My Inquiry
My Account
Taiwan Semiconductor Corporation 1V5KE11CA
- Part No.:
- 1V5KE11CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE11CA.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,799
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1V5KE11CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with breakdown voltage 10.5–11.6 V at 1 mA test current, reverse stand-off voltage 9.40 V, clamping voltage 15.6 V at 96.2 A peak pulse current, and operating junction temperature range −55 °C to +175 °C. It protects power rails and signal lines against ESD, EFT, and inductive switching transients in industrial power supplies and automotive control modules.
For engineers reviewing the 1V5KE11CA datasheet, 1V5KE11CA pinout, 1V5KE11CA application, or 1V5KE11CA equivalent, key selection criteria include bidirectional clamping behavior, 15.6 V max clamping at 96.2 A, 9.40 V VRWM, DO-201 mechanical compatibility, and compliance with IEC 61000-4-2/4-4 immunity standards.
Technical Context
The 1V5KE11CA is a unidirectional/bidirectional avalanche diode designed for parallel-connected overvoltage protection. Its glass-passivated junction enables low incremental surge resistance and fast response time (<1 ns), while maintaining <1 µA reverse leakage above 10 V. The device operates symmetrically in both directions due to its CA suffix designation.
It meets JEDEC JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements. With 1500 W peak pulse power at 1 ms (10/1000 µs waveform), it sustains repetitive surges without degradation when operated within derated ambient temperature limits up to 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 10.5 V / 11.6 V at IT = 1 mA - defines guaranteed avalanche conduction onset window |
| VRWM | 9.40 V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 15.6 V at 96.2 A - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs transient waveform |
| IR @ VRWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ range | −55 °C to +175 °C - supports operation in under-hood automotive and industrial motor drive environments |
Pinout & Package
Package: DO-201 axial-leaded through-hole package with cathode band marking for unidirectional variants; bidirectional 1V5KE11CA has no polarity marking and functions identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; common node in bidirectional configuration | Connected to protected line or ground reference depending on layout; symmetrical terminal for CA-type TVS |
| Cathode | Current exit point in forward bias; common node in bidirectional configuration | Electrically identical to anode in 1V5KE11CA - no functional distinction; terminals interchangeable |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable avalanche characteristics and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (1 ms) | Handles high-energy transients such as ISO 7637-2 Pulse 1/2a/5a without failure |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage exposure to downstream ICs during clamping event |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with environmental regulations for industrial and automotive PCB assembly |
Applications
| Automotive Power Line Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed across power rail upstream of DC-DC converter input. Use Value: Limits voltage excursion to ≤15.6 V during 96.2 A surge, preventing damage to 16 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding 24 V digital input modules against field-wiring induced surges and EFT bursts. IC Role / Device Role / Timing Role: Parallel-connected TVS at terminal block interface, before optocoupler input stage. Use Value: Clamps 4 kV EFT pulses to safe levels within nanoseconds, preserving signal integrity and logic state fidelity. |
| LED Driver Overvoltage Suppression | RS-485 Transceiver Port Protection |
Use Scenario: Preventing catastrophic failure of constant-current LED drivers due to inductive kickback from relay coils. IC Role / Device Role / Timing Role: Mounted across driver output terminals to absorb energy from switched inductive loads. Use Value: Dissipates 1500 W surge energy without thermal runaway, enabling robust operation in streetlight and signage systems. | Use Scenario: Shielding half-duplex RS-485 transceivers (e.g., MAX1487) from cable-induced lightning surges and hot-plug transients. IC Role / Device Role / Timing Role: Placed between A/B differential lines and ground, forming low-impedance path for common-mode surges. Use Value: Maintains <1 µA leakage at 9.4 V, avoiding false triggering while clamping ±15.6 V surges to protect PHY layer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA (Bourns) | Same DO-214AA (SMB) package; 11.1 V VRWM, 17.0 V VC @ 84.5 A; lower PPPM (600 W) | Surface-mount only; unsuitable for through-hole legacy designs or high-surge industrial environments | Select when board space is constrained and surge energy does not exceed 600 W |
| P6KE11CA (Littelfuse) | DO-204AC (DO-15) package; identical VBR (10.5–11.6 V), same 1500 W rating, but higher VC (16.0 V) | Compatible footprint for retrofits; slightly higher clamping increases stress on protected ICs | Choose for drop-in replacement where existing DO-15 layout exists and 0.4 V higher clamping is acceptable |
Compared with SMBJ11CA and P6KE11CA, the 1V5KE11CA offers optimal balance of high surge capacity (1500 W), low clamping voltage (15.6 V), and axial DO-201 mechanical robustness-making it preferred for high-reliability through-hole power rail protection where thermal mass and lead inductance matter.
Availability
1V5KE11CA is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, and LED lighting drivers requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE11CA 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and consumer markets since 1979.
The 1V5KE series is part of TSC's high-power TVS portfolio engineered specifically for robust transient immunity in harsh electromagnetic environments-emphasizing low clamping ratio, repeatable surge endurance, and extended temperature operation.
FAQ
What is the maximum clamping voltage of the 1V5KE11CA under rated surge conditions?
The 1V5KE11CA exhibits a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current of 96.2 A using the standard 10/1000 µs waveform. This value is measured at the device terminals and represents the upper voltage limit imposed on the protected circuit during transient events, ensuring downstream components remain within safe operating limits.
Is the 1V5KE11CA unidirectional or bidirectional, and how is polarity identified?
The 1V5KE11CA is a bidirectional TVS diode, indicated by the "CA" suffix. Unlike unidirectional variants, it has no cathode band marking and functions identically regardless of orientation. Its electrical characteristics-including VBR, VRWM, and VC-apply symmetrically in both directions, making it ideal for AC-coupled or floating-line protection schemes.
What package type does the 1V5KE11CA use, and what are its mechanical highlights?
The 1V5KE11CA uses the DO-201 axial-leaded package with tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Its molding compound meets UL 94V-0 flammability rating, and typical unit weight is 0.090 g. The DO-201 form factor provides superior thermal mass and mechanical strength compared to smaller surface-mount packages.
Does the 1V5KE11CA meet RoHS and halogen-free requirements?
Yes, the 1V5KE11CA is RoHS compliant and halogen-free per IEC 61249-2-21. These certifications are confirmed in the official Taiwan Semiconductor datasheet (Version D2112) and apply to all units manufactured under current production lots, supporting environmentally regulated industrial and automotive deployments.
How does the 1V5KE11CA perform under elevated ambient temperatures?
The 1V5KE11CA maintains full 1500 W surge capability at 25 °C, with linear derating beginning at 75 °C ambient. At 125 °C, its peak pulse power drops to approximately 50% (750 W), and it remains functional up to 175 °C junction temperature. Derating curves are documented in Figure 2 of the Taiwan Semiconductor datasheet for precise thermal design margining.
1V5KE11CA 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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
1V5KE11CA FAQ
1.How can I place an order for 1V5KE11CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE11CA 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 1V5KE11CA reliable?
The price and inventory of 1V5KE11CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE11CA is usually 5 days.
3.What payment methods are accepted for 1V5KE11CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE11CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE11CA?
1V5KE11CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE11CA 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 1V5KE11CA?
For technical support, including 1V5KE11CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE11CA requirements.
6.How does Aetrix verify that 1V5KE11CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE11CA 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 1V5KE11CA meets industry standards.
7.What is the process for return or replacement of 1V5KE11CA?
All 1V5KE11CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE11CA, 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 1V5KE11CA part is unused and in its original packaging.
Return procedure for 1V5KE11CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1V5KE11CA Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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…
