 5W at 75°C lead temperature on 16mm × 16mm copper pad. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 32.4V / 39.6V - defines guaranteed conduction onset range under 1.0mA DC test, critical for margin-based overvoltage threshold setting |
| VWM | 29.1V - maximum continuous reverse operating voltage before leakage exceeds 1μA, sets safe system rail margin |
| VC@IPP | 52.0V at 30A - clamped voltage during 10/1000μs surge, determines protected circuit's maximum transient stress level |
| PPK | 1500W - peak pulse power handling per single non-repetitive event, enables robust protection against load dump or inductive kick |
| Response Time | <5.0ns - time from 0V to VBR in bidirectional mode, ensures suppression before sensitive ICs experience overstress |
| TJ Range | –55°C to +175°C - extended junction temperature rating supports under-hood automotive and industrial ambient conditions |
| Leakage @ VWM | <1μA - ultra-low blocking current minimizes standby power loss and avoids false triggering in high-impedance nodes |
Pinout & Package
Package: DO-201 axial-leaded through-hole package with cathode band marking for unidirectional variants; 1.5KE36CA B0G is bidirectional and marked with part-specific code (no polarity band). Weight: 0.090g. Molding compound meets UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts reverse surge energy during negative transients; symmetrical with cathode for bidirectional operation |
| Cathode | Transient current entry (positive polarity) | Accepts forward surge energy during positive transients; electrically identical to anode in CA-series devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPP performance in both directions - eliminates need for polarity-aware layout or orientation checks |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for engine control, body electronics, and ADAS power domains |
| ISO 7637-2 compliance | Tested against Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery feed interruption), and Pulse 3a/3b (switching noise) - meets OEM-level EMC immunity requirements |
| Low dynamic impedance | Enables tight clamping window (VC – VBR ≈ 12.4V) - reduces voltage overshoot across protected ICs during fast transients |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive - supports green manufacturing and end-of-life recycling mandates |
Applications
| Automotive Power Rail Protection | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load dump (ISO 7637-2 Pulse 5a/b) and alternator switching transients. IC Role / Device Role / Timing Role: Primary bidirectional clamping element placed at power entry point, absorbing up to 1500W surges within nanoseconds. Use Value: Limits rail voltage to ≤52.0V during 30A transients, preventing damage to downstream PMICs, microcontrollers, and CAN transceivers. | Use Scenario: Safeguarding 24V digital input modules in programmable logic controllers against field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Front-end transient suppressor on each channel, rated for repeated 10/1000μs surges without degradation. Use Value: Maintains signal integrity by clamping transients before they reach optocouplers or level-shifting buffers, reducing false triggers and latch-up risk. |
| LED Driver Overvoltage Protection | Telecom Line Interface Protection |
Use Scenario: Shielding constant-current LED drivers in streetlight systems from lightning-induced surges on AC mains or DC bus lines. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output or input, conducting only during overvoltage events exceeding 29.1V. Use Value: Prevents catastrophic failure of MOSFETs and current-sense amplifiers by limiting transient voltage to 52.0V while sustaining 1500W peak power. | Use Scenario: Providing secondary-level surge protection on low-voltage telecom interface cards (e.g., RS-485, FXS) exposed to induced surges. IC Role / Device Role / Timing Role: Secondary clamp after gas discharge tube (GDT) or polymer PTC, handling residual energy with precise voltage limiting. Use Value: Ensures interoperability with TIA/EIA-485 receivers by holding line differential voltage within ±52.0V during fast transients, preserving data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ36CA | Same DO-214AC (SMA) package; lower PPK = 400W; VC = 58.1V @ 6.9A - higher clamping voltage, lower surge capacity | Not AEC-Q101 qualified; lacks ISO 7637-2 certification - limited to commercial-grade consumer or industrial equipment | Select when space-constrained SMT layout is required and surge threat level is moderate (e.g., indoor embedded systems). |
| ON Semiconductor 1.5SMC36CA | DO-214AB (SMC) package; PPK = 1500W; VC = 58.1V @ 25.8A - same power rating but 11.7% higher clamping voltage than 1.5KE36CA B0G | RoHS compliant but not AEC-Q101 qualified; no ISO 7637-2 documentation - suitable for non-automotive industrial use only | Choose when DO-214AB footprint is standardized in existing designs and AEC-Q101 is not mandated. |
Compared with SMAJ36CA and 1.5SMC36CA, the 1.5KE36CA B0G delivers superior protection margin via lower 52.0V clamping voltage and certified AEC-Q101/ISO 7637-2 compliance - making it the preferred choice for automotive power domain hardening where voltage headroom and regulatory validation are critical.
Availability
1.5KE36CA B0G is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O hardening, LED driver overvoltage suppression, and telecom line interface safeguarding requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5KE36CA B0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components with global distribution and AEC-Q101 validation capability.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and transportation systems where reliability under ISO 7637-2 and wide temperature operation are mandatory.
FAQ
What does the 'CA' suffix indicate in 1.5KE36CA B0G?
The 'CA' suffix in 1.5KE36CA B0G denotes bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional 'A' variants, 1.5KE36CA B0G has identical breakdown and clamping characteristics for positive and negative transients, eliminating polarity-dependent placement constraints during PCB assembly.
Is 1.5KE36CA B0G qualified for automotive applications?
Yes, 1.5KE36CA B0G is AEC-Q101 qualified and explicitly tested to ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b standards. Its –55°C to +175°C junction temperature range, JESD201 Class 2 whisker resistance, and UL 94V-0 molding compound confirm suitability for under-hood and chassis-mounted automotive electronics where environmental stress is extreme.
What is the maximum clamping voltage of 1.5KE36CA B0G and at what current is it specified?
The maximum clamping voltage of 1.5KE36CA B0G is 52.0V, measured at a peak pulse current (IPP) of 30A under the standard 10/1000μs double-exponential waveform. This value represents the upper limit of voltage seen by protected circuitry during worst-case surge events, directly informing system-level overvoltage tolerance design.
How does the DO-201 package of 1.5KE36CA B0G affect thermal performance?
The DO-201 axial-leaded package of 1.5KE36CA B0G delivers 5W steady-state power dissipation at 75°C lead temperature when mounted on a 16mm × 16mm copper pad. Its thermal resistance from junction-to-lead is optimized for through-hole reliability, supporting high-energy transient absorption without derating in compact industrial or automotive board layouts.
Can 1.5KE36CA B0G replace unidirectional TVS diodes in existing designs?
No - 1.5KE36CA B0G is strictly bidirectional and cannot substitute for unidirectional TVS diodes like 1.5KE36A without circuit review. Unidirectional parts conduct only during reverse-biased surges and block forward current; using 1.5KE36CA B0G in such positions may cause unintended conduction during normal forward bias, risking system malfunction or power rail collapse.
1.5KE36CA B0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- 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):
- 31A
- 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 B0G FAQ
1.How can I place an order for 1.5KE36CA B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36CA B0G 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 B0G reliable?
The price and inventory of 1.5KE36CA B0G 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 B0G is usually 5 days.
3.What payment methods are accepted for 1.5KE36CA B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36CA B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36CA B0G?
1.5KE36CA B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36CA B0G 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 B0G?
For technical support, including 1.5KE36CA B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36CA B0G requirements.
6.How does Aetrix verify that 1.5KE36CA B0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE36CA B0G 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 B0G meets industry standards.
7.What is the process for return or replacement of 1.5KE36CA B0G?
All 1.5KE36CA B0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36CA B0G, 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 B0G part is unused and in its original packaging.
Return procedure for 1.5KE36CA B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36CA B0G Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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