My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ90CAHM3/I
- Part No.:
- SMCJ90CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90CAHM3/I.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,138
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ90CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 90 V standoff voltage (VWM), 146 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (10/1000 µs waveform), commonly deployed on automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the SMCJ90CAHM3/I datasheet, SMCJ90CAHM3/I pinout, SMCJ90CAHM3/I application, or SMCJ90CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJA = 75 °C/W) under standard PCB pad layout.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both directions due to its bidirectional construction. Its glass-passivated junction enables fast response (<1 ns) to transients induced by inductive switching or ESD events, while maintaining low incremental surge resistance and stable clamping performance across -55 °C to +150 °C operating temperature range.
The SMCJ90CAHM3/I is rated for 1500 W peak pulse power (10/1000 µs), with a breakdown voltage (VBR) range of 100–111 V at 1 mA test current and maximum reverse leakage (ID) ≤ 1.0 µA at VWM = 90 V. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 100 V / 111 V at 1 mA - Ensures reliable triggering above system operating voltage with margin |
| VC @ IPPM | 146 V at 10.3 A - Limits transient voltage seen by downstream ICs during 10/1000 µs surge |
| PPPM | 1500 W - Withstands high-energy surges common in automotive load-dump or ISO 7637-2 tests |
| TJ max | +150 °C - Supports operation in under-hood automotive environments and industrial enclosures |
| RθJA | 75 °C/W - Requires minimum 8.0 mm × 8.0 mm copper pads per terminal for thermal derating compliance |
| Package | SMC (DO-214AB) - Surface-mount footprint compatible with automated assembly and IPC-7351B standards |
Pinout & Package
SMCJ90CAHM3/I uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with two terminals and no polarity marking (bidirectional configuration). Dimensions are 7.75 mm × 6.22 mm × 2.62 mm (L × W × H), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse bias) | One side of symmetrical junction; conducts during negative transients relative to cathode reference |
| Cathode | Transient current entry (forward bias) | Other side of symmetrical junction; conducts during positive transients - functionally identical to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20E material requirements |
| Low Rsurge | Minimizes voltage overshoot during high-di/dt events such as relay coil de-energization |
| MSL Level 1 | Allows unlimited floor life and reflow compatibility up to 260 °C peak temperature |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector interface to shunt surge energy before reaching signal conditioning circuitry. Use Value: Clamps 1500 W surges to ≤146 V, preventing damage to 5 V or 12 V rail-connected transceivers and preserving signal integrity during ISO 16750-2 testing. | Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from motor contactors or solenoid valves. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, positioned upstream of optocoupler or Schmitt-trigger input stages. Use Value: Withstands repetitive 10/1000 µs transients up to 10.3 A while maintaining <1 µA leakage at 90 V, ensuring long-term reliability in factory automation environments. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Shielding Ethernet PHY front-end circuits and PoE-powered device inputs from lightning-induced surges on unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: Secondary-level TVS on differential pairs, used alongside common-mode chokes and primary GDTs for multi-stage protection. Use Value: Provides sub-1 ns response and symmetrical clamping to limit differential-mode transients to safe levels for 100BASE-TX or 1000BASE-T receivers. | Use Scenario: Protecting USB-C and barrel-jack inputs of wall adapters against user-handling ESD and accidental AC mains misconnection. IC Role / Device Role / Timing Role: Input-stage transient suppressor between fuse/resistor network and primary-side controller IC. Use Value: Halogen-free construction supports eco-labeling requirements, while 146 V clamping prevents latch-up in 90–100 V-rated primary-side MOSFETs during 1 kV/150 pF ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90CAHE3/A | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Suitable for space-constrained consumer ports but not automotive load-dump duty cycles | Select when board area is critical and surge energy is limited to IEC 61000-4-2/4-5 level 3 |
| 1.5KE91CA | Through-hole DO-201 package, same VWM/VC, higher IPPM (16.4 A), lower cost | Requires manual or wave soldering; unsuitable for high-density SMT production | Choose for prototyping, low-volume industrial controls, or legacy through-hole designs |
Compared with SMAJ90CAHE3/A and 1.5KE91CA, the SMCJ90CAHM3/I delivers superior surge handling (1500 W vs. 400 W/1500 W), AEC-Q101 qualification, and halogen-free compliance-making it the preferred choice for automotive-grade, high-reliability SMT deployments where thermal management and regulatory alignment are critical.
Availability
SMCJ90CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMCJ90CAHM3/I 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMCJ series was developed to deliver high-power, surface-mount TVS solutions for automotive and industrial systems demanding AEC-Q101 qualification, low clamping voltage, and robust surge immunity-particularly in harsh electromagnetic environments.
FAQ
What is the clamping voltage of SMCJ90CAHM3/I at its rated peak pulse current?
The SMCJ90CAHM3/I has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 146 V during surge events, making it suitable for protecting 90 V-rated circuits with appropriate safety margin. The SMCJ90CAHM3/I maintains this clamping performance across its full operating temperature range.
Is SMCJ90CAHM3/I qualified for automotive applications?
Yes, the SMCJ90CAHM3/I carries AEC-Q101 qualification, confirmed in Vishay's official documentation (Document Number: 88394, Revision: 09-Jan-2024). Its HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. This makes the SMCJ90CAHM3/I appropriate for under-hood and chassis-mounted automotive subsystems, including body control modules, ADAS sensor interfaces, and infotainment power rails where reliability under thermal and electrical stress is mandatory.
How does the bidirectional design of SMCJ90CAHM3/I affect its circuit placement?
The bidirectional design of SMCJ90CAHM3/I eliminates polarity sensitivity, allowing placement across any two nodes requiring symmetrical overvoltage protection-such as differential signal lines (CAN, RS-485), AC-coupled analog paths, or floating power domains. Unlike unidirectional TVS diodes, the SMCJ90CAHM3/I requires no cathode band orientation check during placement, simplifying SMT assembly and reducing risk of misorientation-related field failures. Its terminals are functionally interchangeable in circuit operation.
What is the thermal resistance and recommended PCB layout for SMCJ90CAHM3/I?
The SMCJ90CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. To maintain rated power dissipation and avoid thermal runaway during repetitive surges, designers must implement these minimum pad dimensions with 2 oz copper and thermal vias if ambient temperatures exceed 70 °C. The SMCJ90CAHM3/I's RθJL is 15 °C/W, supporting lead-based heat sinking in constrained layouts.
Does SMCJ90CAHM3/I meet moisture sensitivity and reflow requirements for automated assembly?
Yes, the SMCJ90CAHM3/I meets MSL Level 1 per J-STD-020, with a maximum reflow peak temperature of 260 °C and unlimited floor life-no dry-pack or baking required prior to soldering. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and the molding compound satisfies UL 94 V-0 flammability rating. These attributes ensure robust compatibility with high-throughput SMT lines handling automotive and industrial production volumes.
SMCJ90CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMCJ90CAHM3/I FAQ
1.How can I place an order for SMCJ90CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90CAHM3/I 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 SMCJ90CAHM3/I reliable?
The price and inventory of SMCJ90CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ90CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ90CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90CAHM3/I?
SMCJ90CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90CAHM3/I 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 SMCJ90CAHM3/I?
For technical support, including SMCJ90CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90CAHM3/I requirements.
6.How does Aetrix verify that SMCJ90CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ90CAHM3/I 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 SMCJ90CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ90CAHM3/I?
All SMCJ90CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90CAHM3/I, 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 SMCJ90CAHM3/I part is unused and in its original packaging.
Return procedure for SMCJ90CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ90CAHM3/I 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
