My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ16CHE3/9AT
- Part No.:
- SMCJ16CHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CHE3/9AT.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,199
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ16CHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 16 V standoff voltage (VWM), 17.8–19.7 V breakdown range (VBR), 26.0 V clamping voltage at 57.7 A peak pulse current, and 1500 W peak pulse power dissipation with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial motor drives.
For engineers reviewing the SMCJ16CHE3/9AT datasheet, SMCJ16CHE3/9AT pinout, SMCJ16CHE3/9AT application, or SMCJ16CHE3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), RoHS-compliant matte tin plating, and JEDEC JESD201 Class 2 whisker test compliance per HE3 suffix.
Technical Context
The SMCJ16CHE3/9AT operates as a unidirectional avalanche diode, clamping transients above its reverse standoff voltage (16 V) by entering avalanche breakdown. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling consistent clamping performance under repetitive surge stress.
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads per terminal, it delivers 1500 W peak pulse power handling with derating above 25 °C ambient (per Fig. 2), and supports operating junction temperatures from –55 °C to +150 °C - validated per AEC-Q101 stress testing for automotive under-hood use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1.0 mA - guaranteed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 26.0 V at 57.7 A (10/1000 µs) - peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 1500 W - maximum single-pulse energy absorption capability; enables protection against ISO 7637-2 Pulse 1/2a/5a events. |
| ID (Leakage Current) | 1.0 µA max at 16 V - ultra-low reverse leakage preserves system efficiency and battery life in always-on circuits. |
| TJ Range | –55 °C to +150 °C - qualified for under-hood automotive environments and industrial high-temp enclosures. |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on standard 8 mm × 8 mm pads; informs heatsinking requirements. |
Pinout & Package
Package: DO-214AB (SMCJ), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD22-B102; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (for uni-directional operation) | Connected to ground or lower-potential rail; conducts during positive surges when cathode is biased higher. |
| Cathode | Avalanche clamping node | Connected to protected line (e.g., 12 V supply); enters breakdown when line voltage exceeds VBR relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors - meets stress test requirements for temperature cycling, HTRB, and ESD. |
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift due to moisture ingress or contamination. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 16750-2 load dump), improving clamping precision. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning; supports automated SMT assembly without popcorn risk. |
| JESD201 Class 2 whisker resistance | HE3 suffix confirms mitigation of tin whisker growth under thermal/humidity stress - critical for long-life automotive modules. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against ISO 7637-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery feed and LDO/regulator input. Use Value: Limits voltage to ≤26.0 V during 1500 W surges, preventing regulator latch-up and MCU brownout in AEC-Q100 Grade 1 systems. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation PLCs. IC Role / Device Role / Timing Role: Line-side transient suppressor on 4–20 mA or 0–10 V output traces. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) to <30 V within nanoseconds, preserving ADC accuracy and avoiding signal chain reset. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Safeguarding 48 V PoE-powered equipment (e.g., IP cameras, wireless APs) from lightning-induced surges on Ethernet lines. IC Role / Device Role / Timing Role: Primary TVS on secondary-side DC bus after PoE controller and isolation transformer. Use Value: Absorbs 10/1000 µs surges up to 1500 W without degradation, maintaining uptime in outdoor deployments per IEC 61000-4-5 Level 4. |
Use Scenario: Preventing damage to USB-C port controllers and Type-C PD ICs from hot-plug voltage spikes and ESD during mating. IC Role / Device Role / Timing Role: Uni-directional clamp on VBUS line referenced to GND. Use Value: Withstands >1000 surges at 57.7 A while holding clamping voltage at 26.0 V - avoids VBUS overvoltage shutdown in portable devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VBR but higher VC (33.0 V at 12.3 A). | Restricted to lower-energy transients (e.g., board-level ESD only); unsuitable for automotive load dump or PoE surge. | Select when space-constrained and surge energy is ≤400 W; verify clamping margin with downstream IC absolute max ratings. |
| SMCJ16AHE3/9AT | Identical electrical specs and AEC-Q101 qualification; differs only in packaging - same HE3 suffix, but base P/N uses "A" instead of "CH" variant code. | No functional difference; both meet identical automotive reliability and thermal specs. | SMCJ16AHE3/9AT is a direct form-fit-function alternative; interchange permitted with no design change required. |
Compared with SMCJ16CHE3/9AT, SMAJ16A-E3/61T offers reduced surge capacity in a smaller footprint, while SMCJ16AHE3/9AT provides identical protection performance with alternate part numbering - making the latter a seamless drop-in option for BOM consolidation.
Availability
SMCJ16CHE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power input stages requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for SMCJ16CHE3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 validation and 1500 W surge capability are mandatory.
FAQ
What does the "CH" in SMCJ16CHE3/9AT signify?
The "CH" suffix in SMCJ16CHE3/9AT denotes a specific manufacturing variant within Vishay's SMCJ family, indicating compliance with the HE3 qualification level (AEC-Q101 qualified, JESD201 Class 2 whisker resistance) and DO-214AB package configuration. It is not a functional deviation from SMCJ16AHE3/9AT but reflects internal process and traceability coding used in Vishay's production lot control. The SMCJ16CHE3/9AT maintains identical electrical, thermal, and reliability specifications as other HE3-suffixed SMCJ16A variants.
Is SMCJ16CHE3/9AT suitable for bi-directional transient protection?
No, SMCJ16CHE3/9AT is a unidirectional TVS diode, as confirmed by its "A" suffix (vs. "CA" for bi-directional types). It conducts only in reverse bias above VBR and blocks forward current beyond VF ≈ 3.5 V at 100 A. For AC-coupled or dual-polarity signal lines, a bi-directional part like SMCJ16CAHE3/9AT must be used. Using SMCJ16CHE3/9AT in bi-directional applications risks forward conduction failure or inadequate clamping during negative transients.
How does the 1500 W peak pulse power rating of SMCJ16CHE3/9AT translate to real-world surge immunity?
The 1500 W rating for SMCJ16CHE3/9AT is specified at 25 °C ambient using a 10/1000 µs double-exponential waveform - matching ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave tests. At 85 °C junction temperature, derating reduces usable power to ~900 W (per Fig. 2), meaning SMCJ16CHE3/9AT reliably suppresses 12 V automotive load dumps up to 1500 W only when mounted on adequate copper area (8 mm × 8 mm pads) and thermally managed. This makes SMCJ16CHE3/9AT appropriate for front-end protection in ECUs and gate drivers.
What is the significance of the HE3 suffix in SMCJ16CHE3/9AT?
The HE3 suffix in SMCJ16CHE3/9AT indicates RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance - exceeding baseline commercial E3 (Class 1A) requirements. This means SMCJ16CHE3/9AT has undergone accelerated environmental stress testing (including temperature cycling, HTRB, and unbiased HAST) to validate reliability in automotive under-hood applications. The HE3 designation assures designers that SMCJ16CHE3/9AT meets stringent automotive longevity and field-failure targets not required for standard industrial-grade TVS diodes.
Can SMCJ16CHE3/9AT replace SMCJ16A-E3/9AT in an existing design?
Yes, SMCJ16CHE3/9AT can replace SMCJ16A-E3/9AT if AEC-Q101 qualification and enhanced whisker resistance are required. Both share identical VWM (16 V), VBR (17.8–19.7 V), VC (26.0 V), and PPPM (1500 W), but SMCJ16CHE3/9AT adds automotive-grade reliability (HE3) versus commercial-grade E3. No PCB layout or schematic changes are needed - the DO-214AB package, pinout, and electrical behavior are identical. However, confirm that the application demands AEC-Q101 validation before substitution, as HE3 parts may carry higher cost and longer lead times.
SMCJ16CHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 52.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ16CHE3/9AT FAQ
1.How can I place an order for SMCJ16CHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CHE3/9AT 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 SMCJ16CHE3/9AT reliable?
The price and inventory of SMCJ16CHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16CHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16CHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CHE3/9AT?
SMCJ16CHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CHE3/9AT 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 SMCJ16CHE3/9AT?
For technical support, including SMCJ16CHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CHE3/9AT requirements.
6.How does Aetrix verify that SMCJ16CHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16CHE3/9AT 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 SMCJ16CHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16CHE3/9AT?
All SMCJ16CHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CHE3/9AT, 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 SMCJ16CHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16CHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CHE3/9AT 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 …
