My Inquiry
My Account
STMicroelectronics 1.5KE250CARL
- Part No.:
- 1.5KE250CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE250CARL.pdf
- Description:
- TVS DIODE 213VWM 442VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,210
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE250CARL from STMicroelectronics is a bidirectional 250 V standoff voltage transient voltage suppressor (TVS) diode in DO-201 package, rated for 1500 W peak pulse power (10/1000 µs), 442 A peak pulse current, and clamping voltage of 344 V at 5.0 A. It operates from −55 °C to +175 °C and is used to protect Ethernet PHY interfaces, industrial I/O lines, and AC/DC power input stages against IEC 61000-4-2 ESD (±30 kV contact/air) and IEC 61000-4-4 surge (4 kV level 4).
For engineers reviewing the 1.5KE250CARL datasheet, 1.5KE250CARL pinout, 1.5KE250CARL application, or 1.5KE250CARL equivalent, key selection criteria include bidirectional polarity, 250 V VRM, 344 V VCL at 5.0 A, 175 °C Tj max, and DO-201 mechanical compatibility with high-power PCB layouts requiring low thermal resistance.
Technical Context
This device uses planar junction silicon technology to achieve low leakage (<1 µA at 200 V), stable clamping over temperature (αT = 11 × 10⁻⁴/°C), and robust surge handling up to 10 kW (8/20 µs). Its bidirectional structure enables symmetrical protection without polarity sensitivity in AC-coupled signal paths.
The DO-201 package provides low thermal impedance (junction-to-ambient ~50 °C/W with 1 in² copper), supports 260 °C lead soldering, and complies with J-STD-020 MSL Level 1 and UL 497B QVGQ2.E136224 for telecom surge protection applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 250 V - Maximum continuous reverse operating voltage before breakdown |
| Breakdown Voltage (VBR) | 213–237 V at 1 mA - Confirmed avalanche initiation range for reliable triggering |
| Clamping Voltage (VCL) | 344 V at 5.0 A - Peak voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power (PPP) | 1500 W (10/1000 µs) - Sustained energy absorption capability under standard lightning surge waveform |
| Peak Pulse Current (IPP) | 442 A (10/1000 µs) - Maximum non-destructive surge current the device can shunt |
| Junction Temperature Range | −55 °C to +175 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor power supplies |
| ESD Rating | ±30 kV (IEC 61000-4-2, contact & air) - Full compliance with highest industrial ESD immunity level |
Pinout & Package
1.5KE250CARL is housed in a DO-201 axial-leaded package with two terminals: anode and cathode. As a bidirectional TVS, both terminals are functionally symmetric; no polarity marking is required for circuit operation, though physical orientation follows standard DO-201 cathode band convention (not electrically significant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Surge return path (bidirectional) | Provides low-impedance path to ground or reference rail during either polarity transient |
| Cathode (K) | Surge return path (bidirectional) | Electrically identical to anode in CA-type devices; terminal symmetry enables flexible PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional surge suppression | Enables single-device protection of AC signals, differential buses, and floating inputs without polarity constraints |
| 175 °C maximum junction temperature | Supports operation in high-ambient environments such as enclosed power converters and motor control enclosures |
| Low dynamic resistance (RD = 7.78 Ω) | Minimizes clamping voltage rise under high-current transients, improving downstream component safety margin |
| UL 497B certification (QVGQ2.E136224) | Validates suitability for primary-side telecom and industrial surge protection per UL safety standards |
| IEC 61000-4-4 level 4 compliance (4 kV) | Guarantees robustness against fast-rising repetitive surges in industrial power distribution systems |
Applications
| Industrial PLC Analog Input Modules | AC/DC Power Supply Input Stage |
|---|---|
Use Scenario: Protecting 4–20 mA current loop inputs from induced surges on factory floor wiring. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp common-mode transients before signal conditioning amplifiers. Use Value: Prevents amplifier saturation and ADC damage during 4 kV IEC 61000-4-4 surges while maintaining <1 µA leakage at 250 V system bias. | Use Scenario: Safeguarding bridge rectifier inputs against lightning-induced line surges in DIN-rail mounted SMPS. IC Role / Device Role / Timing Role: Primary-level TVS connected between L/N and PE to divert 10/1000 µs surges before bulk capacitor and controller IC. Use Value: Absorbs 1500 W pulses without degradation, enabling compliance with EN 61000-4-5 Class III requirements. |
| Telecom DSL Line Interface | Automotive Body Control Module (BCM) LIN Bus |
Use Scenario: Shielding ADSL/VDSL line drivers from longitudinal surges coupled from external telephone lines. IC Role / Device Role / Timing Role: Bidirectional TVS bridging tip/ring pair to limit differential-mode transients below transceiver withstand rating. Use Value: Maintains signal integrity with <1 pF junction capacitance at 0 V, avoiding data rate degradation on 30 MHz DSL links. | Use Scenario: Protecting LIN bus transceivers from battery dump and load-dump events in vehicle door modules. IC Role / Device Role / Timing Role: TVS placed between LIN line and chassis ground to clamp negative-going spikes up to −200 V. Use Value: Survives repeated 100 A, 40 ms load-dump pulses at 175 °C ambient due to high Tj max and low thermal resistance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250CA | Lower PPP (600 W), smaller SMB package, 356 V VCL at 4.2 A | Targeted for space-constrained consumer electronics; insufficient for 1500 W industrial surges | Select only when board area is critical and surge energy is ≤600 W |
| 1.5SMC250CA | Same 1500 W rating but SMC package (surface-mount), 344 V VCL at 4.4 A | Requires rework for through-hole replacement; better thermal performance on dense PCBs | Prefer for new SMT designs needing same electrical specs with improved manufacturability |
Compared with SMBJ250CA and 1.5SMC250CA, 1.5KE250CARL delivers identical clamping performance (344 V) and higher surge margin in axial-leaded form, making it optimal for legacy through-hole power entry designs where mechanical robustness and high-current trace routing are prioritized.
Availability
1.5KE250CARL is available at Aetrix Electronics and suitable for industrial PLC analog input modules, AC/DC power supply input stages, and telecom DSL line interfaces requiring stable component supply, long-term lifecycle support, and UL-certified surge protection.
Supply support for 1.5KE250CARL 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and protection components for industrial, automotive, and consumer markets.
The 1.5KE series belongs to ST's high-power discrete TVS portfolio, engineered specifically for robust front-end surge protection in harsh environments where reliability under repeated 1500 W transients and extended temperature operation are mandatory.
FAQ
What does the 'CA' suffix indicate in 1.5KE250CARL?
The 'CA' suffix denotes a bidirectional configuration, meaning the device provides symmetrical clamping for both positive and negative transients across its terminals. Unlike unidirectional 'A' types, it has no inherent anode/cathode polarity and is ideal for AC signal lines, differential buses, and floating inputs where surge direction is unpredictable.
How does 1.5KE250CARL differ from 1.5KE250A?
1.5KE250A is unidirectional and must be installed with correct polarity-cathode tied to the protected line, anode to ground-to conduct during positive surges. 1.5KE250CARL clamps equally in both directions, eliminating polarity concerns and simplifying layout for AC-coupled or differential applications like telecom lines or LIN bus.
Can 1.5KE250CARL be used in parallel for higher surge current handling?
No-parallel connection of TVS diodes is not recommended due to mismatched VBR tolerances causing current imbalance and premature failure. For higher current capability, select a single higher-rated device (e.g., 3KP250CA) or implement staged protection with upstream MOVs and downstream TVS.
Is the DO-201 package RoHS-compliant and lead-free?
Yes-1.5KE250CARL uses matte tin-plated leads and meets RoHS Directive 2011/65/EU. It is qualified to J-STD-002 and JESD 22-B102 E3 for solderability, and passes JESD-201 Class 2 whisker testing, ensuring reliability in lead-free reflow processes up to 260 °C.
1.5KE250CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 213V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 442V
- Current - Peak Pulse (10/1000µs):
- 23A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 280pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE250CARL FAQ
1.How can I place an order for 1.5KE250CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE250CARL 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 1.5KE250CARL reliable?
The price and inventory of 1.5KE250CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE250CARL is usually 5 days.
3.What payment methods are accepted for 1.5KE250CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE250CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE250CARL?
1.5KE250CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE250CARL 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 1.5KE250CARL?
For technical support, including 1.5KE250CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE250CARL requirements.
6.How does Aetrix verify that 1.5KE250CARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE250CARL 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 1.5KE250CARL meets industry standards.
7.What is the process for return or replacement of 1.5KE250CARL?
All 1.5KE250CARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE250CARL, 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 1.5KE250CARL part is unused and in its original packaging.
Return procedure for 1.5KE250CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE250CARL 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…
