My Inquiry
My Account
Diodes Incorporated P6KE170A-T
- Part No.:
- P6KE170A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170A-T.pdf
- Description:
- TVS DIODE 145VWM 234VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:2,875
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE170A-T from Diodes Incorporated is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 145V reverse standoff voltage (VRWM), 162V minimum breakdown voltage (VBR), 234V maximum clamping voltage (VC) at 2.6A peak pulse current (IPP), and DO-15 package with glass-passivated junction - used in industrial power supplies and automotive ECU input protection.
For engineers reviewing the P6KE170A-T datasheet, P6KE170A-T pinout, P6KE170A-T application, or P6KE170A-T equivalent, this page delivers verified electrical parameters, clamping behavior under 1.0ms 600W transients, thermal derating curves, and direct replacement guidance for legacy surge suppression designs requiring IEC 61000-4-2/4-5 compliance.
Technical Context
The P6KE170A-T operates as a unidirectional avalanche diode that remains non-conductive below VRWM (145V) and enters low-impedance clamping mode above VBR (162–179V), limiting transient energy to safe levels across protected circuits. Its 1.0ms pulse waveform response enables robust handling of lightning-induced surges and inductive switching spikes.
Thermal design relies on its RθJA of 75°C/W and steady-state power dissipation of 5.0W at TL = +75°C, with lead-length-dependent derating per Figure 5. The device is rated for operation from –55°C to +175°C and exhibits <5.0µA reverse leakage at VRWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W for 1.0ms non-repetitive transient - defines maximum surge energy absorption capability |
| Reverse Standoff Voltage (VRWM) | 145V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 162–179V @ 1.0mA - onset voltage where avalanche conduction initiates reliably |
| Clamping Voltage (VC) | 234V @ 2.6A IPP - maximum voltage seen by protected circuit during worst-case surge |
| Package | DO-15 - axial-leaded, molded plastic case rated UL 94V-0, 0.4g mass, 9.5mm lead length |
| Operating Temperature | –55°C to +175°C - supports under-hood automotive and high-temp industrial environments |
| RoHS Compliance | Lead-free, halogen-free, RoHS 2 compliant - meets EU Directive 2011/65/EU requirements |
Pinout & Package
DO-15 package: axial-leaded, glass-passivated silicon junction, cathode band marked on body. Leads are tin-plated, solderable per MIL-STD-202 Method 208, with 9.5mm lead length for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side reference in unidirectional TVS configuration |
| Cathode | Current exit point during forward conduction; marked with band | Connected to protected line - conducts when line voltage exceeds VBR relative to ground |
Key Features
| Feature | Design Value |
|---|---|
| 600W Peak Pulse Rating | Enables single-device protection against IEC 61000-4-5 Level 3 (1kV/2Ω) surges on 24V/48V systems |
| Glass-Passivated Junction | Improves long-term reliability and moisture resistance vs. epoxy-passivated alternatives |
| Fast Response Time | Sub-nanosecond turn-on ensures clamping before sensitive downstream ICs experience overstress |
| Low Clamping Ratio (VC/VBR) | 1.45 typical - tight ratio minimizes voltage overshoot during fast-rising transients |
| AEC-Q200 Readiness | Manufactured in IATF 16949 certified facilities - supports PPAP-capable automotive qualification paths |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24V DC input rail of programmable logic controller (PLC) exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input stage. Use Value: Limits transient voltage to ≤234V, preventing damage to 36V-rated input capacitors and MOSFET gate oxides. | Use Scenario: LIN bus or sensor supply line in BCM subjected to ISO 7637-2 pulse 1/2a/3a transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected between supply rail and chassis ground. Use Value: Absorbs 600W pulses without degradation, maintaining <5µA leakage at 145V nominal operating voltage. |
| Telecom Remote Radio Unit (RRU) | Renewable Energy Inverter DC Link |
Use Scenario: 48V auxiliary power input of outdoor RRU enclosure vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage protection before EMI filter and DC-DC regulation. Use Value: Withstands repeated 1.0ms surges up to 2.6A while maintaining stable clamping performance across –40°C to +85°C ambient. | Use Scenario: DC link between PV array and inverter where voltage can reach 150V under open-circuit conditions. IC Role / Device Role / Timing Role: Overvoltage clamp on high-side DC bus to protect IGBT gate drivers and sensing circuitry. Use Value: 179V max VBR ensures reliable conduction before 200V-rated components exceed absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | Same VRWM (145V) and VC (234V), but SMC package (higher thermal mass, lower RθJA) | Better suited for higher ambient temperature or repetitive surge environments due to improved thermal dissipation | Select when board space allows SMC footprint and thermal budget exceeds DO-15 limits |
| P6KE170CA | Bidirectional version - symmetric clamping for AC-coupled or floating signal lines | Required for differential data lines (e.g., RS-485) or AC power inputs where polarity reversal occurs | Choose only if bidirectional protection is mandated by system architecture or standards |
Compared with SMBJ170A and P6KE170CA, the P6KE170A-T offers lowest cost and smallest PCB footprint in axial DO-15 form, making it optimal for cost-sensitive, space-constrained DC rail protection where unidirectional clamping suffices and thermal load remains within 5W steady-state limits.
Availability
P6KE170A-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom remote units, and renewable energy inverters requiring stable component supply despite its obsolete status - inventory is actively managed for legacy program continuity.
Supply support for P6KE170A-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The P6KE series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for high-energy surge immunity in industrial, automotive, and telecom infrastructure - emphasizing reliability, repeatable clamping, and AEC-Q200-aligned process control.
FAQ
What does the "-T" suffix indicate in P6KE170A-T?
The "-T" suffix denotes tape-and-reel packaging: 4,000 units per 13-inch reel, optimized for automated SMT placement. This format ensures consistent feeding, reduces handling damage, and supports high-volume production - distinct from bulk or ammo-pack variants which lack reel compatibility.
Is P6KE170A-T still recommended for new designs?
No - Diodes has officially discontinued the P6KE series (DS21502 Rev. 20-4 states "OBSOLETE – PART DISCONTINUED"). While Aetrix maintains legacy stock for ongoing production, new designs should migrate to SMBJ170A or SMF170A for improved thermal performance and active support, with full documentation and lifetime buy options available.
How does P6KE170A-T differ from P6KE170CA?
P6KE170A-T is unidirectional (cathode-banded), conducting only when anode-to-cathode voltage exceeds VBR; P6KE170CA is bidirectional (no band), clamping both polarities symmetrically. Their VRWM, VBR, and VC values match, but CA requires no polarity-aware layout - critical for AC or differential signal protection where voltage reversals occur.
Can P6KE170A-T be used in place of P6KE150A?
No - P6KE170A-T has higher VRWM (145V vs. 128V), VBR (162–179V vs. 143–158V), and VC (234V vs. 207V). Substituting it risks insufficient clamping margin on 150V-rated systems and may allow damaging overvoltage before conduction begins. Always match VRWM to system's maximum continuous operating voltage.
P6KE170A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE170A-T FAQ
1.How can I place an order for P6KE170A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170A-T 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 P6KE170A-T reliable?
The price and inventory of P6KE170A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170A-T is usually 5 days.
3.What payment methods are accepted for P6KE170A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170A-T?
P6KE170A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170A-T 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 P6KE170A-T?
For technical support, including P6KE170A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170A-T requirements.
6.How does Aetrix verify that P6KE170A-T is sourced from the original manufacturer or authorized distributors?
All P6KE170A-T 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 P6KE170A-T meets industry standards.
7.What is the process for return or replacement of P6KE170A-T?
All P6KE170A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170A-T, 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 P6KE170A-T part is unused and in its original packaging.
Return procedure for P6KE170A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE170A-T 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
