SMCJ33CA-E3/57T Vishay TVS Diode (Bi-directional) (Diodes Moulded Non Polarised) In Stock

Name: SMCJ33CA-E3/57T
Brand: Vishay
SKU: SMCJ33CA-E3/57T
Availability: InStock

Vishay SMCJ33CA-E3/57T is a bi-directional silicon TVS diode rated at 1500 W peak pulse power in a 2-pin SMC package with a 33 V standoff voltage and 53.3 V maximum clamping voltage. Designed for excellent transient suppression on AC and bipolar signal lines. Available from stock with worldwide shipping.

ACTIVETVS Diode (Bi-directional)Verified Jun 2026

Package / Visual Reference

SMCJ33CA-E3/57TDiodes Moulded Non Polarised

Quick Facts

Manufacturer: Vishay
Package: Diodes Moulded Non Polarised
Pin Count: 2
Lifecycle: ACTIVE
Datasheet: SMCJ33CA-E3/57T Datasheet PDF
Category: TVS Diode (Bi-directional)
Price: From $0.1092(MOQ 216)
Temp Range: -55.0°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of SMCJ33CA-E3/57T?

1500 W peak pulse power (10/1000 µs waveform) with 53.3 V maximum clamping voltage for robust transient protection
Bi-directional configuration handles both positive and negative transients on AC lines, RS-485 buses, and motor-drive outputs
SMC (DO-214AB) surface-mount package provides a compact 2-pin footprint with excellent thermal dissipation for high-energy surges

What is SMCJ33CA-E3/57T used for?

The SMCJ33CA-E3/57T is used to protect AC power lines, industrial field-bus interfaces, and motor-drive outputs operating at up to 33 V standoff from lightning-induced surges, EFT bursts, and inductive switching transients. Its bi-directional 1500 W peak capability meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment. The SMC package's low inductance and large junction area make it suitable for board-level protection in variable-speed drives, PLC output modules, and renewable energy inverters.

What are the specifications of SMCJ33CA-E3/57T?

Factory Lead Time	11Weeks
YTEOL	7
Additional Feature	EXCELLENT CLAMPING CAPABILITY
Breakdown Voltage-Max	40.6V
Breakdown Voltage-Min	36.7V
Breakdown Voltage-Nom	38.65V
Clamping Voltage-Max	53.3V
Configuration	SINGLE
Diode Element Material	SILICON
Diode Type	TRANS VOLTAGE SUPPRESSOR DIODE
JEDEC-95 Code	DO-214AB
JESD-30 Code	R-PDSO-C2
JESD-609 Code	e3
Non-rep Peak Rev Power Dis-Max	1500W
Number of Elements	1
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Polarity	BIDIRECTIONAL
Power Dissipation-Max	6.5W
Qualification Status	Not Qualified
Reference Standard	UL RECOGNIZED
Rep Pk Reverse Voltage-Max	33V
Surface Mount	YES
Technology	AVALANCHE
Terminal Finish	Matte Tin (Sn)
Terminal Form	C BEND
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Package	Diodes Moulded Non Polarised

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8541.10.00.50
Country of Origin	Mainland China, Taiwan

Where can I find the SMCJ33CA-E3/57T datasheet?

SMCJ33CA-E3/57T Datasheet Download

Official datasheet from Vishay

What are equivalent replacements for SMCJ33CA-E3/57T?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What is the peak pulse power rating of the SMCJ33CA-E3/57T and under what waveform condition is it specified?

The SMCJ33CA-E3/57T is rated at 1500 W peak pulse power under a 10/1000 µs standard test waveform. This rating represents the maximum transient energy the device can absorb in a single pulse without damage, making it suitable for protecting 33 V standoff circuits against lightning-coupled surges and industrial EFT events specified by IEC 61000-4-5.

What breakdown voltage range and clamping voltage does the SMCJ33CA-E3/57T specify?

The SMCJ33CA-E3/57T has a nominal breakdown voltage of 38.65 V, with a minimum of 36.7 V and a maximum of 40.6 V at the test current. When clamping a transient, the maximum clamping voltage (VCL) is 53.3 V, ensuring downstream circuitry rated above 53.3 V remains protected during a 1500 W peak surge event.

Why choose a bi-directional TVS like the SMCJ33CA-E3/57T over a unidirectional device for RS-485 line protection?

RS-485 differential buses operate with signal swings in both positive and negative polarities relative to ground, meaning transients can appear with either polarity. A unidirectional TVS conducts in only one direction and may not clamp reverse-polarity surges below 53.3 V. The SMCJ33CA-E3/57T's bi-directional silicon junction symmetrically suppresses both polarities, providing complete transient protection across the full ±33 V differential range without requiring two back-to-back unidirectional diodes per line.

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Reference Price (USD)

From $0.1092

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
216+	$0.3248	$70.16
250+	$0.2289	$57.23
500+	$0.1864	$93.20
850+	$0.1092	$92.82

pcs

Unit price: $0.3248 · Total: $70.16

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy