My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5SMC82CH
- Part No.:
- 1.5SMC82CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82CH.pdf
- Description:
- 1500W, 82V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,179
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC82CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 82V breakdown voltage (VBR = 73.8–90.2 V), 1500 W peak pulse power rating (tp = 1 ms), clamping voltage of 118 V at 13 A, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and switching transients.
For engineers reviewing the 1.5SMC82CH datasheet, 1.5SMC82CH pinout, 1.5SMC82CH application, or 1.5SMC82CH equivalent, this device is selected for robust ESD and lightning-induced transient suppression in unidirectional/bidirectional DC power interfaces where low clamping ratio, sub-1 ps response, and AEC-Q101 qualification are required.
Technical Context
The 1.5SMC82CH implements a glass-passivated silicon junction optimized for fast avalanche response (<1.0 ps typical) and stable bidirectional clamping behavior across both polarities. Its DO-214AB (SMC) package enables automated placement while maintaining thermal resistance of RθJA = 50°C/W and RθJC = 15°C/W for reliable power dissipation under repetitive surges.
It operates over –55°C to +150°C junction temperature range with <1 µA leakage above 70.1 V (VWM = 66.4 V), and exhibits a temperature coefficient of VBR ≤ 0.105 %/°C - ensuring predictable voltage stability across automotive thermal cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 73.8 V / 90.2 V - defines guaranteed avalanche initiation window under 10 mA test current; ensures consistent turn-on across production lots |
| VWM | 66.4 V - maximum continuous reverse operating voltage before significant leakage; sets safe DC rail margin for 72 V nominal systems |
| VC @ IPPM | 118 V at 13 A - clamped voltage during 10/1000 µs surge; determines protected circuit's peak stress level |
| PPK | 1500 W - peak pulse power handling per 1 ms waveform; supports ISO 7637-2 Pulse 5a (load dump) energy absorption |
| IR @ VWM | ≤1 µA - ultra-low blocking leakage; avoids parasitic loading on high-impedance sensor or control lines |
| TJ max | +150 °C - junction temperature limit enabling under-hood automotive deployment without derating |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 0.210 g mass and J-STD-002 solderable matte tin leads |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with cathode band marking; bidirectional symmetry means no polarity-dependent pin assignment - terminals are functionally identical for AC-coupled or dual-rail protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge conduction path | Both terminals serve as interchangeable avalanche junctions; no DC bias directionality required |
| Case | Thermal and mechanical interface | Exposed copper slug provides primary heat path to PCB; requires thermal pad for RθJA compliance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress conditions |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (capacitive coupling) waveforms |
| Fast response time | <1.0 ps typical - limits voltage overshoot before clamping engages, protecting downstream FET gates and IC inputs |
| Glass passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives; supports J-STD-020 MSL Level 1 |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive - suitable for green manufacturing and export compliance |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24 V and 48 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed upstream of DC-DC converters and microcontroller power inputs. Use Value: Limits peak voltage to 118 V during 13 A ISO 7637-2 Pulse 5a events, preventing damage to 120 V-rated input capacitors and LDOs. |
Use Scenario: Shielding analog and digital I/O channels in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary surge shunt on 24 V supply rails and signal lines interfacing with solenoids or motor drivers. Use Value: Sub-1 ps response captures fast-rising transients from relay coil flyback, reducing need for secondary RC filtering. |
| Telecom DC Power Feeds | Renewable Energy Inverter Control |
Use Scenario: Safeguarding PoE-powered equipment and base station RF modules fed from centralized -48 V DC plants. IC Role / Device Role / Timing Role: Bidirectional rail clamp on -48 V return path and auxiliary 3.3/5 V regulation inputs. Use Value: 66.4 V working voltage accommodates -48 V nominal with ±10% tolerance and ripple; 1500 W rating handles lightning-induced common-mode surges. |
Use Scenario: Protecting gate driver supplies and MCU reset lines in solar string inverters subject to grid-switching transients. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 15 V gate drive rails and 3.3 V monitoring circuits. Use Value: 0.105 %/°C VBR tempco ensures stable clamping across -40°C to +85°C ambient, critical for outdoor enclosure operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Lower PPK = 600 W; VC = 137 V @ 4.4 A; SMB package (smaller footprint, higher RθJA) | Not suitable for ISO 7637-2 Pulse 5a; limited to lower-energy IEC 61000-4-5 line surges | Select when space-constrained and peak surge energy is ≤600 W; verify thermal margin with PCB copper area |
| 1.5KE82CA | Through-hole TO-204AA (DO-41); same VBR/VC specs but slower response (~1 ns); higher VF in forward conduction | Requires manual assembly; unsuitable for automated SMT lines; less robust for fast ESD events | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ85CA and 1.5KE82CA, the 1.5SMC82CH delivers 2.5× higher surge power handling in an AEC-Q101-qualified SMT package with faster response and lower clamping voltage - making it the preferred choice for production automotive and industrial systems requiring certified reliability and high-energy immunity.
Availability
1.5SMC82CH is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom power systems requiring stable component supply, AEC-Q101 compliance, and ISO 7637-2 transient immunity.
Supply support for 1.5SMC82CH 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 capability.
The 1.5SMCxxCH series was developed specifically for high-reliability bidirectional surge protection in automotive and industrial environments - emphasizing low clamping ratio, thermal robustness, and automated manufacturability in DO-214AB.
FAQ
What does the "CH" suffix indicate in 1.5SMC82CH?
The "CH" suffix denotes a bidirectional configuration - meaning the 1.5SMC82CH has symmetrical avalanche characteristics in both forward and reverse directions, unlike unidirectional "H" variants. This allows single-device protection of AC-coupled signals or floating DC rails without polarity concerns, and is essential for meeting ISO 7637-2 Pulse 1 and 3b requirements.
How does 1.5SMC82CH differ from the "AH" variant (e.g., 1.5SMC82AH)?
The 1.5SMC82AH is also bidirectional but features tighter VBR tolerance (77.9–86.1 V vs. 73.8–90.2 V for 1.5SMC82CH), resulting in higher minimum breakdown voltage and slightly lower clamping voltage (113 V vs. 118 V). The 1.5SMC82CH offers broader VBR spread for cost-sensitive applications where exact voltage matching is less critical than surge energy handling.
Can 1.5SMC82CH be used in place of a unidirectional TVS like 1.5SMC82H?
No - the 1.5SMC82CH is strictly bidirectional and lacks a defined anode/cathode polarity; substituting it for a unidirectional 1.5SMC82H would compromise DC blocking capability in circuits relying on forward conduction or polarity-specific clamping. Use only where bidirectional protection is explicitly required, such as across differential pairs or AC power inputs.
What is the maximum surge current 1.5SMC82CH can handle, and under what waveform?
The 1.5SMC82CH supports a maximum peak impulse current (IPPM) of 13 A under the standardized 10/1000 µs double-exponential surge waveform (per Fig.5 in the datasheet). This corresponds to its 1500 W peak pulse power rating at TA = 25°C; derating applies above ambient temperature per Fig.2.
Is 1.5SMC82CH compatible with lead-free reflow soldering processes?
Yes - the 1.5SMC82CH uses matte tin-plated leads compliant with J-STD-002 and rated for lead-free reflow profiles up to 260°C peak temperature. Its moisture sensitivity level is J-STD-020 Level 1, meaning it may be used directly from dry pack without baking, supporting high-yield automated assembly.
1.5SMC82CH 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):
- 66.4V
- Voltage - Breakdown (Min):
- 73.8V
- Voltage - Clamping (Max) @ Ipp:
- 118V
- Current - Peak Pulse (10/1000µs):
- 13A
- 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)
1.5SMC82CH FAQ
1.How can I place an order for 1.5SMC82CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82CH 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 1.5SMC82CH reliable?
The price and inventory of 1.5SMC82CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC82CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC82CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82CH?
1.5SMC82CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82CH 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 1.5SMC82CH?
For technical support, including 1.5SMC82CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82CH requirements.
6.How does Aetrix verify that 1.5SMC82CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82CH 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 1.5SMC82CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC82CH?
All 1.5SMC82CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82CH, 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 1.5SMC82CH part is unused and in its original packaging.
Return procedure for 1.5SMC82CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82CH 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
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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…
