My Inquiry
My Account
Diodes Incorporated 1.5KE8V2CA-T
- Part No.:
- 1.5KE8V2CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8V2CA-T.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:6,665
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE8V2CA-T from Diodes Incorporated is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge protection in DC power lines and signal interfaces. It delivers 1500W peak pulse power dissipation at 1.0ms, clamps transients to ≤12.1V at 124A peak pulse current, and maintains reverse standoff voltage of 7.02V with ±5% tolerance - deployed in automotive body control modules and industrial I/O protection circuits.
For engineers reviewing the 1.5KE8V2CA-T datasheet, 1.5KE8V2CA-T pinout, 1.5KE8V2CA-T application, or 1.5KE8V2CA-T equivalent, key selection criteria include clamping voltage (VC = 12.1V), peak pulse current (IPP = 124A), temperature coefficient of breakdown voltage (+0.065%/°C), bidirectional polarity, and DO-201 axial-leaded mechanical compatibility.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust ESD and lightning surge suppression without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<200μA at VR = 7.02V), while fast response time (<1.0ps) limits voltage overshoot during sub-nanosecond transients.
The device sustains 5.0W steady-state power at TL = 75°C with 9.5mm lead length and exhibits a tight breakdown voltage range (7.79V min to 8.61V max at IT = 10mA), supporting precise overvoltage thresholding in safety-critical 12V automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms - handles high-energy surges per IEC 61000-4-5 Level 4 (4kV/2Ω) |
| Reverse Standoff Voltage | 7.02V - maximum continuous DC operating voltage before clamping initiates |
| Breakdown Voltage | 7.79V–8.61V @ 10mA - defines precise clamping onset window for reliable overvoltage detection |
| Clamping Voltage | 12.1V @ 124A - limits protected circuit voltage during worst-case surge event |
| Peak Pulse Current | 124A - supports surge immunity up to 100A+ in 8/20μs waveform applications |
| Leakage Current | ≤200μA @ 7.02V - minimizes standby power loss and avoids false triggering in low-current systems |
| Temp. Coefficient | +0.065%/°C - enables predictable VBR drift over -55°C to +175°C operating range |
Pinout & Package
Package: DO-201 axial-leaded epoxy molded case (UL 94V-0 rated), 25.4mm overall length, 8.5–9.53mm body diameter, 4.8–5.21mm lead spacing, 1.12g weight. Leads are tin-finished, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry under negative transient | One end of symmetrical junction - no cathode marking; bidirectional conduction path |
| Cathode | Current entry under positive transient | Other end of symmetrical junction - identical physical terminal; polarity irrelevant in CA variant |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures long-term stability of breakdown voltage and leakage performance under thermal cycling |
| Bidirectional configuration | Eliminates need for polarity-aware layout; protects AC-coupled or floating signal lines |
| 1500W peak pulse rating | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive front-end circuits |
| RoHS-compliant & halogen-free | Complies with EU Directive 2015/863/EU and automotive "Green" material specifications |
| −55°C to +175°C operation | Supports under-hood automotive deployment and high-temp industrial environments |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIOs and CAN transceiver power rails from load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V supply rail feeding MCU and interface ICs. Use Value: Limits rail voltage to ≤12.1V during 120A/100ms load dump events, preventing latch-up or permanent damage. |
Use Scenario: Shields 24V digital input channels from field-wiring induced transients in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient absorber before optocoupler or Schmitt-trigger input stage. Use Value: Clamps 1kV/500A surge (IEC 61000-4-5) to safe levels within <1ns, preserving input logic integrity. |
| DC Power Supply Output | RS-485 Communication Line |
Use Scenario: Safeguards regulated 5V/3.3V outputs of DC-DC converters against backfeed surges from connected loads. IC Role / Device Role / Timing Role: Secondary-level surge suppressor downstream of bulk filtering. Use Value: Absorbs 1500W pulses without degradation, maintaining output regulation during repeated surge events. |
Use Scenario: Installed across differential A/B lines of RS-485 transceivers in noisy motor drive environments. IC Role / Device Role / Timing Role: Common-mode and differential-mode transient limiter for half-duplex bus nodes. Use Value: Symmetric clamping prevents data corruption during 4kV EFT bursts while preserving signal swing margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Lower peak power (600W), smaller SMB package (surface-mount), lower clamping voltage (12.0V) | Preferred for space-constrained PCBs; unsuitable for >100A surge duty cycles | Select when board area is critical and surge energy is ≤600W; verify thermal derating in reflow profile |
| 1.5SMC8.2CA | Same 1500W rating but SMC package (surface-mount), slightly higher clamping (12.3V), tighter VBR tolerance (±5% vs ±6.5%) | Used in automated SMT production; requires different footprint and reflow profile | Choose for high-volume SMT assembly where DO-201 through-hole is not feasible |
Compared with 1.5KE8V2CA-T, SMBJ8.0CA trades surge capacity for compactness, while 1.5SMC8.2CA retains full power rating but shifts to surface-mount implementation - both require mechanical and thermal redesign, not drop-in replacement.
Availability
1.5KE8V2CA-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and DC power supply output safeguarding requiring stable component supply across extended product lifecycles.
Supply support for 1.5KE8V2CA-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, specializing in high-reliability protection, power management, and signal integrity solutions for automotive and industrial markets.
The 1.5KE series targets high-energy transient suppression in harsh environments, with design focus on automotive-grade surge resilience, wide temperature operation, and compliance with AEC-Q101 stress testing requirements.
FAQ
What is the difference between 1.5KE8V2A and 1.5KE8V2CA-T?
The "A" suffix denotes unidirectional operation with cathode band marking; "CA" indicates bidirectional symmetry with no polarity marking. Both share identical electrical specs (VRWM = 7.02V, VC = 12.1V), but 1.5KE8V2CA-T must be used where AC or reversible transients occur - such as RS-485 lines or transformer-coupled interfaces - without requiring orientation during placement.
Can 1.5KE8V2CA-T replace 1.5KE8.2CA in existing designs?
Yes, 1.5KE8V2CA-T and 1.5KE8.2CA are functionally identical part numbers - "8V2" is the standard JEDEC designation for 8.2V-rated devices, and "8.2" is an alternate notation. Both refer to the same bidirectional TVS with VRWM = 7.02V, VBR = 7.79–8.61V, and VC = 12.1V. No design change is required.
Is 1.5KE8V2CA-T qualified to AEC-Q101?
No - while Diodes' 1.5KE series is constructed using AEC-Q101-compatible processes and materials, this specific part number (1.5KE8V2CA-T) is not individually listed in Diodes' AEC-Q101 qualification summary. For automotive safety-critical use, consult Diodes' AEC-Q101 qualified equivalents such as P4SMA8.2CA or SMAJ8.0CA.
What is the maximum allowable mounting torque for DO-201 leads?
DO-201 axial leads are not rated for mechanical torque during mounting; they are intended for axial insertion and soldering only. Excessive bending or twisting (>0.5 N·m) risks internal wire bond fracture or die cracking. Maintain ≥5mm lead length beyond PCB for strain relief and avoid board flexure near the device body.
1.5KE8V2CA-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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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
1.5KE8V2CA-T FAQ
1.How can I place an order for 1.5KE8V2CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8V2CA-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 1.5KE8V2CA-T reliable?
The price and inventory of 1.5KE8V2CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8V2CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE8V2CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8V2CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8V2CA-T?
1.5KE8V2CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8V2CA-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 1.5KE8V2CA-T?
For technical support, including 1.5KE8V2CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8V2CA-T requirements.
6.How does Aetrix verify that 1.5KE8V2CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE8V2CA-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 1.5KE8V2CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE8V2CA-T?
All 1.5KE8V2CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8V2CA-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 1.5KE8V2CA-T part is unused and in its original packaging.
Return procedure for 1.5KE8V2CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8V2CA-T 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
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
