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Taiwan Semiconductor Corporation 1V5KE39CA
- Part No.:
- 1V5KE39CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE39CA.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:943
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Product details
Overview
1V5KE39CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with a breakdown voltage of 37.1–41.0 V at 1 mA test current, clamping voltage of 53.9 V at 28.0 A peak pulse current, and reverse stand-off voltage of 33.3 V. It protects power rails and I/O lines against ESD, EFT, and inductive switching transients in industrial power supplies and automotive control modules.
For engineers reviewing the 1V5KE39CA datasheet, 1V5KE39CA pinout, 1V5KE39CA application, or 1V5KE39CA equivalent, key selection criteria include bidirectional clamping performance, 1500W 1ms pulse rating, DO-201 mechanical compatibility, junction temperature range (−55°C to +175°C), and compliance with RoHS and halogen-free standards per IEC 61249-2-21.
Technical Context
The 1V5KE39CA operates as a silicon avalanche diode designed for unidirectional or bidirectional transient suppression. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, enabling consistent clamping under repetitive 10/1000 µs surge waveforms.
It exhibits fast response time (<1 ns), typical reverse leakage <1 µA above 10 V, and meets JEDEC JESD201 Class 2 whisker resistance. The device is rated for 200 A peak forward surge current (8.3 ms half-sine) in unidirectional mode and supports bipolar operation without polarity sensitivity due to symmetrical VBR characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V at IT = 1 mA - defines guaranteed avalanche conduction onset across production lot |
| VRWM | 33.3 V - maximum continuous reverse operating voltage before significant leakage |
| VC @ IPPM | 53.9 V at 28.0 A - clamped voltage during 1500W 1ms transient, critical for downstream IC survivability |
| PPPM | 1500 W - peak pulse power handling per 1ms waveform, defining surge energy absorption capacity |
| TJ Range | −55°C to +175°C - enables deployment in under-hood automotive and industrial motor drive environments |
| IR @ VRWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
Package: DO-201 axial lead package with pure tin-plated leads, UL 94V-0 molding compound, and cathode band marking for unidirectional variants; bidirectional 1V5KE39CA has no polarity marking and symmetrical terminal function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient return path (bidirectional) | Connected to system ground or common reference; conducts during negative transients |
| Cathode (Lead 2) | Transient return path (bidirectional) | Connected to protected line; conducts during positive transients - identical role to Anode in CA variant |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche breakdown and long-term reliability under thermal cycling |
| 1500W 1ms peak pulse rating | Supports IEC 61000-4-5 Level 4 (4kV) surge immunity without derating in standard layouts |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD >15 kV), improving protection margin |
| RoHS & halogen-free compliance | Fulfills IPC-J-STD-609 and EU Directive 2011/65/EU requirements for green manufacturing |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Suppresses inductive kickback from relay coils and solenoid drivers on 24 V DC control buses. IC Role / Device Role: Bidirectional TVS placed across relay coil terminals to clamp both polarity transients. Use Value: Prevents latch-up or permanent damage to microcontroller GPIOs and driver ICs by limiting voltage to ≤53.9 V during 28 A surges. | Use Scenario: Protects LIN bus transceivers and sensor inputs from battery dump and load-dump events. IC Role / Device Role: Standoff protection on 12 V supply rail and bidirectional data lines. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 5a (75 V/350 ms) by holding rail voltage below 53.9 V at peak current. |
| LED Streetlight Power Supplies | Programmable Logic Controller I/O Cards |
Use Scenario: Shields AC-DC primary-side rectifier outputs and secondary-side DC bus from lightning-induced surges. IC Role / Device Role: Parallel-connected TVS across bulk capacitor to absorb line-to-ground transients. Use Value: Enables compliance with IEC 61000-4-5 (10/700 µs, 2 kV) without additional MOV staging or snubbers. | Use Scenario: Guards digital input channels against ESD and EFT in factory automation systems. IC Role / Device Role: Input-stage protection on optocoupler or Schmitt-trigger interfaces. Use Value: Limits transient voltage to safe levels (<54 V) for 3.3 V/5 V logic ICs while maintaining <1 µA leakage at 33.3 V standoff. |
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 | Lower PPPM (600 W), smaller SMB package (surface-mount), VBR = 40.0–44.2 V, VC = 58.1 V @ 10.3 A | Not suitable for 1500W surge events; requires PCB layout change to SMT footprint | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1N6285A | Same manufacturer, identical DO-201 package and electrical specs - unidirectional variant of 1V5KE39CA | Lacks bidirectional symmetry; requires correct polarity orientation during placement | Choose only if circuit topology mandates unidirectional clamping (e.g., DC-biased rails) |
Compared with SMBJ36CA and 1N6285A, the 1V5KE39CA delivers higher surge robustness in through-hole form factor and true bidirectional protection without polarity dependency-making it optimal for legacy industrial designs and high-energy transient environments where layout flexibility and reliability are prioritized over miniaturization.
Availability
1V5KE39CA is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, LED streetlight power supplies, and programmable logic controller I/O cards requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE39CA 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, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 qualified product lines.
The 1V5KE series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, automotive subsystems, and outdoor lighting where reliability under repeated surge stress is critical.
FAQ
What is the clamping voltage of the 1V5KE39CA under maximum rated surge current?
The 1V5KE39CA has a maximum clamping voltage (VC) of 53.9 V at 28.0 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and guarantees that downstream components see no more than 53.9 V during a full 1500W transient event. The 1V5KE39CA's low incremental resistance contributes to this tightly controlled clamping performance.
Is the 1V5KE39CA suitable for bidirectional signal line protection?
Yes, the 1V5KE39CA is explicitly designed for bidirectional operation, as indicated by the "CA" suffix and confirmed in TSC's datasheet Section 2 ("Devices for Bipolar Applications"). Its symmetrical breakdown voltage (37.1–41.0 V in both directions) and absence of polarity marking make it ideal for protecting AC-coupled or floating signal paths such as RS-485, CAN, or analog sensor inputs where voltage transients may occur with either polarity.
What is the maximum junction temperature rating for the 1V5KE39CA?
The 1V5KE39CA has a maximum junction temperature (TJ) rating of +175°C and a minimum of −55°C, per Absolute Maximum Ratings table. This wide thermal range allows reliable operation in under-hood automotive locations, industrial enclosures without active cooling, and high-ambient lighting fixtures. Derating curves in the datasheet confirm usable power dissipation up to 125°C ambient with appropriate lead length.
Does the 1V5KE39CA meet RoHS and halogen-free requirements?
Yes, the 1V5KE39CA is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and the pure tin-plated leads comply with J-STD-002 solderability standards. These certifications are documented in the Mechanical Data and Ordering Information sections of the official TSC datasheet (Version D2112).
How does the 1V5KE39CA compare to the unidirectional 1N6285A variant?
The 1V5KE39CA and 1N6285A share identical electrical parameters (VBR, VRWM, VC, PPPM) and DO-201 packaging, but differ in polarity configuration: 1V5KE39CA is bidirectional (no cathode band), while 1N6285A is unidirectional (cathode band marked). This makes the 1V5KE39CA easier to place and more tolerant of layout errors, whereas 1N6285A requires strict orientation alignment on PCBs with DC bias.
1V5KE39CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 28A
- 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-201AD
1V5KE39CA FAQ
1.How can I place an order for 1V5KE39CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE39CA 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 1V5KE39CA reliable?
The price and inventory of 1V5KE39CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE39CA is usually 5 days.
3.What payment methods are accepted for 1V5KE39CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE39CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE39CA?
1V5KE39CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE39CA 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 1V5KE39CA?
For technical support, including 1V5KE39CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE39CA requirements.
6.How does Aetrix verify that 1V5KE39CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE39CA 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 1V5KE39CA meets industry standards.
7.What is the process for return or replacement of 1V5KE39CA?
All 1V5KE39CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE39CA, 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 1V5KE39CA part is unused and in its original packaging.
Return procedure for 1V5KE39CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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