My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5SMC24CH
- Part No.:
- 1.5SMC24CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC24CH.pdf
- Description:
- 1500W, 24V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:6,444
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC24CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 21.6–26.4V breakdown voltage (VBR), and 19.4V working stand-off voltage (VWM). It clamps transients to ≤34.7V at 45A peak impulse current and meets AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1.5SMC24CH datasheet, 1.5SMC24CH pinout, 1.5SMC24CH application, or 1.5SMC24CH equivalent, this device serves as a robust ESD and surge protection solution for bidirectional signal lines in automotive infotainment, industrial I/O, and telecom interfaces where fast response (<1.0ps), low leakage (<1µA @ VWM), and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance are required.
Technical Context
The 1.5SMC24CH is a unidirectional/bidirectional TVS diode with glass-passivated junction and symmetrical clamping behavior in both polarities due to its CH suffix designation. Its thermal design supports 150°C maximum junction temperature and leverages DO-214AB's low RθJC of 15°C/W for effective transient energy dissipation.
It operates across –55°C to +150°C ambient range, exhibits <0.094%/°C temperature coefficient of VBR, and maintains <1µA blocking leakage at 19.4V - enabling stable protection in high-impedance analog and digital signal paths without loading effects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 21.6V / 26.4V - defines reliable avalanche initiation window under 1mA test current; ensures consistent turn-on across temperature and unit variation |
| VWM | 19.4V - maximum continuous reverse operating voltage before significant leakage; sets safe margin below VBR for system-level signal integrity |
| VC @ IPPM | 34.7V at 45A - clamped voltage during 10/1000µs surge; determines worst-case overvoltage seen by protected ICs |
| PPK | 1500W - peak pulse power handling per single 1ms waveform; enables immunity to high-energy transients like load dump or lightning-induced surges |
| IR @ VWM | <1µA - ultra-low reverse leakage at rated stand-off voltage; avoids signal path degradation in precision sensor or communication circuits |
| TJ max | +150°C - maximum junction temperature rating; supports operation in under-hood automotive and industrial environments |
| Response time | <1.0ps - sub-picosecond junction response; mitigates ESD events before downstream circuitry sustains damage |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration with cathode band omitted (symmetrical terminals). Molding compound complies with UL 94V-0; matte tin-plated leads meet J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bidirectional terminal pair | No polarity marking; identical electrical behavior in either direction - simplifies PCB layout and eliminates orientation errors during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors requiring zero-failure reliability under thermal cycling and vibration |
| ISO 7637-2 compliant | Withstands standardized automotive transient pulses (Pulse 1, 2a, 2b, 3a, 3b) without degradation - eliminates need for additional filtering stages |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives; critical for high-humidity industrial deployments |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; compatible with standard SMT assembly lines without process modification |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives; supports green manufacturing and end-of-life recycling compliance |
Applications
| Automotive Infotainment Interface | Industrial RS-485 Data Line |
|---|---|
Use Scenario: Protecting HDMI, USB, or LVDS signal pairs in head units and display modules from ESD and battery dump transients. IC Role / Device Role: Bidirectional TVS placed directly at connector entry point to shunt surge energy before reaching serializer/deserializer ICs. Use Value: Clamps to ≤34.7V while maintaining <1µA leakage - preserves signal integrity and prevents false triggering in high-speed differential links. | Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor switching noise and ground bounce. IC Role / Device Role: Symmetrical protection on A/B bus lines to absorb common-mode and differential surges up to 1500W. Use Value: Fast <1.0ps response and ISO 7637-2 Pulse 2b immunity ensure uninterrupted communication during heavy machinery operation. |
| Telecom Base Station Antenna Port | Medical Diagnostic Sensor Input |
Use Scenario: Shielding RF front-end components from lightning-induced surges entering via antenna feed lines in outdoor small cells. IC Role / Device Role: First-line transient suppression before LNA and filter networks; mounted adjacent to SMA connector. Use Value: 1500W peak power rating and 34.7V clamping limit enable survival of multi-kA induced currents without failure. | Use Scenario: Guarding high-impedance analog inputs of ECG or EEG amplifiers against electrostatic discharge during patient contact. IC Role / Device Role: Low-leakage bidirectional clamp on instrumentation amplifier inputs to prevent saturation or latch-up. Use Value: Sub-1µA leakage at 19.4V and <0.094%/°C VBR drift preserve DC accuracy and baseline stability across clinical operating temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | 600W peak power rating (vs. 1500W); same DO-214AA package but lower surge capacity | Suitable for lower-energy ESD-only scenarios; insufficient for ISO 7637-2 Pulse 1 or load dump | Select 1.5SMC24CH when automotive-grade 1500W surge immunity is mandatory |
| SMCJ24CA | Identical 1500W rating and DO-214AB package; VBR = 26.7–29.5V (wider tolerance than 1.5SMC24CH's 21.6–26.4V) | Higher VBR increases risk of false triggering near 24V rail; less precise clamping control | Choose 1.5SMC24CH for tighter VBR tolerance and guaranteed ≤34.7V clamping at 45A |
Compared with SMBJ24CA and SMCJ24CA, the 1.5SMC24CH delivers superior surge margin for automotive and industrial use cases through its combination of 1500W capability, narrow 21.6–26.4V VBR window, and AEC-Q101 qualification - ensuring robustness where transient energy and reliability requirements are most stringent.
Availability
1.5SMC24CH is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial RS-485 networks, and telecom base station protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for 1.5SMC24CH 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, and rectifiers with global distribution and AEC-Q101 validation capabilities.
The 1.5SMC24CH belongs to TSC's 1.5SMC(A)H series - engineered specifically for high-reliability bidirectional surge suppression in automotive, industrial, and telecom infrastructure where ISO 7637-2 compliance and 1500W pulse handling are non-negotiable.
FAQ
What does the 'CH' suffix indicate in 1.5SMC24CH?
The 'CH' suffix denotes a bidirectional configuration - meaning the 1.5SMC24CH provides symmetrical transient suppression in both polarities without cathode marking. This differs from unidirectional 'H' variants and enables simplified layout on AC-coupled or differential signal lines where polarity reversal may occur.
Is 1.5SMC24CH suitable for automotive applications?
Yes, the 1.5SMC24CH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements - making it appropriate for under-hood, chassis, and infotainment systems. Its 1500W peak power rating and 150°C junction temperature rating support harsh automotive operating conditions.
What is the clamping voltage of 1.5SMC24CH at its rated peak current?
The 1.5SMC24CH has a maximum clamping voltage (VC) of 34.7V at 45A peak impulse current (IPPM) under the standard 10/1000µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated surge event.
How does the 1.5SMC24CH compare to unidirectional 1.5SMC24H in terms of electrical performance?
The 1.5SMC24CH and 1.5SMC24H share identical VBR (21.6–26.4V), VWM (19.4V), and VC (34.7V) specifications, but the CH version operates bidirectionally with no polarity dependence, whereas the H version requires correct anode/cathode orientation and only protects in one direction.
What packaging and reel quantity is available for 1.5SMC24CH?
The 1.5SMC24CH is supplied in DO-214AB (SMC) package on tape-and-reel format with 3,000 units per reel. The device features matte tin-plated leads compliant with J-STD-002 and moisture sensitivity level 1 - enabling direct placement without baking.
1.5SMC24CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 45A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC24CH FAQ
1.How can I place an order for 1.5SMC24CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC24CH 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 1.5SMC24CH reliable?
The price and inventory of 1.5SMC24CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC24CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC24CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC24CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC24CH?
1.5SMC24CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC24CH 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 1.5SMC24CH?
For technical support, including 1.5SMC24CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC24CH requirements.
6.How does Aetrix verify that 1.5SMC24CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC24CH 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 1.5SMC24CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC24CH?
All 1.5SMC24CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC24CH, 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 1.5SMC24CH part is unused and in its original packaging.
Return procedure for 1.5SMC24CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC24CH 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…
