My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5SMC150H
- Part No.:
- 1.5SMC150H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150H.pdf
- Description:
- 1500W, 150V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,262
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC150H from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It delivers 1500W peak pulse power, 135–165V breakdown voltage (VBR), and clamps transients to ≤215V at 7.3A peak impulse current (IPPM), meeting ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics.
For engineers reviewing the 1.5SMC150H datasheet, 1.5SMC150H pinout, 1.5SMC150H application, or 1.5SMC150H equivalent, key selection criteria include working stand-off voltage (121V), low leakage (<1µA at VWM), AEC-Q101 qualification, DO-214AB package compatibility, and clamping performance under 10/1000µs surge waveforms.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1.0ps) and stable clamping across temperature. Its thermal design supports 150°C maximum junction temperature with RθJC = 15°C/W and RθJA = 50°C/W, enabling reliable operation in high-ambient environments such as engine control units and industrial power supplies.
The device operates with a 121V working stand-off voltage (VWM) and exhibits a 0.108%/°C temperature coefficient of VBR, ensuring predictable voltage drift over temperature. It is rated for 200A non-repetitive forward surge (IFSM) and maintains <1µA blocking leakage at rated VWM, supporting low-power standby circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 135V / 165V - Ensures consistent avalanche initiation across production lots and temperature range |
| VWM | 121V - Maximum continuous DC or RMS voltage the device blocks without conduction |
| VC@IPPM | ≤215V at 7.3A - Clamping voltage during 10/1000µs surge defines protected circuit's maximum stress level |
| PPK | 1500W - Peak pulse power handling capacity per single 10/1000µs transient event |
| IR@VWM | <1µA - Ultra-low leakage preserves battery life and signal integrity in always-on systems |
| TJ max | +150°C - Enables deployment in under-hood automotive and high-temperature industrial enclosures |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with matte tin-plated leads, J-STD-002 solderable |
Pinout & Package
Package: DO-214AB (SMC), molded plastic case with polarity-indicating cathode band; meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to protected line (e.g., 12V rail or CAN_H); conducts during reverse-biased surge events |
| Cathode | Clamp reference terminal | Connected to ground or low-impedance return path; establishes clamping voltage relative to this node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass-passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) without degradation |
| Fast response time | <1.0ps enables clamping before sensitive downstream ICs experience overvoltage damage |
| Moisture sensitivity level 1 | No floor-life limitation or bake requirement prior to reflow; compatible with standard SMT assembly lines |
Applications
| Automotive Power Rail Protection | Industrial DC Input Stage |
|---|---|
Use Scenario: Protecting 12V/24V supply inputs in body control modules against load dump and alternator transients. IC Role / Device Role: Unidirectional TVS placed between battery rail and primary DC-DC converter input. Use Value: Limits voltage to ≤215V during ISO 7637-2 Pulse 5a (load dump), preventing damage to upstream regulators and microcontrollers. |
Use Scenario: Safeguarding programmable logic controller (PLC) power inputs exposed to field wiring surges. IC Role / Device Role: Primary surge clamp on 24V DC input stage, upstream of EMI filter and bulk capacitor. Use Value: Absorbs 1500W transients while maintaining <1µA leakage, preserving system efficiency during idle operation. |
| Telecom Interface Protection | Motor Drive Control Signal Line |
Use Scenario: Shielding RS-485 transceiver VCC pins from ESD and lightning-induced surges on outdoor data links. IC Role / Device Role: Standoff-clamp TVS on power rail feeding isolated communication ICs. Use Value: Clamps 8kV contact ESD events to safe levels within nanoseconds, avoiding latch-up or permanent failure of transceivers. |
Use Scenario: Protecting gate driver supply rails in BLDC motor inverters subjected to commutation noise and inductive kickback. IC Role / Device Role: Secondary TVS on 15V auxiliary supply feeding half-bridge drivers. Use Value: Suppresses repetitive 100V–200V spikes from parasitic inductance, extending driver IC lifetime and reducing false fault triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Lower peak power (600W), same VBR range (135–165V), SMB package (smaller footprint, higher thermal resistance) | Suitable for space-constrained consumer electronics but not automotive load dump | Select only if surge energy is ≤600W and ambient temperature remains <85°C |
| 1.5KE150A | Through-hole TO-204AA (DO-41) package, identical electrical specs, lower assembly cost but no AEC-Q101 qualification | Acceptable for industrial equipment where automated SMT is not required | Choose when board-level rework tolerance and legacy through-hole infrastructure outweigh automotive qualification needs |
Compared with SMBJ150A and 1.5KE150A, the 1.5SMC150H uniquely combines AEC-Q101 qualification, 1500W surge capability, and DO-214AB surface-mount compatibility-making it the only option qualified for automotive power rail protection requiring both high energy absorption and automated assembly.
Availability
1.5SMC150H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, and telecom power supplies requiring stable component supply, AEC-Q101 compliance, and high-reliability surge immunity.
Supply support for 1.5SMC150H 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 1.5SMCxxH series was developed specifically for high-energy, surface-mount transient suppression in automotive and industrial environments-emphasizing robustness, repeatable clamping, and compatibility with automated SMT processes.
FAQ
What is the maximum clamping voltage of the 1.5SMC150H under a standard 10/1000µs surge?
The 1.5SMC150H has a maximum clamping voltage (VC) of 215V when subjected to its rated peak impulse current of 7.3A, defined by the 10/1000µs double-exponential waveform per IEC 61000-4-5 and ISO 7637-2. This value is guaranteed across the full operating temperature range and ensures downstream components see no more than 215V during surge events.
Is the 1.5SMC150H suitable for bidirectional transient protection?
No-the 1.5SMC150H is a unidirectional TVS diode intended for DC line protection with defined anode/cathode polarity. For bidirectional applications (e.g., AC lines or differential data buses), the 1.5SMC150AH variant must be used, which provides symmetrical clamping in both directions and carries the "AH" suffix per Taiwan Semiconductor's ordering nomenclature.
Does the 1.5SMC150H meet automotive qualification standards?
Yes-the 1.5SMC150H is explicitly AEC-Q101 qualified and tested per the full stress test schedule, including HTGB, H3TRB, temperature cycling, and ESD. It also meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements, making it approved for use in automotive power networks and control modules.
What is the leakage current specification for the 1.5SMC150H at its working stand-off voltage?
At its working stand-off voltage (VWM) of 121V, the 1.5SMC150H guarantees a maximum blocking leakage current (IR) of 1µA at 25°C. This ultra-low leakage supports energy-sensitive designs such as battery-backed systems and always-on monitoring circuits without compromising standby power budgets.
What package type does the 1.5SMC150H use, and what are its key mechanical attributes?
The 1.5SMC150H uses the DO-214AB (SMC) surface-mount package: a rectangular molded case with matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability rating, and JESD201 Class 2 whisker resistance. Its polarity is marked by a cathode band, and it weighs approximately 0.210g.
1.5SMC150H 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 121V
- Voltage - Breakdown (Min):
- 135V
- Voltage - Clamping (Max) @ Ipp:
- 215V
- Current - Peak Pulse (10/1000µs):
- 7.3A
- 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)
1.5SMC150H FAQ
1.How can I place an order for 1.5SMC150H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150H 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 1.5SMC150H reliable?
The price and inventory of 1.5SMC150H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC150H is usually 5 days.
3.What payment methods are accepted for 1.5SMC150H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150H?
1.5SMC150H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150H 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 1.5SMC150H?
For technical support, including 1.5SMC150H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150H requirements.
6.How does Aetrix verify that 1.5SMC150H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150H 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 1.5SMC150H meets industry standards.
7.What is the process for return or replacement of 1.5SMC150H?
All 1.5SMC150H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150H, 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 1.5SMC150H part is unused and in its original packaging.
Return procedure for 1.5SMC150H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150H 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…
