My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPC30HM3/87A
- Part No.:
- TPC30HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC30HM3/87A.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,348
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPC30HM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial surge protection. It features a 30.0 V nominal breakdown voltage (VBR), 25.6 V stand-off voltage (VWM), clamping voltage of 41.4 V at 36.2 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC30HM3/87A datasheet, TPC30HM3/87A pinout, TPC30HM3/87A application, or TPC30HM3/87A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement in space-constrained PCB layouts.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time under 10/1000 µs transients. Its junction passivation enables stable operation at TJ = 185 °C, supporting automotive under-hood and industrial motor drive environments.
The device delivers precise clamping performance with ±5 % VBR tolerance (28.5–31.5 V), 1.0 mA test current, and 1.0 µA max reverse leakage at VWM, ensuring minimal standby power loss while maintaining robust ESD and load-dump immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 30.0 V - Ensures reliable triggering above system operating voltage (e.g., 24 V automotive rails) |
| VWM | 25.6 V - Maximum continuous reverse voltage without significant leakage |
| VC @ IPPM | 41.4 V - Clamped voltage during 36.2 A 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 1500 W - Peak pulse power handling per single non-repetitive transient |
| TJ max. | +185 °C - Enables use in high-temperature under-hood or industrial control enclosures |
| Polarity | Unidirectional - Protects against positive-going transients only; requires correct orientation in circuit |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; suitable for standard reflow without dry pack |
Pinout & Package
Package: SMPC (TO-277A), surface-mount, 3-terminal configuration with cathode band marking on terminal 1 side. Dimensions: 4.80 × 3.70 × 1.10 mm (L × W × H), low-profile design ideal for dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Cathode | Connected to protected line; reverse-biased during normal operation; conducts during overvoltage |
| Terminal 2 | Cathode | Parallel cathode path - shares surge current with Terminal 1; improves thermal distribution |
| Terminal 3 | Anode | Common ground reference; must be tied to system ground plane with low-inductance connection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Very low profile (1.1 mm height) | Enables use in ultra-thin modules and stacked PCB assemblies without interference |
| Halogen-free, RoHS-compliant HM3 suffix | Meets global environmental compliance requirements and JESD201 Class 2 whisker resistance |
| Optimized junction passivation | Reduces parameter drift over lifetime and improves stability under thermal stress |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protection of 24 V supply lines feeding ECUs, body controllers, and lighting modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Primary transient clamp placed upstream of DC-DC converters and LDOs. Use Value: Limits voltage excursion to ≤41.4 V during 36.2 A surges, preventing damage to 36 V-rated input stages. | Use Scenario: Surge suppression on gate driver supply rails and feedback signal paths in variable-frequency drives. IC Role / Device Role / Timing Role: Fast-response shunt protector for MOSFET/IGBT gate drivers exposed to back-EMF and commutation noise. Use Value: Sub-1 ns response ensures clamping before gate oxide breakdown thresholds are exceeded. |
| Automotive Sensor Interface | Telecom Power Input Stage |
Use Scenario: Reverse-polarity and transient protection for LIN/CAN node power inputs and analog sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Unidirectional front-end guard for precision amplifiers and ADC references. Use Value: 1.0 µA max leakage at 25.6 V preserves accuracy of µA-level sensor bias currents. | Use Scenario: Input-stage protection on 48 V telecom power supplies subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Secondary surge limiter after primary MOV/GDT stage in multi-level protection architecture. Use Value: 1500 W peak power rating supports coordination with upstream 10 kA-rated components without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VBR (30.0 V), but lower PPPM = 400 W; SMA package (larger footprint, higher thermal resistance) | Not AEC-Q101 qualified; limited to commercial/industrial use; unsuitable for automotive under-hood | Select when cost sensitivity outweighs power handling and automotive qualification requirements. |
| TPC30HM3/87A | Identical base part; /87A denotes specific tape-and-reel packaging (13" reel, 6500 pcs); HM3 suffix confirms halogen-free, AEC-Q101, MSL-1 | No functional difference - same electrical specs and qualification as TPC30AHM3_A/I | Preferred for high-volume automotive production requiring traceable, qualified reels with full compliance documentation. |
Compared with SMAJ30A and TPC30AHM3_A/I, the TPC30HM3/87A offers identical core protection performance but adds automotive-grade reliability, lower profile, and optimized thermal dissipation in TO-277A - critical for compact, high-temperature deployments where board space and long-term field stability are prioritized.
Availability
TPC30HM3/87A is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive control, automotive sensor interface, and telecom power input stage applications requiring stable component supply, AEC-Q101 compliance, and high-temperature operational assurance.
Supply support for TPC30HM3/87A 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 high-reliability diodes, MOSFETs, and TVS devices for automotive, industrial, and computing markets.
The TPC30HM3/87A belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-power transient suppression in harsh-environment applications demanding AEC-Q101 qualification and extended temperature operation.
FAQ
What is the breakdown voltage tolerance for TPC30HM3/87A?
The TPC30HM3/87A has a nominal breakdown voltage (VBR) of 30.0 V with a guaranteed range of 28.5 V to 31.5 V at 1.0 mA test current, corresponding to ±5 % tolerance. This tight specification ensures consistent clamping behavior across production lots and supports robust design margins in 24 V automotive systems where overvoltage thresholds must be precisely controlled.
Is TPC30HM3/87A suitable for bidirectional transient protection?
No, the TPC30HM3/87A is strictly unidirectional and protects only against positive-going transients on the cathode-to-anode path. For bidirectional protection, a separate device such as the SMBJ30CA or a dual-diode configuration would be required. Using TPC30HM3/87A in reverse-biased configurations risks permanent failure due to lack of reverse avalanche capability.
Does TPC30HM3/87A require derating at elevated ambient temperatures?
Yes, TPC30HM3/87A must be derated above TA = 25 °C per Figure 2 in the datasheet. At 100 °C ambient, its peak pulse power drops to approximately 70 % of the rated 1500 W. The device's 185 °C maximum junction temperature allows operation in high-heat zones, but PCB layout, copper area, and airflow must be validated to maintain TJ within limit under worst-case surge conditions.
What does the "/87A" suffix indicate in TPC30HM3/87A?
The "/87A" suffix identifies the packaging variant: 13-inch diameter plastic tape-and-reel with 6500 units per reel (package code "I"). It carries the same electrical and qualification characteristics as TPC30AHM3_A/I - the HM3 prefix confirms halogen-free, RoHS-compliant, AEC-Q101-qualified construction, and MSL Level 1 rating. No functional or parametric differences exist between /87A and other HM3-coded variants.
Can TPC30HM3/87A replace SMAJ30A in an existing design?
TPC30HM3/87A is not a direct drop-in replacement for SMAJ30A due to different package (SMPC vs. SMA) and pinout (3-terminal TO-277A vs. 2-terminal DO-214AC). While both share VBR = 30 V, the TPC30HM3/87A offers higher power (1500 W vs. 400 W), AEC-Q101 qualification, and lower profile - but requires PCB layout revision, pad redesign, and thermal validation. It is a functional upgrade, not a pin-compatible swap.
TPC30HM3/87A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 34.5A
- 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:
- TO-277A (SMPC)
TPC30HM3/87A FAQ
1.How can I place an order for TPC30HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC30HM3/87A 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 TPC30HM3/87A reliable?
The price and inventory of TPC30HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC30HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC30HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC30HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC30HM3/87A?
TPC30HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC30HM3/87A 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 TPC30HM3/87A?
For technical support, including TPC30HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC30HM3/87A requirements.
6.How does Aetrix verify that TPC30HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC30HM3/87A 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 TPC30HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC30HM3/87A?
All TPC30HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC30HM3/87A, 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 TPC30HM3/87A part is unused and in its original packaging.
Return procedure for TPC30HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC30HM3/87A 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 …
