My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMC47HE3_A/I
- Part No.:
- TPSMC47HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC47HE3_A/I.pdf
- Description:
- TVS DIODE 38.1VWM 67.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,699
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMC47HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for high-energy surge protection of sensitive electronics. It features 42.3 V to 51.7 V breakdown voltage (VBR), 40.2 V maximum working voltage (VWM), 1500 W peak pulse power (10/1000 μs), 22.1 A peak pulse current (IPPM), and 67.8 V clamping voltage (VC) - deployed in automotive power line and industrial sensor interface protection.
For engineers reviewing the TPSMC47HE3_A/I datasheet, TPSMC47HE3_A/I pinout, TPSMC47HE3_A/I application, or TPSMC47HE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, MSL Level 1 moisture sensitivity, and DO-214AB thermal performance on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive transients while maintaining low incremental surge resistance. Its 185 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments and high-reliability industrial control systems.
The device operates exclusively in unidirectional mode with cathode band marking, exhibits sub-nanosecond response time, and meets UL 94 V-0 flammability requirements in its molded DO-214AB package. Clamping performance is specified at IPPM = 22.1 A (10/1000 μs), yielding VC = 67.8 V - critical for protecting 42 V nominal systems against ISO 7637-2 pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 42.3 V / 51.7 V - ensures reliable triggering above 40.2 V system operating voltage while avoiding false trips during normal transients |
| VWM | 40.2 V - maximum continuous reverse standoff voltage compatible with 36–42 V automotive battery systems |
| PPPM | 1500 W - peak pulse power handling per 10/1000 μs waveform, sufficient for ISO 16750-2 Load Dump Category III |
| IPPM | 22.1 A - peak surge current capability at rated clamping voltage, validated on 8.0 mm × 8.0 mm copper pads |
| VC | 67.8 V - maximum clamped voltage at IPPM, limiting downstream IC stress during 10/1000 μs surges |
| TJ max. | +185 °C - enables operation in high-temperature engine bay locations without derating penalties |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard SMT assembly without dry-pack or baking requirements |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by color band. Complies with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path during surge | Connected to protected line (e.g., battery rail); conducts only during reverse-biased overvoltage events |
| Cathode | Clamping reference node | Marked with color band; tied to ground or lower-potential reference to define clamping threshold |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47 |
| 185 °C junction rating | Enables direct placement near heat sources (e.g., power modules) without thermal derating |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) up to 120 V with <100 ns response |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., inductive switch-off) |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed automotive or industrial enclosures |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 12 V/42 V battery-fed ECUs from load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤67.8 V, preventing damage to downstream PMICs rated for 70 V absolute maximum. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) TVS on signal lines upstream of op-amp inputs. Use Value: Sub-nanosecond response preserves signal integrity while diverting >15 kV contact ESD per IEC 61000-4-2. |
| Telecom Power Feeds | Computer PSU Input Stage |
|
Use Scenario: Safeguarding PoE-powered equipment front-end against induced lightning surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary surge suppression on 48 V DC input before DC-DC conversion. Use Value: 1500 W rating handles 10/1000 μs surges up to 22.1 A without degradation across 1000+ events. |
Use Scenario: Secondary-side overvoltage protection on ATX +12 V rail against regulator failure or backfeed. IC Role / Device Role / Timing Role: Fast-clamping TVS between rail and chassis ground to limit fault voltage. Use Value: 67.8 V clamping prevents MOSFET avalanche and capacitor overvoltage during sustained overvoltage faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/5T | Lower PPPM (400 W), smaller SMA package, VC = 69.4 V at 12.3 A | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a | Select when space-constrained and surge energy ≤400 W required |
| 1.5KE43A | Through-hole DO-201 package, same VBR/VC, PPPM = 1500 W, but no AEC-Q101 qualification | Not approved for automotive production; requires manual insertion or wave soldering | Select for cost-sensitive industrial prototypes where AEC-Q101 is not mandated |
Compared with SMAJ43A-E3/5T and 1.5KE43A, the TPSMC47HE3_A/I delivers automotive-grade reliability in surface-mount form with verified 1500 W surge handling - making it the preferred choice for production automotive and high-reliability industrial designs requiring zero rework risk and full AEC-Q101 traceability.
Availability
TPSMC47HE3_A/I is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface hardening, and telecom power feed surge suppression requiring stable component supply across multi-year production cycles.
Supply support for TPSMC47HE3_A/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, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade components.
The TPSMC series belongs to Vishay's PAR® (Protection and Regulation) transient suppressor family, engineered specifically for robust, high-temperature surge protection in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage range for TPSMC47HE3_A/I?
The TPSMC47HE3_A/I has a guaranteed breakdown voltage (VBR) range of 42.3 V to 51.7 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tolerance ensures consistent triggering behavior across production lots while accommodating 40.2 V maximum working voltage (VWM) in 42 V nominal systems. The specification is validated per AEC-Q101 stress testing.
Is TPSMC47HE3_A/I qualified for automotive use?
Yes, the TPSMC47HE3_A/I is fully AEC-Q101 qualified and rated for operation up to +185 °C junction temperature. It undergoes rigorous qualification including high-temperature reverse bias (HTRB), temperature cycling, and ESD testing per JESD47 - making it suitable for under-hood automotive applications such as body control modules and ADAS power supplies.
What is the clamping voltage of TPSMC47HE3_A/I at peak surge current?
The TPSMC47HE3_A/I clamps to a maximum of 67.8 V at its rated peak pulse current (IPPM) of 22.1 A under 10/1000 μs waveform conditions. This value is measured on standardized 8.0 mm × 8.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does TPSMC47HE3_A/I have unidirectional or bidirectional polarity?
The TPSMC47HE3_A/I is unidirectional only, with cathode identified by a visible color band on the DO-214AB (SMC) package. It functions as a reverse-biased Zener-like clamp and must be oriented with cathode toward the higher-potential rail (e.g., battery) and anode toward ground or lower potential to provide effective surge suppression.
What packaging and moisture sensitivity level does TPSMC47HE3_A/I use?
The TPSMC47HE3_A/I is supplied in 13-inch plastic tape and reel (package code "I") with 3500 units per reel. It meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C - eliminating the need for dry-packaging or baking prior to SMT assembly.
TPSMC47HE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 38.1V
- Voltage - Breakdown (Min):
- 42.3V
- Voltage - Clamping (Max) @ Ipp:
- 67.8V
- Current - Peak Pulse (10/1000µs):
- 22.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
TPSMC47HE3_A/I FAQ
1.How can I place an order for TPSMC47HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC47HE3_A/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 TPSMC47HE3_A/I reliable?
The price and inventory of TPSMC47HE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC47HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC47HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC47HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC47HE3_A/I?
TPSMC47HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC47HE3_A/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 TPSMC47HE3_A/I?
For technical support, including TPSMC47HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC47HE3_A/I requirements.
6.How does Aetrix verify that TPSMC47HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC47HE3_A/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 TPSMC47HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC47HE3_A/I?
All TPSMC47HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC47HE3_A/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 TPSMC47HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC47HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC47HE3_A/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 …
