P4KE150CA_R2_10001 - 400W 128V Bidirectional TVS | Panjit DO-41
部品番号: P4KE150CA_R2_10001 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.18 | $0.18 |
| 10 | $0.15 | $1.50 |
| 100 | $0.12 | $12.00 |
| 500 | $0.09 | $45.00 |
| 1,000 | $0.07 | $70.00 |
| 5,000 | $0.05 | $250.00 |
P4KE150CA_R2_10001 概要
A Transient Voltage Suppressor (TVS) is a specialized clamping diode built around a large-junction avalanche structure. When reverse-biased, the TVS exhibits a high impedance; once the applied voltage exceeds the breakdown (avalanche) voltage, the device conducts heavily, diverting transient energy away from sensitive downstream circuitry. TVS diodes sit within the broader protection-component hierarchy: rejection-clamp-protective component-circuit protection-overvoltage protection. P4KE-series parts from multiple vendors are second-source equivalents sharing the same DO-41 package and 400 W/10/1000 µs pulse rating.
Key differentiating specifications of the P4KE150CA_R2_10001 include a 400 W peak pulse power rating (10/1000 µs), a glass-passivated junction for stable avalanche behavior, an axial through-hole DO-41 form factor with 9.5 mm lead length, and a low typical reverse leakage below 5 µA at the rated standoff voltage. The bidirectional construction allows it to replace two unidirectional TVS diodes in anti-series, simplifying PCB layout on balanced signal lines and AC-rectified rails.
The device is built on a glass-passivated die with a precision-controlled avalanche junction. This construction gives sub-nanosecond turn-on response and stable V-I characteristics over temperature, ensuring predictable clamping under repetitive surge events. The DO-41 axial package provides thermal resistance suitable for 1 W steady-state dissipation on moderate PCB copper, supporting long-term reliability in continuous overvoltage scenarios.
Typical applications include 110/120 V AC-rectified bus protection, industrial 24 V and 48 V DC rail transient suppression, telecom line-card secondary protection, and protection of MOSFET/IGBT gate drivers exposed to inductive kickback. The wide standoff voltage range also suits photovoltaic inverter auxiliary rails and HVAC control interfaces.
When designing with this part, ensure the maximum clamping voltage (207 V at 2 A) does not exceed the protected IC's absolute-maximum rating under worst-case surge conditions. Derate steady-state power to 1 W (or less at elevated ambient) and provide adequate lead-bend strain relief at the PCB through-hole.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not gathered in the manufacturer datasheet alone, enabling faster BOM validation and supply-chain risk assessment.
ドロップイン代替品: P4KE150CA_R2_10001 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
P4KE150CA_R2_00001
✅ ドロップイン📋 参考代替品（カタログ未掲載）
P4KE150CA
✅ ドロップイン📋 参考代替品（カタログ未掲載）
P4KE150CA-B
✅ ドロップイン📋 参考代替品（カタログ未掲載）
P4KE150CA-G
✅ ドロップイン📋 参考代替品（カタログ未掲載）
P4KE150CA
✅ ドロップイン📋 参考代替品（カタログ未掲載）
P4KE150CA_R2_10001 仕様
| Peak Pulse Power (10/1000 µs) | 400 W |
| Steady-State Power | 1.0 W |
| Reverse Standoff Voltage (Vrwm) | 128 V |
| Breakdown Voltage (Vbr) @ 1 mA | 150 V (typical) |
| Maximum Clamping Voltage (Vc) @ Ipp | 207 V at 2 A |
| Peak Pulse Current (Ipp) | 2.0 A |
| Polarity | Bidirectional |
| パッケージ | DO-204AL (DO-41) axial |
| Junction Type | Glass passivated |
| 実装タイプ | Through Hole (axial) |
| Lead Length | 9.5 mm |
| 動作温度 | -55C to +175C |
| RoHS ステータス | Compliant |
| Reverse Leakage at Vrwm | <5 µA typical |
P4KE150CA_R2_10001 ピン構成
| ピン 1 | Anode — Lead 1 (functionally interchangeable with lead 2 on bidirectional CA variant) |
| ピン 2 | Cathode — Lead 2 (band-marked side; bidirectional device has no polarity) |
主な用途
P4KE150CA_R2_10001 の用途: 6 件s: 120 VAC Rectified Bus Protection, Industrial 24V / 48V DC Rail Transient Suppression, Telecom Line-Card Secondary Protection, MOSFET / IGBT Gate Driver Protection, Photovoltaic Inverter Auxiliary Rail Protection, HVAC Control Interface Protection.
120 VAC Rectified Bus Protection
The P4KE150CA_R2_10001 is ideal for 120 VAC full-wave rectified bus protection. The 128 V reverse standoff comfortably exceeds the nominal 170 V peak rectified line voltage during normal operation, so the TVS presents high impedance and does not interfere with the power supply. When line transients (lightning, inductive load switching) push the bus above 150 V breakdown, the bidirectional avalanche junction conducts and clamps the voltage to a maximum of 207 V at 2 A peak pulse current, diverting transient energy away from downstream DC bus capacitors and load ICs. The 400 W peak pulse rating on 10/1000 µs provides adequate margin for typical IEEE C62.41 location-category B surge events, while the bidirectional 'CA' polarity simplifies PCB layout on AC-derived rails where transient polarity is undefined. Designers should place the TVS as close to the bus entry as possible to minimize parasitic lead inductance.
おすすめ
Industrial 24V / 48V DC Rail Transient Suppression
For industrial 24 V and 48 V DC power rails exposed to motor back-EMF, relay coil kickback, and ESD, the P4KE150CA_R2_10001 clamps fast-rising transients before they reach sensitive PLC or sensor interface ICs. The 128 V standoff sits well above 24 V or 48 V nominal rails, so the TVS only conducts during fault events. The glass-passivated junction enables sub-nanosecond turn-on response, faster than typical MOV or polymer-based suppressors, ensuring protection clamping starts before IC damage thresholds are exceeded. The 207 V maximum clamping voltage at 2 A Ipp is acceptable for industrial-grade ICs rated to 60-100 V, providing reliable transient suppression on factory automation backplanes. The DO-41 axial package with 9.5 mm lead length supports hand-soldering and through-hole assembly typical in industrial control cabinets.
おすすめ
Telecom Line-Card Secondary Protection
The P4KE150CA_R2_10001 provides secondary transient protection on telecom line cards behind a primary PTC fuse or fail-short gas discharge tube. After the primary protector handles the bulk of the surge current, the P4KE150CA clamps residual transients that pass through to the secondary side. Its 400 W peak pulse rating supports secondary-stage energy limits typical of ITU-T K.20/K.21 telecom surge requirements. The 128 V standoff accommodates typical -48 V telecom bus offsets with adequate headroom, while the bidirectional polarity handles ringing transients common on twisted-pair interfaces. The DO-41 through-hole form factor simplifies field-service replacement on legacy telecom equipment that uses hand-soldered axial protection components, and the glass-passivated junction provides stable V-I characteristics over decades of field operation.
おすすめ
MOSFET / IGBT Gate Driver Protection
In MOSFET and IGBT gate driver stages exposed to inductive kickback from motor loads or transformer primary leakage, the P4KE150CA_R2_10001 clamps the residual transient that appears across the gate-driver supply or half-bridge node. Placed between the gate-driver bootstrap rail and ground, the TVS activates if the high-side driver loses supply during a switching event and the bootstrap diode reverse-biases. The 128 V standoff sits well above typical 15 V or 20 V gate-driver rails, so the TVS is invisible during normal operation but conducts heavily during inductive transients, protecting the gate-driver IC from overvoltage breakdown. The bidirectional polarity handles both positive and negative ringing common in half-bridge topologies, and the DO-41 axial package fits the through-hole assembly typical of power-stage PCBs with high creepage requirements.
おすすめ
Photovoltaic Inverter Auxiliary Rail Protection
The P4KE150CA_R2_10001 protects auxiliary rails inside photovoltaic string inverters, where 24 V or 48 V control supplies coexist with 600 V+ DC bus transients coupled through transformer inter-winding capacitance. The 128 V standoff provides adequate margin for 48 V auxiliary rails, while the 400 W peak pulse power handles inductive transients from relay and contactor switching during grid-fault ride-through events. The bidirectional polarity is essential in floating-auxiliary topologies where the supply reference is not ground-tied, ensuring symmetric protection. The -55°C to +175°C operating range covers outdoor inverter thermal environments, and the glass-passivated junction maintains stable breakdown voltage under prolonged high-temperature operation at full 1 W steady-state dissipation. Designers should derate to 0.5 W or less at elevated ambient for long-term outdoor reliability.
おすすめ
HVAC Control Interface Protection
Inside HVAC control boards, the P4KE150CA_R2_10001 clamps 24 VAC contactor-coil back-EMF transients and ESD events at user-accessible terminals. The 128 V standoff sits comfortably above the 34 V peak of 24 VAC lines, so the TVS is invisible during normal operation. When a contractor coil de-energizes, the inductive kickback is clamped to 207 V maximum by the bidirectional avalanche junction, protecting low-voltage microcontroller GPIO pins and signal-line transceivers. The DO-41 axial package is well-suited to through-hole HVAC control assemblies that must survive years of temperature cycling in attic or outdoor-unit environments. The glass-passivated junction provides stable V-I characteristics over -40°C to +85°C HVAC thermal ranges, ensuring reliable long-term protection. Lead-forming options support vertical or horizontal PCB mounting for tight HVAC control enclosures.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: P4KE150CA_R2_10001 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | P4KE150CA_R2_00001 | P4KE150CA | P4KE150CA-B | P4KE150CA-G | P4KE150CA |
|---|---|---|---|---|---|---|
| Brand | Panjit | Panjit | Littelfuse | Littelfuse | Comchip Technology | Rectron |
| Package | DO-41 axial | DO-41 axial - same | DO-41 axial - same | DO-41 axial - same | DO-41 axial - same | DO-41 axial - same |
| Peak Pulse Power (10/1000 µs) | 400 W | 400 W | 400 W | 400 W | 400 W | 400 W |
| Reverse Standoff Voltage (Vrwm) | 128 V | 128 V | 128 V | 128 V | 128 V | 128 V |
| Breakdown Voltage (Vbr) typical | 150 V | 150 V | 150 V | 150 V | 150 V | 150 V |
| Maximum Clamping Voltage at Ipp | 207 V at 2 A | 207 V at 2 A | 207 V at 2 A | 207 V at 2 A | 207 V at 2 A | 207 V at 2 A |
| Polarity | Bidirectional | Bidirectional | Bidirectional | Bidirectional | Bidirectional | Bidirectional |
| Operating Temperature | -55C to +175C | -55C to +175C | -55C to +175C | -55C to +175C | -55C to +175C | -55C to +175C |
主な差別化要因
- Panjit factory-direct reel code R2_10001 provides factory-fresh inventory （vs P4KE150CA_R2_00001)
- Multi-vendor second-source availability （vs P4KE150CA (Littelfuse))
- Higher peak pulse power per dollar than legacy 1N-series TVS （vs Generic 150V Zener clamp)
設計ノート
Estimated: at 25°C ambient with the DO-41 lead-mounted on a 0.5 sq inch copper pad, the device can dissipate approximately 1 W steady-state; at 100°C ambient, derate to 0.5 W. The axial lead provides the primary thermal path, so lead-bend length and PCB copper area directly affect the maximum continuous dissipation. For continuous high-temperature operation, mount with at least 10 mm of lead length in contact with PCB copper to maintain the 31.4°C/W typical theta-JA of the DO-41 package.
Do not assume unidirectional protection on a bidirectional TVS - the 'CA' suffix denotes bidirectional polarity, so the clamping voltage is symmetric for both positive and negative transients. When placing the TVS, position it as close as possible to the protected IC or connector entry to minimize parasitic lead inductance, which can add 10-30 V of ringing on fast-rising surge edges. If a higher standoff is needed, choose the P4KE180CA (154 V Vrwm) rather than stacking the -P4KE150CA in series; stacked TVS parts do not share current evenly.
For AC line or DC bus protection, place the TVS within 5 mm of the bus entry terminal or fuse holder. Use a wide PCB trace (>= 2 mm) or a heavy-gage wire from the TVS lead to the protected circuit ground to minimize parasitic inductance, which causes voltage overshoot during fast transient edges. If the protected IC is far from the bus entry, place a secondary TVS closer to the protected IC for two-stage protection; the P4KE150CA handles bulk surge energy while a smaller SMD TVS (e.g., SMAJ-series) absorbs residual high-frequency ringing.
コンプライアンス情報
RoHS compliant per Mouser and Panjit product listings. Halogen-free plastic package per Littelfuse P4KE-series datasheet (industry-standard second-source spec). Not AEC-Q100 qualified - for automotive TVS protection, choose an AEC-Q100-qualified part such as the SMAJ-series from a vendor that publishes automotive qualification.
