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Ohmite TA810PW33R0JE
- Part Number:
TA810PW33R0JE
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- Category:
- RoHs:
RoHS Compliant - Datasheet:
TA810PW33R0JE_Datesheet - Description:
RES 33 OHM 5% 10W POWERCHIP
- In stock 0
TA810PW33R0JE Accessories – Model Information
1. Device Overview
| Parameter | Specification |
|---|---|
| Model | TA810PW33R0JE |
| Series | TA (Ohmite Power Chip Thick-Film) |
| Type | 10 W wrap-around power resistor on alumina substrate |
| Resistance | 33 Ω |
| Tolerance | ±5 % (J) |
| TCR | 50 ppm/°C (typ. >101 Ω) |
| Power Rating | 10 W @ 25 °C free-air |
| Operating Temp. | −55 °C to +180 °C |
| Max. Working V | 500 VDC (glass), 1500 VDC (substrate) |
| Withstand V | 5000 V through back-side |
| Inductance | 50 nH – 100 nH |
| Parallel Cap. | ≤1 pF @ 100 MHz |
| RoHS | Fully RoHS-compliant, lead-free |
| Substrate | 96 % alumina, glass over-coat |
| Terminations | Solder-plated phosphor bronze |
2. Mechanical Dimensions & Land Pattern
| Dimension | mm (typ.) | inch (typ.) |
|---|---|---|
| Length (L) | 20.32 | 0.800 |
| Width (W) | 12.70 | 0.500 |
| Thickness (H) | 1.00 | 0.040 |
| Pin spacing (P) | 5.08 | 0.200 |
| Pin diameter | 1.78 | 0.070 |
| Land pattern | 6.35 × 14.5 mm pads, 5.08 mm pitch | Through-hole |
| Package style | PW (wrap-around) | 10 W standard Mechanical drawing: Ohmite TA810PW outline 102-5xx, available on request. |
3. Recommended External Hardware (Not Supplied)
| Item | Value / Type | Purpose | Notes |
|---|---|---|---|
| PCB holes | Ø 1.90 mm (±0.05 mm) | Pin insertion | 0.64 mm (0.025″) lead clearance |
| Pad diameter | 2.20 mm | Solder fillet | 0.15 mm annular ring |
| Solder | SAC305, Sn96.5/Ag3.0/Cu0.5 | Lead-free | 260 °C max peak |
| Heat-sink screw | M3 × 10 mm + nut | Optional bottom plate | Torque 0.5 N·m max |
| Thermal compound | 1 W/m·K silicone | Back-side contact | <0.1 mm layer |
4. Thermal & Power Accessories
| Accessory | Description | Order Code / Source | Notes |
|---|---|---|---|
| Sil-Pad 400 | 0.23 mm, 1.4 W/m·K isolation | Bergquist SP400-0.007-00 | Cut 12 × 20 mm |
| TO-220 insulator | Re-use for TA810PW | Bergquist 114-7 | Same outline |
| Heatsink | Ohmite HSA-TA810 | Clip-on anodised Al | 25 % power increase |
| Fan kit | 40 mm × 40 mm 12 V | Generic | 100 LFM drops case ΔT by 30 % |
5. Evaluation / Demo Hardware
| Board | Content | Notes |
|---|---|---|
| TA-EVAL-10W | Universal 4-position 10 W resistor PCB | Plated through-holes, 4 × TA810PW slots, 4-wire Kelvin, banana jacks |
| TA810PW-SMP | Single-part surface-mount adaptor | Converts PW to 0.5″ × 0.8″ SMD land Order via Ohmite or distributors (Digi-Key, Mouser). |
6. CAD & Simulation Models
| File Type | File / Source | Content |
|---|---|---|
| Symbol & Footprint | TA810PW.lbr (SnapEDA, SamacSys) | Eagle, Altium, KiCad |
| Spice model | TA810PW_33R.lib | Temperature de-rating, 1st-order TCR |
| Step model | TA810PW.step | Mechanical 3-D for thermal simulation |
| Thermal image | IR_10W_PW.jpg | 25 °C ambient, 10 W steady-state |
7. Environmental & Reliability Data
| Test | Condition | ΔR Limit |
|---|---|---|
| Life | 25 °C, 10 W, 90 min ON / 30 min OFF, 1000 h | ±(1 % + 0.05 Ω) |
| Moisture load | 60 °C, 90-95 % RH, rated power, 1000 h | ±(0.25 % + 0.05 Ω) |
| Temp. cycling | −55 °C ↔ +150 °C, 5 cycles | ±(0.25 % + 0.05 Ω) |
| Solder heat | 350 °C pot, 3 s | ±(0.25 % + 0.05 Ω) |
| Overload | 5 × rated power, 1 s avg. ≤ 10 W | ±2 % |
8. Standard Part Number Matrix (TA810PW)
| Watt | Package | Pin Spacing | Example (33 Ω 5 %) | Status |
|---|---|---|---|---|
| 10 W | PW | — | TA810PW33R0JE | Active, stock |
| 10 W | PA | 0.3″ | TA310PA33R0JE | Alternative, smaller body |
| 10 W | PY | — | TA810PY33R0FE | 1 %, high-stability |
9. Summary Table – TA810PW33R0JE Accessory Overview
| Category | Specification / Accessory | Notes |
|---|---|---|
| Resistor | 33 Ω, 10 W, ±5 %, 50 ppm/°C, PW | Alumina substrate, −55 °C to +180 °C |
| Mechanical | 20.3 × 12.7 × 1.0 mm, 0.2″ pin pitch | Through-hole, 1.78 mm Ø pins |
| Thermal | Optional Sil-Pad, clip-on heatsink, 12 V fan | 25 % power increase with heatsink |
| PCB | Ø 1.9 mm holes, 2.2 mm pads, 5.08 mm pitch | Plated-through, 0.64 mm lead clearance |
| Solder | SAC305, 260 °C peak, 3 s max | Lead-free, RoHS |
| Models | Symbol, STEP, Spice, thermal image | Free download (SnapEDA, Ohmite) |
| Evaluation | TA-EVAL-10W 4-position board | Kelvin sensing, banana jacks |
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