My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ170C-E3/57T
- Part No.:
- SMCJ170C-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ170C-E3/57T.pdf
- Description:
- TVS DIODE 170VWM 304VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,566
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ170C-E3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 170 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), clamping voltage of 275 V at 5.5 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCJ170C-E3/57T datasheet, SMCJ170C-E3/57T pinout, SMCJ170C-E3/57T application, or SMCJ170C-E3/57T equivalent, key selection criteria include bi-directional clamping capability, 10/1000 µs surge waveform compliance, junction temperature range (–55 °C to +150 °C), RoHS-compliant matte tin plating, and MSL Level 1 moisture sensitivity rating.
Technical Context
The SMCJ170C-E3/57T operates as a bi-directional avalanche diode, providing symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching transients.
Designed for surface-mount use on 8.0 mm × 8.0 mm copper pads, it delivers 1500 W peak pulse power under standardized 10/1000 µs waveform conditions and maintains stable performance up to TJ = 150 °C with thermal resistance RθJA = 75 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 170 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 189 V / 209 V at IT = 1 mA - Ensures reliable breakdown onset within defined tolerance band |
| VC @ IPPM | 275 V at 5.5 A - Clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - Peak transient energy absorption capacity per IEC 61000-4-5 level 4 compliance |
| TJ range | –55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
| Package | DO-214AB (SMCJ) - Standardized SMT footprint compatible with automated placement and reflow |
| Qualification | AEC-Q101 qualified - Validated for automotive electronic systems requiring high-reliability stress testing |
Pinout & Package
DO-214AB (SMCJ) package: surface-mount, bi-directional device with no polarity marking; cathode band absent per bi-directional configuration; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Bi-directional terminals conduct surge current equally in either direction; no functional distinction between ends |
| Case (body) | Thermal conduction path | DO-214AB molded body transfers heat to PCB copper pads; requires 8.0 mm × 8.0 mm minimum pad area per terminal |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| Glass-passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and long-term reliability under thermal cycling |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed automotive and industrial enclosures |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontrollers connected to 12 V battery rails subject to load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping element absorbing ISO 16750-2 load dump energy (up to 35 V, 100 ms) and ISO 7637-2 transient pulses. Use Value: Limits voltage seen by protected ICs to ≤275 V during 1500 W surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLC modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Fast-response shunt clamp placed directly at sensor connector to divert inductive kickback before reaching ADC input stage. Use Value: Sub-1 ns response ensures clamping activation prior to 100 ns rise-time transients, preserving signal integrity and measurement accuracy. |
| Telecom DC Power Feeds | Consumer USB-C Port ESD Protection |
Use Scenario: Securing 48 V PoE-powered Ethernet switches against lightning-induced surges on DC input lines. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after primary MOV/GDT stages to handle residual fast transients and improve let-through voltage. Use Value: 170 V VWM allows safe operation across full 48 V ±10 % nominal range while clamping to 275 V-well below typical 300 V isolation barrier ratings. | Use Scenario: Hardening USB-C receptacle VBUS lines in portable monitors against human-body-model (HBM) ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Bi-directional shunt protector placed upstream of USB PD controller to clamp ±15 kV contact discharge per IEC 61000-4-2. Use Value: Symmetrical clamping eliminates need for dual uni-directional devices, saving board space and simplifying layout near high-density connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170CA-E3/61T | Lower PPPM (400 W), smaller DO-214AC (SMA) package, higher RθJA (110 °C/W) | Suitable only for lower-energy transients; limited thermal margin in high-ambient environments | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 level 2 |
| 1.5KE170CA | Through-hole TO-218 package, same VWM/VC specs, higher IFSM (200 A), but no AEC-Q101 qualification | Lacks automotive qualification; incompatible with SMT-only assembly processes | Choose for legacy through-hole designs where rework flexibility or higher surge repetition tolerance is prioritized over AEC compliance |
Compared with SMCJ170C-E3/57T, SMAJ170CA-E3/61T offers footprint reduction at the cost of 73 % lower surge power handling and inferior thermal performance, while 1.5KE170CA provides identical electrical protection in a non-SMT, non-automotive-qualified form factor.
Availability
SMCJ170C-E3/57T is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, and telecom DC power feed applications requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCJ170C-E3/57T 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, precision, and automotive-grade qualification.
The SMCJ series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power, surface-mount transient suppression in harsh environments including automotive, industrial control, and telecommunications infrastructure.
FAQ
What does the "C" suffix indicate in SMCJ170C-E3/57T?
The "C" in SMCJ170C-E3/57T denotes bi-directional functionality, meaning the device clamps transient voltages symmetrically in both polarities. Unlike uni-directional variants (e.g., SMCJ170A), the SMCJ170C-E3/57T has no cathode marking and is used where AC signals, floating references, or bidirectional data lines require equal protection in positive and negative voltage excursions. This is confirmed in Vishay's datasheet section "Devices for Bi-Direction Applications".
Is SMCJ170C-E3/57T RoHS compliant and lead-free?
Yes, SMCJ170C-E3/57T is RoHS compliant and lead-free. The "E3" suffix explicitly indicates RoHS-compliant construction per Directive 2011/65/EU, with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards. Vishay's material categorization documentation (doc?99912) confirms full compliance, and the device passes JESD 201 Class 1A whisker testing.
What is the maximum clamping voltage for SMCJ170C-E3/57T under standard test conditions?
The maximum clamping voltage (VC) for SMCJ170C-E3/57T is 275 V, measured at a peak pulse current (IPPM) of 5.5 A using the standardized 10/1000 µs double-exponential waveform. This value is specified in the Electrical Characteristics table on page 2 of Vishay document 88394 and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Can SMCJ170C-E3/57T be used in automotive applications?
Yes, SMCJ170C-E3/57T is AEC-Q101 qualified, making it suitable for automotive applications including powertrain control units, body electronics, and infotainment systems. Its –55 °C to +150 °C operating junction temperature range, MSL Level 1 rating, and validation against stress tests such as HTGB, HTRB, and TCT ensure reliability in under-hood and cabin environments per automotive quality requirements.
How does the DO-214AB (SMCJ) package of SMCJ170C-E3/57T affect thermal performance?
The DO-214AB (SMCJ) package of SMCJ170C-E3/57T provides a thermal resistance of RθJA = 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal, enabling effective heat dissipation during repetitive surge events. This is significantly better than smaller packages like DO-214AC (SMA), and the low RθJL = 15 °C/W further supports efficient conduction from junction to PCB, sustaining 1500 W peak pulse power without thermal runaway.
SMCJ170C-E3/57T 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):
- 170V
- Voltage - Breakdown (Min):
- 189V
- Voltage - Clamping (Max) @ Ipp:
- 304V
- Current - Peak Pulse (10/1000µs):
- 4.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ170C-E3/57T FAQ
1.How can I place an order for SMCJ170C-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ170C-E3/57T 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 SMCJ170C-E3/57T reliable?
The price and inventory of SMCJ170C-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ170C-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ170C-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ170C-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ170C-E3/57T?
SMCJ170C-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ170C-E3/57T 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 SMCJ170C-E3/57T?
For technical support, including SMCJ170C-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ170C-E3/57T requirements.
6.How does Aetrix verify that SMCJ170C-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ170C-E3/57T 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 SMCJ170C-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ170C-E3/57T?
All SMCJ170C-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ170C-E3/57T, 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 SMCJ170C-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ170C-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ170C-E3/57T 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 …
